KRITI SAMARIA

IMO 9329409

Vessel information

Vessel Name KRITI SAMARIA
IMO Number 9329409
MMSI 636017739
Vessel Type Tanker
Flag 🇱🇷 Liberia
Call Sign D5MM7
Length 241 m
Beam 42 m

Detected Events (100)

Zone Dwell Augusta, Sicily STS Zone
Oct 22, 2026 08:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 1h 50m
  • Data Points: 24 AIS positions
  • Period: 2026-10-22T08:04:21+00:00 to 2026-10-22T09:55:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 110.7000000000000028421709430404007434844970703125,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-10-22T08:04:21+00:00",
        "lat": 37.15548170000000283152985502965748310089111328125,
        "lon": 15.32388830000000012887539924122393131256103515625
    },
    "last_point": {
        "ts": "2026-10-22T09:55:00+00:00",
        "lat": 37.00357999999999947249307297170162200927734375,
        "lon": 15.4291032999999995212192516191862523555755615234375
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 22, 2026 07:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 2h 54m
  • Data Points: 44 AIS positions
  • Period: 2026-10-22T07:01:00+00:00 to 2026-10-22T09:55:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 174,
    "points_in_zone": 44,
    "first_point": {
        "ts": "2026-10-22T07:01:00+00:00",
        "lat": 37.20753330000000147492755786515772342681884765625,
        "lon": 15.1921666999999995795178620028309524059295654296875
    },
    "last_point": {
        "ts": "2026-10-22T09:55:00+00:00",
        "lat": 37.00357999999999947249307297170162200927734375,
        "lon": 15.4291032999999995212192516191862523555755615234375
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 22, 2026 06:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 3h 50m
  • Data Points: 53 AIS positions
  • Period: 2026-10-22T06:04:46+00:00 to 2026-10-22T09:55:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 230.19999999999998863131622783839702606201171875,
    "points_in_zone": 53,
    "first_point": {
        "ts": "2026-10-22T06:04:46+00:00",
        "lat": 37.207566700000000992076820693910121917724609375,
        "lon": 15.1921932999999995672624208964407444000244140625
    },
    "last_point": {
        "ts": "2026-10-22T09:55:00+00:00",
        "lat": 37.00357999999999947249307297170162200927734375,
        "lon": 15.4291032999999995212192516191862523555755615234375
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Augusta, Sicily STS Zone
Oct 22, 2026 06:01 UTC 79/100 ▼
Vessel A: IMO 9301885 (KALYMNOS DAWN) MARSHALL ISLANDS
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 75 meters
  • Average Distance: 93 meters
  • Duration: 1h 15m
  • Period: 2026-10-22T06:01:12+00:00 to 2026-10-22T07:16:13+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.4 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 79/100

Moderate-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 75m, avg 93m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.4 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 75m, avg 93m
Duration15/25Duration 75 minutes
Speed Stability14/20both nearly stationary; somewhat variable speeds
Distance Consistency15/15Distance variance ±25m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-22T11:45:06.883668+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538012309,
        "imo": 9301885,
        "name": "KALYMNOS DAWN",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 74.7000000000000028421709430404007434844970703125,
    "avg_distance_m": 92.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 24.800000000000000710542735760100185871124267578125,
    "duration_minutes": 75,
    "overlap_duration_s": 4501,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.429999999999999993338661852249060757458209991455078125,
    "speed_b_std": 0.67000000000000003996802888650563545525074005126953125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.429999999999999993338661852249060757458209991455078125,
            "max_sog": 1.3000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-10-22T06:01:12+00:00",
        "end": "2026-10-22T07:16:13+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 79,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 75m, avg 93m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 75 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b125m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 75m, avg 93m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.4 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 37.20770610000000289119270746596157550811767578125,
            "lon": 15.1925977999999997081204128335230052471160888671875
        },
        "time_window": {
            "start_ts": "2026-10-22T06:01:12+00:00",
            "end_ts": "2026-10-22T07:16:13+00:00"
        },
        "searched_at": "2026-10-22T11:45:06.883668+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 22, 2026 05:31 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 4h 23m
  • Data Points: 57 AIS positions
  • Period: 2026-10-22T05:31:46+00:00 to 2026-10-22T09:55:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 263.19999999999998863131622783839702606201171875,
    "points_in_zone": 57,
    "first_point": {
        "ts": "2026-10-22T05:31:46+00:00",
        "lat": 37.20757499999999851070242584683001041412353515625,
        "lon": 15.1921616999999997688064468093216419219970703125
    },
    "last_point": {
        "ts": "2026-10-22T09:55:00+00:00",
        "lat": 37.00357999999999947249307297170162200927734375,
        "lon": 15.4291032999999995212192516191862523555755615234375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 22, 2026 05:31 UTC 75.0% ▼
  • Duration: 1h 44m
  • Radius: 825 meters
  • Data Points: 19 AIS positions
  • Centroid: 37.2071, 15.1930
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 825.1000000000000227373675443232059478759765625,
    "duration_minutes": 104.2000000000000028421709430404007434844970703125,
    "points": 19,
    "centroid": {
        "lat": 37.20711894736842140218868735246360301971435546875,
        "lon": 15.193004831578949875847683870233595371246337890625
    },
    "bbox": {
        "min_lat": 37.20340329999999795518306200392544269561767578125,
        "min_lon": 15.1921616999999997688064468093216419219970703125,
        "max_lat": 37.20758169999999864785422687418758869171142578125,
        "max_lon": 15.201055000000000205773176276125013828277587890625
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 22, 2026 05:25 UTC 84/100 ▼
Vessel A: IMO 9301885 (KALYMNOS DAWN) MARSHALL ISLANDS
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 75 meters
  • Average Distance: 89 meters
  • Duration: 1h 51m
  • Period: 2026-10-22T05:25:14+00:00 to 2026-10-22T07:16:13+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 84/100

High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 75m, avg 88m) for 111 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 75m, avg 88m
Duration20/25Duration 111 minutes
Speed Stability14/20both nearly stationary; somewhat variable speeds
Distance Consistency15/15Distance variance ±22m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538012309,
        "imo": 9301885,
        "name": "KALYMNOS DAWN",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 74.7000000000000028421709430404007434844970703125,
    "avg_distance_m": 88.5,
    "distance_consistency_m": 22.300000000000000710542735760100185871124267578125,
    "duration_minutes": 111,
    "overlap_duration_s": 6659,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.330000000000000015543122344752191565930843353271484375,
    "speed_b_std": 0.59999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.330000000000000015543122344752191565930843353271484375,
            "max_sog": 1.3000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-10-22T05:25:14+00:00",
        "end": "2026-10-22T07:16:13+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 84,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 75m, avg 88m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 111 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b122m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 75m, avg 88m) for 111 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 22, 2026 04:10 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 5h 44m
  • Data Points: 65 AIS positions
  • Period: 2026-10-22T04:10:47+00:00 to 2026-10-22T09:55:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 344.19999999999998863131622783839702606201171875,
    "points_in_zone": 65,
    "first_point": {
        "ts": "2026-10-22T04:10:47+00:00",
        "lat": 37.2075616999999994050085661001503467559814453125,
        "lon": 15.192171699999999390229277196340262889862060546875
    },
    "last_point": {
        "ts": "2026-10-22T09:55:00+00:00",
        "lat": 37.00357999999999947249307297170162200927734375,
        "lon": 15.4291032999999995212192516191862523555755615234375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 22, 2026 04:10 UTC 75.0% ▼
  • Duration: 3h 5m
  • Radius: 851 meters
  • Data Points: 27 AIS positions
  • Centroid: 37.2073, 15.1928
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 851.1000000000000227373675443232059478759765625,
    "duration_minutes": 185.19999999999998863131622783839702606201171875,
    "points": 27,
    "centroid": {
        "lat": 37.20725080740741219642586656846106052398681640625,
        "lon": 15.192760807407406531410742900334298610687255859375
    },
    "bbox": {
        "min_lat": 37.20340329999999795518306200392544269561767578125,
        "min_lon": 15.1921599999999994423660609754733741283416748046875,
        "max_lat": 37.20758169999999864785422687418758869171142578125,
        "max_lon": 15.201055000000000205773176276125013828277587890625
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️✗ Augusta, Sicily STS Zone
Oct 22, 2026 03:07 UTC 90/100 ▼
Vessel A: IMO 9301885 (KALYMNOS DAWN) MARSHALL ISLANDS
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 76 meters
  • Average Distance: 81 meters
  • Duration: 1h 36m
  • Period: 2026-10-22T03:07:14+00:00 to 2026-10-22T04:43:12+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 76m, avg 81m) for 96 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 76m, avg 81m
Duration20/25Duration 96 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-22T09:30:02.221408+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538012309,
        "imo": 9301885,
        "name": "KALYMNOS DAWN",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 76.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 81,
    "distance_consistency_m": 3.5,
    "duration_minutes": 96,
    "overlap_duration_s": 5758,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-22T03:07:14+00:00",
        "end": "2026-10-22T04:43:12+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 76m, avg 81m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 96 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 76m, avg 81m) for 96 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 37.2078111000000006924892659299075603485107421875,
            "lon": 15.192496500000000736463334760628640651702880859375
        },
        "time_window": {
            "start_ts": "2026-10-22T03:07:14+00:00",
            "end_ts": "2026-10-22T04:43:12+00:00"
        },
        "searched_at": "2026-10-22T09:30:02.221408+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 22, 2026 03:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 32m
  • Data Points: 70 AIS positions
  • Period: 2026-10-22T03:22:46+00:00 to 2026-10-22T09:55:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 392.19999999999998863131622783839702606201171875,
    "points_in_zone": 70,
