Gogland

IMO 9430210

Vessel information

Vessel Name Gogland View name history 📜
IMO Number 9430210
MMSI 613511200
Vessel Type Chemical/Products Tanker | Transporteur de produits chimiques
Flag 🇨🇲 Cameroon View flag history 📜
Call Sign TJMX8
Gross Tonnage 3,568 GT
Year Built 2018

Sanctioned by

🇪🇺 EU 2025-07-18🇬🇧 UK 2025-06-17🇨🇦 CA 2026-02-19

Company & Ownership

🏢
Silverina Holding SA
IMO Company: 6030381
Address C/O: Staksel Co Ltd Room 1, ul M Gorkogo 78B, Samara, 443099, Russia.
Status Active
Fleet 1.0 owner, 0.0 operator, 0.0 manager, 0.0 beneficial

Management & Operations

ISM Manager
UNKNOWN
Unknown
Commercial Manager
RPTD SOLD UNDISCLOSED INTEREST
Room 1, ul M Gorkogo 78B, Samara, 443099, Russia.
Registered Owner
SILVERINA HOLDING SA
Unknown

Classification & Safety

Current Classification
International Register of Shipping (IS) Delivered

Port State Control (PSC) Inspections

⚠️
Risk Level
LOW
Last 36 Months
2
Inspections
Last Inspection
📍 Kocaeli
📅 2026-03-23

Programs & Notes

EU Russia Sanctions – Shadow Fleet | SEMA (Canada) — vessel designations | The Russia (Sanctions) (EU Exit) Regulations 2019

DateOfListing: 2025-07-20 || DateDesignated: 2025-06-17 | Shipping sanctions: (see “Other information”) | Shipping sanctions: a specified ship is prohibited from being provided with access to or having its master or pilot cause it to enter a port in the UK, may have its registration on the UK Ship Register terminated, and a master or pilot of a specified ship may be given a port barring direction, a detention direction, and a port entry direction or a movement direction. | IMO 9430210 (“GOGLAND”) is involved in activity whose object or effect is to destabilise Ukraine or undermine or threaten the territorial integrity, sovereignty or independence of Ukraine or to obtain a benefit from or support the Government of Russia. Namely, GOGLAND is involved in carrying oil or oil products that originated in Russia from Russia to a third country.

