MANTA BEYLERBEYI

IMO 9543079

Vessel information

Vessel Name MANTA BEYLERBEYI
IMO Number 9543079
MMSI 352005974
Vessel Type Tanker
Flag 🇵🇦 PANAMA
Call Sign 3E8475
Length 180 m
Beam 29 m

Detected Events (100)

Sts Bosphorus/Dardanelles Approach
Sep 15, 2026 09:14 UTC 75/100 ▼
Vessel A: IMO 9258014 (NOSTOS) Liberia
Vessel B: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
  • Minimum Distance: 421 meters
  • Average Distance: 453 meters
  • Duration: 2h 3m
  • Period: 2026-09-15T09:26:20+00:00 to 2026-09-15T11:29:18+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 421m, avg 453m) for 123 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 421m, avg 453m
Duration25/25Duration 123 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±21m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "min_distance_m": 420.6000000000000227373675443232059478759765625,
    "avg_distance_m": 453.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 20.800000000000000710542735760100185871124267578125,
    "duration_minutes": 123,
    "overlap_duration_s": 7378,
    "speed_a_avg": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_a_std": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_b_avg": 0.11999999999999999555910790149937383830547332763671875,
    "speed_b_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1499999999999999944488848768742172978818416595458984375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0.11999999999999999555910790149937383830547332763671875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-09-15T09:26:20+00:00",
        "end": "2026-09-15T11:29:18+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 421m, avg 453m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 123 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b121m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 421m, avg 453m) for 123 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus\/Dardanelles Approach, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 09:14 UTC 75/100 ▼
Vessel A: IMO 9258014 (NOSTOS) Liberia
Vessel B: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
  • Minimum Distance: 421 meters
  • Average Distance: 453 meters
  • Duration: 2h 3m
  • Period: 2026-09-15T09:26:20+00:00 to 2026-09-15T11:29:18+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 421m, avg 453m) for 123 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 421m, avg 453m
Duration25/25Duration 123 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±21m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "min_distance_m": 420.6000000000000227373675443232059478759765625,
    "avg_distance_m": 453.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 20.800000000000000710542735760100185871124267578125,
    "duration_minutes": 123,
    "overlap_duration_s": 7378,
    "speed_a_avg": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_a_std": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_b_avg": 0.11999999999999999555910790149937383830547332763671875,
    "speed_b_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1499999999999999944488848768742172978818416595458984375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0.11999999999999999555910790149937383830547332763671875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-09-15T09:26:20+00:00",
        "end": "2026-09-15T11:29:18+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 421m, avg 453m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 123 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b121m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 421m, avg 453m) for 123 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Bosphorus/Dardanelles Approach
Sep 15, 2026 07:32 UTC 65/100 ▼
Vessel A: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
Vessel B: IMO 9258014 (NOSTOS) Liberia
  • Minimum Distance: 409 meters
  • Average Distance: 466 meters
  • Duration: 1 hours
  • Period: 2026-09-15T07:32:37+00:00 to 2026-09-15T08:32:37+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 409m, avg 466m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 409m, avg 466m
Duration15/25Duration 60 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±29m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "vessel_b": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "min_distance_m": 409,
    "avg_distance_m": 465.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 28.699999999999999289457264239899814128875732421875,
    "duration_minutes": 60,
    "overlap_duration_s": 3600,
    "speed_a_avg": 0.11999999999999999555910790149937383830547332763671875,
    "speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_std": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.11999999999999999555910790149937383830547332763671875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-09-15T07:32:37+00:00",
        "end": "2026-09-15T08:32:37+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 409m, avg 466m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 60 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b129m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 409m, avg 466m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus\/Dardanelles Approach, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 07:32 UTC 65/100 ▼
Vessel A: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
Vessel B: IMO 9258014 (NOSTOS) Liberia
  • Minimum Distance: 409 meters
  • Average Distance: 466 meters
  • Duration: 1 hours
  • Period: 2026-09-15T07:32:37+00:00 to 2026-09-15T08:32:37+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 409m, avg 466m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 409m, avg 466m
Duration15/25Duration 60 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±29m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "vessel_b": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "min_distance_m": 409,
    "avg_distance_m": 465.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 28.699999999999999289457264239899814128875732421875,
    "duration_minutes": 60,
    "overlap_duration_s": 3600,
    "speed_a_avg": 0.11999999999999999555910790149937383830547332763671875,
    "speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_std": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.11999999999999999555910790149937383830547332763671875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-09-15T07:32:37+00:00",
        "end": "2026-09-15T08:32:37+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 409m, avg 466m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 60 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b129m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 409m, avg 466m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 06:08 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 30m
  • Data Points: 71 AIS positions
  • Period: 2026-09-15T06:08:37+00:00 to 2026-09-15T12:38:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 390,
    "points_in_zone": 71,
    "first_point": {
        "ts": "2026-09-15T06:08:37+00:00",
        "lat": 40.9504816999999974314050632528960704803466796875,
        "lon": 28.732213300000001510170477558858692646026611328125
    },
    "last_point": {
        "ts": "2026-09-15T12:38:37+00:00",
        "lat": 40.94987499999999869260136620141565799713134765625,
        "lon": 28.731854999999999478177414857782423496246337890625
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 15, 2026 06:08 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 30m
  • Data Points: 71 AIS positions
  • Period: 2026-09-15T06:08:37+00:00 to 2026-09-15T12:38:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 390,
    "points_in_zone": 71,
    "first_point": {
        "ts": "2026-09-15T06:08:37+00:00",
        "lat": 40.9504816999999974314050632528960704803466796875,
        "lon": 28.732213300000001510170477558858692646026611328125
    },
    "last_point": {
        "ts": "2026-09-15T12:38:37+00:00",
        "lat": 40.94987499999999869260136620141565799713134765625,
        "lon": 28.731854999999999478177414857782423496246337890625
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 15, 2026 06:08 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 87 meters
  • Data Points: 71 AIS positions
  • Centroid: 40.9500, 28.7324
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 87.2999999999999971578290569595992565155029296875,
    "duration_minutes": 390,
    "points": 71,
    "centroid": {
        "lat": 40.94998178169014835248162853531539440155029296875,
        "lon": 28.732436571830984206599168828688561916351318359375
    },
    "bbox": {
        "min_lat": 40.9495282999999972162186168134212493896484375,
        "min_lon": 28.731441700000001304715624428354203701019287109375,
        "max_lat": 40.9504816999999974314050632528960704803466796875,
        "max_lon": 28.733336699999998842258719378150999546051025390625
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 06:08 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 87 meters
  • Data Points: 71 AIS positions
  • Centroid: 40.9500, 28.7324
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 87.2999999999999971578290569595992565155029296875,
    "duration_minutes": 390,
    "points": 71,
    "centroid": {
        "lat": 40.94998178169014835248162853531539440155029296875,
        "lon": 28.732436571830984206599168828688561916351318359375
    },
    "bbox": {
        "min_lat": 40.9495282999999972162186168134212493896484375,
        "min_lon": 28.731441700000001304715624428354203701019287109375,
        "max_lat": 40.9504816999999974314050632528960704803466796875,
        "max_lon": 28.733336699999998842258719378150999546051025390625
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 05:08 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 39m
  • Data Points: 74 AIS positions
  • Period: 2026-09-15T05:50:37+00:00 to 2026-09-15T12:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 399,
    "points_in_zone": 74,
    "first_point": {
        "ts": "2026-09-15T05:50:37+00:00",
        "lat": 40.95055500000000137106326292268931865692138671875,
        "lon": 28.731653300000001394209903082810342311859130859375
    },
    "last_point": {
        "ts": "2026-09-15T12:29:37+00:00",
        "lat": 40.94988670000000041682142182253301143646240234375,
        "lon": 28.731913299999998656630850746296346187591552734375
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 15, 2026 05:08 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 39m
  • Data Points: 74 AIS positions
  • Period: 2026-09-15T05:50:37+00:00 to 2026-09-15T12:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 399,
    "points_in_zone": 74,
    "first_point": {
        "ts": "2026-09-15T05:50:37+00:00",
        "lat": 40.95055500000000137106326292268931865692138671875,
        "lon": 28.731653300000001394209903082810342311859130859375
    },
    "last_point": {
        "ts": "2026-09-15T12:29:37+00:00",
        "lat": 40.94988670000000041682142182253301143646240234375,
        "lon": 28.731913299999998656630850746296346187591552734375
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 15, 2026 05:08 UTC 75.0% ▼
  • Duration: 6h 39m
  • Radius: 90 meters
  • Data Points: 74 AIS positions
  • Centroid: 40.9500, 28.7324
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 90.2999999999999971578290569595992565155029296875,
    "duration_minutes": 399,
    "points": 74,
    "centroid": {
        "lat": 40.950012431081091790474602021276950836181640625,
        "lon": 28.732408736486487299544023699127137660980224609375
    },
    "bbox": {
        "min_lat": 40.9495282999999972162186168134212493896484375,
        "min_lon": 28.731441700000001304715624428354203701019287109375,
        "max_lat": 40.95055500000000137106326292268931865692138671875,
        "max_lon": 28.733336699999998842258719378150999546051025390625
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 05:08 UTC 75.0% ▼
  • Duration: 6h 39m
  • Radius: 90 meters
  • Data Points: 74 AIS positions
  • Centroid: 40.9500, 28.7324
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 90.2999999999999971578290569595992565155029296875,
    "duration_minutes": 399,
    "points": 74,
    "centroid": {
        "lat": 40.950012431081091790474602021276950836181640625,
        "lon": 28.732408736486487299544023699127137660980224609375
    },
    "bbox": {