    "first_point": {
        "ts": "2026-10-22T03:22:46+00:00",
        "lat": 37.20757499999999851070242584683001041412353515625,
        "lon": 15.192183299999999945839590509422123432159423828125
    },
    "last_point": {
        "ts": "2026-10-22T09:55:00+00:00",
        "lat": 37.00357999999999947249307297170162200927734375,
        "lon": 15.4291032999999995212192516191862523555755615234375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 22, 2026 03:04 UTC 75.0% ▼
  • Duration: 4h 11m
  • Radius: 866 meters
  • Data Points: 35 AIS positions
  • Centroid: 37.2073, 15.1926
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 865.5,
    "duration_minutes": 251.30000000000001136868377216160297393798828125,
    "points": 35,
    "centroid": {
        "lat": 37.20732014571428436511268955655395984649658203125,
        "lon": 15.1926245228571392686944818706251680850982666015625
    },
    "bbox": {
        "min_lat": 37.20340329999999795518306200392544269561767578125,
        "min_lon": 15.19212830000000025165718398056924343109130859375,
        "max_lat": 37.20759000000000327190718962810933589935302734375,
        "max_lon": 15.201055000000000205773176276125013828277587890625
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️✗ Augusta, Sicily STS Zone
Oct 22, 2026 02:16 UTC 95/100 ▼
Vessel A: IMO 9301885 (KALYMNOS DAWN) MARSHALL ISLANDS
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 68 meters
  • Average Distance: 79 meters
  • Duration: 2h 27m
  • Period: 2026-10-22T02:16:13+00:00 to 2026-10-22T04:43:12+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 68m, avg 79m) for 147 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 68m, avg 79m
Duration25/25Duration 147 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-22T08:45:02.108889+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538012309,
        "imo": 9301885,
        "name": "KALYMNOS DAWN",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 67.900000000000005684341886080801486968994140625,
    "avg_distance_m": 79.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 4.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 147,
    "overlap_duration_s": 8819,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-22T02:16:13+00:00",
        "end": "2026-10-22T04:43:12+00:00"
    },
    "points_count": {
        "vessel_a": 19,
        "vessel_b": 19
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 68m, avg 79m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 147 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 68m, avg 79m) for 147 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 37.207802700000002005253918468952178955078125,
            "lon": 15.19249860000000040827217162586748600006103515625
        },
        "time_window": {
            "start_ts": "2026-10-22T02:16:13+00:00",
            "end_ts": "2026-10-22T04:43:12+00:00"
        },
        "searched_at": "2026-10-22T08:45:02.108889+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 22, 2026 02:13 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 28m
  • Data Points: 71 AIS positions
  • Period: 2026-10-22T02:55:46+00:00 to 2026-10-22T09:24:10+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 388.3999999999999772626324556767940521240234375,
    "points_in_zone": 71,
    "first_point": {
        "ts": "2026-10-22T02:55:46+00:00",
        "lat": 37.20757830000000154768713400699198246002197265625,
        "lon": 15.19222500000000053432813729159533977508544921875
    },
    "last_point": {
        "ts": "2026-10-22T09:24:10+00:00",
        "lat": 37.0451683000000002721208147704601287841796875,
        "lon": 15.3990399999999993951860233210027217864990234375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 22, 2026 02:13 UTC 75.0% ▼
  • Duration: 5h 2m
  • Radius: 873 meters
  • Data Points: 42 AIS positions
  • Centroid: 37.2074, 15.1926
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 873.200000000000045474735088646411895751953125,
    "duration_minutes": 302.19999999999998863131622783839702606201171875,
    "points": 42,
    "centroid": {
        "lat": 37.20736035952381115521347965113818645477294921875,
        "lon": 15.1925532547619042134101619012653827667236328125
    },
    "bbox": {
        "min_lat": 37.20340329999999795518306200392544269561767578125,
        "min_lon": 15.19212830000000025165718398056924343109130859375,
        "max_lat": 37.20759000000000327190718962810933589935302734375,
        "max_lon": 15.201055000000000205773176276125013828277587890625
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 22, 2026 01:10 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 35m
  • Data Points: 65 AIS positions
  • Period: 2026-10-22T01:52:46+00:00 to 2026-10-22T08:28:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 395.3999999999999772626324556767940521240234375,
    "points_in_zone": 65,
    "first_point": {
        "ts": "2026-10-22T01:52:46+00:00",
        "lat": 37.20755170000000333629941451363265514373779296875,
        "lon": 15.1921783000000001351281753159128129482269287109375
    },
    "last_point": {
        "ts": "2026-10-22T08:28:11+00:00",
        "lat": 37.1231633000000016409103409387171268463134765625,
        "lon": 15.348498299999999261444827425293624401092529296875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 22, 2026 01:10 UTC 75.0% ▼
  • Duration: 6h 5m
  • Radius: 880 meters
  • Data Points: 50 AIS positions
  • Centroid: 37.2074, 15.1925
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 879.5,
    "duration_minutes": 365.19999999999998863131622783839702606201171875,
    "points": 50,
    "centroid": {
        "lat": 37.20739023799999500852209166623651981353759765625,
        "lon": 15.1924927339999982223162078298628330230712890625
    },
    "bbox": {
        "min_lat": 37.20340329999999795518306200392544269561767578125,
        "min_lon": 15.19212830000000025165718398056924343109130859375,
        "max_lat": 37.20759000000000327190718962810933589935302734375,
        "max_lon": 15.201055000000000205773176276125013828277587890625
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 22, 2026 01:04 UTC 95/100 ▼
Vessel A: IMO 9301885 (KALYMNOS DAWN) MARSHALL ISLANDS
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 68 meters
  • Average Distance: 79 meters
  • Duration: 3h 39m
  • Period: 2026-10-22T01:04:12+00:00 to 2026-10-22T04:43:12+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 68m, avg 79m) for 219 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 68m, avg 79m
Duration25/25Duration 219 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538012309,
        "imo": 9301885,
        "name": "KALYMNOS DAWN",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 67.900000000000005684341886080801486968994140625,
    "avg_distance_m": 78.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 4.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 219,
    "overlap_duration_s": 13140,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-22T01:04:12+00:00",
        "end": "2026-10-22T04:43:12+00:00"
    },
    "points_count": {
        "vessel_a": 27,
        "vessel_b": 27
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 68m, avg 79m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 219 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 68m, avg 79m) for 219 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Augusta, Sicily STS Zone
Oct 22, 2026 00:04 UTC 95/100 ▼
Vessel A: IMO 9329409 (KRITI SAMARIA) Liberia
Vessel B: IMO 9301885 (KALYMNOS DAWN) MARSHALL ISLANDS
  • Minimum Distance: 68 meters
  • Average Distance: 79 meters
  • Duration: 4h 35m
  • Period: 2026-10-22T00:04:47+00:00 to 2026-10-22T04:40:44+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (KRITI SAMARIA and KALYMNOS DAWN) maintained close proximity (min 68m, avg 78m) for 276 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 68m, avg 78m
Duration25/25Duration 276 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-22T06:30:01.373863+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538012309,
        "imo": 9301885,
        "name": "KALYMNOS DAWN",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 67.900000000000005684341886080801486968994140625,
    "avg_distance_m": 78.5,
    "distance_consistency_m": 4.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 275.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 16557,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-22T00:04:47+00:00",
        "end": "2026-10-22T04:40:44+00:00"
    },
    "points_count": {
        "vessel_a": 33,
        "vessel_b": 33
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 68m, avg 78m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 276 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KRITI SAMARIA and KALYMNOS DAWN) maintained close proximity (min 68m, avg 78m) for 276 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 37.20779970000000247409843723289668560028076171875,
            "lon": 15.19249860000000040827217162586748600006103515625
        },
        "time_window": {
            "start_ts": "2026-10-22T00:04:47+00:00",
            "end_ts": "2026-10-22T04:40:44+00:00"
        },
        "searched_at": "2026-10-22T06:30:01.373863+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 22, 2026 00:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 48 AIS positions
  • Period: 2026-10-22T00:31:44+00:00 to 2026-10-22T07:08:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396.30000000000001136868377216160297393798828125,
    "points_in_zone": 48,
    "first_point": {
        "ts": "2026-10-22T00:31:44+00:00",
        "lat": 37.207566700000000992076820693910121917724609375,
        "lon": 15.1921766999999992009406923898495733737945556640625
    },
    "last_point": {
        "ts": "2026-10-22T07:08:00+00:00",
        "lat": 37.20695330000000211612132261507213115692138671875,
        "lon": 15.1927833000000003238483259337954223155975341796875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 22, 2026 00:04 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 84 meters
  • Data Points: 48 AIS positions
  • Centroid: 37.2075, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 84.2000000000000028421709430404007434844970703125,
    "duration_minutes": 396.30000000000001136868377216160297393798828125,
    "points": 48,
    "centroid": {
        "lat": 37.20754702083332432493989472277462482452392578125,
        "lon": 15.1921933687499990384139891830272972583770751953125
    },
    "bbox": {
        "min_lat": 37.20695330000000211612132261507213115692138671875,
        "min_lon": 15.19212830000000025165718398056924343109130859375,
        "max_lat": 37.20759000000000327190718962810933589935302734375,
        "max_lon": 15.1927833000000003238483259337954223155975341796875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 23:22 UTC 95/100 ▼
Vessel A: IMO 9329409 (KRITI SAMARIA) Liberia
Vessel B: IMO 9301885 (KALYMNOS DAWN) MARSHALL ISLANDS
  • Minimum Distance: 68 meters
  • Average Distance: 78 meters
  • Duration: 5h 18m
  • Period: 2026-10-21T23:22:39+00:00 to 2026-10-22T04:40:44+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (KRITI SAMARIA and KALYMNOS DAWN) maintained close proximity (min 68m, avg 78m) for 318 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 68m, avg 78m
Duration25/25Duration 318 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538012309,
        "imo": 9301885,
        "name": "KALYMNOS DAWN",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 67.900000000000005684341886080801486968994140625,
    "avg_distance_m": 78.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 4.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 318.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 19085,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T23:22:39+00:00",
