FRANK LIGHT

IMO 9724726

Vessel information

Vessel Name FRANK LIGHT
IMO Number 9724726
MMSI 538011846
Vessel Type Tanker
Flag 🇲🇭 MARSHALL ISLANDS
Call Sign V7A3558
Length 183 m
Beam 32 m

Detected Events (100)

Sts discovered_020
Jun 18, 2026 09:01 UTC 90/100 ▼
Vessel A: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
Vessel B: IMO 9311048 (FORTUNA ONE) LIBERIA
  • Minimum Distance: 32 meters
  • Average Distance: 40 meters
  • Duration: 1h 32m
  • Period: 2026-06-18T09:04:16+00:00 to 2026-06-18T10:37:06+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_020

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 32m, avg 40m) for 93 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 Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 32m, avg 40m
Duration20/25Duration 93 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636026167,
        "imo": 9311048,
        "name": "FORTUNA ONE",
        "flag": "LIBERIA"
    },
    "min_distance_m": 32.10000000000000142108547152020037174224853515625,
    "avg_distance_m": 40.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 6.5,
    "duration_minutes": 92.7999999999999971578290569595992565155029296875,
    "overlap_duration_s": 5570,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-18T09:04:16+00:00",
        "end": "2026-06-18T10:37:06+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 32m, avg 40m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 93 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: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 32m, avg 40m) for 93 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 Eastern Mediterranean Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 18, 2026 09:01 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 1h 36m
  • Data Points: 10 AIS positions
  • Period: 2026-06-18T09:01:05+00:00 to 2026-06-18T10:37:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 96,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-06-18T09:01:05+00:00",
        "lat": 31.506783299999998604334905394352972507476806640625,
        "lon": 32.27846000000000259433363680727779865264892578125
    },
    "last_point": {
        "ts": "2026-06-18T10:37:06+00:00",
        "lat": 31.506859999999999644160197931341826915740966796875,
        "lon": 32.27857000000000198269844986498355865478515625
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 18, 2026 09:01 UTC 75.0% ▼
  • Duration: 1h 36m
  • Radius: 13 meters
  • Data Points: 10 AIS positions
  • Centroid: 31.5068, 32.2785
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 12.699999999999999289457264239899814128875732421875,
    "duration_minutes": 96,
    "points": 10,
    "centroid": {
        "lat": 31.506788999999997713530319742858409881591796875,
        "lon": 32.27846466000000447138518211431801319122314453125
    },
    "bbox": {
        "min_lat": 31.50672670000000152867869473993778228759765625,
        "min_lon": 32.27839000000000169166014529764652252197265625,
        "max_lat": 31.506859999999999644160197931341826915740966796875,
        "max_lon": 32.27857000000000198269844986498355865478515625
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Sts discovered_020
Jun 18, 2026 07:43 UTC 95/100 ▼
Vessel A: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
Vessel B: IMO 9311048 (FORTUNA ONE) LIBERIA
  • Minimum Distance: 31 meters
  • Average Distance: 39 meters
  • Duration: 2h 54m
  • Period: 2026-06-18T07:43:03+00:00 to 2026-06-18T10:37:06+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_020

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 30m, avg 39m) for 174 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 Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 30m, avg 39m
Duration25/25Duration 174 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±7m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636026167,
        "imo": 9311048,
        "name": "FORTUNA ONE",
        "flag": "LIBERIA"
    },
    "min_distance_m": 30.5,
    "avg_distance_m": 38.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 6.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 174.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 10443,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-06-18T07:43:03+00:00",
        "end": "2026-06-18T10:37:06+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 30m, avg 39m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 174 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 30m, avg 39m) for 174 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 Eastern Mediterranean Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 18, 2026 07:25 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 3h 12m
  • Data Points: 13 AIS positions
  • Period: 2026-06-18T07:25:07+00:00 to 2026-06-18T10:37:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 192,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-06-18T07:25:07+00:00",
        "lat": 31.506969999999999032525010989047586917877197265625,
        "lon": 32.2786100000000004683897714130580425262451171875
    },
    "last_point": {
        "ts": "2026-06-18T10:37:06+00:00",
        "lat": 31.506859999999999644160197931341826915740966796875,
        "lon": 32.27857000000000198269844986498355865478515625
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 18, 2026 07:25 UTC 75.0% ▼
  • Duration: 3h 12m
  • Radius: 28 meters
  • Data Points: 13 AIS positions
  • Centroid: 31.5068, 32.2785
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 27.699999999999999289457264239899814128875732421875,
    "duration_minutes": 192,
    "points": 13,
    "centroid": {
        "lat": 31.50683615384615876564566860906779766082763671875,
        "lon": 32.2785061461538447247221483848989009857177734375
    },
    "bbox": {
        "min_lat": 31.50672670000000152867869473993778228759765625,
        "min_lon": 32.27839000000000169166014529764652252197265625,
        "max_lat": 31.5070367000000004509274731390178203582763671875,
        "max_lon": 32.27868000000000137106326292268931865692138671875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 18, 2026 06:31 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 4h 5m
  • Data Points: 16 AIS positions
  • Period: 2026-06-18T06:31:09+00:00 to 2026-06-18T10:37:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 245.900000000000005684341886080801486968994140625,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-06-18T06:31:09+00:00",
        "lat": 31.507000000000001449507180950604379177093505859375,
        "lon": 32.27866329999999805977495270781219005584716796875
    },
    "last_point": {
        "ts": "2026-06-18T10:37:06+00:00",
        "lat": 31.506859999999999644160197931341826915740966796875,
        "lon": 32.27857000000000198269844986498355865478515625
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 18, 2026 06:31 UTC 75.0% ▼
  • Duration: 4h 5m
  • Radius: 23 meters
  • Data Points: 16 AIS positions
  • Centroid: 31.5069, 32.2785
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 23.39999999999999857891452847979962825775146484375,
    "duration_minutes": 245.900000000000005684341886080801486968994140625,
    "points": 16,
    "centroid": {
        "lat": 31.50686770624999866186044528149068355560302734375,
        "lon": 32.27853165625000286809154204092919826507568359375
    },
    "bbox": {
        "min_lat": 31.50672670000000152867869473993778228759765625,
        "min_lon": 32.27839000000000169166014529764652252197265625,
        "max_lat": 31.5070367000000004509274731390178203582763671875,
        "max_lon": 32.27868000000000137106326292268931865692138671875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 18, 2026 05:46 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 4h 50m
  • Data Points: 18 AIS positions
  • Period: 2026-06-18T05:46:11+00:00 to 2026-06-18T10:37:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 290.8999999999999772626324556767940521240234375,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-06-18T05:46:11+00:00",
        "lat": 31.507156699999999460715116583742201328277587890625,
        "lon": 32.27872669999999999390638549812138080596923828125
    },
    "last_point": {
        "ts": "2026-06-18T10:37:06+00:00",
        "lat": 31.506859999999999644160197931341826915740966796875,
        "lon": 32.27857000000000198269844986498355865478515625
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 18, 2026 05:46 UTC 75.0% ▼
  • Duration: 4h 50m
  • Radius: 33 meters
  • Data Points: 18 AIS positions
  • Centroid: 31.5069, 32.2786
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 33.10000000000000142108547152020037174224853515625,
    "duration_minutes": 290.8999999999999772626324556767940521240234375,
    "points": 18,
    "centroid": {
        "lat": 31.5068996277777699788202880881726741790771484375,
        "lon": 32.27855388333333763739574351347982883453369140625
    },
    "bbox": {
        "min_lat": 31.50672670000000152867869473993778228759765625,
        "min_lon": 32.27839000000000169166014529764652252197265625,
        "max_lat": 31.507156699999999460715116583742201328277587890625,
        "max_lon": 32.27873670000000316804289468564093112945556640625
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 18, 2026 04:19 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 18m
  • Data Points: 19 AIS positions
  • Period: 2026-06-18T04:19:08+00:00 to 2026-06-18T10:37:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 378,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-06-18T04:19:08+00:00",
        "lat": 31.507000000000001449507180950604379177093505859375,
        "lon": 32.27862999999999971123543218709528446197509765625
    },
    "last_point": {
        "ts": "2026-06-18T10:37:06+00:00",
        "lat": 31.506859999999999644160197931341826915740966796875,
        "lon": 32.27857000000000198269844986498355865478515625
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 18, 2026 04:19 UTC 75.0% ▼
  • Duration: 6h 18m
  • Radius: 32 meters
  • Data Points: 19 AIS positions
  • Centroid: 31.5069, 32.2786
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 32.39999999999999857891452847979962825775146484375,
    "duration_minutes": 378,
    "points": 19,
    "centroid": {
        "lat": 31.506904910526312590945963165722787380218505859375,
        "lon": 32.27855788947368864683085121214389801025390625
    },
    "bbox": {
        "min_lat": 31.50672670000000152867869473993778228759765625,
        "min_lon": 32.27839000000000169166014529764652252197265625,
        "max_lat": 31.507156699999999460715116583742201328277587890625,
        "max_lon": 32.27873670000000316804289468564093112945556640625
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 18, 2026 02:33 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 33m
  • Data Points: 15 AIS positions
  • Period: 2026-06-18T02:33:58+00:00 to 2026-06-18T09:07:02+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-06-18T02:33:58+00:00",
        "lat": 31.50674670000000077152435551397502422332763671875,
        "lon": 32.27835999999999927467797533608973026275634765625
    },
    "last_point": {
        "ts": "2026-06-18T09:07:02+00:00",
        "lat": 31.506810000000001537046045996248722076416015625,
        "lon": 32.27846000000000259433363680727779865264892578125
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 18, 2026 02:33 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 30 meters
  • Data Points: 15 AIS positions
  • Centroid: 31.5069, 32.2786
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 29.89999999999999857891452847979962825775146484375,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 15,
    "centroid": {
        "lat": 31.506931113333333627224419615231454372406005859375,
        "lon": 32.2785579933333366398073849268257617950439453125
    },
    "bbox": {
        "min_lat": 31.50674670000000077152435551397502422332763671875,
        "min_lon": 32.2783332999999998946805135346949100494384765625,
        "max_lat": 31.507156699999999460715116583742201328277587890625,
        "max_lon": 32.27873670000000316804289468564093112945556640625
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Sts🛰️✗ discovered_020
Jun 18, 2026 00:06 UTC 95/100 ▼
Vessel A: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
Vessel B: IMO 9311048 (FORTUNA ONE) LIBERIA
  • Minimum Distance: 28 meters
  • Average Distance: 36 meters
  • Duration: 2h 36m
  • Period: 2026-06-18T00:06:35+00:00 to 2026-06-18T02:42:46+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_020