        "min_lat": 40.9495282999999972162186168134212493896484375,
        "min_lon": 28.731441700000001304715624428354203701019287109375,
        "max_lat": 40.95055500000000137106326292268931865692138671875,
        "max_lon": 28.733336699999998842258719378150999546051025390625
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 15, 2026 04:02 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 36m
  • Data Points: 74 AIS positions
  • Period: 2026-09-15T04:50:37+00:00 to 2026-09-15T11:26:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 396,
    "points_in_zone": 74,
    "first_point": {
        "ts": "2026-09-15T04:50:37+00:00",
        "lat": 40.950978300000002718661562539637088775634765625,
        "lon": 28.731549999999998590283212251961231231689453125
    },
    "last_point": {
        "ts": "2026-09-15T11:26:37+00:00",
        "lat": 40.94979670000000027130226953886449337005615234375,
        "lon": 28.731971699999999003694028942845761775970458984375
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 04:02 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 36m
  • Data Points: 74 AIS positions
  • Period: 2026-09-15T04:50:37+00:00 to 2026-09-15T11:26:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 396,
    "points_in_zone": 74,
    "first_point": {
        "ts": "2026-09-15T04:50:37+00:00",
        "lat": 40.950978300000002718661562539637088775634765625,
        "lon": 28.731549999999998590283212251961231231689453125
    },
    "last_point": {
        "ts": "2026-09-15T11:26:37+00:00",
        "lat": 40.94979670000000027130226953886449337005615234375,
        "lon": 28.731971699999999003694028942845761775970458984375
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 15, 2026 04:02 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 125 meters
  • Data Points: 74 AIS positions
  • Centroid: 40.9501, 28.7324
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 125.2000000000000028421709430404007434844970703125,
    "duration_minutes": 396,
    "points": 74,
    "centroid": {
        "lat": 40.9501280162162260012337355874478816986083984375,
        "lon": 28.732424772972979809537719120271503925323486328125
    },
    "bbox": {
        "min_lat": 40.9495282999999972162186168134212493896484375,
        "min_lon": 28.731369999999998299244907684624195098876953125,
        "max_lat": 40.95103000000000292857293970882892608642578125,
        "max_lon": 28.733336699999998842258719378150999546051025390625
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 04:02 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 125 meters
  • Data Points: 74 AIS positions
  • Centroid: 40.9501, 28.7324
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 125.2000000000000028421709430404007434844970703125,
    "duration_minutes": 396,
    "points": 74,
    "centroid": {
        "lat": 40.9501280162162260012337355874478816986083984375,
        "lon": 28.732424772972979809537719120271503925323486328125
    },
    "bbox": {
        "min_lat": 40.9495282999999972162186168134212493896484375,
        "min_lon": 28.731369999999998299244907684624195098876953125,
        "max_lat": 40.95103000000000292857293970882892608642578125,
        "max_lon": 28.733336699999998842258719378150999546051025390625
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 15, 2026 03:02 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 39m
  • Data Points: 76 AIS positions
  • Period: 2026-09-15T03:50:37+00:00 to 2026-09-15T10:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 399,
    "points_in_zone": 76,
    "first_point": {
        "ts": "2026-09-15T03:50:37+00:00",
        "lat": 40.95150670000000303616616292856633663177490234375,
        "lon": 28.731473300000001103171598515473306179046630859375
    },
    "last_point": {
        "ts": "2026-09-15T10:29:37+00:00",
        "lat": 40.94979330000000317113517667166888713836669921875,
        "lon": 28.733039999999999025703800725750625133514404296875
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 03:02 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 39m
  • Data Points: 76 AIS positions
  • Period: 2026-09-15T03:50:37+00:00 to 2026-09-15T10:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 399,
    "points_in_zone": 76,
    "first_point": {
        "ts": "2026-09-15T03:50:37+00:00",
        "lat": 40.95150670000000303616616292856633663177490234375,
        "lon": 28.731473300000001103171598515473306179046630859375
    },
    "last_point": {
        "ts": "2026-09-15T10:29:37+00:00",
        "lat": 40.94979330000000317113517667166888713836669921875,
        "lon": 28.733039999999999025703800725750625133514404296875
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 15, 2026 03:02 UTC 75.0% ▼
  • Duration: 6h 39m
  • Radius: 135 meters
  • Data Points: 76 AIS positions
  • Centroid: 40.9504, 28.7322
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 135.099999999999994315658113919198513031005859375,
    "duration_minutes": 399,
    "points": 76,
    "centroid": {
        "lat": 40.9504437723684162619974813424050807952880859375,
        "lon": 28.7321565105263090345033560879528522491455078125
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.7313232999999996764017851091921329498291015625,
        "max_lat": 40.95150670000000303616616292856633663177490234375,
        "max_lon": 28.733288300000001669332050369121134281158447265625
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 03:02 UTC 75.0% ▼
  • Duration: 6h 39m
  • Radius: 135 meters
  • Data Points: 76 AIS positions
  • Centroid: 40.9504, 28.7322
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 135.099999999999994315658113919198513031005859375,
    "duration_minutes": 399,
    "points": 76,
    "centroid": {
        "lat": 40.9504437723684162619974813424050807952880859375,
        "lon": 28.7321565105263090345033560879528522491455078125
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.7313232999999996764017851091921329498291015625,
        "max_lat": 40.95150670000000303616616292856633663177490234375,
        "max_lon": 28.733288300000001669332050369121134281158447265625
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 02:05 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 30m
  • Data Points: 78 AIS positions
  • Period: 2026-09-15T02:59:37+00:00 to 2026-09-15T09:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 390,
    "points_in_zone": 78,
    "first_point": {
        "ts": "2026-09-15T02:59:37+00:00",
        "lat": 40.9517732999999992671291693113744258880615234375,
        "lon": 28.7314982999999983803718350827693939208984375
    },
    "last_point": {
        "ts": "2026-09-15T09:29:37+00:00",
        "lat": 40.9501082999999965750248520635068416595458984375,
        "lon": 28.73211330000000174322849488817155361175537109375
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 15, 2026 02:05 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 30m
  • Data Points: 78 AIS positions
  • Period: 2026-09-15T02:59:37+00:00 to 2026-09-15T09:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 390,
    "points_in_zone": 78,
    "first_point": {
        "ts": "2026-09-15T02:59:37+00:00",
        "lat": 40.9517732999999992671291693113744258880615234375,
        "lon": 28.7314982999999983803718350827693939208984375
    },
    "last_point": {
        "ts": "2026-09-15T09:29:37+00:00",
        "lat": 40.9501082999999965750248520635068416595458984375,
        "lon": 28.73211330000000174322849488817155361175537109375
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 15, 2026 02:05 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 140 meters
  • Data Points: 78 AIS positions
  • Centroid: 40.9507, 28.7320
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 140,
    "duration_minutes": 390,
    "points": 78,
    "centroid": {
        "lat": 40.95066666538460964375190087594091892242431640625,
        "lon": 28.73201775384615785924324882216751575469970703125
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.73131169999999912079147179611027240753173828125,
        "max_lat": 40.9517732999999992671291693113744258880615234375,
        "max_lon": 28.733288300000001669332050369121134281158447265625
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 02:05 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 140 meters
  • Data Points: 78 AIS positions
  • Centroid: 40.9507, 28.7320
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 140,
    "duration_minutes": 390,
    "points": 78,
    "centroid": {
        "lat": 40.95066666538460964375190087594091892242431640625,
        "lon": 28.73201775384615785924324882216751575469970703125
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.73131169999999912079147179611027240753173828125,
        "max_lat": 40.9517732999999992671291693113744258880615234375,
        "max_lon": 28.733288300000001669332050369121134281158447265625
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 15, 2026 01:08 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 27m
  • Data Points: 80 AIS positions
  • Period: 2026-09-15T01:59:37+00:00 to 2026-09-15T08:26:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 387,
    "points_in_zone": 80,
    "first_point": {
        "ts": "2026-09-15T01:59:37+00:00",
        "lat": 40.9519499999999965211827657185494899749755859375,
        "lon": 28.73147000000000161890056915581226348876953125
    },
    "last_point": {
        "ts": "2026-09-15T08:26:37+00:00",
        "lat": 40.9501417000000031976014724932610988616943359375,
        "lon": 28.73203170000000028494469006545841693878173828125
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 01:08 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 27m
  • Data Points: 80 AIS positions
  • Period: 2026-09-15T01:59:37+00:00 to 2026-09-15T08:26:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 387,
    "points_in_zone": 80,
    "first_point": {
        "ts": "2026-09-15T01:59:37+00:00",
        "lat": 40.9519499999999965211827657185494899749755859375,
        "lon": 28.73147000000000161890056915581226348876953125
    },
    "last_point": {
        "ts": "2026-09-15T08:26:37+00:00",
        "lat": 40.9501417000000031976014724932610988616943359375,
        "lon": 28.73203170000000028494469006545841693878173828125
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 15, 2026 01:08 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 163 meters
  • Data Points: 80 AIS positions
  • Centroid: 40.9509, 28.7319
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 162.900000000000005684341886080801486968994140625,
    "duration_minutes": 387,
    "points": 80,
    "centroid": {
        "lat": 40.9508939775000015970363165251910686492919921875,
        "lon": 28.73194595625000147265382111072540283203125
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.73131169999999912079147179611027240753173828125,
        "max_lat": 40.951965000000001282387529499828815460205078125,
        "max_lon": 28.733288300000001669332050369121134281158447265625
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 01:08 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 163 meters
  • Data Points: 80 AIS positions
  • Centroid: 40.9509, 28.7319
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 162.900000000000005684341886080801486968994140625,
    "duration_minutes": 387,
    "points": 80,
    "centroid": {
        "lat": 40.9508939775000015970363165251910686492919921875,
        "lon": 28.73194595625000147265382111072540283203125
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.73131169999999912079147179611027240753173828125,
        "max_lat": 40.951965000000001282387529499828815460205078125,
        "max_lon": 28.733288300000001669332050369121134281158447265625
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Sts🛰️✗ Bosphorus/Dardanelles Approach
Sep 15, 2026 01:02 UTC 55/100 ▼
Vessel A: IMO 9258014 (NOSTOS) Liberia
Vessel B: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
  • Minimum Distance: 492 meters
  • Average Distance: 495 meters
  • Duration: 39 minutes
  • Period: 2026-09-15T01:02:21+00:00 to 2026-09-15T01:41:19+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 492m, avg 495m) for 39 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 Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 492m, avg 495m
Duration5/25Duration 39 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Bosphorus/Dardanelles Approach

