Vanino

IMO 8724779

Vessel information

Vessel Name Vanino
IMO Number 8724779
MMSI 273331620
Vessel Type Oil Products Tanker | Navire-citerne pour produits pétroliers
Flag 🇷🇺 Russia View flag history 📜
Call Sign UEYS
Gross Tonnage 1,896 GT
Year Built 1986

Sanctioned by

Company & Ownership

🏢
Tarvi Management Ltd
IMO Company: 5418481
Address C/O: Baltic Tanker Co Ltd Korpus 2, kanal Mezhevoy 3, St Petersburg, 198035, Russia.
Status Active
Fleet 1.0 owner, 0.0 operator, 0.0 manager, 0.0 beneficial

Management & Operations

ISM Manager
BALTIC TANKER CO LTD
Korpus 2, kanal Mezhevoy 3, St Petersburg, 198035, Russia.
Commercial Manager
BALTIC TANKER CO LTD

Classification & Safety

Current Classification
Russian Maritime Register of Shipping Delivered

Programs & Notes

EU Russia Sanctions – Shadow Fleet | SEMA (Canada) — vessel designations

Vessel Changes

5 changes

AIS Events

50 events detected • 2 zones • Last: Oct 23, 2026

Sts Ust-Luga Terminal Complex Oct 23, 2026 15:10 UTC 80/100
Vessel A: Korsakov (KORSAKOV) RUSSIA
Vessel B: Vanino (VANINO) RUSSIA
  • Minimum Distance: 14 meters
  • Average Distance: 14 meters
  • Duration: 50 minutes
  • Period: 2026-10-23T15:10:45+00:00 to 2026-10-23T16:01:25+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 14m, avg 14m) for 51 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 Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 14m, avg 14m
Duration10/25Duration 51 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±0m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "min_distance_m": 13.800000000000000710542735760100185871124267578125,
    "avg_distance_m": 14.4000000000000003552713678800500929355621337890625,
    "distance_consistency_m": 0.5,
    "duration_minutes": 50.7000000000000028421709430404007434844970703125,
    "overlap_duration_s": 3040,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-23T15:10:45+00:00",
        "end": "2026-10-23T16:01:25+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 14m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 51 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b10m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 14m, avg 14m) for 51 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 Ust-Luga Terminal Complex, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 23, 2026 14:19 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 2h 15m
  • Data Points: 7 AIS positions
  • Period: 2026-10-23T14:19:06+00:00 to 2026-10-23T16:34:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 135,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-10-23T14:19:06+00:00",
        "lat": 59.7719282999999990124706528149545192718505859375,
        "lon": 28.443611700000001718535713735036551952362060546875
    },
    "last_point": {
        "ts": "2026-10-23T16:34:04+00:00",
        "lat": 59.7719349999999991496224538423120975494384765625,
        "lon": 28.443598300000001444232111680321395397186279296875
    }
}

Methodology: 2026.01.18

Sts🛰️? Ust-Luga Terminal Complex Oct 23, 2026 14:19 UTC 90/100
Vessel A: Vanino (VANINO) RUSSIA
Vessel B: Korsakov (KORSAKOV) RUSSIA
  • Minimum Distance: 14 meters
  • Average Distance: 15 meters
  • Duration: 1h 36m
  • Period: 2026-10-23T14:19:06+00:00 to 2026-10-23T15:55:06+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 14m, avg 15m) for 96 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 14m, avg 15m
Duration20/25Duration 96 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20261023T041640_20261023T041705_010007_013F75_7322_COG • Acquired: 2026-10-23T04:16:40.997613Z • Platform: sentinel-1c