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 28m, avg 36m) for 156 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 Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 28m, avg 36m
Duration25/25Duration 156 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-06-18T03:00:02.112768+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636026167,
        "imo": 9311048,
        "name": "FORTUNA ONE",
        "flag": "LIBERIA"
    },
    "min_distance_m": 28.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 36,
    "distance_consistency_m": 4.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 156.19999999999998863131622783839702606201171875,
    "overlap_duration_s": 9371,
    "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": "2026-06-18T00:06:35+00:00",
        "end": "2026-06-18T02:42:46+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 28m, avg 36m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 156 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: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 28m, avg 36m) for 156 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 Eastern Mediterranean Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.506558699999999362262315116822719573974609375,
            "lon": 32.27814670000000063510015024803578853607177734375
        },
        "time_window": {
            "start_ts": "2026-06-18T00:06:35+00:00",
            "end_ts": "2026-06-18T02:42:46+00:00"
        },
        "searched_at": "2026-06-18T03:00:02.112768+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 18, 2026 00:06 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 30m
  • Data Points: 14 AIS positions
  • Period: 2026-06-18T00:12:35+00:00 to 2026-06-18T06:43:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 390.6000000000000227373675443232059478759765625,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-06-18T00:12:35+00:00",
        "lat": 31.504760000000000985664883046410977840423583984375,
        "lon": 32.27446330000000074278432293795049190521240234375
    },
    "last_point": {
        "ts": "2026-06-18T06:43:11+00:00",
        "lat": 31.507013300000000555201040697284042835235595703125,
        "lon": 32.2786133000000035053744795732200145721435546875
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 18, 2026 00:06 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 405 meters
  • Data Points: 14 AIS positions
  • Centroid: 31.5067, 32.2781
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 405.3999999999999772626324556767940521240234375,
    "duration_minutes": 390.6000000000000227373675443232059478759765625,
    "points": 14,
    "centroid": {
        "lat": 31.506667150000001953458195202983915805816650390625,
        "lon": 32.27810380714286253578393370844423770904541015625
    },
    "bbox": {
        "min_lat": 31.504760000000000985664883046410977840423583984375,
        "min_lon": 32.27446330000000074278432293795049190521240234375,
        "max_lat": 31.507156699999999460715116583742201328277587890625,
        "max_lon": 32.27873670000000316804289468564093112945556640625
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 23:03 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 33m
  • Data Points: 12 AIS positions
  • Period: 2026-06-17T23:12:44+00:00 to 2026-06-18T05:46:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 393.3999999999999772626324556767940521240234375,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-06-17T23:12:44+00:00",
        "lat": 31.506436699999998296561898314394056797027587890625,
        "lon": 32.27778330000000295285644824616611003875732421875
    },
    "last_point": {
        "ts": "2026-06-18T05:46:11+00:00",
        "lat": 31.507156699999999460715116583742201328277587890625,
        "lon": 32.27872669999999999390638549812138080596923828125
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 17, 2026 23:03 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 377 meters
  • Data Points: 12 AIS positions
  • Centroid: 31.5065, 32.2779
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 377.3999999999999772626324556767940521240234375,
    "duration_minutes": 393.3999999999999772626324556767940521240234375,
    "points": 12,
    "centroid": {
        "lat": 31.50650640833333682166994549334049224853515625,
        "lon": 32.2778736083333370743275736458599567413330078125
    },
    "bbox": {
        "min_lat": 31.504760000000000985664883046410977840423583984375,
        "min_lon": 32.27446330000000074278432293795049190521240234375,
        "max_lat": 31.507156699999999460715116583742201328277587890625,
        "max_lon": 32.27872669999999999390638549812138080596923828125
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 22:21 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 5h 57m
  • Data Points: 16 AIS positions
  • Period: 2026-06-17T22:21:29+00:00 to 2026-06-18T04:19:08+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 357.6000000000000227373675443232059478759765625,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-06-17T22:21:29+00:00",
        "lat": 31.50633669999999852961991564370691776275634765625,
        "lon": 32.2775333000000017591446521691977977752685546875
    },
    "last_point": {
        "ts": "2026-06-18T04:19:08+00:00",
        "lat": 31.507000000000001449507180950604379177093505859375,
        "lon": 32.27862999999999971123543218709528446197509765625
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 17, 2026 22:21 UTC 75.0% ▼
  • Duration: 5h 57m
  • Radius: 363 meters
  • Data Points: 16 AIS positions
  • Centroid: 31.5064, 32.2778
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 362.80000000000001136868377216160297393798828125,
    "duration_minutes": 357.6000000000000227373675443232059478759765625,
    "points": 16,
    "centroid": {
        "lat": 31.50641855625000431473381468094885349273681640625,
        "lon": 32.277754993749994127938407473266124725341796875
    },
    "bbox": {
        "min_lat": 31.504760000000000985664883046410977840423583984375,
        "min_lon": 32.27446330000000074278432293795049190521240234375,
        "max_lat": 31.507000000000001449507180950604379177093505859375,
        "max_lon": 32.27862999999999971123543218709528446197509765625
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Sts🛰️✗ discovered_020
Jun 17, 2026 21:15 UTC 75/100 ▼
Vessel A: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
Vessel B: IMO 9311048 (FORTUNA ONE) LIBERIA
  • Minimum Distance: 30 meters
  • Average Distance: 32 meters
  • Duration: 30 minutes
  • Period: 2026-06-17T21:15:32+00:00 to 2026-06-17T21:45:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_020

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 30m, avg 32m) for 30 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 Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 30m, avg 32m
Duration5/25Duration 30 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-06-18T04:00:09.250189+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636026167,
        "imo": 9311048,
        "name": "FORTUNA ONE",
        "flag": "LIBERIA"
    },
    "min_distance_m": 29.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 32.10000000000000142108547152020037174224853515625,
    "distance_consistency_m": 1.5,
    "duration_minutes": 30,
    "overlap_duration_s": 1802,
    "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": "2026-06-17T21:15:32+00:00",
        "end": "2026-06-17T21:45:34+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 30m, avg 32m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 30 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: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 30m, avg 32m) for 30 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 Eastern Mediterranean Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.506322000000000826958057587035000324249267578125,
            "lon": 32.277749999999997498889570124447345733642578125
        },
        "time_window": {
            "start_ts": "2026-06-17T21:15:32+00:00",
            "end_ts": "2026-06-17T21:45:34+00:00"
        },
        "searched_at": "2026-06-18T04:00:09.250189+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 21:15 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 36m
  • Data Points: 19 AIS positions
  • Period: 2026-06-17T21:42:35+00:00 to 2026-06-18T04:19:08+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 396.6000000000000227373675443232059478759765625,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-06-17T21:42:35+00:00",
        "lat": 31.506299999999999528199623455293476581573486328125,
        "lon": 32.27758000000000038198777474462985992431640625
    },
    "last_point": {
        "ts": "2026-06-18T04:19:08+00:00",
        "lat": 31.507000000000001449507180950604379177093505859375,
        "lon": 32.27862999999999971123543218709528446197509765625
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 17, 2026 21:15 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 359 meters
  • Data Points: 19 AIS positions
  • Centroid: 31.5064, 32.2777
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 359.19999999999998863131622783839702606201171875,
    "duration_minutes": 396.6000000000000227373675443232059478759765625,
    "points": 19,
    "centroid": {
        "lat": 31.5063975578947292888187803328037261962890625,
        "lon": 32.27772525789473689883379847742617130279541015625
    },
    "bbox": {
        "min_lat": 31.504760000000000985664883046410977840423583984375,
        "min_lon": 32.27446330000000074278432293795049190521240234375,
        "max_lat": 31.507000000000001449507180950604379177093505859375,
        "max_lon": 32.27862999999999971123543218709528446197509765625
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Sts🛰️✗ discovered_020
Jun 17, 2026 20:24 UTC 85/100 ▼
Vessel A: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
Vessel B: IMO 9311048 (FORTUNA ONE) LIBERIA
  • Minimum Distance: 30 meters
  • Average Distance: 33 meters
  • Duration: 1h 21m
  • Period: 2026-06-17T20:24:37+00:00 to 2026-06-17T21:45:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_020

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 30m, avg 32m) for 81 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 Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 30m, avg 32m
Duration15/25Duration 81 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-06-18T04:00:01.854831+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636026167,
        "imo": 9311048,
        "name": "FORTUNA ONE",
        "flag": "LIBERIA"
    },
    "min_distance_m": 29.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 32.5,
    "distance_consistency_m": 2.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 81,
    "overlap_duration_s": 4857,
    "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": "2026-06-17T20:24:37+00:00",
        "end": "2026-06-17T21:45:34+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 30m, avg 32m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 81 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: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 30m, avg 32m) for 81 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 Eastern Mediterranean Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.506335199999998764042175025679171085357666015625,
            "lon": 32.27781569999999788933564559556543827056884765625
        },
        "time_window": {
            "start_ts": "2026-06-17T20:24:37+00:00",
            "end_ts": "2026-06-17T21:45:34+00:00"
        },
        "searched_at": "2026-06-18T04:00:01.854831+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 20:00 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 27m
  • Data Points: 27 AIS positions
  • Period: 2026-06-17T20:15:38+00:00 to 2026-06-18T02:42:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-06-17T20:15:38+00:00",
        "lat": 31.5063032999999990124706528149545192718505859375,
        "lon": 32.27767999999999659621607861481606960296630859375
    },
    "last_point": {
        "ts": "2026-06-18T02:42:46+00:00",
        "lat": 31.5067667000000000143700162880122661590576171875,
        "lon": 32.2783332999999998946805135346949100494384765625
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 17, 2026 20:00 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 352 meters
  • Data Points: 27 AIS positions
  • Centroid: 31.5063, 32.2777
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 352,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 27,
    "centroid": {
        "lat": 31.5063490185185202108186786063015460968017578125,
        "lon": 32.2776708629629638380720280110836029052734375
    },
    "bbox": {
        "min_lat": 31.504760000000000985664883046410977840423583984375,
        "min_lon": 32.27446330000000074278432293795049190521240234375,
        "max_lat": 31.5067667000000000143700162880122661590576171875,
        "max_lon": 32.27835999999999927467797533608973026275634765625
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Sts discovered_020
Jun 17, 2026 19:56 UTC 90/100 ▼
Vessel A: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
Vessel B: IMO 9311048 (FORTUNA ONE) LIBERIA
  • Minimum Distance: 30 meters
  • Average Distance: 32 meters
  • Duration: 1h 54m
  • Period: 2026-06-17T19:51:28+00:00 to 2026-06-17T21:45:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_020