        "end": "2026-10-22T04:40:44+00:00"
    },
    "points_count": {
        "vessel_a": 38,
        "vessel_b": 38
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 68m, avg 78m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 318 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KRITI SAMARIA and KALYMNOS DAWN) maintained close proximity (min 68m, avg 78m) for 318 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 23:07 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 44 AIS positions
  • Period: 2026-10-21T23:52:45+00:00 to 2026-10-22T06:28:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396,
    "points_in_zone": 44,
    "first_point": {
        "ts": "2026-10-21T23:52:45+00:00",
        "lat": 37.20753830000000306199581245891749858856201171875,
        "lon": 15.192190000000000082991391536779701709747314453125
    },
    "last_point": {
        "ts": "2026-10-22T06:28:45+00:00",
        "lat": 37.20755170000000333629941451363265514373779296875,
        "lon": 15.192190000000000082991391536779701709747314453125
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 23:07 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 6 meters
  • Data Points: 44 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 396,
    "points": 44,
    "centroid": {
        "lat": 37.20755822727272033034751075319945812225341796875,
        "lon": 15.192179356818183322275217506103217601776123046875
    },
    "bbox": {
        "min_lat": 37.20751829999999671372279408387839794158935546875,
        "min_lon": 15.19212830000000025165718398056924343109130859375,
        "max_lat": 37.20759000000000327190718962810933589935302734375,
        "max_lon": 15.19222500000000053432813729159533977508544921875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 22:16 UTC 95/100 ▼
Vessel A: IMO 9301885 (KALYMNOS DAWN) MARSHALL ISLANDS
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 73 meters
  • Average Distance: 80 meters
  • Duration: 2h 3m
  • Period: 2026-10-21T22:25:13+00:00 to 2026-10-22T00:28:12+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 73m, avg 80m) for 123 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 73m, avg 80m
Duration25/25Duration 123 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538012309,
        "imo": 9301885,
        "name": "KALYMNOS DAWN",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 73.2999999999999971578290569595992565155029296875,
    "avg_distance_m": 80.400000000000005684341886080801486968994140625,
    "distance_consistency_m": 6.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 123,
    "overlap_duration_s": 7379,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T22:25:13+00:00",
        "end": "2026-10-22T00:28:12+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 73m, avg 80m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 123 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 73m, avg 80m) for 123 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 22:07 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 15m
  • Data Points: 44 AIS positions
  • Period: 2026-10-21T22:40:43+00:00 to 2026-10-22T04:55:50+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 375.1000000000000227373675443232059478759765625,
    "points_in_zone": 44,
    "first_point": {
        "ts": "2026-10-21T22:40:43+00:00",
        "lat": 37.20754500000000319914761348627507686614990234375,
        "lon": 15.192145000000000010231815394945442676544189453125
    },
    "last_point": {
        "ts": "2026-10-22T04:55:50+00:00",
        "lat": 37.20756329999999678648237022571265697479248046875,
        "lon": 15.1921666999999995795178620028309524059295654296875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 22:07 UTC 75.0% ▼
  • Duration: 6h 15m
  • Radius: 6 meters
  • Data Points: 44 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 375.1000000000000227373675443232059478759765625,
    "points": 44,
    "centroid": {
        "lat": 37.20755618181816970491126994602382183074951171875,
        "lon": 15.192177572727274537101038731634616851806640625
    },
    "bbox": {
        "min_lat": 37.20751829999999671372279408387839794158935546875,
        "min_lon": 15.19212830000000025165718398056924343109130859375,
        "max_lat": 37.20759000000000327190718962810933589935302734375,
        "max_lon": 15.19222500000000053432813729159533977508544921875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 21:04 UTC 95/100 ▼
Vessel A: IMO 9301885 (KALYMNOS DAWN) MARSHALL ISLANDS
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 73 meters
  • Average Distance: 80 meters
  • Duration: 3h 15m
  • Period: 2026-10-21T21:13:13+00:00 to 2026-10-22T00:28:12+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 73m, avg 80m) for 195 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 73m, avg 80m
Duration25/25Duration 195 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538012309,
        "imo": 9301885,
        "name": "KALYMNOS DAWN",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 73.2999999999999971578290569595992565155029296875,
    "avg_distance_m": 79.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 5.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 195,
    "overlap_duration_s": 11699,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T21:13:13+00:00",
        "end": "2026-10-22T00:28:12+00:00"
    },
    "points_count": {
        "vessel_a": 18,
        "vessel_b": 18
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 73m, avg 80m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 195 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 73m, avg 80m) for 195 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 21:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 32m
  • Data Points: 43 AIS positions
  • Period: 2026-10-21T21:55:46+00:00 to 2026-10-22T04:28:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 392.8999999999999772626324556767940521240234375,
    "points_in_zone": 43,
    "first_point": {
        "ts": "2026-10-21T21:55:46+00:00",
        "lat": 37.2075482999999991307049640454351902008056640625,
        "lon": 15.192158299999999115925675141625106334686279296875
    },
    "last_point": {
        "ts": "2026-10-22T04:28:40+00:00",
        "lat": 37.20754670000000174923115991987287998199462890625,
        "lon": 15.1921599999999994423660609754733741283416748046875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 21:01 UTC 75.0% ▼
  • Duration: 6h 32m
  • Radius: 6 meters
  • Data Points: 43 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 392.8999999999999772626324556767940521240234375,
    "points": 43,
    "centroid": {
        "lat": 37.20755434883721335381778771989047527313232421875,
        "lon": 15.192175616279069316760796937160193920135498046875
    },
    "bbox": {
        "min_lat": 37.20751829999999671372279408387839794158935546875,
        "min_lon": 15.19212830000000025165718398056924343109130859375,
        "max_lat": 37.20759000000000327190718962810933589935302734375,
        "max_lon": 15.19222500000000053432813729159533977508544921875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 20:09 UTC 85/100 ▼
Vessel A: IMO 9301885 (KALYMNOS DAWN) MARSHALL ISLANDS
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 73 meters
  • Average Distance: 105 meters
  • Duration: 4h 19m
  • Period: 2026-10-21T20:09:04+00:00 to 2026-10-22T00:28:12+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 73m, avg 105m) for 259 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). Moderate distance variation observed during the encounter. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 73m, avg 105m
Duration25/25Duration 259 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency8/15Distance variance ±77m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538012309,
        "imo": 9301885,
        "name": "KALYMNOS DAWN",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 73.2999999999999971578290569595992565155029296875,
    "avg_distance_m": 105.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 77.099999999999994315658113919198513031005859375,
    "duration_minutes": 259.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 15548,
    "speed_a_avg": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_a_std": 0.429999999999999993338661852249060757458209991455078125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1600000000000000033306690738754696212708950042724609375,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T20:09:04+00:00",
        "end": "2026-10-22T00:28:12+00:00"
    },
    "points_count": {
        "vessel_a": 23,
        "vessel_b": 23
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 73m, avg 105m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 259 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b177m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KALYMNOS DAWN and KRITI SAMARIA) maintained close proximity (min 73m, avg 105m) for 259 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). Moderate distance variation observed during the encounter. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 20:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 40 AIS positions
  • Period: 2026-10-21T20:31:45+00:00 to 2026-10-22T03:07:50+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 40,
    "first_point": {
        "ts": "2026-10-21T20:31:45+00:00",
        "lat": 37.2075616999999994050085661001503467559814453125,
        "lon": 15.19218000000000046156856114976108074188232421875
    },
    "last_point": {
        "ts": "2026-10-22T03:07:50+00:00",
        "lat": 37.20756329999999678648237022571265697479248046875,
        "lon": 15.192163300000000702993929735384881496429443359375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 20:01 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 5 meters
  • Data Points: 40 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 40,
    "centroid": {
        "lat": 37.2075526750000022957465262152254581451416015625,
        "lon": 15.1921756249999990728838383802212774753570556640625
    },
    "bbox": {
        "min_lat": 37.2075267000000025063854991458356380462646484375,
        "min_lon": 15.19213500000000038880898500792682170867919921875,
        "max_lat": 37.20758000000000009777068044058978557586669921875,
        "max_lon": 15.19222500000000053432813729159533977508544921875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 19:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 39 AIS positions
  • Period: 2026-10-21T19:52:42+00:00 to 2026-10-22T02:28:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-10-21T19:52:42+00:00",
        "lat": 37.2075650000000024419932742603123188018798828125,
        "lon": 15.1921817000000007880089469836093485355377197265625
    },
    "last_point": {
        "ts": "2026-10-22T02:28:44+00:00",
        "lat": 37.207566700000000992076820693910121917724609375,
        "lon": 15.1922066999999998415660229511559009552001953125
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 19:01 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 4 meters
  • Data Points: 39 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4,
    "duration_minutes": 396,
    "points": 39,
    "centroid": {
        "lat": 37.20755270256409374951545032672584056854248046875,
        "lon": 15.192173930769232725879192003048956394195556640625
    },
    "bbox": {
        "min_lat": 37.2075267000000025063854991458356380462646484375,
        "min_lon": 15.19213500000000038880898500792682170867919921875,
        "max_lat": 37.20758000000000009777068044058978557586669921875,