Searched: 2026-10-23T20:15:04.669204+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "min_distance_m": 13.9000000000000003552713678800500929355621337890625,
    "avg_distance_m": 14.5999999999999996447286321199499070644378662109375,
    "distance_consistency_m": 1,
    "duration_minutes": 96,
    "overlap_duration_s": 5760,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-23T14:19:06+00:00",
        "end": "2026-10-23T15:55:06+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 15m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 96 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 14m, avg 15m) for 96 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga Terminal Complex, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 59.77196169999999852961991564370691776275634765625,
            "lon": 28.44349989999999905876393313519656658172607421875
        },
        "time_window": {
            "start_ts": "2026-10-23T14:19:06+00:00",
            "end_ts": "2026-10-23T15:55:06+00:00"
        },
        "searched_at": "2026-10-23T20:15:04.669204+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20261023T041640_20261023T041705_010007_013F75_7322_COG",
        "scene_datetime": "2026-10-23T04:16:40.997613Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 28.5112570000000005165929906070232391357421875,
            "min_lat": 58.78308100000000280260792351327836513519287109375,
            "max_lon": 33.73054499999999933379513095133006572723388671875,
            "max_lat": 60.709418999999996913174982182681560516357421875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1559091_thumbnail_20261023201509.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1559091_thumbnail_20261023201509.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Methodology: 2026.01.18

Sts Ust-Luga Terminal Complex Oct 23, 2026 13:10 UTC 95/100
Vessel A: Vanino (VANINO) RUSSIA
Vessel B: Korsakov (KORSAKOV) RUSSIA
  • Minimum Distance: 14 meters
  • Average Distance: 15 meters
  • Duration: 2h 33m
  • Period: 2026-10-23T13:22:07+00:00 to 2026-10-23T15:55:06+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 14m, avg 15m) for 153 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 Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 14m, avg 15m
Duration25/25Duration 153 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "min_distance_m": 13.9000000000000003552713678800500929355621337890625,
    "avg_distance_m": 15.300000000000000710542735760100185871124267578125,
    "distance_consistency_m": 1.5,
    "duration_minutes": 153,
    "overlap_duration_s": 9179,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-23T13:22:07+00:00",
        "end": "2026-10-23T15:55:06+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 15m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 153 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: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 14m, avg 15m) for 153 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 Ust-Luga Terminal Complex, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 23, 2026 13:04 UTC 75.0%
  • Duration: 3h 30m
  • Radius: 1 meters
  • Data Points: 11 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 210,
    "points": 11,
    "centroid": {
        "lat": 59.77192454545454580738805816508829593658447265625,
        "lon": 28.44361075454545328966560191474854946136474609375
    },
    "bbox": {
        "min_lat": 59.77192000000000149384504766203463077545166015625,
        "min_lon": 28.443598300000001444232111680321395397186279296875,
        "max_lat": 59.7719349999999991496224538423120975494384765625,
        "max_lon": 28.443633299999998342855178634636104106903076171875
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 23, 2026 13:04 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 3h 30m
  • Data Points: 11 AIS positions
  • Period: 2026-10-23T13:04:06+00:00 to 2026-10-23T16:34:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 210,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-10-23T13:04:06+00:00",
        "lat": 59.77192170000000004392859409563243389129638671875,
        "lon": 28.443633299999998342855178634636104106903076171875
    },
    "last_point": {
        "ts": "2026-10-23T16:34:04+00:00",
        "lat": 59.7719349999999991496224538423120975494384765625,
        "lon": 28.443598300000001444232111680321395397186279296875
    }
}