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-09-15T07:15:01.410652+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "min_distance_m": 491.80000000000001136868377216160297393798828125,
    "avg_distance_m": 494.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 2,
    "duration_minutes": 39,
    "overlap_duration_s": 2338,
    "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": "2026-09-15T01:02:21+00:00",
        "end": "2026-09-15T01:41:19+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 492m, avg 495m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 39 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: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 492m, avg 495m) for 39 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 Bosphorus\/Dardanelles Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 40.951572400000003426612238399684429168701171875,
            "lon": 28.734326800000001611579136806540191173553466796875
        },
        "time_window": {
            "start_ts": "2026-09-15T01:02:21+00:00",
            "end_ts": "2026-09-15T01:41:19+00:00"
        },
        "searched_at": "2026-09-15T07:15:01.410652+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 01:02 UTC 55/100 ▼
Vessel A: IMO 9258014 (NOSTOS) Liberia
Vessel B: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
  • Minimum Distance: 492 meters
  • Average Distance: 495 meters
  • Duration: 39 minutes
  • Period: 2026-09-15T01:02:21+00:00 to 2026-09-15T01:41:19+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 492m, avg 495m) for 39 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 Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 492m, avg 495m
Duration5/25Duration 39 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Black Sea 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: 2026-09-15T07:15:04.438176+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "min_distance_m": 491.80000000000001136868377216160297393798828125,
    "avg_distance_m": 494.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 2,
    "duration_minutes": 39,
    "overlap_duration_s": 2338,
    "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": "2026-09-15T01:02:21+00:00",
        "end": "2026-09-15T01:41:19+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 492m, avg 495m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 39 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: Black Sea Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 492m, avg 495m) for 39 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 Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 40.951572400000003426612238399684429168701171875,
            "lon": 28.734326800000001611579136806540191173553466796875
        },
        "time_window": {
            "start_ts": "2026-09-15T01:02:21+00:00",
            "end_ts": "2026-09-15T01:41:19+00:00"
        },
        "searched_at": "2026-09-15T07:15:04.438176+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts Bosphorus/Dardanelles Approach
Sep 15, 2026 00:47 UTC 60/100 ▼
Vessel A: IMO 9258014 (NOSTOS) Liberia
Vessel B: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
  • Minimum Distance: 482 meters
  • Average Distance: 493 meters
  • Duration: 54 minutes
  • Period: 2026-09-15T00:47:19+00:00 to 2026-09-15T01:41:19+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 482m, avg 493m) for 54 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 Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 482m, avg 493m
Duration10/25Duration 54 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "min_distance_m": 482.3999999999999772626324556767940521240234375,
    "avg_distance_m": 492.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 4.5,
    "duration_minutes": 54,
    "overlap_duration_s": 3240,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-15T00:47:19+00:00",
        "end": "2026-09-15T01:41:19+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 482m, avg 493m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 54 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 482m, avg 493m) for 54 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 Bosphorus\/Dardanelles Approach, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 00:47 UTC 60/100 ▼
Vessel A: IMO 9258014 (NOSTOS) Liberia
Vessel B: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
  • Minimum Distance: 482 meters
  • Average Distance: 493 meters
  • Duration: 54 minutes
  • Period: 2026-09-15T00:47:19+00:00 to 2026-09-15T01:41:19+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 482m, avg 493m) for 54 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 Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 482m, avg 493m
Duration10/25Duration 54 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "min_distance_m": 482.3999999999999772626324556767940521240234375,
    "avg_distance_m": 492.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 4.5,
    "duration_minutes": 54,
    "overlap_duration_s": 3240,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-15T00:47:19+00:00",
        "end": "2026-09-15T01:41:19+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 482m, avg 493m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 54 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 482m, avg 493m) for 54 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 Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 15, 2026 00:02 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 33m
  • Data Points: 75 AIS positions
  • Period: 2026-09-15T00:53:37+00:00 to 2026-09-15T07:26:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 393,
    "points_in_zone": 75,
    "first_point": {
        "ts": "2026-09-15T00:53:37+00:00",
        "lat": 40.9522733000000016545527614653110504150390625,
        "lon": 28.731616700000000008685674401931464672088623046875
    },
    "last_point": {
        "ts": "2026-09-15T07:26:37+00:00",
        "lat": 40.9499033000000025594999897293746471405029296875,
        "lon": 28.733125000000001136868377216160297393798828125
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 00:02 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 33m
  • Data Points: 75 AIS positions
  • Period: 2026-09-15T00:53:37+00:00 to 2026-09-15T07:26:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 393,
    "points_in_zone": 75,
    "first_point": {
        "ts": "2026-09-15T00:53:37+00:00",
        "lat": 40.9522733000000016545527614653110504150390625,
        "lon": 28.731616700000000008685674401931464672088623046875
    },
    "last_point": {
        "ts": "2026-09-15T07:26:37+00:00",
        "lat": 40.9499033000000025594999897293746471405029296875,
        "lon": 28.733125000000001136868377216160297393798828125
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 15, 2026 00:02 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 180 meters
  • Data Points: 75 AIS positions
  • Centroid: 40.9512, 28.7318
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 180.400000000000005684341886080801486968994140625,
    "duration_minutes": 393,
    "points": 75,
    "centroid": {
        "lat": 40.95115582133333731462698779068887233734130859375,
        "lon": 28.731760107999999576122718281112611293792724609375
    },
    "bbox": {
        "min_lat": 40.9499033000000025594999897293746471405029296875,
        "min_lon": 28.73131169999999912079147179611027240753173828125,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.733125000000001136868377216160297393798828125
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 15, 2026 00:02 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 180 meters
  • Data Points: 75 AIS positions
  • Centroid: 40.9512, 28.7318
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 180.400000000000005684341886080801486968994140625,
    "duration_minutes": 393,
    "points": 75,
    "centroid": {
        "lat": 40.95115582133333731462698779068887233734130859375,
        "lon": 28.731760107999999576122718281112611293792724609375
    },
    "bbox": {
        "min_lat": 40.9499033000000025594999897293746471405029296875,
        "min_lon": 28.73131169999999912079147179611027240753173828125,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.733125000000001136868377216160297393798828125
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 23:02 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 36m
  • Data Points: 70 AIS positions
  • Period: 2026-09-14T23:53:37+00:00 to 2026-09-15T06:29:38+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 396,
    "points_in_zone": 70,
    "first_point": {
        "ts": "2026-09-14T23:53:37+00:00",
        "lat": 40.95188999999999879264578339643776416778564453125,
        "lon": 28.73136170000000078061930253170430660247802734375
    },
    "last_point": {
        "ts": "2026-09-15T06:29:38+00:00",
        "lat": 40.95004329999999725941961514763534069061279296875,
        "lon": 28.7325833000000017136699170805513858795166015625
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 23:02 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 36m
  • Data Points: 70 AIS positions
  • Period: 2026-09-14T23:53:37+00:00 to 2026-09-15T06:29:38+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 396,
    "points_in_zone": 70,
    "first_point": {
        "ts": "2026-09-14T23:53:37+00:00",
        "lat": 40.95188999999999879264578339643776416778564453125,
        "lon": 28.73136170000000078061930253170430660247802734375
    },
    "last_point": {
        "ts": "2026-09-15T06:29:38+00:00",
        "lat": 40.95004329999999725941961514763534069061279296875,
        "lon": 28.7325833000000017136699170805513858795166015625
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 23:02 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 171 meters
  • Data Points: 70 AIS positions
  • Centroid: 40.9514, 28.7316
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 170.5,
    "duration_minutes": 396,
    "points": 70,
    "centroid": {
        "lat": 40.95137759285713485724045312963426113128662109375,
        "lon": 28.73158235285713857365408330224454402923583984375
    },
    "bbox": {
        "min_lat": 40.95004329999999725941961514763534069061279296875,
        "min_lon": 28.73131169999999912079147179611027240753173828125,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.7325833000000017136699170805513858795166015625
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 23:02 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 171 meters
  • Data Points: 70 AIS positions
  • Centroid: 40.9514, 28.7316
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 170.5,
    "duration_minutes": 396,
    "points": 70,
    "centroid": {
        "lat": 40.95137759285713485724045312963426113128662109375,
        "lon": 28.73158235285713857365408330224454402923583984375
    },
    "bbox": {
        "min_lat": 40.95004329999999725941961514763534069061279296875,
        "min_lon": 28.73131169999999912079147179611027240753173828125,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.7325833000000017136699170805513858795166015625
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 22:11 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 39m
  • Data Points: 66 AIS positions
  • Period: 2026-09-14T22:50:37+00:00 to 2026-09-15T05:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 399,
    "points_in_zone": 66,
    "first_point": {
        "ts": "2026-09-14T22:50:37+00:00",
        "lat": 40.9519049999999964484231895767152309417724609375,
        "lon": 28.731411699999998887733454466797411441802978515625
    },
    "last_point": {
        "ts": "2026-09-15T05:29:37+00:00",
        "lat": 40.95078670000000187201294465921819210052490234375,
        "lon": 28.731763300000000782574716140516102313995361328125
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 22:11 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 39m
  • Data Points: 66 AIS positions
  • Period: 2026-09-14T22:50:37+00:00 to 2026-09-15T05:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 399,
    "points_in_zone": 66,
    "first_point": {
        "ts": "2026-09-14T22:50:37+00:00",
        "lat": 40.9519049999999964484231895767152309417724609375,
        "lon": 28.731411699999998887733454466797411441802978515625
    },
    "last_point": {
        "ts": "2026-09-15T05:29:37+00:00",
        "lat": 40.95078670000000187201294465921819210052490234375,
        "lon": 28.731763300000000782574716140516102313995361328125
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 22:11 UTC 75.0% ▼
  • Duration: 6h 39m
  • Radius: 97 meters
  • Data Points: 66 AIS positions
  • Centroid: 40.9516, 28.7315
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 96.599999999999994315658113919198513031005859375,
    "duration_minutes": 399,
    "points": 66,
    "centroid": {
        "lat": 40.95162749696968518264839076437056064605712890625,
        "lon": 28.731470957575755420521090854890644550323486328125
    },
    "bbox": {
        "min_lat": 40.95078670000000187201294465921819210052490234375,
        "min_lon": 28.73131169999999912079147179611027240753173828125,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.731763300000000782574716140516102313995361328125
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 22:11 UTC 75.0% ▼
  • Duration: 6h 39m
  • Radius: 97 meters