Vessel Changes

7 changes

AIS Events

14 events detected • 1 zone • Last: Jul 12, 2026

Sts🛰️✗ Bosphorus/Dardanelles Approach Jul 12, 2026 03:23 UTC 55/100
Vessel A: Gogland (GOGLAND) Cameroon
Vessel B: IMO 9285184 (SPECIALITY) MARSHALL ISLANDS
  • Minimum Distance: 436 meters
  • Average Distance: 438 meters
  • Duration: 36 minutes
  • Period: 2026-07-12T03:23:27+00:00 to 2026-07-12T03:59:26+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 (GOGLAND and SPECIALITY) maintained close proximity (min 436m, avg 438m) for 36 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 436m, avg 438m
Duration5/25Duration 36 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: 2026-07-12T09:30:11.404522+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613511200,
        "imo": 9430210,
        "name": "GOGLAND",
        "flag": "Cameroon"
    },
    "vessel_b": {
        "mmsi": 538012606,
        "imo": 9285184,
        "name": "SPECIALITY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 435.6000000000000227373675443232059478759765625,
    "avg_distance_m": 438.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 36,
    "overlap_duration_s": 2159,
    "speed_a_avg": 0.070000000000000006661338147750939242541790008544921875,
    "speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_b_std": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.070000000000000006661338147750939242541790008544921875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.1000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-07-12T03:23:27+00:00",
        "end": "2026-07-12T03:59:26+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 436m, avg 438m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 36 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 (GOGLAND and SPECIALITY) maintained close proximity (min 436m, avg 438m) for 36 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": 40.96251300000000128420651890337467193603515625,
            "lon": 28.766471100000000404861566494219005107879638671875
        },
        "time_window": {
            "start_ts": "2026-07-12T03:23:27+00:00",
            "end_ts": "2026-07-12T03:59:26+00:00"
        },
        "searched_at": "2026-07-12T09:30:11.404522+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Bosphorus/Dardanelles Approach Jul 12, 2026 02:47 UTC 65/100
Vessel A: Gogland (GOGLAND) Cameroon
Vessel B: IMO 9285184 (SPECIALITY) MARSHALL ISLANDS
  • Minimum Distance: 436 meters
  • Average Distance: 438 meters
  • Duration: 1h 12m
  • Period: 2026-07-12T02:47:28+00:00 to 2026-07-12T03:59:26+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 (GOGLAND and SPECIALITY) maintained close proximity (min 436m, avg 438m) for 72 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 436m, avg 438m
Duration15/25Duration 72 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: 2026-07-12T09:15:01.829555+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613511200,
        "imo": 9430210,
        "name": "GOGLAND",
        "flag": "Cameroon"
    },
    "vessel_b": {
        "mmsi": 538012606,
        "imo": 9285184,
        "name": "SPECIALITY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 435.6000000000000227373675443232059478759765625,
    "avg_distance_m": 437.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 72,
    "overlap_duration_s": 4318,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_b_std": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.08000000000000000166533453693773481063544750213623046875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-07-12T02:47:28+00:00",
        "end": "2026-07-12T03:59:26+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 436m, avg 438m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 72 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "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 (GOGLAND and SPECIALITY) maintained close proximity (min 436m, avg 438m) for 72 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": 40.9625089000000031091985874809324741363525390625,
            "lon": 28.766482700000000960471879807300865650177001953125
        },
        "time_window": {
            "start_ts": "2026-07-12T02:47:28+00:00",
            "end_ts": "2026-07-12T03:59:26+00:00"
        },
        "searched_at": "2026-07-12T09:15:01.829555+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Zone Dwell Bosphorus/Dardanelles Approach Jul 12, 2026 02:35 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 1h 24m
  • Data Points: 5 AIS positions
  • Period: 2026-07-12T02:35:27+00:00 to 2026-07-12T03:59:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 84,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-07-12T02:35:27+00:00",
        "lat": 40.96204829999999930123522062785923480987548828125,
        "lon": 28.764050000000001006128513836301863193511962890625
    },
    "last_point": {
        "ts": "2026-07-12T03:59:26+00:00",
        "lat": 40.962033300000001645457814447581768035888671875,
        "lon": 28.763948299999999136389305931515991687774658203125
    }
}

Methodology: 2026.01.18

Sts Bosphorus/Dardanelles Approach Jul 12, 2026 01:41 UTC 75/100
Vessel A: Gogland (GOGLAND) Cameroon
Vessel B: IMO 9285184 (SPECIALITY) MARSHALL ISLANDS
  • Minimum Distance: 429 meters
  • Average Distance: 438 meters
  • Duration: 2h 18m
  • Period: 2026-07-12T01:41:28+00:00 to 2026-07-12T03:59:26+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GOGLAND and SPECIALITY) maintained close proximity (min 429m, avg 438m) for 138 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 429m, avg 438m
Duration25/25Duration 138 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": 613511200,
        "imo": 9430210,
        "name": "GOGLAND",
        "flag": "Cameroon"
    },
    "vessel_b": {
        "mmsi": 538012606,
        "imo": 9285184,
        "name": "SPECIALITY",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 428.8999999999999772626324556767940521240234375,
    "avg_distance_m": 438.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 5.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 138,
    "overlap_duration_s": 8278,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_std": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-07-12T01:41:28+00:00",
        "end": "2026-07-12T03:59:26+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 429m, avg 438m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 138 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "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 (GOGLAND and SPECIALITY) maintained close proximity (min 429m, avg 438m) for 138 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus\/Dardanelles Approach, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Bosphorus/Dardanelles Approach Jul 12, 2026 01:11 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 2h 48m
  • Data Points: 8 AIS positions
  • Period: 2026-07-12T01:11:28+00:00 to 2026-07-12T03:59:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 168,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-07-12T01:11:28+00:00",
        "lat": 40.961956700000001774242264218628406524658203125,
        "lon": 28.76395169999999978927007759921252727508544921875
    },
    "last_point": {
        "ts": "2026-07-12T03:59:26+00:00",
        "lat": 40.962033300000001645457814447581768035888671875,
        "lon": 28.763948299999999136389305931515991687774658203125
    }
}