        "max_lon": 15.19221830000000039717633626423776149749755859375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 18:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 27m
  • Data Points: 38 AIS positions
  • Period: 2026-10-21T18:58:44+00:00 to 2026-10-22T01:25:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 387,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-10-21T18:58:44+00:00",
        "lat": 37.2075583000000023048414732329547405242919921875,
        "lon": 15.1921599999999994423660609754733741283416748046875
    },
    "last_point": {
        "ts": "2026-10-22T01:25:46+00:00",
        "lat": 37.20753169999999698802639613859355449676513671875,
        "lon": 15.192170000000000840145730762742459774017333984375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 18:01 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 6 meters
  • Data Points: 38 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 387,
    "points": 38,
    "centroid": {
        "lat": 37.2075531657894629233851446770131587982177734375,
        "lon": 15.1921725000000034100366974598728120326995849609375
    },
    "bbox": {
        "min_lat": 37.2075267000000025063854991458356380462646484375,
        "min_lon": 15.19213500000000038880898500792682170867919921875,
        "max_lat": 37.20758000000000009777068044058978557586669921875,
        "max_lon": 15.1922367000000004821913535124622285366058349609375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 17:52 UTC 61/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 380 meters
  • Average Distance: 437 meters
  • Duration: 1h 16m
  • Period: 2026-10-21T17:30:21+00:00 to 2026-10-21T18:46:38+00:00
  • Vessel A Avg Speed: 0.3 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 61/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 380m, avg 437m) for 76 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 380m, avg 437m
Duration15/25Duration 76 minutes
Speed Stability14/20both nearly stationary; somewhat variable speeds
Distance Consistency12/15Distance variance ±32m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 380.19999999999998863131622783839702606201171875,
    "avg_distance_m": 437.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 31.89999999999999857891452847979962825775146484375,
    "duration_minutes": 76.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 4577,
    "speed_a_avg": 0.340000000000000024424906541753443889319896697998046875,
    "speed_a_std": 0.7600000000000000088817841970012523233890533447265625,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.340000000000000024424906541753443889319896697998046875,
            "max_sog": 1.6999999999999999555910790149937383830547332763671875
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T17:30:21+00:00",
        "end": "2026-10-21T18:46:38+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 61,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 380m, avg 437m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 76 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b132m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 380m, avg 437m) for 76 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 17:16 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 33m
  • Data Points: 45 AIS positions
  • Period: 2026-10-21T17:40:41+00:00 to 2026-10-22T00:13:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 393,
    "points_in_zone": 45,
    "first_point": {
        "ts": "2026-10-21T17:40:41+00:00",
        "lat": 37.2075549999999992678567650727927684783935546875,
        "lon": 15.19218000000000046156856114976108074188232421875
    },
    "last_point": {
        "ts": "2026-10-22T00:13:42+00:00",
        "lat": 37.20756329999999678648237022571265697479248046875,
        "lon": 15.192163300000000702993929735384881496429443359375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 17:16 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 7 meters
  • Data Points: 45 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 6.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 393,
    "points": 45,
    "centroid": {
        "lat": 37.2075524133333459531058906577527523040771484375,
        "lon": 15.1921706311111091025622954475693404674530029296875
    },
    "bbox": {
        "min_lat": 37.20749670000000008940332918427884578704833984375,
        "min_lon": 15.19213500000000038880898500792682170867919921875,
        "max_lat": 37.20758169999999864785422687418758869171142578125,
        "max_lon": 15.1922367000000004821913535124622285366058349609375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 16:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 15m
  • Data Points: 36 AIS positions
  • Period: 2026-10-21T16:01:45+00:00 to 2026-10-21T22:16:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 375,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-10-21T16:01:45+00:00",
        "lat": 37.20756329999999678648237022571265697479248046875,
        "lon": 15.1921666999999995795178620028309524059295654296875
    },
    "last_point": {
        "ts": "2026-10-21T22:16:45+00:00",
        "lat": 37.20754170000000016216290532611310482025146484375,
        "lon": 15.1921766999999992009406923898495733737945556640625
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 16:01 UTC 75.0% ▼
  • Duration: 6h 15m
  • Radius: 7 meters
  • Data Points: 36 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 6.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 375,
    "points": 36,
    "centroid": {
        "lat": 37.2075516722222374710327130742371082305908203125,
        "lon": 15.1921691250000012729515219689346849918365478515625
    },
    "bbox": {
        "min_lat": 37.20749670000000008940332918427884578704833984375,
        "min_lon": 15.19213500000000038880898500792682170867919921875,
        "max_lat": 37.20758169999999864785422687418758869171142578125,
        "max_lon": 15.1922367000000004821913535124622285366058349609375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 15:16 UTC 74/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 380 meters
  • Average Distance: 441 meters
  • Duration: 3h 22m
  • Period: 2026-10-21T15:24:22+00:00 to 2026-10-21T18:46:38+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 74/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 380m, avg 441m) for 202 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 380m, avg 441m
Duration25/25Duration 202 minutes
Speed Stability14/20both nearly stationary; somewhat variable speeds
Distance Consistency15/15Distance variance ±27m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 380.19999999999998863131622783839702606201171875,
    "avg_distance_m": 441.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 27.10000000000000142108547152020037174224853515625,
    "duration_minutes": 202.30000000000001136868377216160297393798828125,
    "overlap_duration_s": 12136,
    "speed_a_avg": 0.2399999999999999911182158029987476766109466552734375,
    "speed_a_std": 0.64000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.2399999999999999911182158029987476766109466552734375,
            "max_sog": 1.6999999999999999555910790149937383830547332763671875
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T15:24:22+00:00",
        "end": "2026-10-21T18:46:38+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 74,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 380m, avg 441m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 202 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b127m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 380m, avg 441m) for 202 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 15:10 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 18m
  • Data Points: 37 AIS positions
  • Period: 2026-10-21T15:58:37+00:00 to 2026-10-21T22:16:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 378.1000000000000227373675443232059478759765625,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-10-21T15:58:37+00:00",
        "lat": 37.20757669999999706078597228042781352996826171875,
        "lon": 15.1921783000000001351281753159128129482269287109375
    },
    "last_point": {
        "ts": "2026-10-21T22:16:45+00:00",
        "lat": 37.20754170000000016216290532611310482025146484375,
        "lon": 15.1921766999999992009406923898495733737945556640625
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 15:10 UTC 75.0% ▼
  • Duration: 6h 18m
  • Radius: 7 meters
  • Data Points: 37 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 6.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 378.1000000000000227373675443232059478759765625,
    "points": 37,
    "centroid": {
        "lat": 37.2075523486486616775437141768634319305419921875,
        "lon": 15.192169372972973206969982129521667957305908203125
    },
    "bbox": {
        "min_lat": 37.20749670000000008940332918427884578704833984375,
        "min_lon": 15.19213500000000038880898500792682170867919921875,
        "max_lat": 37.20758169999999864785422687418758869171142578125,
        "max_lon": 15.1922367000000004821913535124622285366058349609375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 14:36 UTC 74/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 380 meters
  • Average Distance: 443 meters
  • Duration: 4h 10m
  • Period: 2026-10-21T14:36:27+00:00 to 2026-10-21T18:46:38+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 74/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 380m, avg 443m) for 250 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 380m, avg 443m
Duration25/25Duration 250 minutes
Speed Stability14/20both nearly stationary; somewhat variable speeds
Distance Consistency15/15Distance variance ±25m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 380.19999999999998863131622783839702606201171875,
    "avg_distance_m": 442.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 25.39999999999999857891452847979962825775146484375,
    "duration_minutes": 250.19999999999998863131622783839702606201171875,
    "overlap_duration_s": 15011,
    "speed_a_avg": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_a_std": 0.59999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.2099999999999999922284388276239042170345783233642578125,
            "max_sog": 1.6999999999999999555910790149937383830547332763671875
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T14:36:27+00:00",
        "end": "2026-10-21T18:46:38+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 74,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 380m, avg 443m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 250 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b125m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 380m, avg 443m) for 250 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 14:22 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 35 AIS positions
  • Period: 2026-10-21T14:52:44+00:00 to 2026-10-21T21:28:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396,
    "points_in_zone": 35,
    "first_point": {
        "ts": "2026-10-21T14:52:44+00:00",
        "lat": 37.207566700000000992076820693910121917724609375,
        "lon": 15.1921666999999995795178620028309524059295654296875
    },
    "last_point": {
        "ts": "2026-10-21T21:28:43+00:00",
        "lat": 37.2075616999999994050085661001503467559814453125,
        "lon": 15.19218000000000046156856114976108074188232421875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 14:22 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 7 meters
  • Data Points: 35 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 7,
    "duration_minutes": 396,
    "points": 35,
    "centroid": {
        "lat": 37.20755367142857039652881212532520294189453125,