  • Data Points: 66 AIS positions
  • Centroid: 40.9516, 28.7315
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 96.599999999999994315658113919198513031005859375,
    "duration_minutes": 399,
    "points": 66,
    "centroid": {
        "lat": 40.95162749696968518264839076437056064605712890625,
        "lon": 28.731470957575755420521090854890644550323486328125
    },
    "bbox": {
        "min_lat": 40.95078670000000187201294465921819210052490234375,
        "min_lon": 28.73131169999999912079147179611027240753173828125,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.731763300000000782574716140516102313995361328125
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Sts Bosphorus/Dardanelles Approach
Sep 14, 2026 22:11 UTC 65/100 ▼
Vessel A: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
Vessel B: IMO 9258014 (NOSTOS) Liberia
  • Minimum Distance: 487 meters
  • Average Distance: 491 meters
  • Duration: 1h 24m
  • Period: 2026-09-14T22:11:37+00:00 to 2026-09-14T23:35:37+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 487m, avg 491m) for 84 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 487m, avg 491m
Duration15/25Duration 84 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "vessel_b": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "min_distance_m": 487.30000000000001136868377216160297393798828125,
    "avg_distance_m": 491,
    "distance_consistency_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 84,
    "overlap_duration_s": 5040,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-14T22:11:37+00:00",
        "end": "2026-09-14T23:35:37+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 487m, avg 491m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 84 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 487m, avg 491m) for 84 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus\/Dardanelles Approach, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 22:11 UTC 65/100 ▼
Vessel A: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
Vessel B: IMO 9258014 (NOSTOS) Liberia
  • Minimum Distance: 487 meters
  • Average Distance: 491 meters
  • Duration: 1h 24m
  • Period: 2026-09-14T22:11:37+00:00 to 2026-09-14T23:35:37+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 487m, avg 491m) for 84 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 487m, avg 491m
Duration15/25Duration 84 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "vessel_b": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "min_distance_m": 487.30000000000001136868377216160297393798828125,
    "avg_distance_m": 491,
    "distance_consistency_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 84,
    "overlap_duration_s": 5040,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-14T22:11:37+00:00",
        "end": "2026-09-14T23:35:37+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 487m, avg 491m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 84 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 487m, avg 491m) for 84 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 21:08 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 39m
  • Data Points: 64 AIS positions
  • Period: 2026-09-14T21:50:37+00:00 to 2026-09-15T04:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 399,
    "points_in_zone": 64,
    "first_point": {
        "ts": "2026-09-14T21:50:37+00:00",
        "lat": 40.95161329999999821893652551807463169097900390625,
        "lon": 28.73125329999999877372829359956085681915283203125
    },
    "last_point": {
        "ts": "2026-09-15T04:29:37+00:00",
        "lat": 40.95117499999999921556081972084939479827880859375,
        "lon": 28.73148330000000072459442890249192714691162109375
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 21:08 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 39m
  • Data Points: 64 AIS positions
  • Period: 2026-09-14T21:50:37+00:00 to 2026-09-15T04:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 399,
    "points_in_zone": 64,
    "first_point": {
        "ts": "2026-09-14T21:50:37+00:00",
        "lat": 40.95161329999999821893652551807463169097900390625,
        "lon": 28.73125329999999877372829359956085681915283203125
    },
    "last_point": {
        "ts": "2026-09-15T04:29:37+00:00",
        "lat": 40.95117499999999921556081972084939479827880859375,
        "lon": 28.73148330000000072459442890249192714691162109375
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 21:08 UTC 75.0% ▼
  • Duration: 6h 39m
  • Radius: 65 meters
  • Data Points: 64 AIS positions
  • Centroid: 40.9518, 28.7314
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 65.2000000000000028421709430404007434844970703125,
    "duration_minutes": 399,
    "points": 64,
    "centroid": {
        "lat": 40.95176153437500232712409342639148235321044921875,
        "lon": 28.731442054687509113364285440184175968170166015625
    },
    "bbox": {
        "min_lat": 40.95117499999999921556081972084939479827880859375,
        "min_lon": 28.73125329999999877372829359956085681915283203125,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.731628300000000564295987715013325214385986328125
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 21:08 UTC 75.0% ▼
  • Duration: 6h 39m
  • Radius: 65 meters
  • Data Points: 64 AIS positions
  • Centroid: 40.9518, 28.7314
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 65.2000000000000028421709430404007434844970703125,
    "duration_minutes": 399,
    "points": 64,
    "centroid": {
        "lat": 40.95176153437500232712409342639148235321044921875,
        "lon": 28.731442054687509113364285440184175968170166015625
    },
    "bbox": {
        "min_lat": 40.95117499999999921556081972084939479827880859375,
        "min_lon": 28.73125329999999877372829359956085681915283203125,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.731628300000000564295987715013325214385986328125
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 20:02 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 39m
  • Data Points: 59 AIS positions
  • Period: 2026-09-14T20:50:37+00:00 to 2026-09-15T03:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 399,
    "points_in_zone": 59,
    "first_point": {
        "ts": "2026-09-14T20:50:37+00:00",
        "lat": 40.95159000000000304453351418487727642059326171875,
        "lon": 28.731318300000001642047209315933287143707275390625
    },
    "last_point": {
        "ts": "2026-09-15T03:29:37+00:00",
        "lat": 40.9515549999999990404830896295607089996337890625,
        "lon": 28.731341700000001537773641757667064666748046875
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 20:02 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 39m
  • Data Points: 59 AIS positions
  • Period: 2026-09-14T20:50:37+00:00 to 2026-09-15T03:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 399,
    "points_in_zone": 59,
    "first_point": {
        "ts": "2026-09-14T20:50:37+00:00",
        "lat": 40.95159000000000304453351418487727642059326171875,
        "lon": 28.731318300000001642047209315933287143707275390625
    },
    "last_point": {
        "ts": "2026-09-15T03:29:37+00:00",
        "lat": 40.9515549999999990404830896295607089996337890625,
        "lon": 28.731341700000001537773641757667064666748046875
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 20:02 UTC 75.0% ▼
  • Duration: 6h 39m
  • Radius: 53 meters
  • Data Points: 59 AIS positions
  • Centroid: 40.9518, 28.7314
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 52.7000000000000028421709430404007434844970703125,
    "duration_minutes": 399,
    "points": 59,
    "centroid": {
        "lat": 40.9518222542372853922643116675317287445068359375,
        "lon": 28.731420361016954956312474678270518779754638671875
    },
    "bbox": {
        "min_lat": 40.95148830000000117479430628009140491485595703125,
        "min_lon": 28.731183300000001423768480890430510044097900390625,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.731628300000000564295987715013325214385986328125
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 20:02 UTC 75.0% ▼
  • Duration: 6h 39m
  • Radius: 53 meters
  • Data Points: 59 AIS positions
  • Centroid: 40.9518, 28.7314
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 52.7000000000000028421709430404007434844970703125,
    "duration_minutes": 399,
    "points": 59,
    "centroid": {
        "lat": 40.9518222542372853922643116675317287445068359375,
        "lon": 28.731420361016954956312474678270518779754638671875
    },
    "bbox": {
        "min_lat": 40.95148830000000117479430628009140491485595703125,
        "min_lon": 28.731183300000001423768480890430510044097900390625,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.731628300000000564295987715013325214385986328125
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Sts Bosphorus/Dardanelles Approach
Sep 14, 2026 19:50 UTC 55/100 ▼
Vessel A: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
Vessel B: IMO 9258014 (NOSTOS) Liberia
  • Minimum Distance: 480 meters
  • Average Distance: 490 meters
  • Duration: 39 minutes
  • Period: 2026-09-14T19:59:37+00:00 to 2026-09-14T20:38:37+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 480m, avg 490m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 480m, avg 490m
Duration5/25Duration 39 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "vessel_b": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "min_distance_m": 480,
    "avg_distance_m": 489.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 6.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 39,
    "overlap_duration_s": 2340,
    "speed_a_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.070000000000000006661338147750939242541790008544921875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.070000000000000006661338147750939242541790008544921875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-14T19:59:37+00:00",
        "end": "2026-09-14T20:38:37+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 480m, avg 490m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 39 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: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 480m, avg 490m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus\/Dardanelles Approach, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 19:50 UTC 55/100 ▼
Vessel A: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
Vessel B: IMO 9258014 (NOSTOS) Liberia
  • Minimum Distance: 480 meters
  • Average Distance: 490 meters
  • Duration: 39 minutes
  • Period: 2026-09-14T19:59:37+00:00 to 2026-09-14T20:38:37+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 480m, avg 490m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 480m, avg 490m
Duration5/25Duration 39 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "vessel_b": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "min_distance_m": 480,
    "avg_distance_m": 489.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 6.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 39,
    "overlap_duration_s": 2340,
    "speed_a_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.070000000000000006661338147750939242541790008544921875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.070000000000000006661338147750939242541790008544921875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-14T19:59:37+00:00",
        "end": "2026-09-14T20:38:37+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 480m, avg 490m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 39 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: Black Sea Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 480m, avg 490m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 19:02 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 36m
  • Data Points: 57 AIS positions
  • Period: 2026-09-14T19:41:37+00:00 to 2026-09-15T02:17:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 396,
    "points_in_zone": 57,
    "first_point": {
        "ts": "2026-09-14T19:41:37+00:00",
        "lat": 40.95135169999999646961441612802445888519287109375,
        "lon": 28.7312466999999998051862348802387714385986328125
    },
    "last_point": {
        "ts": "2026-09-15T02:17:37+00:00",
        "lat": 40.951948299999997971099219284951686859130859375,
        "lon": 28.731501699999999033252606750465929508209228515625
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 19:02 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 36m
  • Data Points: 57 AIS positions
  • Period: 2026-09-14T19:41:37+00:00 to 2026-09-15T02:17:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 396,
    "points_in_zone": 57,
    "first_point": {
        "ts": "2026-09-14T19:41:37+00:00",
        "lat": 40.95135169999999646961441612802445888519287109375,
        "lon": 28.7312466999999998051862348802387714385986328125
    },
    "last_point": {
        "ts": "2026-09-15T02:17:37+00:00",
        "lat": 40.951948299999997971099219284951686859130859375,
        "lon": 28.731501699999999033252606750465929508209228515625
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 19:02 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 63 meters
  • Data Points: 57 AIS positions
  • Centroid: 40.9518, 28.7314
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 63,
    "duration_minutes": 396,
    "points": 57,
    "centroid": {