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 30m, avg 32m) for 114 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 Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 30m, avg 32m
Duration20/25Duration 114 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636026167,
        "imo": 9311048,
        "name": "FORTUNA ONE",
        "flag": "LIBERIA"
    },
    "min_distance_m": 29.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 32.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 114.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 6846,
    "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": "2026-06-17T19:51:28+00:00",
        "end": "2026-06-17T21:45:34+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 30m, avg 32m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 114 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: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 30m, avg 32m) for 114 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 Eastern Mediterranean Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 19:51 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 4h 49m
  • Data Points: 27 AIS positions
  • Period: 2026-06-17T19:51:28+00:00 to 2026-06-18T00:40:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 289.19999999999998863131622783839702606201171875,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-06-17T19:51:28+00:00",
        "lat": 31.5063166999999992867742548696696758270263671875,
        "lon": 32.27769669999999990750438882969319820404052734375
    },
    "last_point": {
        "ts": "2026-06-18T00:40:40+00:00",
        "lat": 31.506450000000000954969436861574649810791015625,
        "lon": 32.27794999999999703277353546582162380218505859375
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 17, 2026 19:51 UTC 75.0% ▼
  • Duration: 4h 49m
  • Radius: 343 meters
  • Data Points: 27 AIS positions
  • Centroid: 31.5063, 32.2776
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 343.3999999999999772626324556767940521240234375,
    "duration_minutes": 289.19999999999998863131622783839702606201171875,
    "points": 27,
    "centroid": {
        "lat": 31.506300992592599641284323297441005706787109375,
        "lon": 32.27759877037036773117506527341902256011962890625
    },
    "bbox": {
        "min_lat": 31.504760000000000985664883046410977840423583984375,
        "min_lon": 32.27446330000000074278432293795049190521240234375,
        "max_lat": 31.506519999999998304929249570704996585845947265625,
        "max_lon": 32.27802669999999807259882800281047821044921875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 18:17 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 23m
  • Data Points: 28 AIS positions
  • Period: 2026-06-17T18:17:26+00:00 to 2026-06-18T00:40:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 383.19999999999998863131622783839702606201171875,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-06-17T18:17:26+00:00",
        "lat": 31.505513300000000498357621836476027965545654296875,
        "lon": 32.2762967000000031703166314400732517242431640625
    },
    "last_point": {
        "ts": "2026-06-18T00:40:40+00:00",
        "lat": 31.506450000000000954969436861574649810791015625,
        "lon": 32.27794999999999703277353546582162380218505859375
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 17, 2026 18:17 UTC 75.0% ▼
  • Duration: 6h 23m
  • Radius: 338 meters
  • Data Points: 28 AIS positions
  • Centroid: 31.5063, 32.2776
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 338,
    "duration_minutes": 383.19999999999998863131622783839702606201171875,
    "points": 28,
    "centroid": {
        "lat": 31.506272860714290118266944773495197296142578125,
        "lon": 32.27755226785713915660380735062062740325927734375
    },
    "bbox": {
        "min_lat": 31.504760000000000985664883046410977840423583984375,
        "min_lon": 32.27446330000000074278432293795049190521240234375,
        "max_lat": 31.506519999999998304929249570704996585845947265625,
        "max_lon": 32.27802669999999807259882800281047821044921875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Sts discovered_020
Jun 17, 2026 17:37 UTC 95/100 ▼
Vessel A: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
Vessel B: IMO 9311048 (FORTUNA ONE) LIBERIA
  • Minimum Distance: 30 meters
  • Average Distance: 32 meters
  • Duration: 4h 8m
  • Period: 2026-06-17T17:37:26+00:00 to 2026-06-17T21:45:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_020

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 30m, avg 32m) for 248 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 Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 30m, avg 32m
Duration25/25Duration 248 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636026167,
        "imo": 9311048,
        "name": "FORTUNA ONE",
        "flag": "LIBERIA"
    },
    "min_distance_m": 29.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 32.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 1.6999999999999999555910790149937383830547332763671875,
    "duration_minutes": 248.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 14888,
    "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": "2026-06-17T17:37:26+00:00",
        "end": "2026-06-17T21:45:34+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 30m, avg 32m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 248 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: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 30m, avg 32m) for 248 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 Eastern Mediterranean Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 17:01 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 31m
  • Data Points: 28 AIS positions
  • Period: 2026-06-17T17:55:24+00:00 to 2026-06-18T00:26:36+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 391.19999999999998863131622783839702606201171875,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-06-17T17:55:24+00:00",
        "lat": 31.50625000000000142108547152020037174224853515625,
        "lon": 32.27759999999999962483343551866710186004638671875
    },
    "last_point": {
        "ts": "2026-06-18T00:26:36+00:00",
        "lat": 31.506519999999998304929249570704996585845947265625,
        "lon": 32.27794999999999703277353546582162380218505859375
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 17, 2026 17:01 UTC 75.0% ▼
  • Duration: 6h 31m
  • Radius: 337 meters
  • Data Points: 28 AIS positions
  • Centroid: 31.5063, 32.2775
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 336.6000000000000227373675443232059478759765625,
    "duration_minutes": 391.19999999999998863131622783839702606201171875,
    "points": 28,
    "centroid": {
        "lat": 31.50626571785715412943318369798362255096435546875,
        "lon": 32.2775397678571351889331708662211894989013671875
    },
    "bbox": {
        "min_lat": 31.504760000000000985664883046410977840423583984375,
        "min_lon": 32.27446330000000074278432293795049190521240234375,
        "max_lat": 31.506519999999998304929249570704996585845947265625,
        "max_lon": 32.27802669999999807259882800281047821044921875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Sts🛰️✗ discovered_020
Jun 17, 2026 16:56 UTC 85/100 ▼
Vessel A: IMO 9311048 (FORTUNA ONE) LIBERIA
Vessel B: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
  • Minimum Distance: 23 meters
  • Average Distance: 29 meters
  • Duration: 1h 6m
  • Period: 2026-06-17T16:56:41+00:00 to 2026-06-17T18:03:31+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_020

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (FORTUNA ONE and FRANK LIGHT) maintained close proximity (min 23m, avg 29m) for 67 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 Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 23m, avg 29m
Duration15/25Duration 67 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-06-17T18:45:04.252040+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636026167,
        "imo": 9311048,
        "name": "FORTUNA ONE",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 22.800000000000000710542735760100185871124267578125,
    "avg_distance_m": 29.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 5.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 66.7999999999999971578290569595992565155029296875,
    "overlap_duration_s": 4010,
    "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": "2026-06-17T16:56:41+00:00",
        "end": "2026-06-17T18:03:31+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 23m, avg 29m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 67 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: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FORTUNA ONE and FRANK LIGHT) maintained close proximity (min 23m, avg 29m) for 67 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 Eastern Mediterranean Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.506325000000000358113538823090493679046630859375,
            "lon": 32.27782750000000078216544352471828460693359375
        },
        "time_window": {
            "start_ts": "2026-06-17T16:56:41+00:00",
            "end_ts": "2026-06-17T18:03:31+00:00"
        },
        "searched_at": "2026-06-17T18:45:04.252040+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 16:07 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 25m
  • Data Points: 24 AIS positions
  • Period: 2026-06-17T16:07:32+00:00 to 2026-06-17T22:33:27+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 385.8999999999999772626324556767940521240234375,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-06-17T16:07:32+00:00",
        "lat": 31.50634000000000156660462380386888980865478515625,
        "lon": 32.277766700000000810177880339324474334716796875
    },
    "last_point": {
        "ts": "2026-06-17T22:33:27+00:00",
        "lat": 31.50633669999999852961991564370691776275634765625,
        "lon": 32.27767329999999645906427758745849132537841796875
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 17, 2026 16:07 UTC 75.0% ▼
  • Duration: 6h 25m
  • Radius: 150 meters
  • Data Points: 24 AIS positions
  • Centroid: 31.5063, 32.2776
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 150,
    "duration_minutes": 385.8999999999999772626324556767940521240234375,
    "points": 24,
    "centroid": {
        "lat": 31.506279441666666940591312595643103122711181640625,
        "lon": 32.27759847916666302580779301933944225311279296875
    },
    "bbox": {
        "min_lat": 31.505513300000000498357621836476027965545654296875,
        "min_lon": 32.2762967000000031703166314400732517242431640625,
        "max_lat": 31.506353300000000672298483550548553466796875,
        "max_lon": 32.27779670000000322716005030088126659393310546875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Sts discovered_020
Jun 17, 2026 15:37 UTC 90/100 ▼
Vessel A: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
Vessel B: IMO 9311048 (FORTUNA ONE) LIBERIA
  • Minimum Distance: 32 meters
  • Average Distance: 35 meters
  • Duration: 1h 34m
  • Period: 2026-06-17T15:37:21+00:00 to 2026-06-17T17:11:29+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: discovered_020