        "lon": 15.192171334285713868439415819011628627777099609375
    },
    "bbox": {
        "min_lat": 37.20749670000000008940332918427884578704833984375,
        "min_lon": 15.1921367000000007152493708417750895023345947265625,
        "max_lat": 37.20758169999999864785422687418758869171142578125,
        "max_lon": 15.1922367000000004821913535124622285366058349609375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 13:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 30m
  • Data Points: 32 AIS positions
  • Period: 2026-10-21T13:34:40+00:00 to 2026-10-21T20:04:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-10-21T13:34:40+00:00",
        "lat": 37.20758000000000009777068044058978557586669921875,
        "lon": 15.192164999999999253077476168982684612274169921875
    },
    "last_point": {
        "ts": "2026-10-21T20:04:44+00:00",
        "lat": 37.207566700000000992076820693910121917724609375,
        "lon": 15.192164999999999253077476168982684612274169921875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 13:04 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 7 meters
  • Data Points: 32 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 7,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 32,
    "centroid": {
        "lat": 37.20755432499998960338416509330272674560546875,
        "lon": 15.1921699562499981084329192526638507843017578125
    },
    "bbox": {
        "min_lat": 37.20749670000000008940332918427884578704833984375,
        "min_lon": 15.1921367000000007152493708417750895023345947265625,
        "max_lat": 37.20758169999999864785422687418758869171142578125,
        "max_lon": 15.1922367000000004821913535124622285366058349609375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️✗ Augusta, Sicily STS Zone
Oct 21, 2026 12:36 UTC 60/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 453 meters
  • Average Distance: 455 meters
  • Duration: 48 minutes
  • Period: 2026-10-21T12:36:17+00:00 to 2026-10-21T13:24:21+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 452m, avg 455m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 452m, avg 455m
Duration10/25Duration 48 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-21T18:45:01.659092+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 452.5,
    "avg_distance_m": 455.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 4,
    "duration_minutes": 48.10000000000000142108547152020037174224853515625,
    "overlap_duration_s": 2884,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T12:36:17+00:00",
        "end": "2026-10-21T13:24:21+00:00"
    },
    "points_count": {
        "vessel_a": 2,
        "vessel_b": 2
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 452m, avg 455m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 48 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 452m, avg 455m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 37.20960790000000173449734575115144252777099609375,
            "lon": 15.1920024999999991877075444790534675121307373046875
        },
        "time_window": {
            "start_ts": "2026-10-21T12:36:17+00:00",
            "end_ts": "2026-10-21T13:24:21+00:00"
        },
        "searched_at": "2026-10-21T18:45:01.659092+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 12:10 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 27m
  • Data Points: 32 AIS positions
  • Period: 2026-10-21T12:55:38+00:00 to 2026-10-21T19:22:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-10-21T12:55:38+00:00",
        "lat": 37.20756999999999692363417125307023525238037109375,
        "lon": 15.192163300000000702993929735384881496429443359375
    },
    "last_point": {
        "ts": "2026-10-21T19:22:45+00:00",
        "lat": 37.207553300000000717773218639194965362548828125,
        "lon": 15.1921549999999996316546457819640636444091796875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 12:10 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 7 meters
  • Data Points: 32 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 7.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 32,
    "centroid": {
        "lat": 37.207556456249989196294336579740047454833984375,
        "lon": 15.19216839062499957435647957026958465576171875
    },
    "bbox": {
        "min_lat": 37.20749670000000008940332918427884578704833984375,
        "min_lon": 15.1921367000000007152493708417750895023345947265625,
        "max_lat": 37.20759000000000327190718962810933589935302734375,
        "max_lon": 15.1922367000000004821913535124622285366058349609375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 11:12 UTC 75/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 449 meters
  • Average Distance: 454 meters
  • Duration: 2h 12m
  • Period: 2026-10-21T11:12:21+00:00 to 2026-10-21T13:24:21+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 449m, avg 454m) for 132 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 449m, avg 454m
Duration25/25Duration 132 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 448.8999999999999772626324556767940521240234375,
    "avg_distance_m": 453.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 132,
    "overlap_duration_s": 7920,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T11:12:21+00:00",
        "end": "2026-10-21T13:24:21+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 449m, avg 454m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 132 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 449m, avg 454m) for 132 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 11:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 29 AIS positions
  • Period: 2026-10-21T11:43:36+00:00 to 2026-10-21T18:19:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-10-21T11:43:36+00:00",
        "lat": 37.20755669999999781794031150639057159423828125,
        "lon": 15.1921482999999994945028447546064853668212890625
    },
    "last_point": {
        "ts": "2026-10-21T18:19:45+00:00",
        "lat": 37.20753830000000306199581245891749858856201171875,
        "lon": 15.1921817000000007880089469836093485355377197265625
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 11:04 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 5 meters
  • Data Points: 29 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 29,
    "centroid": {
        "lat": 37.2075618413793023364632972516119480133056640625,
        "lon": 15.1921653448275861819638521410524845123291015625
    },
    "bbox": {
        "min_lat": 37.20751829999999671372279408387839794158935546875,
        "min_lon": 15.192145000000000010231815394945442676544189453125,
        "max_lat": 37.20759000000000327190718962810933589935302734375,
        "max_lon": 15.19218670000000059872036217711865901947021484375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 10:34 UTC 65/100 ▼
Vessel A: IMO 9329409 (KRITI SAMARIA) Liberia
Vessel B: IMO 9686883 (STI HACKNEY) Marshall Is
  • Minimum Distance: 446 meters
  • Average Distance: 450 meters
  • Duration: 1h 12m
  • Period: 2026-10-21T10:34:41+00:00 to 2026-10-21T11:46:38+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (KRITI SAMARIA and STI HACKNEY) maintained close proximity (min 446m, avg 450m) for 72 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 446m, avg 450m
Duration15/25Duration 72 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "min_distance_m": 446.30000000000001136868377216160297393798828125,
    "avg_distance_m": 450,
    "distance_consistency_m": 2.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 72,
    "overlap_duration_s": 4317,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T10:34:41+00:00",
        "end": "2026-10-21T11:46:38+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 446m, avg 450m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 72 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (KRITI SAMARIA and STI HACKNEY) maintained close proximity (min 446m, avg 450m) for 72 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 10:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6 hours
  • Data Points: 26 AIS positions
  • Period: 2026-10-21T10:01:40+00:00 to 2026-10-21T16:01:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 360.1000000000000227373675443232059478759765625,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-10-21T10:01:40+00:00",
        "lat": 37.20756829999999837355062481947243213653564453125,
        "lon": 15.19218000000000046156856114976108074188232421875
    },
    "last_point": {
        "ts": "2026-10-21T16:01:45+00:00",
        "lat": 37.20756329999999678648237022571265697479248046875,
        "lon": 15.1921666999999995795178620028309524059295654296875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 10:01 UTC 75.0% ▼
  • Duration: 6 hours
  • Radius: 5 meters
  • Data Points: 26 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5,
    "duration_minutes": 360.1000000000000227373675443232059478759765625,
    "points": 26,
    "centroid": {
        "lat": 37.2075633961538443372774054296314716339111328125,
        "lon": 15.1921650653846125322843363392166793346405029296875
    },
    "bbox": {
        "min_lat": 37.20751829999999671372279408387839794158935546875,
        "min_lon": 15.192145000000000010231815394945442676544189453125,
        "max_lat": 37.20759000000000327190718962810933589935302734375,
        "max_lon": 15.192190000000000082991391536779701709747314453125
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️✗ Augusta, Sicily STS Zone
Oct 21, 2026 09:24 UTC 65/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 449 meters
  • Average Distance: 449 meters
  • Duration: 1h 18m
  • Period: 2026-10-21T09:24:21+00:00 to 2026-10-21T10:42:21+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 448m, avg 449m) for 78 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 448m, avg 449m
Duration15/25Duration 78 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±0m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-21T14:45:25.983792+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 448.5,
    "avg_distance_m": 448.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 0.40000000000000002220446049250313080847263336181640625,
    "duration_minutes": 78,
    "overlap_duration_s": 4680,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T09:24:21+00:00",
        "end": "2026-10-21T10:42:21+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 448m, avg 449m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 78 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b10m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 448m, avg 449m) for 78 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 37.20958999999999861074684304185211658477783203125,
            "lon": 15.192009399999999885721990722231566905975341796875
        },
        "time_window": {
            "start_ts": "2026-10-21T09:24:21+00:00",
            "end_ts": "2026-10-21T10:42:21+00:00"
        },
        "searched_at": "2026-10-21T14:45:25.983792+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 09:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 15m
  • Data Points: 28 AIS positions
  • Period: 2026-10-21T09:46:35+00:00 to 2026-10-21T16:01:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 375.19999999999998863131622783839702606201171875,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-10-21T09:46:35+00:00",
        "lat": 37.20758500000000168483893503434956073760986328125,
        "lon": 15.19218000000000046156856114976108074188232421875
    },
    "last_point": {
        "ts": "2026-10-21T16:01:45+00:00",
        "lat": 37.20756329999999678648237022571265697479248046875,
        "lon": 15.1921666999999995795178620028309524059295654296875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 09:04 UTC 75.0% ▼