        "lat": 40.9517531263157934517948888242244720458984375,
        "lon": 28.731372861403503549126980942673981189727783203125
    },
    "bbox": {
        "min_lat": 40.951196699999997008490026928484439849853515625,
        "min_lon": 28.731179999999998386783772730268537998199462890625,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.731616700000000008685674401931464672088623046875
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 19:02 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 63 meters
  • Data Points: 57 AIS positions
  • Centroid: 40.9518, 28.7314
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 63,
    "duration_minutes": 396,
    "points": 57,
    "centroid": {
        "lat": 40.9517531263157934517948888242244720458984375,
        "lon": 28.731372861403503549126980942673981189727783203125
    },
    "bbox": {
        "min_lat": 40.951196699999997008490026928484439849853515625,
        "min_lon": 28.731179999999998386783772730268537998199462890625,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.731616700000000008685674401931464672088623046875
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 18:05 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 36m
  • Data Points: 61 AIS positions
  • Period: 2026-09-14T18:50:37+00:00 to 2026-09-15T01:26:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 396,
    "points_in_zone": 61,
    "first_point": {
        "ts": "2026-09-14T18:50:37+00:00",
        "lat": 40.95134170000000040090526454150676727294921875,
        "lon": 28.73121330000000028803697205148637294769287109375
    },
    "last_point": {
        "ts": "2026-09-15T01:26:37+00:00",
        "lat": 40.95207669999999922083588899113237857818603515625,
        "lon": 28.731480000000001240323399542830884456634521484375
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 18:05 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 36m
  • Data Points: 61 AIS positions
  • Period: 2026-09-14T18:50:37+00:00 to 2026-09-15T01:26:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 396,
    "points_in_zone": 61,
    "first_point": {
        "ts": "2026-09-14T18:50:37+00:00",
        "lat": 40.95134170000000040090526454150676727294921875,
        "lon": 28.73121330000000028803697205148637294769287109375
    },
    "last_point": {
        "ts": "2026-09-15T01:26:37+00:00",
        "lat": 40.95207669999999922083588899113237857818603515625,
        "lon": 28.731480000000001240323399542830884456634521484375
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 18:05 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 70 meters
  • Data Points: 61 AIS positions
  • Centroid: 40.9517, 28.7313
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 70.099999999999994315658113919198513031005859375,
    "duration_minutes": 396,
    "points": 61,
    "centroid": {
        "lat": 40.95167666557376406899493304081261157989501953125,
        "lon": 28.731343277049173678960869438014924526214599609375
    },
    "bbox": {
        "min_lat": 40.951196699999997008490026928484439849853515625,
        "min_lon": 28.731179999999998386783772730268537998199462890625,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.731616700000000008685674401931464672088623046875
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 18:05 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 70 meters
  • Data Points: 61 AIS positions
  • Centroid: 40.9517, 28.7313
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 70.099999999999994315658113919198513031005859375,
    "duration_minutes": 396,
    "points": 61,
    "centroid": {
        "lat": 40.95167666557376406899493304081261157989501953125,
        "lon": 28.731343277049173678960869438014924526214599609375
    },
    "bbox": {
        "min_lat": 40.951196699999997008490026928484439849853515625,
        "min_lon": 28.731179999999998386783772730268537998199462890625,
        "max_lat": 40.9522850000000033787728170864284038543701171875,
        "max_lon": 28.731616700000000008685674401931464672088623046875
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 17:02 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 30m
  • Data Points: 66 AIS positions
  • Period: 2026-09-14T17:44:37+00:00 to 2026-09-15T00:14:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 390,
    "points_in_zone": 66,
    "first_point": {
        "ts": "2026-09-14T17:44:37+00:00",
        "lat": 40.951183299999996734186424873769283294677734375,
        "lon": 28.73133500000000140062184073030948638916015625
    },
    "last_point": {
        "ts": "2026-09-15T00:14:37+00:00",
        "lat": 40.9521232999999966750692692585289478302001953125,
        "lon": 28.731493300000000346017259289510548114776611328125
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 17:02 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 30m
  • Data Points: 66 AIS positions
  • Period: 2026-09-14T17:44:37+00:00 to 2026-09-15T00:14:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 390,
    "points_in_zone": 66,
    "first_point": {
        "ts": "2026-09-14T17:44:37+00:00",
        "lat": 40.951183299999996734186424873769283294677734375,
        "lon": 28.73133500000000140062184073030948638916015625
    },
    "last_point": {
        "ts": "2026-09-15T00:14:37+00:00",
        "lat": 40.9521232999999966750692692585289478302001953125,
        "lon": 28.731493300000000346017259289510548114776611328125
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 17:02 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 62 meters
  • Data Points: 66 AIS positions
  • Centroid: 40.9516, 28.7313
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 62.2000000000000028421709430404007434844970703125,
    "duration_minutes": 390,
    "points": 66,
    "centroid": {
        "lat": 40.95157795151514079634580411948263645172119140625,
        "lon": 28.731326133333329408969802898354828357696533203125
    },
    "bbox": {
        "min_lat": 40.951183299999996734186424873769283294677734375,
        "min_lon": 28.731179999999998386783772730268537998199462890625,
        "max_lat": 40.9521232999999966750692692585289478302001953125,
        "max_lon": 28.731493300000000346017259289510548114776611328125
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 17:02 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 62 meters
  • Data Points: 66 AIS positions
  • Centroid: 40.9516, 28.7313
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 62.2000000000000028421709430404007434844970703125,
    "duration_minutes": 390,
    "points": 66,
    "centroid": {
        "lat": 40.95157795151514079634580411948263645172119140625,
        "lon": 28.731326133333329408969802898354828357696533203125
    },
    "bbox": {
        "min_lat": 40.951183299999996734186424873769283294677734375,
        "min_lon": 28.731179999999998386783772730268537998199462890625,
        "max_lat": 40.9521232999999966750692692585289478302001953125,
        "max_lon": 28.731493300000000346017259289510548114776611328125
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 16:11 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 33m
  • Data Points: 65 AIS positions
  • Period: 2026-09-14T16:35:37+00:00 to 2026-09-14T23:08:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 393,
    "points_in_zone": 65,
    "first_point": {
        "ts": "2026-09-14T16:35:37+00:00",
        "lat": 40.94986829999999855544956517405807971954345703125,
        "lon": 28.732821699999998799057721043936908245086669921875
    },
    "last_point": {
        "ts": "2026-09-14T23:08:37+00:00",
        "lat": 40.9518417000000027883288566954433917999267578125,
        "lon": 28.73135500000000064346750150434672832489013671875
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 16:11 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 33m
  • Data Points: 65 AIS positions
  • Period: 2026-09-14T16:35:37+00:00 to 2026-09-14T23:08:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 393,
    "points_in_zone": 65,
    "first_point": {
        "ts": "2026-09-14T16:35:37+00:00",
        "lat": 40.94986829999999855544956517405807971954345703125,
        "lon": 28.732821699999998799057721043936908245086669921875
    },
    "last_point": {
        "ts": "2026-09-14T23:08:37+00:00",
        "lat": 40.9518417000000027883288566954433917999267578125,
        "lon": 28.73135500000000064346750150434672832489013671875
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 16:11 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 206 meters
  • Data Points: 65 AIS positions
  • Centroid: 40.9514, 28.7314
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 206,
    "duration_minutes": 393,
    "points": 65,
    "centroid": {
        "lat": 40.95138038153844917133028502576053142547607421875,
        "lon": 28.731405432307695946292369626462459564208984375
    },
    "bbox": {
        "min_lat": 40.94986829999999855544956517405807971954345703125,
        "min_lon": 28.731179999999998386783772730268537998199462890625,
        "max_lat": 40.95192999999999727833710494451224803924560546875,
        "max_lon": 28.732821699999998799057721043936908245086669921875
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 16:11 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 206 meters
  • Data Points: 65 AIS positions
  • Centroid: 40.9514, 28.7314
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 206,
    "duration_minutes": 393,
    "points": 65,
    "centroid": {
        "lat": 40.95138038153844917133028502576053142547607421875,
        "lon": 28.731405432307695946292369626462459564208984375
    },
    "bbox": {
        "min_lat": 40.94986829999999855544956517405807971954345703125,
        "min_lon": 28.731179999999998386783772730268537998199462890625,
        "max_lat": 40.95192999999999727833710494451224803924560546875,
        "max_lon": 28.732821699999998799057721043936908245086669921875
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 13:08 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 24m
  • Data Points: 34 AIS positions
  • Period: 2026-09-14T13:17:37+00:00 to 2026-09-14T19:41:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 384,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-09-14T13:17:37+00:00",
        "lat": 40.950074999999998226485331542789936065673828125,
        "lon": 28.734333299999999411511453217826783657073974609375
    },
    "last_point": {
        "ts": "2026-09-14T19:41:37+00:00",
        "lat": 40.95135169999999646961441612802445888519287109375,
        "lon": 28.7312466999999998051862348802387714385986328125
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 13:08 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 24m
  • Data Points: 34 AIS positions
  • Period: 2026-09-14T13:17:37+00:00 to 2026-09-14T19:41:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 384,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-09-14T13:17:37+00:00",
        "lat": 40.950074999999998226485331542789936065673828125,
        "lon": 28.734333299999999411511453217826783657073974609375
    },
    "last_point": {
        "ts": "2026-09-14T19:41:37+00:00",
        "lat": 40.95135169999999646961441612802445888519287109375,
        "lon": 28.7312466999999998051862348802387714385986328125
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 13:08 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 241 meters
  • Data Points: 34 AIS positions
  • Centroid: 40.9510, 28.7317
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 240.900000000000005684341886080801486968994140625,
    "duration_minutes": 384,
    "points": 34,
    "centroid": {
        "lat": 40.9509640676470638709361082874238491058349609375,
        "lon": 28.731723673529412366178803495131433010101318359375
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.73121330000000028803697205148637294769287109375,
        "max_lat": 40.9515482999999989033312886022031307220458984375,
        "max_lon": 28.734333299999999411511453217826783657073974609375
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 13:08 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 241 meters
  • Data Points: 34 AIS positions
  • Centroid: 40.9510, 28.7317
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 240.900000000000005684341886080801486968994140625,
    "duration_minutes": 384,
    "points": 34,
    "centroid": {
        "lat": 40.9509640676470638709361082874238491058349609375,
        "lon": 28.731723673529412366178803495131433010101318359375
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.73121330000000028803697205148637294769287109375,
        "max_lat": 40.9515482999999989033312886022031307220458984375,
        "max_lon": 28.734333299999999411511453217826783657073974609375
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Sts🛰️✗ Bosphorus/Dardanelles Approach
Sep 14, 2026 12:32 UTC 60/100 ▼
Vessel A: IMO 9258014 (NOSTOS) Liberia
Vessel B: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
  • Minimum Distance: 335 meters
  • Average Distance: 372 meters
  • Duration: 39 minutes
  • Period: 2026-09-14T12:32:21+00:00 to 2026-09-14T13:11:18+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 335m, avg 372m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 335m, avg 372m
Duration5/25Duration 39 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±22m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Bosphorus/Dardanelles Approach