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 32m, avg 35m) for 94 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 Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 32m, avg 35m
Duration20/25Duration 94 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636026167,
        "imo": 9311048,
        "name": "FORTUNA ONE",
        "flag": "LIBERIA"
    },
    "min_distance_m": 31.699999999999999289457264239899814128875732421875,
    "avg_distance_m": 35.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 4.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 94.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 5648,
    "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": "2026-06-17T15:37:21+00:00",
        "end": "2026-06-17T17:11:29+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 32m, avg 35m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 94 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: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FRANK LIGHT and FORTUNA ONE) maintained close proximity (min 32m, avg 35m) for 94 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 Eastern Mediterranean Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 15:37 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 20m
  • Data Points: 23 AIS positions
  • Period: 2026-06-17T15:37:21+00:00 to 2026-06-17T21:57:31+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 380.19999999999998863131622783839702606201171875,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-06-17T15:37:21+00:00",
        "lat": 31.506353300000000672298483550548553466796875,
        "lon": 32.27787330000000309837560052983462810516357421875
    },
    "last_point": {
        "ts": "2026-06-17T21:57:31+00:00",
        "lat": 31.506270000000000663931132294237613677978515625,
        "lon": 32.27752000000000265345079242251813411712646484375
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 17, 2026 15:37 UTC 75.0% ▼
  • Duration: 6h 20m
  • Radius: 151 meters
  • Data Points: 23 AIS positions
  • Centroid: 31.5063, 32.2776
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 150.80000000000001136868377216160297393798828125,
    "duration_minutes": 380.19999999999998863131622783839702606201171875,
    "points": 23,
    "centroid": {
        "lat": 31.506277673913047010501031763851642608642578125,
        "lon": 32.27761000869565322091148118488490581512451171875
    },
    "bbox": {
        "min_lat": 31.505513300000000498357621836476027965545654296875,
        "min_lon": 32.2762967000000031703166314400732517242431640625,
        "max_lat": 31.506353300000000672298483550548553466796875,
        "max_lon": 32.27787330000000309837560052983462810516357421875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 17, 2026 14:49 UTC 75.0% ▼
  • Duration: 6h 26m
  • Radius: 154 meters
  • Data Points: 19 AIS positions
  • Centroid: 31.5063, 32.2776
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 153.5,
    "duration_minutes": 386,
    "points": 19,
    "centroid": {
        "lat": 31.5062806947368443388768355362117290496826171875,
        "lon": 32.2776419368421016997672268189489841461181640625
    },
    "bbox": {
        "min_lat": 31.505513300000000498357621836476027965545654296875,
        "min_lon": 32.2762967000000031703166314400732517242431640625,
        "max_lat": 31.506416699999999053716237540356814861297607421875,
        "max_lon": 32.27796330000000324389475281350314617156982421875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 14:42 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 32m
  • Data Points: 21 AIS positions
  • Period: 2026-06-17T14:42:36+00:00 to 2026-06-17T21:15:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 392.8999999999999772626324556767940521240234375,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-06-17T14:42:36+00:00",
        "lat": 31.506450000000000954969436861574649810791015625,
        "lon": 32.2779833000000024867404135875403881072998046875
    },
    "last_point": {
        "ts": "2026-06-17T21:15:32+00:00",
        "lat": 31.5063032999999990124706528149545192718505859375,
        "lon": 32.27763999999999811052475706674158573150634765625
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 13:15 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 26m
  • Data Points: 15 AIS positions
  • Period: 2026-06-17T13:33:47+00:00 to 2026-06-17T20:00:38+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 386.8999999999999772626324556767940521240234375,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-06-17T13:33:47+00:00",
        "lat": 31.50659329999999869187377043999731540679931640625,
        "lon": 32.27826329999999899200702202506363391876220703125
    },
    "last_point": {
        "ts": "2026-06-17T20:00:38+00:00",
        "lat": 31.50632999999999839246811461634933948516845703125,
        "lon": 32.27769669999999990750438882969319820404052734375
    }
}
Methodology: 2026.01.18
Sts🛰️✗ discovered_020
Jun 17, 2026 12:39 UTC 66/100 ▼
Vessel A: IMO 9311048 (FORTUNA ONE) LIBERIA
Vessel B: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
  • Minimum Distance: 36 meters
  • Average Distance: 68 meters
  • Duration: 57 minutes
  • Period: 2026-06-17T12:39:00+00:00 to 2026-06-17T13:36:24+00:00
  • Vessel A Avg Speed: 0.8 knots
  • Vessel B Avg Speed: 0.5 knots
  • Zone: discovered_020

Confidence Analysis

Score: 66/100

Moderate-confidence STS candidate. Two tankers (FORTUNA ONE and FRANK LIGHT) maintained close proximity (min 36m, avg 68m) for 57 minutes. Both vessels were slow-moving (avg speeds 0.8 and 0.5 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 36m, avg 68m
Duration10/25Duration 57 minutes
Speed Stability9/20both very slow; variable speeds
Distance Consistency12/15Distance variance ±45m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-06-17T18:45:01.219912+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636026167,
        "imo": 9311048,
        "name": "FORTUNA ONE",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 36.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 68.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 45,
    "duration_minutes": 57.39999999999999857891452847979962825775146484375,
    "overlap_duration_s": 3444,
    "speed_a_avg": 0.8000000000000000444089209850062616169452667236328125,
    "speed_a_std": 1.12999999999999989341858963598497211933135986328125,
    "speed_b_avg": 0.5,
    "speed_b_std": 0.70999999999999996447286321199499070644378662109375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.8000000000000000444089209850062616169452667236328125,
            "max_sog": 1.600000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.5,
            "max_sog": 1
        }
    },
    "time_window": {
        "start": "2026-06-17T12:39:00+00:00",
        "end": "2026-06-17T13:36:24+00:00"
    },
    "points_count": {
        "vessel_a": 2,
        "vessel_b": 2
    },
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 66,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 36m, avg 68m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 57 minutes"
            },
            "speed_stability": {
                "score": 9,
                "max": 20,
                "detail": "both very slow; variable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b145m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (FORTUNA ONE and FRANK LIGHT) maintained close proximity (min 36m, avg 68m) for 57 minutes. Both vessels were slow-moving (avg speeds 0.8 and 0.5 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.508553299999999097735781106166541576385498046875,
            "lon": 32.27741999999999933379513095133006572723388671875
        },
        "time_window": {
            "start_ts": "2026-06-17T12:39:00+00:00",
            "end_ts": "2026-06-17T13:36:24+00:00"
        },
        "searched_at": "2026-06-17T18:45:01.219912+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 12:04 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 12m
  • Data Points: 26 AIS positions
  • Period: 2026-06-17T12:04:30+00:00 to 2026-06-17T18:17:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 372.8999999999999772626324556767940521240234375,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-06-17T12:04:30+00:00",
        "lat": 31.555286699999999910914993961341679096221923828125,
        "lon": 32.2975899999999995770849636755883693695068359375
    },
    "last_point": {
        "ts": "2026-06-17T18:17:26+00:00",
        "lat": 31.505513300000000498357621836476027965545654296875,
        "lon": 32.2762967000000031703166314400732517242431640625
    }
}
Methodology: 2026.01.18
Sts discovered_020
Jun 17, 2026 11:22 UTC 84/100 ▼
Vessel A: IMO 9311048 (FORTUNA ONE) LIBERIA
Vessel B: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
  • Minimum Distance: 36 meters
  • Average Distance: 64 meters
  • Duration: 2h 8m
  • Period: 2026-06-17T11:27:52+00:00 to 2026-06-17T13:36:24+00:00
  • Vessel A Avg Speed: 1.0 knots
  • Vessel B Avg Speed: 0.7 knots
  • Zone: discovered_020