  • Duration: 6h 15m
  • Radius: 5 meters
  • Data Points: 28 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 375.19999999999998863131622783839702606201171875,
    "points": 28,
    "centroid": {
        "lat": 37.20756469999999893616404733620584011077880859375,
        "lon": 15.1921663714285699597894563339650630950927734375
    },
    "bbox": {
        "min_lat": 37.20751829999999671372279408387839794158935546875,
        "min_lon": 15.192145000000000010231815394945442676544189453125,
        "max_lat": 37.20759000000000327190718962810933589935302734375,
        "max_lon": 15.192190000000000082991391536779701709747314453125
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 08:16 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 32 AIS positions
  • Period: 2026-10-21T08:40:41+00:00 to 2026-10-21T15:16:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-10-21T08:40:41+00:00",
        "lat": 37.20755669999999781794031150639057159423828125,
        "lon": 15.192183299999999945839590509422123432159423828125
    },
    "last_point": {
        "ts": "2026-10-21T15:16:46+00:00",
        "lat": 37.20751829999999671372279408387839794158935546875,
        "lon": 15.1921683000000005137053449288941919803619384765625
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 08:16 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 5 meters
  • Data Points: 32 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 32,
    "centroid": {
        "lat": 37.20756536249999868459781282581388950347900390625,
        "lon": 15.1921696874999980764187057502567768096923828125
    },
    "bbox": {
        "min_lat": 37.20751829999999671372279408387839794158935546875,
        "min_lon": 15.192145000000000010231815394945442676544189453125,
        "max_lat": 37.20759000000000327190718962810933589935302734375,
        "max_lon": 15.1921949999999998937028067302890121936798095703125
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 07:10 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 33 AIS positions
  • Period: 2026-10-21T07:52:39+00:00 to 2026-10-21T14:28:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-10-21T07:52:39+00:00",
        "lat": 37.20756000000000085492501966655254364013671875,
        "lon": 15.192164999999999253077476168982684612274169921875
    },
    "last_point": {
        "ts": "2026-10-21T14:28:44+00:00",
        "lat": 37.20753500000000002501110429875552654266357421875,
        "lon": 15.1921766999999992009406923898495733737945556640625
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 07:10 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 5 meters
  • Data Points: 33 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 33,
    "centroid": {
        "lat": 37.20756701818180545160430483520030975341796875,
        "lon": 15.1921704545454527846004566526971757411956787109375
    },
    "bbox": {
        "min_lat": 37.20753500000000002501110429875552654266357421875,
        "min_lon": 15.192145000000000010231815394945442676544189453125,
        "max_lat": 37.20759170000000182199073606170713901519775390625,
        "max_lon": 15.19222500000000053432813729159533977508544921875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 07:06 UTC 75/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 446 meters
  • Average Distance: 448 meters
  • Duration: 3h 36m
  • Period: 2026-10-21T07:06:21+00:00 to 2026-10-21T10:42:21+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 446m, avg 448m) for 216 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 446m, avg 448m
Duration25/25Duration 216 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 446,
    "avg_distance_m": 448.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 216,
    "overlap_duration_s": 12960,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T07:06:21+00:00",
        "end": "2026-10-21T10:42:21+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 446m, avg 448m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 216 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 446m, avg 448m) for 216 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Augusta, Sicily STS Zone
Oct 21, 2026 06:10 UTC 65/100 ▼
Vessel A: IMO 9329409 (KRITI SAMARIA) Liberia
Vessel B: IMO 9686883 (STI HACKNEY) Marshall Is
  • Minimum Distance: 446 meters
  • Average Distance: 449 meters
  • Duration: 1h 3m
  • Period: 2026-10-21T06:10:39+00:00 to 2026-10-21T07:13:39+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (KRITI SAMARIA and STI HACKNEY) maintained close proximity (min 446m, avg 449m) for 63 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 446m, avg 449m
Duration15/25Duration 63 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-21T12:45:39.823362+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "min_distance_m": 446,
    "avg_distance_m": 449.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 2.5,
    "duration_minutes": 63,
    "overlap_duration_s": 3780,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T06:10:39+00:00",
        "end": "2026-10-21T07:13:39+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 446m, avg 449m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 63 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (KRITI SAMARIA and STI HACKNEY) maintained close proximity (min 446m, avg 449m) for 63 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 37.20959210000000183526935870759189128875732421875,
            "lon": 15.1920035000000002156639311579056084156036376953125
        },
        "time_window": {
            "start_ts": "2026-10-21T06:10:39+00:00",
            "end_ts": "2026-10-21T07:13:39+00:00"
        },
        "searched_at": "2026-10-21T12:45:39.823362+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 06:10 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 39m
  • Data Points: 37 AIS positions
  • Period: 2026-10-21T06:40:36+00:00 to 2026-10-21T13:19:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 399.1000000000000227373675443232059478759765625,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-10-21T06:40:36+00:00",
        "lat": 37.20755170000000333629941451363265514373779296875,
        "lon": 15.1921666999999995795178620028309524059295654296875
    },
    "last_point": {
        "ts": "2026-10-21T13:19:41+00:00",
        "lat": 37.20758330000000313475538860075175762176513671875,
        "lon": 15.1921616999999997688064468093216419219970703125
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 06:10 UTC 75.0% ▼
  • Duration: 6h 39m
  • Radius: 5 meters
  • Data Points: 37 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 399.1000000000000227373675443232059478759765625,
    "points": 37,
    "centroid": {
        "lat": 37.2075687837837705274068866856396198272705078125,
        "lon": 15.19217054054053761547038448043167591094970703125
    },
    "bbox": {
        "min_lat": 37.20753830000000306199581245891749858856201171875,
        "min_lon": 15.192125000000000767386154620908200740814208984375,
        "max_lat": 37.20759170000000182199073606170713901519775390625,
        "max_lon": 15.19222500000000053432813729159533977508544921875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 05:48 UTC 65/100 ▼
Vessel A: IMO 9329409 (KRITI SAMARIA) Liberia
Vessel B: IMO 9686883 (STI HACKNEY) Marshall Is
  • Minimum Distance: 446 meters
  • Average Distance: 449 meters
  • Duration: 1h 18m
  • Period: 2026-10-21T05:55:42+00:00 to 2026-10-21T07:13:39+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (KRITI SAMARIA and STI HACKNEY) maintained close proximity (min 446m, avg 449m) for 78 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 446m, avg 449m
Duration15/25Duration 78 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "min_distance_m": 446,
    "avg_distance_m": 449,
    "distance_consistency_m": 2.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 78,
    "overlap_duration_s": 4677,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T05:55:42+00:00",
        "end": "2026-10-21T07:13:39+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 446m, avg 449m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 78 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (KRITI SAMARIA and STI HACKNEY) maintained close proximity (min 446m, avg 449m) for 78 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 05:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 24m
  • Data Points: 35 AIS positions
  • Period: 2026-10-21T05:55:42+00:00 to 2026-10-21T12:19:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 384,
    "points_in_zone": 35,
    "first_point": {
        "ts": "2026-10-21T05:55:42+00:00",
        "lat": 37.20757830000000154768713400699198246002197265625,
        "lon": 15.1921683000000005137053449288941919803619384765625
    },
    "last_point": {
        "ts": "2026-10-21T12:19:40+00:00",
        "lat": 37.20758670000000023492248146794736385345458984375,
        "lon": 15.1921549999999996316546457819640636444091796875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 05:04 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 5 meters
  • Data Points: 35 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 384,
    "points": 35,
    "centroid": {
        "lat": 37.207569382857144546505878679454326629638671875,
        "lon": 15.1921717628571375513502061949111521244049072265625
    },
    "bbox": {
        "min_lat": 37.20754500000000319914761348627507686614990234375,
        "min_lon": 15.192125000000000767386154620908200740814208984375,
        "max_lat": 37.20759170000000182199073606170713901519775390625,
        "max_lon": 15.19222500000000053432813729159533977508544921875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 04:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 33m
  • Data Points: 41 AIS positions
  • Period: 2026-10-21T04:40:37+00:00 to 2026-10-21T11:13:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 41,
    "first_point": {
        "ts": "2026-10-21T04:40:37+00:00",
        "lat": 37.207566700000000992076820693910121917724609375,
        "lon": 15.192163300000000702993929735384881496429443359375
    },
    "last_point": {
        "ts": "2026-10-21T11:13:44+00:00",
        "lat": 37.2075549999999992678567650727927684783935546875,
        "lon": 15.1921666999999995795178620028309524059295654296875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 04:04 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 7 meters
  • Data Points: 41 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 6.5,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 41,
    "centroid": {
        "lat": 37.2075679268292702772669144906103610992431640625,
        "lon": 15.192171912195124861000294913537800312042236328125
    },
    "bbox": {
        "min_lat": 37.20754500000000319914761348627507686614990234375,
        "min_lon": 15.192099999999999937472239253111183643341064453125,
        "max_lat": 37.20759170000000182199073606170713901519775390625,
        "max_lon": 15.19222500000000053432813729159533977508544921875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️✗ Augusta, Sicily STS Zone
Oct 21, 2026 04:03 UTC 65/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 448 meters
  • Average Distance: 451 meters
  • Duration: 1h 15m
  • Period: 2026-10-21T04:03:21+00:00 to 2026-10-21T05:18:22+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 448m, avg 451m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 448m, avg 451m
Duration15/25Duration 75 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-21T10:45:02.118501+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 448,
    "avg_distance_m": 450.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 75,
    "overlap_duration_s": 4501,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T04:03:21+00:00",