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-09-14T13:30:01.325160+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "min_distance_m": 335,
    "avg_distance_m": 372.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 21.800000000000000710542735760100185871124267578125,
    "duration_minutes": 39,
    "overlap_duration_s": 2337,
    "speed_a_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_a_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_b_avg": 0.13000000000000000444089209850062616169452667236328125,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.13000000000000000444089209850062616169452667236328125,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-09-14T12:32:21+00:00",
        "end": "2026-09-14T13:11:18+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 335m, avg 372m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 39 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b122m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 335m, avg 372m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus\/Dardanelles Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 40.9497506000000015546902432106435298919677734375,
            "lon": 28.737057400000001194939613924361765384674072265625
        },
        "time_window": {
            "start_ts": "2026-09-14T12:32:21+00:00",
            "end_ts": "2026-09-14T13:11:18+00:00"
        },
        "searched_at": "2026-09-14T13:30:01.325160+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 12:32 UTC 60/100 ▼
Vessel A: IMO 9258014 (NOSTOS) Liberia
Vessel B: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
  • Minimum Distance: 335 meters
  • Average Distance: 372 meters
  • Duration: 39 minutes
  • Period: 2026-09-14T12:32:21+00:00 to 2026-09-14T13:11:18+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 335m, avg 372m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 335m, avg 372m
Duration5/25Duration 39 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±22m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Black Sea 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: 2026-09-14T13:30:04.425810+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "min_distance_m": 335,
    "avg_distance_m": 372.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 21.800000000000000710542735760100185871124267578125,
    "duration_minutes": 39,
    "overlap_duration_s": 2337,
    "speed_a_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_a_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_b_avg": 0.13000000000000000444089209850062616169452667236328125,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.13000000000000000444089209850062616169452667236328125,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-09-14T12:32:21+00:00",
        "end": "2026-09-14T13:11:18+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 335m, avg 372m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 39 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b122m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 335m, avg 372m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 40.9497506000000015546902432106435298919677734375,
            "lon": 28.737057400000001194939613924361765384674072265625
        },
        "time_window": {
            "start_ts": "2026-09-14T12:32:21+00:00",
            "end_ts": "2026-09-14T13:11:18+00:00"
        },
        "searched_at": "2026-09-14T13:30:04.425810+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 12:05 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 27m
  • Data Points: 32 AIS positions
  • Period: 2026-09-14T12:59:37+00:00 to 2026-09-14T19:26:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 387,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-09-14T12:59:37+00:00",
        "lat": 40.95010500000000064346750150434672832489013671875,
        "lon": 28.734841700000000486170392832718789577484130859375
    },
    "last_point": {
        "ts": "2026-09-14T19:26:37+00:00",
        "lat": 40.951543299999997316263034008443355560302734375,
        "lon": 28.731275000000000119371179607696831226348876953125
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 12:05 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 27m
  • Data Points: 32 AIS positions
  • Period: 2026-09-14T12:59:37+00:00 to 2026-09-14T19:26:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 387,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-09-14T12:59:37+00:00",
        "lat": 40.95010500000000064346750150434672832489013671875,
        "lon": 28.734841700000000486170392832718789577484130859375
    },
    "last_point": {
        "ts": "2026-09-14T19:26:37+00:00",
        "lat": 40.951543299999997316263034008443355560302734375,
        "lon": 28.731275000000000119371179607696831226348876953125
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 12:05 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 256 meters
  • Data Points: 32 AIS positions
  • Centroid: 40.9509, 28.7320
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 255.69999999999998863131622783839702606201171875,
    "duration_minutes": 387,
    "points": 32,
    "centroid": {
        "lat": 40.9508534843750027221176424063742160797119140625,
        "lon": 28.731970100000001622220224817283451557159423828125
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.73121330000000028803697205148637294769287109375,
        "max_lat": 40.9515482999999989033312886022031307220458984375,
        "max_lon": 28.734841700000000486170392832718789577484130859375
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 12:05 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 256 meters
  • Data Points: 32 AIS positions
  • Centroid: 40.9509, 28.7320
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 255.69999999999998863131622783839702606201171875,
    "duration_minutes": 387,
    "points": 32,
    "centroid": {
        "lat": 40.9508534843750027221176424063742160797119140625,
        "lon": 28.731970100000001622220224817283451557159423828125
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.73121330000000028803697205148637294769287109375,
        "max_lat": 40.9515482999999989033312886022031307220458984375,
        "max_lon": 28.734841700000000486170392832718789577484130859375
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Sts Bosphorus/Dardanelles Approach
Sep 14, 2026 11:35 UTC 80/100 ▼
Vessel A: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
Vessel B: IMO 9258014 (NOSTOS) Liberia
  • Minimum Distance: 352 meters
  • Average Distance: 391 meters
  • Duration: 4h 36m
  • Period: 2026-09-14T11:35:37+00:00 to 2026-09-14T16:11:37+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 352m, avg 391m) for 276 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 352m, avg 391m
Duration25/25Duration 276 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±24m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "vessel_b": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "min_distance_m": 351.80000000000001136868377216160297393798828125,
    "avg_distance_m": 390.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 24,
    "duration_minutes": 276,
    "overlap_duration_s": 16560,
    "speed_a_avg": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-09-14T11:35:37+00:00",
        "end": "2026-09-14T16:11:37+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 352m, avg 391m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 276 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b124m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 352m, avg 391m) for 276 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus\/Dardanelles Approach, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 11:35 UTC 80/100 ▼
Vessel A: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
Vessel B: IMO 9258014 (NOSTOS) Liberia
  • Minimum Distance: 352 meters
  • Average Distance: 391 meters
  • Duration: 4h 36m
  • Period: 2026-09-14T11:35:37+00:00 to 2026-09-14T16:11:37+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 352m, avg 391m) for 276 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 352m, avg 391m
Duration25/25Duration 276 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±24m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "vessel_b": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "min_distance_m": 351.80000000000001136868377216160297393798828125,
    "avg_distance_m": 390.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 24,
    "duration_minutes": 276,
    "overlap_duration_s": 16560,
    "speed_a_avg": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-09-14T11:35:37+00:00",
        "end": "2026-09-14T16:11:37+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 352m, avg 391m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 276 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b124m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MANTA BEYLERBEYI and NOSTOS) maintained close proximity (min 352m, avg 391m) for 276 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 11:02 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 36m
  • Data Points: 27 AIS positions
  • Period: 2026-09-14T11:53:37+00:00 to 2026-09-14T18:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 396,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-09-14T11:53:37+00:00",
        "lat": 40.95023830000000231166268349625170230865478515625,
        "lon": 28.735223300000001245280145667493343353271484375
    },
    "last_point": {
        "ts": "2026-09-14T18:29:37+00:00",
        "lat": 40.951335000000000263753463514149188995361328125,
        "lon": 28.731328300000001263470039702951908111572265625
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 11:02 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 36m
  • Data Points: 27 AIS positions
  • Period: 2026-09-14T11:53:37+00:00 to 2026-09-14T18:29:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 396,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-09-14T11:53:37+00:00",
        "lat": 40.95023830000000231166268349625170230865478515625,
        "lon": 28.735223300000001245280145667493343353271484375
    },
    "last_point": {
        "ts": "2026-09-14T18:29:37+00:00",
        "lat": 40.951335000000000263753463514149188995361328125,
        "lon": 28.731328300000001263470039702951908111572265625
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 11:02 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 206 meters
  • Data Points: 27 AIS positions
  • Centroid: 40.9505, 28.7328
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 205.599999999999994315658113919198513031005859375,
    "duration_minutes": 396,
    "points": 27,
    "centroid": {
        "lat": 40.95053554814814589235538733191788196563720703125,
        "lon": 28.732812770370369293004841892980039119720458984375
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.731306700000001086436896002851426601409912109375,
        "max_lat": 40.951335000000000263753463514149188995361328125,
        "max_lon": 28.735223300000001245280145667493343353271484375
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 11:02 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 206 meters
  • Data Points: 27 AIS positions
  • Centroid: 40.9505, 28.7328
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 205.599999999999994315658113919198513031005859375,
    "duration_minutes": 396,
    "points": 27,
    "centroid": {
        "lat": 40.95053554814814589235538733191788196563720703125,
        "lon": 28.732812770370369293004841892980039119720458984375
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.731306700000001086436896002851426601409912109375,
        "max_lat": 40.951335000000000263753463514149188995361328125,
        "max_lon": 28.735223300000001245280145667493343353271484375
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Sts🛰️✗ Bosphorus/Dardanelles Approach
Sep 14, 2026 10:17 UTC 75/100 ▼
Vessel A: IMO 9258014 (NOSTOS) Liberia
Vessel B: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
  • Minimum Distance: 370 meters
  • Average Distance: 401 meters
  • Duration: 1h 54m
  • Period: 2026-09-14T10:17:21+00:00 to 2026-09-14T12:11:19+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 370m, avg 400m) for 114 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 370m, avg 400m
Duration20/25Duration 114 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±23m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Bosphorus/Dardanelles Approach