Methodology: 2026.01.18

Sts Bosphorus/Dardanelles Approach Jul 12, 2026 00:45 UTC 65/100
Vessel A: IMO 9285184 (SPECIALITY) MARSHALL ISLANDS
Vessel B: Gogland (GOGLAND) Cameroon
  • Minimum Distance: 419 meters
  • Average Distance: 435 meters
  • Duration: 1h 6m
  • Period: 2026-07-12T00:45:03+00:00 to 2026-07-12T01:51:33+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (SPECIALITY and GOGLAND) maintained close proximity (min 419m, avg 435m) for 66 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 419m, avg 435m
Duration15/25Duration 66 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±14m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538012606,
        "imo": 9285184,
        "name": "SPECIALITY",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 613511200,
        "imo": 9430210,
        "name": "GOGLAND",
        "flag": "Cameroon"
    },
    "min_distance_m": 419.19999999999998863131622783839702606201171875,
    "avg_distance_m": 434.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 13.5,
    "duration_minutes": 66.5,
    "overlap_duration_s": 3990,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-12T00:45:03+00:00",
        "end": "2026-07-12T01:51:33+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 419m, avg 435m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 66 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b114m"
            },
            "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 (SPECIALITY and GOGLAND) maintained close proximity (min 419m, avg 435m) for 66 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

Loiter Bosphorus/Dardanelles Approach Jul 12, 2026 00:11 UTC 75.0%
  • Duration: 3h 48m
  • Radius: 20 meters
  • Data Points: 13 AIS positions
  • Centroid: 40.9620, 28.7640
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 19.699999999999999289457264239899814128875732421875,
    "duration_minutes": 228,
    "points": 13,
    "centroid": {
        "lat": 40.962042053846147382500930689275264739990234375,
        "lon": 28.76400575384615621032935450784862041473388671875
    },
    "bbox": {
        "min_lat": 40.9619382999999999128704075701534748077392578125,
        "min_lon": 28.763850000000001472244548494927585124969482421875,
        "max_lat": 40.9621633000000002766682882793247699737548828125,
        "max_lon": 28.7641883000000007086782716214656829833984375
    },
    "zone_id": "osint_bosphorus"
}

Methodology: 2026.01.18

Zone Dwell Bosphorus/Dardanelles Approach Jul 12, 2026 00:11 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 3h 48m
  • Data Points: 13 AIS positions
  • Period: 2026-07-12T00:11:28+00:00 to 2026-07-12T03:59:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 228,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-07-12T00:11:28+00:00",
        "lat": 40.962136700000002065280568785965442657470703125,
        "lon": 28.7641883000000007086782716214656829833984375
    },
    "last_point": {
        "ts": "2026-07-12T03:59:26+00:00",
        "lat": 40.962033300000001645457814447581768035888671875,
        "lon": 28.763948299999999136389305931515991687774658203125
    }
}

Methodology: 2026.01.18

Loiter Bosphorus/Dardanelles Approach Jul 11, 2026 23:11 UTC 75.0%
  • Duration: 4h 48m
  • Radius: 51 meters
  • Data Points: 14 AIS positions
  • Centroid: 40.9621, 28.7640
  • Zone: Bosphorus/Dardanelles Approach
Show Raw Evidence JSON
{
    "radius_m": 50.5,
    "duration_minutes": 288,
    "points": 14,
    "centroid": {
        "lat": 40.96206988571429263856771285645663738250732421875,
        "lon": 28.764033678571426122516641044057905673980712890625
    },
    "bbox": {
        "min_lat": 40.9619382999999999128704075701534748077392578125,
        "min_lon": 28.763850000000001472244548494927585124969482421875,
        "max_lat": 40.96243170000000333175194100476801395416259765625,
        "max_lon": 28.76439669999999892979758442379534244537353515625
    },
    "zone_id": "osint_bosphorus"
}

Methodology: 2026.01.18

Zone Dwell Bosphorus/Dardanelles Approach Jul 11, 2026 23:11 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 4h 48m
  • Data Points: 14 AIS positions
  • Period: 2026-07-11T23:11:28+00:00 to 2026-07-12T03:59:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 288,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-07-11T23:11:28+00:00",
        "lat": 40.96243170000000333175194100476801395416259765625,
        "lon": 28.76439669999999892979758442379534244537353515625
    },
    "last_point": {
        "ts": "2026-07-12T03:59:26+00:00",
        "lat": 40.962033300000001645457814447581768035888671875,
        "lon": 28.763948299999999136389305931515991687774658203125
    }
}