        "end": "2026-10-21T05:18:22+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 448m, avg 451m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 75 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 448m, avg 451m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 37.20958449999999828605723450891673564910888671875,
            "lon": 15.1919970000000006393747753463685512542724609375
        },
        "time_window": {
            "start_ts": "2026-10-21T04:03:21+00:00",
            "end_ts": "2026-10-21T05:18:22+00:00"
        },
        "searched_at": "2026-10-21T10:45:02.118501+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 03:18 UTC 75/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 446 meters
  • Average Distance: 450 meters
  • Duration: 2 hours
  • Period: 2026-10-21T03:18:17+00:00 to 2026-10-21T05:18:22+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 446m, avg 450m) for 120 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 446m, avg 450m
Duration25/25Duration 120 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 445.6000000000000227373675443232059478759765625,
    "avg_distance_m": 449.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 2.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 120.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 7205,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T03:18:17+00:00",
        "end": "2026-10-21T05:18:22+00:00"
    },
    "points_count": {
        "vessel_a": 17,
        "vessel_b": 17
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 446m, avg 450m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 120 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 446m, avg 450m) for 120 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 03:13 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 27m
  • Data Points: 43 AIS positions
  • Period: 2026-10-21T03:34:39+00:00 to 2026-10-21T10:01:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 387,
    "points_in_zone": 43,
    "first_point": {
        "ts": "2026-10-21T03:34:39+00:00",
        "lat": 37.20756329999999678648237022571265697479248046875,
        "lon": 15.192151700000000147383616422303020954132080078125
    },
    "last_point": {
        "ts": "2026-10-21T10:01:40+00:00",
        "lat": 37.20756829999999837355062481947243213653564453125,
        "lon": 15.19218000000000046156856114976108074188232421875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 03:13 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 6 meters
  • Data Points: 43 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 6.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 387,
    "points": 43,
    "centroid": {
        "lat": 37.20756829534884246868386981077492237091064453125,
        "lon": 15.192170504651162588061197311617434024810791015625
    },
    "bbox": {
        "min_lat": 37.20753830000000306199581245891749858856201171875,
        "min_lon": 15.192099999999999937472239253111183643341064453125,
        "max_lat": 37.20759170000000182199073606170713901519775390625,
        "max_lon": 15.19222500000000053432813729159533977508544921875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 02:31 UTC 75/100 ▼
Vessel A: IMO 9329409 (KRITI SAMARIA) Liberia
Vessel B: IMO 9686883 (STI HACKNEY) Marshall Is
  • Minimum Distance: 446 meters
  • Average Distance: 450 meters
  • Duration: 2h 9m
  • Period: 2026-10-21T02:31:37+00:00 to 2026-10-21T04:40:37+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (KRITI SAMARIA and STI HACKNEY) maintained close proximity (min 446m, avg 450m) for 129 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 446m, avg 450m
Duration25/25Duration 129 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "min_distance_m": 445.6000000000000227373675443232059478759765625,
    "avg_distance_m": 449.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 129,
    "overlap_duration_s": 7740,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T02:31:37+00:00",
        "end": "2026-10-21T04:40:37+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 446m, avg 450m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 129 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (KRITI SAMARIA and STI HACKNEY) maintained close proximity (min 446m, avg 450m) for 129 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 02:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 27m
  • Data Points: 42 AIS positions
  • Period: 2026-10-21T02:43:36+00:00 to 2026-10-21T09:10:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-10-21T02:43:36+00:00",
        "lat": 37.2075616999999994050085661001503467559814453125,
        "lon": 15.1921467000000003366722012287937104701995849609375
    },
    "last_point": {
        "ts": "2026-10-21T09:10:40+00:00",
        "lat": 37.20757830000000154768713400699198246002197265625,
        "lon": 15.192190000000000082991391536779701709747314453125
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 02:04 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 6 meters
  • Data Points: 42 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 6.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 42,
    "centroid": {
        "lat": 37.2075670666666695751700899563729763031005859375,
        "lon": 15.192167540476187781450789771042764186859130859375
    },
    "bbox": {
        "min_lat": 37.20753830000000306199581245891749858856201171875,
        "min_lon": 15.192099999999999937472239253111183643341064453125,
        "max_lat": 37.20759170000000182199073606170713901519775390625,
        "max_lon": 15.19222500000000053432813729159533977508544921875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️✗ Augusta, Sicily STS Zone
Oct 21, 2026 01:12 UTC 65/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 446 meters
  • Average Distance: 448 meters
  • Duration: 1 hours
  • Period: 2026-10-21T01:12:21+00:00 to 2026-10-21T02:12:19+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 446m, avg 448m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 446m, avg 448m
Duration15/25Duration 60 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-21T07:45:01.955486+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 446.19999999999998863131622783839702606201171875,
    "avg_distance_m": 448,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 60,
    "overlap_duration_s": 3598,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T01:12:21+00:00",
        "end": "2026-10-21T02:12:19+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 446m, avg 448m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 60 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 446m, avg 448m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 37.20958999999999861074684304185211658477783203125,
            "lon": 15.1920015999999993283609001082368195056915283203125
        },
        "time_window": {
            "start_ts": "2026-10-21T01:12:21+00:00",
            "end_ts": "2026-10-21T02:12:19+00:00"
        },
        "searched_at": "2026-10-21T07:45:01.955486+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 01:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 43 AIS positions
  • Period: 2026-10-21T01:40:37+00:00 to 2026-10-21T08:16:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 43,
    "first_point": {
        "ts": "2026-10-21T01:40:37+00:00",
        "lat": 37.20758169999999864785422687418758869171142578125,
        "lon": 15.1921932999999995672624208964407444000244140625
    },
    "last_point": {
        "ts": "2026-10-21T08:16:40+00:00",
        "lat": 37.20759170000000182199073606170713901519775390625,
        "lon": 15.192145000000000010231815394945442676544189453125
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 01:04 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 6 meters
  • Data Points: 43 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 43,
    "centroid": {
        "lat": 37.20756756511627827421762049198150634765625,
        "lon": 15.1921622511627898433062000549398362636566162109375
    },
    "bbox": {
        "min_lat": 37.20753830000000306199581245891749858856201171875,
        "min_lon": 15.192099999999999937472239253111183643341064453125,
        "max_lat": 37.20759170000000182199073606170713901519775390625,
        "max_lon": 15.192196700000000220143192564137279987335205078125
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 21, 2026 00:13 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 43 AIS positions
  • Period: 2026-10-21T00:40:35+00:00 to 2026-10-21T07:16:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 43,
    "first_point": {
        "ts": "2026-10-21T00:40:35+00:00",
        "lat": 37.20755170000000333629941451363265514373779296875,
        "lon": 15.1921766999999992009406923898495733737945556640625
    },
    "last_point": {
        "ts": "2026-10-21T07:16:39+00:00",
        "lat": 37.20757499999999851070242584683001041412353515625,
        "lon": 15.1921599999999994423660609754733741283416748046875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 21, 2026 00:13 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 6 meters
  • Data Points: 43 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 43,
    "centroid": {
        "lat": 37.20756504651162543950704275630414485931396484375,
        "lon": 15.192162288372092149302261532284319400787353515625
    },
    "bbox": {
        "min_lat": 37.20753830000000306199581245891749858856201171875,
        "min_lon": 15.192099999999999937472239253111183643341064453125,
        "max_lat": 37.20758670000000023492248146794736385345458984375,
        "max_lon": 15.192196700000000220143192564137279987335205078125
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 21, 2026 00:06 UTC 75/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 446 meters
  • Average Distance: 449 meters
  • Duration: 2h 6m
  • Period: 2026-10-21T00:06:18+00:00 to 2026-10-21T02:12:19+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 446m, avg 449m) for 126 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 446m, avg 449m
Duration25/25Duration 126 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 446.19999999999998863131622783839702606201171875,
    "avg_distance_m": 449.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 2.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 126,
    "overlap_duration_s": 7561,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T00:06:18+00:00",
        "end": "2026-10-21T02:12:19+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 446m, avg 449m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 126 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 446m, avg 449m) for 126 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 20, 2026 23:07 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 27m
  • Data Points: 40 AIS positions
  • Period: 2026-10-20T23:43:36+00:00 to 2026-10-21T06:10:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 40,
    "first_point": {
        "ts": "2026-10-20T23:43:36+00:00",
        "lat": 37.20757329999999996061887941323220729827880859375,
        "lon": 15.1921917000000004094317773706279695034027099609375
    },
    "last_point": {
        "ts": "2026-10-21T06:10:39+00:00",
        "lat": 37.20757669999999706078597228042781352996826171875,
        "lon": 15.19218000000000046156856114976108074188232421875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 20, 2026 23:07 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 6 meters
  • Data Points: 40 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 40,
    "centroid": {
        "lat": 37.20756433999999757133991806767880916595458984375,
        "lon": 15.192162877499992390539773623459041118621826171875