Confidence Analysis

Score: 84/100

High-confidence STS candidate. Two tankers (FORTUNA ONE and FRANK LIGHT) maintained close proximity (min 36m, avg 64m) for 128 minutes. Both vessels were slow-moving (avg speeds 1.0 and 0.7 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 36m, avg 64m
Duration25/25Duration 128 minutes
Speed Stability12/20both very slow; somewhat variable speeds
Distance Consistency12/15Distance variance ±32m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636026167,
        "imo": 9311048,
        "name": "FORTUNA ONE",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 36.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 64.400000000000005684341886080801486968994140625,
    "distance_consistency_m": 32.5,
    "duration_minutes": 128.5,
    "overlap_duration_s": 7712,
    "speed_a_avg": 0.9699999999999999733546474089962430298328399658203125,
    "speed_a_std": 0.84999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0.729999999999999982236431605997495353221893310546875,
    "speed_b_std": 0.64000000000000001332267629550187848508358001708984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.9699999999999999733546474089962430298328399658203125,
            "max_sog": 1.600000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.729999999999999982236431605997495353221893310546875,
            "max_sog": 1.1999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-06-17T11:27:52+00:00",
        "end": "2026-06-17T13:36:24+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "score": {
        "value": 84,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 36m, avg 64m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 128 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "both very slow; 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: Eastern Mediterranean Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FORTUNA ONE and FRANK LIGHT) maintained close proximity (min 36m, avg 64m) for 128 minutes. Both vessels were slow-moving (avg speeds 1.0 and 0.7 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 11:06 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 36m
  • Data Points: 33 AIS positions
  • Period: 2026-06-17T11:40:56+00:00 to 2026-06-17T18:17:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 396.5,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-06-17T11:40:56+00:00",
        "lat": 31.580683300000000457430360256694257259368896484375,
        "lon": 32.29672000000000053887561080045998096466064453125
    },
    "last_point": {
        "ts": "2026-06-17T18:17:26+00:00",
        "lat": 31.505513300000000498357621836476027965545654296875,
        "lon": 32.2762967000000031703166314400732517242431640625
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 10:29 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 32m
  • Data Points: 45 AIS positions
  • Period: 2026-06-17T10:45:32+00:00 to 2026-06-17T17:17:35+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 392.1000000000000227373675443232059478759765625,
    "points_in_zone": 45,
    "first_point": {
        "ts": "2026-06-17T10:45:32+00:00",
        "lat": 31.5525200000000012323653209023177623748779296875,
        "lon": 32.31968330000000122481651487760245800018310546875
    },
    "last_point": {
        "ts": "2026-06-17T17:17:35+00:00",
        "lat": 31.5063099999999991496224538423120975494384765625,
        "lon": 32.27763329999999797337295603938400745391845703125
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 09:38 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 28m
  • Data Points: 45 AIS positions
  • Period: 2026-06-17T09:38:36+00:00 to 2026-06-17T16:07:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 388.8999999999999772626324556767940521240234375,
    "points_in_zone": 45,
    "first_point": {
        "ts": "2026-06-17T09:38:36+00:00",
        "lat": 31.546189999999999287183527485467493534088134765625,
        "lon": 32.32675330000000002428350853733718395233154296875
    },
    "last_point": {
        "ts": "2026-06-17T16:07:32+00:00",
        "lat": 31.50634000000000156660462380386888980865478515625,
        "lon": 32.277766700000000810177880339324474334716796875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 06:05 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 32m
  • Data Points: 39 AIS positions
  • Period: 2026-06-17T06:42:49+00:00 to 2026-06-17T13:15:31+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 392.69999999999998863131622783839702606201171875,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-06-17T06:42:49+00:00",
        "lat": 31.545946699999998230623532435856759548187255859375,
        "lon": 32.32653330000000124755388242192566394805908203125
    },
    "last_point": {
        "ts": "2026-06-17T13:15:31+00:00",
        "lat": 31.506750000000000255795384873636066913604736328125,
        "lon": 32.27849669999999804304025019519031047821044921875
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 17, 2026 06:05 UTC 75.0% ▼
  • Duration: 4h 43m
  • Radius: 932 meters
  • Data Points: 12 AIS positions
  • Centroid: 31.5479, 32.3244
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 931.700000000000045474735088646411895751953125,
    "duration_minutes": 283.80000000000001136868377216160297393798828125,
    "points": 12,
    "centroid": {
        "lat": 31.547902233333335431098021217621862888336181640625,
        "lon": 32.3243863833333335833231103606522083282470703125
    },
    "bbox": {
        "min_lat": 31.545796700000000356567397830076515674591064453125,
        "min_lon": 32.3180899999999979854692355729639530181884765625,
        "max_lat": 31.554346699999999970032149576582014560699462890625,
        "max_lon": 32.32675330000000002428350853733718395233154296875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 17, 2026 03:11 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 26m
  • Data Points: 8 AIS positions
  • Period: 2026-06-17T03:11:46+00:00 to 2026-06-17T09:38:36+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 386.80000000000001136868377216160297393798828125,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-06-17T03:11:46+00:00",
        "lat": 31.545210000000000860609361552633345127105712890625,
        "lon": 32.3257167000000009693394531495869159698486328125
    },
    "last_point": {
        "ts": "2026-06-17T09:38:36+00:00",
        "lat": 31.546189999999999287183527485467493534088134765625,
        "lon": 32.32675330000000002428350853733718395233154296875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 16, 2026 22:21 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 4h 50m
  • Data Points: 3 AIS positions
  • Period: 2026-06-16T22:21:12+00:00 to 2026-06-17T03:11:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 290.6000000000000227373675443232059478759765625,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-06-16T22:21:12+00:00",
        "lat": 31.545190000000001617763700778596103191375732421875,
        "lon": 32.324150000000003046807250939309597015380859375
    },
    "last_point": {
        "ts": "2026-06-17T03:11:46+00:00",
        "lat": 31.545210000000000860609361552633345127105712890625,
        "lon": 32.3257167000000009693394531495869159698486328125
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 16, 2026 21:09 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 2m
  • Data Points: 8 AIS positions
  • Period: 2026-06-16T21:09:07+00:00 to 2026-06-17T03:11:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 362.6000000000000227373675443232059478759765625,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-06-16T21:09:07+00:00",
        "lat": 31.5449832999999983940142556093633174896240234375,
        "lon": 32.32461669999999998026396497152745723724365234375
    },
    "last_point": {
        "ts": "2026-06-17T03:11:46+00:00",
        "lat": 31.545210000000000860609361552633345127105712890625,
        "lon": 32.3257167000000009693394531495869159698486328125
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 16, 2026 20:00 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 23m
  • Data Points: 10 AIS positions
  • Period: 2026-06-16T20:48:09+00:00 to 2026-06-17T03:11:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 383.6000000000000227373675443232059478759765625,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-06-16T20:48:09+00:00",
        "lat": 31.54502000000000094814822659827768802642822265625,
        "lon": 32.3246299999999990859578247182071208953857421875
    },
    "last_point": {
        "ts": "2026-06-17T03:11:46+00:00",
        "lat": 31.545210000000000860609361552633345127105712890625,
        "lon": 32.3257167000000009693394531495869159698486328125
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 16, 2026 20:00 UTC 75.0% ▼
  • Duration: 6h 23m
  • Radius: 107 meters
  • Data Points: 10 AIS positions
  • Centroid: 31.5451, 32.3246
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 106.900000000000005684341886080801486968994140625,
    "duration_minutes": 383.6000000000000227373675443232059478759765625,
    "points": 10,
    "centroid": {
        "lat": 31.54506966000000289795934804715216159820556640625,
        "lon": 32.32460332999999508274413528852164745330810546875
    },
    "bbox": {
        "min_lat": 31.5449832999999983940142556093633174896240234375,
        "min_lon": 32.324129999999996698534232564270496368408203125,
        "max_lat": 31.545210000000000860609361552633345127105712890625,
        "max_lon": 32.3257167000000009693394531495869159698486328125
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 16, 2026 18:06 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 4h 21m
  • Data Points: 16 AIS positions
  • Period: 2026-06-16T18:06:17+00:00 to 2026-06-16T22:27:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 261.1000000000000227373675443232059478759765625,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-06-16T18:06:17+00:00",
        "lat": 31.5449167000000016969352145679295063018798828125,
        "lon": 32.32497670000000056234057410620152950286865234375
    },
    "last_point": {
        "ts": "2026-06-16T22:27:22+00:00",
        "lat": 31.545183300000001480611899751238524913787841796875,
        "lon": 32.324129999999996698534232564270496368408203125
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 16, 2026 18:06 UTC 75.0% ▼
  • Duration: 4h 21m
  • Radius: 52 meters
  • Data Points: 16 AIS positions
  • Centroid: 31.5450, 32.3246
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 51.89999999999999857891452847979962825775146484375,
    "duration_minutes": 261.1000000000000227373675443232059478759765625,
    "points": 16,
    "centroid": {
        "lat": 31.54501208125000033533069654367864131927490234375,
        "lon": 32.32463853750000026820998755283653736114501953125
    },
    "bbox": {
        "min_lat": 31.5449167000000016969352145679295063018798828125,
        "min_lon": 32.324129999999996698534232564270496368408203125,
        "max_lat": 31.545190000000001617763700778596103191375732421875,
        "max_lon": 32.32497670000000056234057410620152950286865234375
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 16, 2026 17:39 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 4h 48m
  • Data Points: 20 AIS positions
  • Period: 2026-06-16T17:39:15+00:00 to 2026-06-16T22:27:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 288.1000000000000227373675443232059478759765625,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-06-16T17:39:15+00:00",
        "lat": 31.54493000000000080262907431460916996002197265625,
        "lon": 32.3249866999999966310497256927192211151123046875
    },
    "last_point": {
        "ts": "2026-06-16T22:27:22+00:00",
        "lat": 31.545183300000001480611899751238524913787841796875,
        "lon": 32.324129999999996698534232564270496368408203125
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 16, 2026 17:39 UTC 75.0% ▼
  • Duration: 4h 48m
  • Radius: 58 meters
  • Data Points: 20 AIS positions
  • Centroid: 31.5450, 32.3247
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 58.10000000000000142108547152020037174224853515625,
    "duration_minutes": 288.1000000000000227373675443232059478759765625,
    "points": 20,
    "centroid": {
        "lat": 31.544996495000003022823875653557479381561279296875,
        "lon": 32.324702164999990827709552831947803497314453125
    },
    "bbox": {
        "min_lat": 31.5449167000000016969352145679295063018798828125,
        "min_lon": 32.324129999999996698534232564270496368408203125,
        "max_lat": 31.545190000000001617763700778596103191375732421875,
        "max_lon": 32.3249866999999966310497256927192211151123046875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 16, 2026 15:07 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 28m
  • Data Points: 22 AIS positions
  • Period: 2026-06-16T15:07:27+00:00 to 2026-06-16T21:36:14+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 388.80000000000001136868377216160297393798828125,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-06-16T15:07:27+00:00",
        "lat": 31.545003300000001189573595183901488780975341796875,
        "lon": 32.3254400000000003956301952712237834930419921875
    },
    "last_point": {
        "ts": "2026-06-16T21:36:14+00:00",
        "lat": 31.545056699999999949568518786691129207611083984375,
        "lon": 32.32441000000000030922819860279560089111328125
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 16, 2026 15:07 UTC 75.0% ▼
  • Duration: 6h 28m
  • Radius: 55 meters
  • Data Points: 22 AIS positions
  • Centroid: 31.5450, 32.3249
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 55.2999999999999971578290569595992565155029296875,
    "duration_minutes": 388.80000000000001136868377216160297393798828125,
    "points": 22,
    "centroid": {
        "lat": 31.544980000000006015170583850704133510589599609375,
        "lon": 32.3248868181818096445567789487540721893310546875
    },
    "bbox": {
        "min_lat": 31.5449167000000016969352145679295063018798828125,
        "min_lon": 32.32441000000000030922819860279560089111328125,
        "max_lat": 31.545056699999999949568518786691129207611083984375,
        "max_lon": 32.32546669999999977562765707261860370635986328125
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 16, 2026 14:56 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 30m
  • Data Points: 22 AIS positions
  • Period: 2026-06-16T14:56:34+00:00 to 2026-06-16T21:27:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 390.6000000000000227373675443232059478759765625,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-06-16T14:56:34+00:00",
        "lat": 31.5450732999999985395334078930318355560302734375,
        "lon": 32.325569999999999026840669102966785430908203125
    },
    "last_point": {
        "ts": "2026-06-16T21:27:12+00:00",
        "lat": 31.545023300000000432419255957938730716705322265625,
        "lon": 32.32452330000000273457771982066333293914794921875
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 16, 2026 14:56 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 61 meters
  • Data Points: 22 AIS positions
  • Centroid: 31.5450, 32.3249
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 60.7000000000000028421709430404007434844970703125,
    "duration_minutes": 390.6000000000000227373675443232059478759765625,
    "points": 22,
    "centroid": {
        "lat": 31.544980754545459689097697264514863491058349609375,
        "lon": 32.32493954545453362925400142557919025421142578125
    },
    "bbox": {
        "min_lat": 31.5449167000000016969352145679295063018798828125,
        "min_lon": 32.32452330000000273457771982066333293914794921875,
        "max_lat": 31.5450732999999985395334078930318355560302734375,
        "max_lon": 32.325569999999999026840669102966785430908203125
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 16, 2026 13:07 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 15m
  • Data Points: 16 AIS positions
  • Period: 2026-06-16T13:56:34+00:00 to 2026-06-16T20:12:10+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 375.6000000000000227373675443232059478759765625,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-06-16T13:56:34+00:00",
        "lat": 31.5450833000000017136699170805513858795166015625,
        "lon": 32.3254299999999972214936860837042331695556640625
    },
    "last_point": {
        "ts": "2026-06-16T20:12:10+00:00",
        "lat": 31.544966699999999804049366503022611141204833984375,
        "lon": 32.32480000000000330828697769902646541595458984375
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 16, 2026 13:07 UTC 75.0% ▼
  • Duration: 6h 15m
  • Radius: 45 meters
  • Data Points: 16 AIS positions
  • Centroid: 31.5450, 32.3251
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 45.10000000000000142108547152020037174224853515625,
    "duration_minutes": 375.6000000000000227373675443232059478759765625,
    "points": 16,
    "centroid": {
        "lat": 31.544974999999997322674971655942499637603759765625,
        "lon": 32.3251095874999947454853099770843982696533203125
    },
    "bbox": {
        "min_lat": 31.5449167000000016969352145679295063018798828125,
        "min_lon": 32.32469329999999985147951520048081874847412109375,
        "max_lat": 31.5450833000000017136699170805513858795166015625,
        "max_lon": 32.325569999999999026840669102966785430908203125
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 16, 2026 01:01 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 4h 36m
  • Data Points: 3 AIS positions
  • Period: 2026-06-16T01:01:35+00:00 to 2026-06-16T05:37:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 276,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-06-16T01:01:35+00:00",
        "lat": 31.54560000000000030695446184836328029632568359375,
        "lon": 32.32629670000000032814568839967250823974609375
    },
    "last_point": {
        "ts": "2026-06-16T05:37:37+00:00",
        "lat": 31.545643299999998276916812756098806858062744140625,
        "lon": 32.326363299999997025224729441106319427490234375
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 15, 2026 20:13 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 5h 41m
  • Data Points: 4 AIS positions
  • Period: 2026-06-15T20:13:28+00:00 to 2026-06-16T01:55:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 341.8999999999999772626324556767940521240234375,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-06-15T20:13:28+00:00",
        "lat": 31.545100000000001472244548494927585124969482421875,
        "lon": 32.325406700000002047090674750506877899169921875
    },
    "last_point": {
        "ts": "2026-06-16T01:55:23+00:00",
        "lat": 31.54572999999999893816493568010628223419189453125,