Methodology: 2026.01.18

Sts Ust-Luga Terminal Complex Oct 23, 2026 12:56 UTC 95/100
Vessel A: Vanino (VANINO) RUSSIA
Vessel B: Korsakov (KORSAKOV) RUSSIA
  • Minimum Distance: 13 meters
  • Average Distance: 15 meters
  • Duration: 3h 48m
  • Period: 2026-10-23T12:07:06+00:00 to 2026-10-23T15:55:06+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 13m, avg 15m) for 228 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 Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 13m, avg 15m
Duration25/25Duration 228 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "min_distance_m": 13.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 14.699999999999999289457264239899814128875732421875,
    "distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 228,
    "overlap_duration_s": 13680,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-23T12:07:06+00:00",
        "end": "2026-10-23T15:55:06+00:00"
    },
    "points_count": {
        "vessel_a": 15,
        "vessel_b": 15
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 13m, avg 15m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 228 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 13m, avg 15m) for 228 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 Ust-Luga Terminal Complex, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 23, 2026 12:01 UTC 75.0%
  • Duration: 4h 32m
  • Radius: 2 meters
  • Data Points: 17 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 272.8999999999999772626324556767940521240234375,
    "points": 17,
    "centroid": {
        "lat": 59.7719219529411844860078417696058750152587890625,
        "lon": 28.4436179411764697988473926670849323272705078125
    },
    "bbox": {
        "min_lat": 59.77190829999999976962499204091727733612060546875,
        "min_lon": 28.443598300000001444232111680321395397186279296875,
        "max_lat": 59.7719349999999991496224538423120975494384765625,
        "max_lon": 28.443633299999998342855178634636104106903076171875
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 23, 2026 12:01 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 4h 32m
  • Data Points: 17 AIS positions
  • Period: 2026-10-23T12:01:07+00:00 to 2026-10-23T16:34:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 272.8999999999999772626324556767940521240234375,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-10-23T12:01:07+00:00",
        "lat": 59.77190829999999976962499204091727733612060546875,
        "lon": 28.443631700000000961381374509073793888092041015625
    },
    "last_point": {
        "ts": "2026-10-23T16:34:04+00:00",
        "lat": 59.7719349999999991496224538423120975494384765625,
        "lon": 28.443598300000001444232111680321395397186279296875
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 23, 2026 11:31 UTC 75.0%
  • Duration: 5h 3m
  • Radius: 2 meters
  • Data Points: 20 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 2.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 303,
    "points": 20,
    "centroid": {
        "lat": 59.77191907499999246056177071295678615570068359375,
        "lon": 28.443619165000001203225110657513141632080078125
    },
    "bbox": {
        "min_lat": 59.77190170000000080108293332159519195556640625,
        "min_lon": 28.443598300000001444232111680321395397186279296875,
        "max_lat": 59.7719349999999991496224538423120975494384765625,
        "max_lon": 28.443633299999998342855178634636104106903076171875
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 23, 2026 11:31 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 5h 3m
  • Data Points: 20 AIS positions
  • Period: 2026-10-23T11:31:06+00:00 to 2026-10-23T16:34:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 303,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-10-23T11:31:06+00:00",
        "lat": 59.77190329999999818255673744715750217437744140625,
        "lon": 28.4436232999999987214323482476174831390380859375
    },
    "last_point": {
        "ts": "2026-10-23T16:34:04+00:00",
        "lat": 59.7719349999999991496224538423120975494384765625,
        "lon": 28.443598300000001444232111680321395397186279296875
    }
}

Methodology: 2026.01.18

Sts Ust-Luga Terminal Complex Oct 23, 2026 11:22 UTC 95/100
Vessel A: Vanino (VANINO) RUSSIA
Vessel B: Korsakov (KORSAKOV) RUSSIA
  • Minimum Distance: 13 meters
  • Average Distance: 15 meters
  • Duration: 4h 15m
  • Period: 2026-10-23T11:40:06+00:00 to 2026-10-23T15:55:06+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 13m, avg 15m) for 255 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 Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 13m, avg 15m
Duration25/25Duration 255 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "min_distance_m": 13.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 14.5999999999999996447286321199499070644378662109375,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 255,
    "overlap_duration_s": 15300,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-23T11:40:06+00:00",
        "end": "2026-10-23T15:55:06+00:00"
    },
    "points_count": {
        "vessel_a": 18,
        "vessel_b": 18
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 13m, avg 15m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 255 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 13m, avg 15m) for 255 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 Ust-Luga Terminal Complex, a known STS activity area."
    }
}