    },
    "bbox": {
        "min_lat": 37.20753830000000306199581245891749858856201171875,
        "min_lon": 15.192099999999999937472239253111183643341064453125,
        "max_lat": 37.20758169999999864785422687418758869171142578125,
        "max_lon": 15.192196700000000220143192564137279987335205078125
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 20, 2026 23:00 UTC 70/100 ▼
Vessel A: IMO 9329409 (KRITI SAMARIA) Liberia
Vessel B: IMO 9686883 (STI HACKNEY) Marshall Is
  • Minimum Distance: 446 meters
  • Average Distance: 449 meters
  • Duration: 1h 45m
  • Period: 2026-10-20T23:31:37+00:00 to 2026-10-21T01:16:36+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (KRITI SAMARIA and STI HACKNEY) maintained close proximity (min 446m, avg 449m) for 105 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 446m, avg 449m
Duration20/25Duration 105 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "min_distance_m": 446.19999999999998863131622783839702606201171875,
    "avg_distance_m": 448.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 1.6999999999999999555910790149937383830547332763671875,
    "duration_minutes": 105,
    "overlap_duration_s": 6299,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-20T23:31:37+00:00",
        "end": "2026-10-21T01:16:36+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 446m, avg 449m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 105 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (KRITI SAMARIA and STI HACKNEY) maintained close proximity (min 446m, avg 449m) for 105 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 20, 2026 22:54 UTC 75/100 ▼
Vessel A: IMO 9329409 (KRITI SAMARIA) Liberia
Vessel B: IMO 9686883 (STI HACKNEY) Marshall Is
  • Minimum Distance: 446 meters
  • Average Distance: 449 meters
  • Duration: 2h 18m
  • Period: 2026-10-20T22:58:37+00:00 to 2026-10-21T01:16:36+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (KRITI SAMARIA and STI HACKNEY) maintained close proximity (min 446m, avg 449m) for 138 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 446m, avg 449m
Duration25/25Duration 138 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "min_distance_m": 446.19999999999998863131622783839702606201171875,
    "avg_distance_m": 449.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 138,
    "overlap_duration_s": 8279,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-20T22:58:37+00:00",
        "end": "2026-10-21T01:16:36+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 446m, avg 449m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 138 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (KRITI SAMARIA and STI HACKNEY) maintained close proximity (min 446m, avg 449m) for 138 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 20, 2026 22:07 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 35m
  • Data Points: 43 AIS positions
  • Period: 2026-10-20T22:43:42+00:00 to 2026-10-21T05:19:34+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 395.8999999999999772626324556767940521240234375,
    "points_in_zone": 43,
    "first_point": {
        "ts": "2026-10-20T22:43:42+00:00",
        "lat": 37.20752829999999988785930327139794826507568359375,
        "lon": 15.192273300000000091358742793090641498565673828125
    },
    "last_point": {
        "ts": "2026-10-21T05:19:34+00:00",
        "lat": 37.207566700000000992076820693910121917724609375,
        "lon": 15.192158299999999115925675141625106334686279296875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 20, 2026 22:07 UTC 75.0% ▼
  • Duration: 6h 35m
  • Radius: 10 meters
  • Data Points: 43 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 10.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 395.8999999999999772626324556767940521240234375,
    "points": 43,
    "centroid": {
        "lat": 37.207562060465107833806541748344898223876953125,
        "lon": 15.19216341395348734977233107201755046844482421875
    },
    "bbox": {
        "min_lat": 37.20752829999999988785930327139794826507568359375,
        "min_lon": 15.192099999999999937472239253111183643341064453125,
        "max_lat": 37.20758169999999864785422687418758869171142578125,
        "max_lon": 15.192273300000000091358742793090641498565673828125
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 20, 2026 21:07 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 40 AIS positions
  • Period: 2026-10-20T21:43:39+00:00 to 2026-10-21T04:19:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 40,
    "first_point": {
        "ts": "2026-10-20T21:43:39+00:00",
        "lat": 37.20756999999999692363417125307023525238037109375,
        "lon": 15.1921766999999992009406923898495733737945556640625
    },
    "last_point": {
        "ts": "2026-10-21T04:19:42+00:00",
        "lat": 37.20753830000000306199581245891749858856201171875,
        "lon": 15.192170000000000840145730762742459774017333984375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 20, 2026 21:07 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 10 meters
  • Data Points: 40 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 10.199999999999999289457264239899814128875732421875,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 40,
    "centroid": {
        "lat": 37.207560502500001575754140503704547882080078125,
        "lon": 15.19216583749999927022145129740238189697265625
    },
    "bbox": {
        "min_lat": 37.20752829999999988785930327139794826507568359375,
        "min_lon": 15.19213500000000038880898500792682170867919921875,
        "max_lat": 37.20758169999999864785422687418758869171142578125,
        "max_lon": 15.192273300000000091358742793090641498565673828125
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️✗ Augusta, Sicily STS Zone
Oct 20, 2026 21:06 UTC 65/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 450 meters
  • Average Distance: 452 meters
  • Duration: 1h 3m
  • Period: 2026-10-20T21:06:22+00:00 to 2026-10-20T22:09:23+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 450m, avg 452m) for 63 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 450m, avg 452m
Duration15/25Duration 63 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-21T03:45:01.330011+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 449.69999999999998863131622783839702606201171875,
    "avg_distance_m": 452,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 63,
    "overlap_duration_s": 3781,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-20T21:06:22+00:00",
        "end": "2026-10-20T22:09:23+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 450m, avg 452m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 63 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 450m, avg 452m) for 63 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 37.209583600000001979424268938601016998291015625,
            "lon": 15.1919924999999995662847140920348465442657470703125
        },
        "time_window": {
            "start_ts": "2026-10-20T21:06:22+00:00",
            "end_ts": "2026-10-20T22:09:23+00:00"
        },
        "searched_at": "2026-10-21T03:45:01.330011+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Oct 20, 2026 20:25 UTC 70/100 ▼
Vessel A: IMO 9686883 (STI HACKNEY) Marshall Is
Vessel B: IMO 9329409 (KRITI SAMARIA) Liberia
  • Minimum Distance: 449 meters
  • Average Distance: 451 meters
  • Duration: 1h 30m
  • Period: 2026-10-20T20:39:13+00:00 to 2026-10-20T22:09:23+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 449m, avg 451m) for 90 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 449m, avg 451m
Duration20/25Duration 90 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538005401,
        "imo": 9686883,
        "name": "STI HACKNEY",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636017739,
        "imo": 9329409,
        "name": "KRITI SAMARIA",
        "flag": "Liberia"
    },
    "min_distance_m": 448.80000000000001136868377216160297393798828125,
    "avg_distance_m": 451.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 90.2000000000000028421709430404007434844970703125,
    "overlap_duration_s": 5410,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-20T20:39:13+00:00",
        "end": "2026-10-20T22:09:23+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 449m, avg 451m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 90 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STI HACKNEY and KRITI SAMARIA) maintained close proximity (min 449m, avg 451m) for 90 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Oct 20, 2026 20:03 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 30m
  • Data Points: 38 AIS positions
  • Period: 2026-10-20T20:55:35+00:00 to 2026-10-21T03:25:38+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-10-20T20:55:35+00:00",
        "lat": 37.2075616999999994050085661001503467559814453125,
        "lon": 15.1921683000000005137053449288941919803619384765625
    },
    "last_point": {
        "ts": "2026-10-21T03:25:38+00:00",
        "lat": 37.20756000000000085492501966655254364013671875,
        "lon": 15.192151700000000147383616422303020954132080078125
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Oct 20, 2026 20:03 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 10 meters
  • Data Points: 38 AIS positions
  • Centroid: 37.2076, 15.1922
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 10.199999999999999289457264239899814128875732421875,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 38,
    "centroid": {
        "lat": 37.20755952368421048959135077893733978271484375,
        "lon": 15.1921657052631555728794410242699086666107177734375
    },
    "bbox": {
        "min_lat": 37.20752829999999988785930327139794826507568359375,
        "min_lon": 15.19213500000000038880898500792682170867919921875,
        "max_lat": 37.20758169999999864785422687418758869171142578125,
        "max_lon": 15.192273300000000091358742793090641498565673828125
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Oct 22 09:55 37.0036 15.4291 5.6 kn 150.6° Augusta, Sicily STS Zone
Oct 22 09:42 37.0203 15.4169 5.6 kn 149.4° Augusta, Sicily STS Zone
Oct 22 09:34 37.0313 15.4089 5.5 kn 151.7° Augusta, Sicily STS Zone
Oct 22 09:31 37.0356 15.4060 5.5 kn 150.5° Augusta, Sicily STS Zone
Oct 22 09:24 37.0452 15.3990 5.5 kn 150.9° Augusta, Sicily STS Zone
Oct 22 09:21 37.0492 15.3963 5.5 kn 152.9° Augusta, Sicily STS Zone
Oct 22 09:18 37.0534 15.3937 5.5 kn 154.2° Augusta, Sicily STS Zone
Oct 22 09:10 37.0646 15.3860 5.5 kn 150.2° Augusta, Sicily STS Zone
Oct 22 09:05 37.0715 15.3812 5.6 kn 150.8° Augusta, Sicily STS Zone
Oct 22 09:03 37.0743 15.3793 5.6 kn 152.1° Augusta, Sicily STS Zone
Oct 22 08:51 37.0899 15.3692 5.6 kn 150.9° Augusta, Sicily STS Zone
Oct 22 08:48 37.0940 15.3663 5.6 kn 150.8° Augusta, Sicily STS Zone
Oct 22 08:43 37.1012 15.3618 5.6 kn 155.7° Augusta, Sicily STS Zone
Oct 22 08:39 37.1070 15.3585 5.6 kn 154.4° Augusta, Sicily STS Zone
Oct 22 08:36 37.1114 15.3557 5.6 kn 152.5° Augusta, Sicily STS Zone
Oct 22 08:30 37.1200 15.3501 5.6 kn 155.6° Augusta, Sicily STS Zone
Oct 22 08:28 37.1232 15.3485 5.6 kn 158.1° Augusta, Sicily STS Zone
Oct 22 08:25 37.1277 15.3461 5.6 kn 155.7° Augusta, Sicily STS Zone
Oct 22 08:20 37.1337 15.3420 5.6 kn 144.5° Augusta, Sicily STS Zone
Oct 22 08:18 37.1363 15.3398 5.6 kn 146.4° Augusta, Sicily STS Zone

Showing 20 of 100 recent positions.

Data Source

Vessel observed through FleetLeaks' AIS monitoring system in zones of interest. Identity and position data derived from AIS broadcasts and public maritime databases.

Disclaimer: AIS data can be spoofed or falsified. Vessel identities should be independently verified before making compliance decisions.