        "lon": 32.3264633000000003448803909122943878173828125
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 15, 2026 18:13 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 29m
  • Data Points: 5 AIS positions
  • Period: 2026-06-15T18:32:27+00:00 to 2026-06-16T01:01:35+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 389.1000000000000227373675443232059478759765625,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-06-15T18:32:27+00:00",
        "lat": 31.545139999999999957935870043002068996429443359375,
        "lon": 32.32564330000000296649886877276003360748291015625
    },
    "last_point": {
        "ts": "2026-06-16T01:01:35+00:00",
        "lat": 31.54560000000000030695446184836328029632568359375,
        "lon": 32.32629670000000032814568839967250823974609375
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 15, 2026 17:07 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 3h 36m
  • Data Points: 11 AIS positions
  • Period: 2026-06-15T17:07:26+00:00 to 2026-06-15T20:43:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 216.19999999999998863131622783839702606201171875,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-06-15T17:07:26+00:00",
        "lat": 31.545096699999998435259840334765613079071044921875,
        "lon": 32.32566669999999930951162241399288177490234375
    },
    "last_point": {
        "ts": "2026-06-15T20:43:37+00:00",
        "lat": 31.54520000000000123918653116561472415924072265625,
        "lon": 32.32572329999999993788151186890900135040283203125
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 15, 2026 17:07 UTC 75.0% ▼
  • Duration: 3h 36m
  • Radius: 20 meters
  • Data Points: 11 AIS positions
  • Centroid: 31.5451, 32.3256
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 19.699999999999999289457264239899814128875732421875,
    "duration_minutes": 216.19999999999998863131622783839702606201171875,
    "points": 11,
    "centroid": {
        "lat": 31.5450845454545429902282194234430789947509765625,
        "lon": 32.32556515454546541832314687781035900115966796875
    },
    "bbox": {
        "min_lat": 31.545023300000000432419255957938730716705322265625,
        "min_lon": 32.325406700000002047090674750506877899169921875,
        "max_lat": 31.54520000000000123918653116561472415924072265625,
        "max_lon": 32.32572329999999993788151186890900135040283203125
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 18:19 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 1h 18m
  • Data Points: 3 AIS positions
  • Period: 2026-06-13T18:19:13+00:00 to 2026-06-13T19:37:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 78,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-06-13T18:19:13+00:00",
        "lat": 31.54564669999999892979758442379534244537353515625,
        "lon": 32.32531999999999783312887302599847316741943359375
    },
    "last_point": {
        "ts": "2026-06-13T19:37:12+00:00",
        "lat": 31.545616700000000065529093262739479541778564453125,
        "lon": 32.325226700000001756052370183169841766357421875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 17:58 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 1h 39m
  • Data Points: 4 AIS positions
  • Period: 2026-06-13T17:58:11+00:00 to 2026-06-13T19:37:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 99,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-06-13T17:58:11+00:00",
        "lat": 31.545623299999999034071151982061564922332763671875,
        "lon": 32.325316700000001901571522466838359832763671875
    },
    "last_point": {
        "ts": "2026-06-13T19:37:12+00:00",
        "lat": 31.545616700000000065529093262739479541778564453125,
        "lon": 32.325226700000001756052370183169841766357421875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 16:28 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 3h 9m
  • Data Points: 6 AIS positions
  • Period: 2026-06-13T16:28:06+00:00 to 2026-06-13T19:37:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 189.099999999999994315658113919198513031005859375,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-06-13T16:28:06+00:00",
        "lat": 31.54560000000000030695446184836328029632568359375,
        "lon": 32.325299999999998590283212251961231231689453125
    },
    "last_point": {
        "ts": "2026-06-13T19:37:12+00:00",
        "lat": 31.545616700000000065529093262739479541778564453125,
        "lon": 32.325226700000001756052370183169841766357421875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 14:19 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 5h 17m
  • Data Points: 8 AIS positions
  • Period: 2026-06-13T14:19:43+00:00 to 2026-06-13T19:37:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 317.5,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-06-13T14:19:43+00:00",
        "lat": 31.5458832999999998492057784460484981536865234375,
        "lon": 32.3256099999999975125319906510412693023681640625
    },
    "last_point": {
        "ts": "2026-06-13T19:37:12+00:00",
        "lat": 31.545616700000000065529093262739479541778564453125,
        "lon": 32.325226700000001756052370183169841766357421875
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 13:31 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 5m
  • Data Points: 13 AIS positions
  • Period: 2026-06-13T13:31:46+00:00 to 2026-06-13T19:37:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 365.3999999999999772626324556767940521240234375,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-06-13T13:31:46+00:00",
        "lat": 31.545866700000001259240889339707791805267333984375,
        "lon": 32.3256099999999975125319906510412693023681640625
    },
    "last_point": {
        "ts": "2026-06-13T19:37:12+00:00",
        "lat": 31.545616700000000065529093262739479541778564453125,
        "lon": 32.325226700000001756052370183169841766357421875
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 13, 2026 13:31 UTC 75.0% ▼
  • Duration: 6h 5m
  • Radius: 26 meters
  • Data Points: 13 AIS positions
  • Centroid: 31.5458, 32.3255
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 26.199999999999999289457264239899814128875732421875,
    "duration_minutes": 365.3999999999999772626324556767940521240234375,
    "points": 13,
    "centroid": {
        "lat": 31.54575076923077148194352048449218273162841796875,
        "lon": 32.32545437692306933286090497858822345733642578125
    },
    "bbox": {
        "min_lat": 31.54560000000000030695446184836328029632568359375,
        "min_lon": 32.325226700000001756052370183169841766357421875,
        "max_lat": 31.5458832999999998492057784460484981536865234375,
        "max_lon": 32.3256099999999975125319906510412693023681640625
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 12:07 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 17m
  • Data Points: 15 AIS positions
  • Period: 2026-06-13T12:07:42+00:00 to 2026-06-13T18:25:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 377.69999999999998863131622783839702606201171875,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-06-13T12:07:42+00:00",
        "lat": 31.546103299999998625935404561460018157958984375,
        "lon": 32.3258332999999993262463249266147613525390625
    },
    "last_point": {
        "ts": "2026-06-13T18:25:22+00:00",
        "lat": 31.545653300000001451053321943618357181549072265625,
        "lon": 32.32529000000000252157406066544353961944580078125
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 13, 2026 12:07 UTC 75.0% ▼
  • Duration: 6h 17m
  • Radius: 42 meters
  • Data Points: 15 AIS positions
  • Centroid: 31.5458, 32.3255
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 42,
    "duration_minutes": 377.69999999999998863131622783839702606201171875,
    "points": 15,
    "centroid": {
        "lat": 31.5458219933333339213277213275432586669921875,
        "lon": 32.3255371199999927966928225941956043243408203125
    },
    "bbox": {
        "min_lat": 31.54560000000000030695446184836328029632568359375,
        "min_lon": 32.32529000000000252157406066544353961944580078125,
        "max_lat": 31.546103299999998625935404561460018157958984375,
        "max_lon": 32.3258332999999993262463249266147613525390625
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 11:13 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 29m
  • Data Points: 16 AIS positions
  • Period: 2026-06-13T11:55:48+00:00 to 2026-06-13T18:25:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 389.6000000000000227373675443232059478759765625,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-06-13T11:55:48+00:00",
        "lat": 31.546206699999999045758158899843692779541015625,
        "lon": 32.32586669999999884339558775536715984344482421875
    },
    "last_point": {
        "ts": "2026-06-13T18:25:22+00:00",
        "lat": 31.545653300000001451053321943618357181549072265625,
        "lon": 32.32529000000000252157406066544353961944580078125
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 13, 2026 11:13 UTC 75.0% ▼
  • Duration: 6h 29m
  • Radius: 50 meters
  • Data Points: 16 AIS positions
  • Centroid: 31.5458, 32.3256
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 49.60000000000000142108547152020037174224853515625,
    "duration_minutes": 389.6000000000000227373675443232059478759765625,
    "points": 16,
    "centroid": {
        "lat": 31.545846037500002267961463076062500476837158203125,
        "lon": 32.32555771874999805959305376745760440826416015625
    },
    "bbox": {
        "min_lat": 31.54560000000000030695446184836328029632568359375,
        "min_lon": 32.32529000000000252157406066544353961944580078125,
        "max_lat": 31.546206699999999045758158899843692779541015625,
        "max_lon": 32.32586669999999884339558775536715984344482421875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 10:16 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 31m
  • Data Points: 17 AIS positions
  • Period: 2026-06-13T10:16:44+00:00 to 2026-06-13T16:47:51+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 391.1000000000000227373675443232059478759765625,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-06-13T10:16:44+00:00",
        "lat": 31.546516700000001520720616099424660205841064453125,
        "lon": 32.32612329999999900564944255165755748748779296875
    },
    "last_point": {
        "ts": "2026-06-13T16:47:51+00:00",
        "lat": 31.545623299999999034071151982061564922332763671875,
        "lon": 32.32530669999999872743501327931880950927734375
    }
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 13, 2026 10:16 UTC 75.0% ▼
  • Duration: 6h 31m
  • Radius: 66 meters
  • Data Points: 17 AIS positions
  • Centroid: 31.5460, 32.3257
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 66.2999999999999971578290569595992565155029296875,
    "duration_minutes": 391.1000000000000227373675443232059478759765625,
    "points": 17,
    "centroid": {
        "lat": 31.546025888235302403472815058194100856781005859375,
        "lon": 32.3257247176470485783283947966992855072021484375
    },
    "bbox": {
        "min_lat": 31.54560000000000030695446184836328029632568359375,
        "min_lon": 32.325299999999998590283212251961231231689453125,
        "max_lat": 31.546516700000001520720616099424660205841064453125,
        "max_lon": 32.32612329999999900564944255165755748748779296875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Loiter discovered_020
Jun 13, 2026 09:26 UTC 75.0% ▼
  • Duration: 4h 58m
  • Radius: 51 meters
  • Data Points: 18 AIS positions
  • Centroid: 31.5461, 32.3258
  • Zone: discovered_020
Show Raw Evidence JSON
{
    "radius_m": 50.7000000000000028421709430404007434844970703125,
    "duration_minutes": 298.80000000000001136868377216160297393798828125,
    "points": 18,
    "centroid": {
        "lat": 31.546143527777775972253948566503822803497314453125,
        "lon": 32.32581501111111066393277724273502826690673828125
    },
    "bbox": {
        "min_lat": 31.545829999999998705106918350793421268463134765625,
        "min_lon": 32.32555669999999992114680935628712177276611328125,
        "max_lat": 31.546530000000000626414475846104323863983154296875,
        "max_lon": 32.3261566999999985227987053804099559783935546875
    },
    "zone_id": "discovered_020"
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 09:03 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 5h 22m
  • Data Points: 19 AIS positions
  • Period: 2026-06-13T09:03:36+00:00 to 2026-06-13T14:25:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 322.1000000000000227373675443232059478759765625,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-06-13T09:03:36+00:00",
        "lat": 31.541696699999999253805071930401027202606201171875,
        "lon": 32.33993670000000264508344116620719432830810546875
    },
    "last_point": {
        "ts": "2026-06-13T14:25:41+00:00",
        "lat": 31.545829999999998705106918350793421268463134765625,
        "lon": 32.32558999999999826968632987700402736663818359375
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 08:00 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 24m
  • Data Points: 27 AIS positions
  • Period: 2026-06-13T08:00:58+00:00 to 2026-06-13T14:25:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 384.69999999999998863131622783839702606201171875,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-06-13T08:00:58+00:00",
        "lat": 31.528703300000000098179953056387603282928466796875,
        "lon": 32.30040670000000346817614627070724964141845703125
    },
    "last_point": {
        "ts": "2026-06-13T14:25:41+00:00",
        "lat": 31.545829999999998705106918350793421268463134765625,
        "lon": 32.32558999999999826968632987700402736663818359375
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 07:41 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 34m
  • Data Points: 32 AIS positions
  • Period: 2026-06-13T07:50:47+00:00 to 2026-06-13T14:25:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 394.8999999999999772626324556767940521240234375,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-06-13T07:50:47+00:00",
        "lat": 31.52792000000000172121872310526669025421142578125,
        "lon": 32.26102329999999795973053551279008388519287109375
    },
    "last_point": {
        "ts": "2026-06-13T14:25:41+00:00",
        "lat": 31.545829999999998705106918350793421268463134765625,
        "lon": 32.32558999999999826968632987700402736663818359375
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 06:00 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 33m
  • Data Points: 27 AIS positions
  • Period: 2026-06-13T06:10:07+00:00 to 2026-06-13T12:43:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 393.80000000000001136868377216160297393798828125,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-06-13T06:10:07+00:00",
        "lat": 31.745670000000000499085217597894370555877685546875,
        "lon": 31.9600267000000002326487447135150432586669921875
    },
    "last_point": {
        "ts": "2026-06-13T12:43:52+00:00",
        "lat": 31.546013299999998480416252277791500091552734375,
        "lon": 32.325749999999999317878973670303821563720703125
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 05:02 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 20m
  • Data Points: 31 AIS positions
  • Period: 2026-06-13T05:59:17+00:00 to 2026-06-13T12:19:50+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 380.6000000000000227373675443232059478759765625,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-06-13T05:59:17+00:00",
        "lat": 31.769143299999999641158865415491163730621337890625,
        "lon": 31.926396700000001516173142590560019016265869140625
    },
    "last_point": {
        "ts": "2026-06-13T12:19:50+00:00",
        "lat": 31.5460700000000002773958840407431125640869140625,
        "lon": 32.3257933000000008405550033785402774810791015625
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_020
Jun 13, 2026 04:57 UTC 80.0% ▼
  • Zone: discovered_020
  • Duration: 6h 19m
  • Data Points: 41 AIS positions
  • Period: 2026-06-13T04:57:47+00:00 to 2026-06-13T11:16:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_020",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 379,
    "points_in_zone": 41,
    "first_point": {
        "ts": "2026-06-13T04:57:47+00:00",
        "lat": 31.89730670000000145591911859810352325439453125,
        "lon": 31.733456700000001404760041623376309871673583984375
    },
    "last_point": {
        "ts": "2026-06-13T11:16:45+00:00",
        "lat": 31.54641670000000175377863342873752117156982421875,
        "lon": 32.32605670000000230857040151022374629974365234375
    }
}
Methodology: 2026.01.18
Zone Dwell Northwest Iberian Sea Surveillance Zone
Jun 12, 2026 16:35 UTC 80.0% ▼
  • Zone: Northwest Iberian Sea Surveillance Zone
  • Duration: 1h 58m
  • Data Points: 8 AIS positions
  • Period: 2026-06-12T16:35:11+00:00 to 2026-06-12T18:33:16+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_047",
    "zone_name": "Northwest Iberian Sea Surveillance Zone",
    "dwell_minutes": 118.099999999999994315658113919198513031005859375,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-06-12T16:35:11+00:00",
        "lat": 31.21124329999999957863110466860234737396240234375,
        "lon": 29.690096700000001561647877679206430912017822265625
    },
    "last_point": {
        "ts": "2026-06-12T18:33:16+00:00",
        "lat": 31.23659669999999977108018356375396251678466796875,
        "lon": 29.67478330000000141808413900434970855712890625
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_032
May 24, 2026 14:06 UTC 80.0% ▼
  • Zone: discovered_032
  • Duration: 1h 41m
  • Data Points: 31 AIS positions
  • Period: 2026-05-24T14:06:51+00:00 to 2026-05-24T15:48:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_032",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 101.7999999999999971578290569595992565155029296875,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-05-24T14:06:51+00:00",
        "lat": 34.52147670000000090340108727104961872100830078125,
        "lon": 33.51915670000000346817614627070724964141845703125
    },
    "last_point": {
        "ts": "2026-05-24T15:48:40+00:00",
        "lat": 34.29731000000000307181835523806512355804443359375,
        "lon": 33.34967000000000325599103234708309173583984375
    }
}
Methodology: 2026.01.18
Sts🛰️✗ discovered_032
May 24, 2026 13:03 UTC 62/100 ▼
Vessel A: IMO 9243318 (TRITONEA) Panama
Vessel B: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
  • Minimum Distance: 44 meters
  • Average Distance: 156 meters
  • Duration: 45 minutes
  • Period: 2026-05-24T13:03:41+00:00 to 2026-05-24T13:48:50+00:00
  • Vessel A Avg Speed: 1.8 knots
  • Vessel B Avg Speed: 1.7 knots
  • Zone: discovered_032