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-09-14T16:30:02.124405+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "min_distance_m": 369.69999999999998863131622783839702606201171875,
    "avg_distance_m": 400.5,
    "distance_consistency_m": 23.199999999999999289457264239899814128875732421875,
    "duration_minutes": 114,
    "overlap_duration_s": 6838,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-14T10:17:21+00:00",
        "end": "2026-09-14T12:11:19+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 370m, avg 400m"
            },
            "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 \u00b123m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 370m, avg 400m) for 114 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus\/Dardanelles Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 40.9498224000000021760570234619081020355224609375,
            "lon": 28.73744190000000031659510568715631961822509765625
        },
        "time_window": {
            "start_ts": "2026-09-14T10:17:21+00:00",
            "end_ts": "2026-09-14T12:11:19+00:00"
        },
        "searched_at": "2026-09-14T16:30:02.124405+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 10:17 UTC 75/100 ▼
Vessel A: IMO 9258014 (NOSTOS) Liberia
Vessel B: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
  • Minimum Distance: 370 meters
  • Average Distance: 401 meters
  • Duration: 1h 54m
  • Period: 2026-09-14T10:17:21+00:00 to 2026-09-14T12:11:19+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 370m, avg 400m) for 114 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 370m, avg 400m
Duration20/25Duration 114 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±23m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Black Sea 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: 2026-09-14T16:30:04.815025+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "min_distance_m": 369.69999999999998863131622783839702606201171875,
    "avg_distance_m": 400.5,
    "distance_consistency_m": 23.199999999999999289457264239899814128875732421875,
    "duration_minutes": 114,
    "overlap_duration_s": 6838,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-14T10:17:21+00:00",
        "end": "2026-09-14T12:11:19+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 370m, avg 400m"
            },
            "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 \u00b123m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 370m, avg 400m) for 114 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 40.9498224000000021760570234619081020355224609375,
            "lon": 28.73744190000000031659510568715631961822509765625
        },
        "time_window": {
            "start_ts": "2026-09-14T10:17:21+00:00",
            "end_ts": "2026-09-14T12:11:19+00:00"
        },
        "searched_at": "2026-09-14T16:30:04.815025+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 10:02 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 6h 27m
  • Data Points: 27 AIS positions
  • Period: 2026-09-14T10:56:37+00:00 to 2026-09-14T17:23:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 387,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-09-14T10:56:37+00:00",
        "lat": 40.9503600000000034242475521750748157501220703125,
        "lon": 28.735183299999999206875145318917930126190185546875
    },
    "last_point": {
        "ts": "2026-09-14T17:23:37+00:00",
        "lat": 40.95079170000000345908119925297796726226806640625,
        "lon": 28.73153500000000093450580607168376445770263671875
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 10:02 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 6h 27m
  • Data Points: 27 AIS positions
  • Period: 2026-09-14T10:56:37+00:00 to 2026-09-14T17:23:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 387,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-09-14T10:56:37+00:00",
        "lat": 40.9503600000000034242475521750748157501220703125,
        "lon": 28.735183299999999206875145318917930126190185546875
    },
    "last_point": {
        "ts": "2026-09-14T17:23:37+00:00",
        "lat": 40.95079170000000345908119925297796726226806640625,
        "lon": 28.73153500000000093450580607168376445770263671875
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 10:02 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 225 meters
  • Data Points: 27 AIS positions
  • Centroid: 40.9502, 28.7341
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 225.30000000000001136868377216160297393798828125,
    "duration_minutes": 387,
    "points": 27,
    "centroid": {
        "lat": 40.95022795555555461533003835938870906829833984375,
        "lon": 28.734105862962966426721322932280600070953369140625
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.73153500000000093450580607168376445770263671875,
        "max_lat": 40.95079170000000345908119925297796726226806640625,
        "max_lon": 28.7352767000000000052750692702829837799072265625
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 10:02 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 225 meters
  • Data Points: 27 AIS positions
  • Centroid: 40.9502, 28.7341
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 225.30000000000001136868377216160297393798828125,
    "duration_minutes": 387,
    "points": 27,
    "centroid": {
        "lat": 40.95022795555555461533003835938870906829833984375,
        "lon": 28.734105862962966426721322932280600070953369140625
    },
    "bbox": {
        "min_lat": 40.9497532999999975800164975225925445556640625,
        "min_lon": 28.73153500000000093450580607168376445770263671875,
        "max_lat": 40.95079170000000345908119925297796726226806640625,
        "max_lon": 28.7352767000000000052750692702829837799072265625
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Sts Bosphorus/Dardanelles Approach
Sep 14, 2026 09:41 UTC 77/100 ▼
Vessel A: IMO 9258014 (NOSTOS) Liberia
Vessel B: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
  • Minimum Distance: 370 meters
  • Average Distance: 414 meters
  • Duration: 2h 30m
  • Period: 2026-09-14T09:41:18+00:00 to 2026-09-14T12:11:19+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 77/100

Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 370m, avg 414m) for 150 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 370m, avg 414m
Duration25/25Duration 150 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency12/15Distance variance ±35m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "min_distance_m": 369.69999999999998863131622783839702606201171875,
    "avg_distance_m": 413.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 35,
    "duration_minutes": 150,
    "overlap_duration_s": 9001,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.11000000000000000055511151231257827021181583404541015625,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.11000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-09-14T09:41:18+00:00",
        "end": "2026-09-14T12:11:19+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 77,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 370m, avg 414m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 150 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b135m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 370m, avg 414m) for 150 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus\/Dardanelles Approach, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 09:41 UTC 77/100 ▼
Vessel A: IMO 9258014 (NOSTOS) Liberia
Vessel B: IMO 9543079 (MANTA BEYLERBEYI) PANAMA
  • Minimum Distance: 370 meters
  • Average Distance: 414 meters
  • Duration: 2h 30m
  • Period: 2026-09-14T09:41:18+00:00 to 2026-09-14T12:11:19+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone

Confidence Analysis

Score: 77/100

Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 370m, avg 414m) for 150 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 370m, avg 414m
Duration25/25Duration 150 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency12/15Distance variance ±35m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636019667,
        "imo": 9258014,
        "name": "NOSTOS",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 352005974,
        "imo": 9543079,
        "name": "MANTA BEYLERBEYI",
        "flag": "PANAMA"
    },
    "min_distance_m": 369.69999999999998863131622783839702606201171875,
    "avg_distance_m": 413.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 35,
    "duration_minutes": 150,
    "overlap_duration_s": 9001,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0.11000000000000000055511151231257827021181583404541015625,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.11000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-09-14T09:41:18+00:00",
        "end": "2026-09-14T12:11:19+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "score": {
        "value": 77,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 370m, avg 414m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 150 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b135m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Black Sea Sanctioned Vessel Monitoring Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (NOSTOS and MANTA BEYLERBEYI) maintained close proximity (min 370m, avg 414m) for 150 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Black Sea Sanctioned Vessel Monitoring Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 09:13 UTC 80.0% ▼
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
  • Duration: 4h 4m
  • Data Points: 32 AIS positions
  • Period: 2026-09-14T09:13:07+00:00 to 2026-09-14T13:17:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_028",
    "zone_name": "Black Sea Sanctioned Vessel Monitoring Zone",
    "dwell_minutes": 244.5,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-09-14T09:13:07+00:00",
        "lat": 40.94281670000000161735442816279828548431396484375,
        "lon": 28.73543000000000091631591203622519969940185546875
    },
    "last_point": {
        "ts": "2026-09-14T13:17:37+00:00",
        "lat": 40.950074999999998226485331542789936065673828125,
        "lon": 28.734333299999999411511453217826783657073974609375
    }
}
Methodology: 2026.01.18
Loiter Bosphorus/Dardanelles Approach
Sep 14, 2026 09:04 UTC 75.0% ▼
  • Duration: 4h 13m
  • Radius: 1,206 meters
  • Data Points: 34 AIS positions
  • Centroid: 40.9490, 28.7350
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 1206.299999999999954525264911353588104248046875,
    "duration_minutes": 253.19999999999998863131622783839702606201171875,
    "points": 34,
    "centroid": {
        "lat": 40.94901475294117432213170104660093784332275390625,
        "lon": 28.735007058823526904234313406050205230712890625
    },
    "bbox": {
        "min_lat": 40.9381800000000026784618967212736606597900390625,
        "min_lon": 28.7335183000000000674845068715512752532958984375,
        "max_lat": 40.95060500000000303089109365828335285186767578125,
        "max_lon": 28.7360366999999996551196090877056121826171875
    },
    "zone_id": "osint_bosphorus"
}
Methodology: 2026.01.18
Loiter Black Sea Sanctioned Vessel Monitoring Zone
Sep 14, 2026 09:04 UTC 75.0% ▼
  • Duration: 4h 13m
  • Radius: 1,206 meters
  • Data Points: 34 AIS positions
  • Centroid: 40.9490, 28.7350
  • Zone: Black Sea Sanctioned Vessel Monitoring Zone
Show Raw Evidence JSON
{
    "radius_m": 1206.299999999999954525264911353588104248046875,
    "duration_minutes": 253.19999999999998863131622783839702606201171875,
    "points": 34,
    "centroid": {
        "lat": 40.94901475294117432213170104660093784332275390625,
        "lon": 28.735007058823526904234313406050205230712890625
    },
    "bbox": {
        "min_lat": 40.9381800000000026784618967212736606597900390625,
        "min_lon": 28.7335183000000000674845068715512752532958984375,
        "max_lat": 40.95060500000000303089109365828335285186767578125,
        "max_lon": 28.7360366999999996551196090877056121826171875
    },
    "zone_id": "discovered_028"
}
Methodology: 2026.01.18
Zone Dwell Bosphorus/Dardanelles Approach
Sep 14, 2026 09:04 UTC 80.0% ▼
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 4h 13m
  • Data Points: 34 AIS positions
  • Period: 2026-09-14T09:04:27+00:00 to 2026-09-14T13:17:37+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 253.19999999999998863131622783839702606201171875,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-09-14T09:04:27+00:00",
        "lat": 40.9381800000000026784618967212736606597900390625,
        "lon": 28.7360366999999996551196090877056121826171875
    },
    "last_point": {
        "ts": "2026-09-14T13:17:37+00:00",
        "lat": 40.950074999999998226485331542789936065673828125,
        "lon": 28.734333299999999411511453217826783657073974609375
    }
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Sep 15 12:44 40.9499 28.7318 0.3 kn 252.3° Bosphorus/Dardanelles Approach
Sep 15 12:41 40.9499 28.7319 0.1 kn 238.8° Bosphorus/Dardanelles Approach
Sep 15 12:38 40.9499 28.7319 0.1 kn 262.6° Bosphorus/Dardanelles Approach
Sep 15 12:29 40.9499 28.7319 0.1 kn 190.9° Bosphorus/Dardanelles Approach
Sep 15 12:17 40.9501 28.7315 0.2 kn 191.3° Bosphorus/Dardanelles Approach
Sep 15 12:14 40.9502 28.7315 0.1 kn 161.0° Bosphorus/Dardanelles Approach
Sep 15 12:11 40.9502 28.7315 0.0 kn 111.0° Bosphorus/Dardanelles Approach
Sep 15 12:08 40.9502 28.7315 0.1 kn 336.7° Bosphorus/Dardanelles Approach
Sep 15 12:05 40.9501 28.7315 0.2 kn 330.8° Bosphorus/Dardanelles Approach
Sep 15 12:02 40.9501 28.7315 0.1 kn 296.3° Bosphorus/Dardanelles Approach
Sep 15 11:59 40.9501 28.7316 0.1 kn 275.7° Bosphorus/Dardanelles Approach
Sep 15 11:56 40.9501 28.7316 0.1 kn 177.2° Bosphorus/Dardanelles Approach
Sep 15 11:47 40.9502 28.7314 0.0 kn 184.4° Bosphorus/Dardanelles Approach
Sep 15 11:41 40.9502 28.7315 0.2 kn 327.2° Bosphorus/Dardanelles Approach
Sep 15 11:38 40.9501 28.7315 0.0 kn 351.1° Bosphorus/Dardanelles Approach
Sep 15 11:26 40.9498 28.7320 0.2 kn 321.7° Bosphorus/Dardanelles Approach
Sep 15 11:23 40.9497 28.7321 0.3 kn 292.4° Bosphorus/Dardanelles Approach
Sep 15 11:20 40.9497 28.7324 0.2 kn 269.4° Bosphorus/Dardanelles Approach
Sep 15 11:17 40.9497 28.7325 0.2 kn 293.3° Bosphorus/Dardanelles Approach
Sep 15 11:14 40.9496 28.7327 0.2 kn 325.6° Bosphorus/Dardanelles Approach

Showing 20 of 100 recent positions.

Data Source

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

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