Methodology: 2026.01.18

Zone Dwell Bosphorus/Dardanelles Approach Jul 7, 2026 12:23 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 1 hours
  • Data Points: 3 AIS positions
  • Period: 2026-07-07T12:23:27+00:00 to 2026-07-07T13:23:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 60,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-07-07T12:23:27+00:00",
        "lat": 40.96186329999999742312866146676242351531982421875,
        "lon": 28.762636700000001610533217899501323699951171875
    },
    "last_point": {
        "ts": "2026-07-07T13:23:28+00:00",
        "lat": 40.96193329999999832580215297639369964599609375,
        "lon": 28.762544999999999362216840381734073162078857421875
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Bosphorus/Dardanelles Approach Jul 7, 2026 11:53 UTC 55/100
Vessel A: IMO 9388730 (SAVIR TIGER) INDONESIA
Vessel B: Gogland (GOGLAND) Cameroon
  • Minimum Distance: 465 meters
  • Average Distance: 480 meters
  • Duration: 30 minutes
  • Period: 2026-07-07T11:53:33+00:00 to 2026-07-07T12:23:36+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 55/100

Low-confidence STS candidate – may warrant review. Two tankers (SAVIR TIGER and GOGLAND) maintained close proximity (min 465m, avg 480m) for 30 minutes. Both vessels were slow-moving (avg speeds 0.2 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 465m, avg 480m
Duration5/25Duration 30 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

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-07T13:15:09.168770+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 525121076,
        "imo": 9388730,
        "name": "SAVIR TIGER",
        "flag": "INDONESIA"
    },
    "vessel_b": {
        "mmsi": 613511200,
        "imo": 9430210,
        "name": "GOGLAND",
        "flag": "Cameroon"
    },
    "min_distance_m": 465.1000000000000227373675443232059478759765625,
    "avg_distance_m": 479.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 20.699999999999999289457264239899814128875732421875,
    "duration_minutes": 30.10000000000000142108547152020037174224853515625,
    "overlap_duration_s": 1803,
    "speed_a_avg": 0.200000000000000011102230246251565404236316680908203125,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_b_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.200000000000000011102230246251565404236316680908203125,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0.1499999999999999944488848768742172978818416595458984375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-07-07T11:53:33+00:00",
        "end": "2026-07-07T12:23:36+00:00"
    },
    "points_count": {
        "vessel_a": 2,
        "vessel_b": 2
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 465m, avg 480m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 30 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b121m"
            },
            "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 (SAVIR TIGER and GOGLAND) maintained close proximity (min 465m, avg 480m) for 30 minutes. Both vessels were slow-moving (avg speeds 0.2 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": 40.96090579999999903293428360484540462493896484375,
            "lon": 28.764983799999999547480911132879555225372314453125
        },
        "time_window": {
            "start_ts": "2026-07-07T11:53:33+00:00",
            "end_ts": "2026-07-07T12:23:36+00:00"
        },
        "searched_at": "2026-07-07T13:15:09.168770+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Zone Dwell Bosphorus/Dardanelles Approach Jul 7, 2026 11:05 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 2h 18m
  • Data Points: 5 AIS positions
  • Period: 2026-07-07T11:05:28+00:00 to 2026-07-07T13:23:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 138,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-07-07T11:05:28+00:00",
        "lat": 40.9637732999999997218765201978385448455810546875,
        "lon": 28.762859999999999871533873374573886394500732421875
    },
    "last_point": {
        "ts": "2026-07-07T13:23:28+00:00",
        "lat": 40.96193329999999832580215297639369964599609375,
        "lon": 28.762544999999999362216840381734073162078857421875
    }
}

Methodology: 2026.01.18

Zone Dwell Bosphorus/Dardanelles Approach Jul 7, 2026 10:17 UTC 80.0%
  • Zone: Bosphorus/Dardanelles Approach
  • Duration: 3h 6m
  • Data Points: 6 AIS positions
  • Period: 2026-07-07T10:17:28+00:00 to 2026-07-07T13:23:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 186,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-07-07T10:17:28+00:00",
        "lat": 40.96385670000000089885361376218497753143310546875,
        "lon": 28.76319670000000172649379237554967403411865234375
    },
    "last_point": {
        "ts": "2026-07-07T13:23:28+00:00",
        "lat": 40.96193329999999832580215297639369964599609375,
        "lon": 28.762544999999999362216840381734073162078857421875
    }
}

Methodology: 2026.01.18

Source snapshot

SanctionerAs ofEntity ID
🇬🇧 UK2025-09-299430210

We mirror official lists; always verify at the source.

Sanctioned on the same day

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