Confidence Analysis

Score: 62/100

Moderate-confidence STS candidate. Two tankers (TRITONEA and FRANK LIGHT) maintained close proximity (min 44m, avg 156m) for 45 minutes. Both vessels were slow-moving (avg speeds 1.8 and 1.7 knots). Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 44m, avg 156m
Duration10/25Duration 45 minutes
Speed Stability12/20moderate speed; very stable speeds
Distance Consistency5/15Distance variance ±103m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-24T20:00:04.072491+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001697,
        "imo": 9243318,
        "name": "TRITONEA",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 43.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 156.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 103.2999999999999971578290569595992565155029296875,
    "duration_minutes": 45.10000000000000142108547152020037174224853515625,
    "overlap_duration_s": 2709,
    "speed_a_avg": 1.770000000000000017763568394002504646778106689453125,
    "speed_a_std": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_b_avg": 1.7199999999999999733546474089962430298328399658203125,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 1.770000000000000017763568394002504646778106689453125,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
        },
        "vessel_b": {
            "avg_sog": 1.7199999999999999733546474089962430298328399658203125,
            "max_sog": 1.8000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-05-24T13:03:41+00:00",
        "end": "2026-05-24T13:48:50+00:00"
    },
    "points_count": {
        "vessel_a": 17,
        "vessel_b": 17
    },
    "zone_id": "discovered_032",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 62,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 44m, avg 156m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 45 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "moderate speed; very stable speeds"
            },
            "distance_consistency": {
                "score": 5,
                "max": 15,
                "detail": "Distance variance \u00b1103m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (TRITONEA and FRANK LIGHT) maintained close proximity (min 44m, avg 156m) for 45 minutes. Both vessels were slow-moving (avg speeds 1.8 and 1.7 knots). Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.50985759999999658020897186361253261566162109375,
            "lon": 33.495561100000003307286533527076244354248046875
        },
        "time_window": {
            "start_ts": "2026-05-24T13:03:41+00:00",
            "end_ts": "2026-05-24T13:48:50+00:00"
        },
        "searched_at": "2026-05-24T20:00:04.072491+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_032
May 24, 2026 13:02 UTC 80.0% ▼
  • Zone: discovered_032
  • Duration: 2h 46m
  • Data Points: 40 AIS positions
  • Period: 2026-05-24T13:02:05+00:00 to 2026-05-24T15:48:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_032",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 166.599999999999994315658113919198513031005859375,
    "points_in_zone": 40,
    "first_point": {
        "ts": "2026-05-24T13:02:05+00:00",
        "lat": 34.5092532999999974663296598009765148162841796875,
        "lon": 33.48156329999999769597707199864089488983154296875
    },
    "last_point": {
        "ts": "2026-05-24T15:48:40+00:00",
        "lat": 34.29731000000000307181835523806512355804443359375,
        "lon": 33.34967000000000325599103234708309173583984375
    }
}
Methodology: 2026.01.18
Sts🛰️✗ discovered_032
May 24, 2026 12:04 UTC 75/100 ▼
Vessel A: IMO 9243318 (TRITONEA) Panama
Vessel B: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
  • Minimum Distance: 31 meters
  • Average Distance: 126 meters
  • Duration: 1h 44m
  • Period: 2026-05-24T12:04:07+00:00 to 2026-05-24T13:48:50+00:00
  • Vessel A Avg Speed: 1.7 knots
  • Vessel B Avg Speed: 1.7 knots
  • Zone: discovered_032

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (TRITONEA and FRANK LIGHT) maintained close proximity (min 31m, avg 126m) for 105 minutes. Both vessels were slow-moving (avg speeds 1.7 and 1.7 knots). Moderate distance variation observed during the encounter. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 31m, avg 126m
Duration20/25Duration 105 minutes
Speed Stability12/20moderate speed; very stable speeds
Distance Consistency8/15Distance variance ±86m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-24T19:00:04.160189+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001697,
        "imo": 9243318,
        "name": "TRITONEA",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 31.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 126.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 86.2999999999999971578290569595992565155029296875,
    "duration_minutes": 104.7000000000000028421709430404007434844970703125,
    "overlap_duration_s": 6283,
    "speed_a_avg": 1.70999999999999996447286321199499070644378662109375,
    "speed_a_std": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_b_avg": 1.6599999999999999200639422269887290894985198974609375,
    "speed_b_std": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 1.70999999999999996447286321199499070644378662109375,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
        },
        "vessel_b": {
            "avg_sog": 1.6599999999999999200639422269887290894985198974609375,
            "max_sog": 1.8000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-05-24T12:04:07+00:00",
        "end": "2026-05-24T13:48:50+00:00"
    },
    "points_count": {
        "vessel_a": 33,
        "vessel_b": 33
    },
    "zone_id": "discovered_032",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 31m, avg 126m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 105 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "moderate speed; very stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b186m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (TRITONEA and FRANK LIGHT) maintained close proximity (min 31m, avg 126m) for 105 minutes. Both vessels were slow-moving (avg speeds 1.7 and 1.7 knots). Moderate distance variation observed during the encounter. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.50857859999999988076524459756910800933837890625,
            "lon": 33.48101669999999785432009957730770111083984375
        },
        "time_window": {
            "start_ts": "2026-05-24T12:04:07+00:00",
            "end_ts": "2026-05-24T13:48:50+00:00"
        },
        "searched_at": "2026-05-24T19:00:04.160189+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_032
May 24, 2026 12:02 UTC 80.0% ▼
  • Zone: discovered_032
  • Duration: 3h 46m
  • Data Points: 54 AIS positions
  • Period: 2026-05-24T12:02:38+00:00 to 2026-05-24T15:48:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_032",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 226,
    "points_in_zone": 54,
    "first_point": {
        "ts": "2026-05-24T12:02:38+00:00",
        "lat": 34.505103300000001809166860766708850860595703125,
        "lon": 33.44931669999999712672433815896511077880859375
    },
    "last_point": {
        "ts": "2026-05-24T15:48:40+00:00",
        "lat": 34.29731000000000307181835523806512355804443359375,
        "lon": 33.34967000000000325599103234708309173583984375
    }
}
Methodology: 2026.01.18
Sts🛰️✗ discovered_032
May 24, 2026 11:02 UTC 80/100 ▼
Vessel A: IMO 9243318 (TRITONEA) Panama
Vessel B: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
  • Minimum Distance: 31 meters
  • Average Distance: 103 meters
  • Duration: 2h 46m
  • Period: 2026-05-24T11:02:11+00:00 to 2026-05-24T13:48:50+00:00
  • Vessel A Avg Speed: 1.6 knots
  • Vessel B Avg Speed: 1.6 knots
  • Zone: discovered_032

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (TRITONEA and FRANK LIGHT) maintained close proximity (min 31m, avg 103m) for 167 minutes. Both vessels were slow-moving (avg speeds 1.6 and 1.6 knots). Moderate distance variation observed during the encounter. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 31m, avg 103m
Duration25/25Duration 167 minutes
Speed Stability12/20moderate speed; very stable speeds
Distance Consistency8/15Distance variance ±76m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-24T17:45:07.173853+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001697,
        "imo": 9243318,
        "name": "TRITONEA",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 31.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 102.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 75.599999999999994315658113919198513031005859375,
    "duration_minutes": 166.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 9999,
    "speed_a_avg": 1.62000000000000010658141036401502788066864013671875,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 1.5800000000000000710542735760100185871124267578125,
    "speed_b_std": 0.13000000000000000444089209850062616169452667236328125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 1.62000000000000010658141036401502788066864013671875,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
        },
        "vessel_b": {
            "avg_sog": 1.5800000000000000710542735760100185871124267578125,
            "max_sog": 1.8000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-05-24T11:02:11+00:00",
        "end": "2026-05-24T13:48:50+00:00"
    },
    "points_count": {
        "vessel_a": 55,
        "vessel_b": 55
    },
    "zone_id": "discovered_032",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 31m, avg 103m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 167 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "moderate speed; very stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b176m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (TRITONEA and FRANK LIGHT) maintained close proximity (min 31m, avg 103m) for 167 minutes. Both vessels were slow-moving (avg speeds 1.6 and 1.6 knots). Moderate distance variation observed during the encounter. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.50609539999999952897269395180046558380126953125,
            "lon": 33.46205429999999836354618309997022151947021484375
        },
        "time_window": {
            "start_ts": "2026-05-24T11:02:11+00:00",
            "end_ts": "2026-05-24T13:48:50+00:00"
        },
        "searched_at": "2026-05-24T17:45:07.173853+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell discovered_032
May 24, 2026 11:01 UTC 80.0% ▼
  • Zone: discovered_032
  • Duration: 4h 47m
  • Data Points: 73 AIS positions
  • Period: 2026-05-24T11:01:17+00:00 to 2026-05-24T15:48:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_032",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 287.3999999999999772626324556767940521240234375,
    "points_in_zone": 73,
    "first_point": {
        "ts": "2026-05-24T11:01:17+00:00",
        "lat": 34.50020330000000257086867350153625011444091796875,
        "lon": 33.41876330000000194786480278708040714263916015625
    },
    "last_point": {
        "ts": "2026-05-24T15:48:40+00:00",
        "lat": 34.29731000000000307181835523806512355804443359375,
        "lon": 33.34967000000000325599103234708309173583984375
    }
}
Methodology: 2026.01.18
Sts🛰️✗ discovered_032
May 24, 2026 10:04 UTC 80/100 ▼
Vessel A: IMO 9243318 (TRITONEA) Panama
Vessel B: IMO 9724726 (FRANK LIGHT) MARSHALL ISLANDS
  • Minimum Distance: 31 meters
  • Average Distance: 90 meters
  • Duration: 3h 44m
  • Period: 2026-05-24T10:04:00+00:00 to 2026-05-24T13:48:50+00:00
  • Vessel A Avg Speed: 1.6 knots
  • Vessel B Avg Speed: 1.6 knots
  • Zone: discovered_032

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (TRITONEA and FRANK LIGHT) maintained close proximity (min 31m, avg 90m) for 225 minutes. Both vessels were slow-moving (avg speeds 1.6 and 1.6 knots). Moderate distance variation observed during the encounter. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 31m, avg 90m
Duration25/25Duration 225 minutes
Speed Stability12/20moderate speed; very stable speeds
Distance Consistency8/15Distance variance ±69m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-24T16:45:09.204455+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352001697,
        "imo": 9243318,
        "name": "TRITONEA",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 538011846,
        "imo": 9724726,
        "name": "FRANK LIGHT",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 31.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 89.900000000000005684341886080801486968994140625,
    "distance_consistency_m": 68.599999999999994315658113919198513031005859375,
    "duration_minutes": 224.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 13490,
    "speed_a_avg": 1.6100000000000000976996261670137755572795867919921875,
    "speed_a_std": 0.13000000000000000444089209850062616169452667236328125,
    "speed_b_avg": 1.5700000000000000621724893790087662637233734130859375,
    "speed_b_std": 0.11999999999999999555910790149937383830547332763671875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 1.6100000000000000976996261670137755572795867919921875,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
        },
        "vessel_b": {
            "avg_sog": 1.5700000000000000621724893790087662637233734130859375,
            "max_sog": 1.8000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-05-24T10:04:00+00:00",
        "end": "2026-05-24T13:48:50+00:00"
    },
    "points_count": {
        "vessel_a": 77,
        "vessel_b": 77
    },
    "zone_id": "discovered_032",
    "zone_name": "Gulf of Oman Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 31m, avg 90m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 225 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "moderate speed; very stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b169m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Gulf of Oman Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (TRITONEA and FRANK LIGHT) maintained close proximity (min 31m, avg 90m) for 225 minutes. Both vessels were slow-moving (avg speeds 1.6 and 1.6 knots). Moderate distance variation observed during the encounter. Event occurred in Gulf of Oman Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.5035816999999980225766194052994251251220703125,
            "lon": 33.44529039999999753263182356022298336029052734375
        },
        "time_window": {
            "start_ts": "2026-05-24T10:04:00+00:00",
            "end_ts": "2026-05-24T13:48:50+00:00"
        },
        "searched_at": "2026-05-24T16:45:09.204455+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18

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.