Methodology: 2026.01.18

Sts Ust-Luga Terminal Complex Oct 23, 2026 10:50 UTC 95/100
Vessel A: Vanino (VANINO) RUSSIA
Vessel B: Korsakov (KORSAKOV) RUSSIA
  • Minimum Distance: 13 meters
  • Average Distance: 15 meters
  • Duration: 5h 6m
  • Period: 2026-10-23T10:25:06+00:00 to 2026-10-23T15:31:06+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 13m, avg 15m) for 306 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 Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 13m, avg 15m
Duration25/25Duration 306 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "min_distance_m": 13.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 14.5999999999999996447286321199499070644378662109375,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 306,
    "overlap_duration_s": 18360,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-23T10:25:06+00:00",
        "end": "2026-10-23T15:31:06+00:00"
    },
    "points_count": {
        "vessel_a": 19,
        "vessel_b": 19
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 13m, avg 15m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 306 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 13m, avg 15m) for 306 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 Ust-Luga Terminal Complex, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 23, 2026 10:25 UTC 75.0%
  • Duration: 6h 9m
  • Radius: 2 meters
  • Data Points: 22 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 2.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 369,
    "points": 22,
    "centroid": {
        "lat": 59.77191870454544897484083776362240314483642578125,
        "lon": 28.443621363636363952309693559072911739349365234375
    },
    "bbox": {
        "min_lat": 59.77190170000000080108293332159519195556640625,
        "min_lon": 28.443598300000001444232111680321395397186279296875,
        "max_lat": 59.7719349999999991496224538423120975494384765625,
        "max_lon": 28.443646699999998617158780689351260662078857421875
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 23, 2026 10:25 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 6h 9m
  • Data Points: 22 AIS positions
  • Period: 2026-10-23T10:25:06+00:00 to 2026-10-23T16:34:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 369,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-10-23T10:25:06+00:00",
        "lat": 59.77191669999999845686033950187265872955322265625,
        "lon": 28.443646699999998617158780689351260662078857421875
    },
    "last_point": {
        "ts": "2026-10-23T16:34:04+00:00",
        "lat": 59.7719349999999991496224538423120975494384765625,
        "lon": 28.443598300000001444232111680321395397186279296875
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 23, 2026 09:07 UTC 75.0%
  • Duration: 6h 24m
  • Radius: 2 meters
  • Data Points: 20 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 384,
    "points": 20,
    "centroid": {
        "lat": 59.77191807499999498531906283460557460784912109375,
        "lon": 28.443625164999996712822394329123198986053466796875
    },
    "bbox": {
        "min_lat": 59.77190170000000080108293332159519195556640625,
        "min_lon": 28.443601699999998544399204547517001628875732421875,
        "max_lat": 59.7719282999999990124706528149545192718505859375,
        "max_lon": 28.443646699999998617158780689351260662078857421875
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 23, 2026 09:07 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 6h 24m
  • Data Points: 20 AIS positions
  • Period: 2026-10-23T09:07:06+00:00 to 2026-10-23T15:31:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 384,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-10-23T09:07:06+00:00",
        "lat": 59.7719282999999990124706528149545192718505859375,
        "lon": 28.443638299999999929923433228395879268646240234375
    },
    "last_point": {
        "ts": "2026-10-23T15:31:06+00:00",
        "lat": 59.77192170000000004392859409563243389129638671875,
        "lon": 28.44360329999999947858668747358024120330810546875
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 23, 2026 08:37 UTC 75.0%
  • Duration: 6h 24m
  • Radius: 2 meters
  • Data Points: 20 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 384,
    "points": 20,
    "centroid": {
        "lat": 59.77191840500000807878677733242511749267578125,
        "lon": 28.44362691500000295263816951774060726165771484375
    },
    "bbox": {
        "min_lat": 59.77190170000000080108293332159519195556640625,
        "min_lon": 28.443601699999998544399204547517001628875732421875,
        "max_lat": 59.7719282999999990124706528149545192718505859375,
        "max_lon": 28.443646699999998617158780689351260662078857421875
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 23, 2026 08:37 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 6h 24m
  • Data Points: 20 AIS positions
  • Period: 2026-10-23T08:58:06+00:00 to 2026-10-23T15:22:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 384,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-10-23T08:58:06+00:00",
        "lat": 59.7719282999999990124706528149545192718505859375,
        "lon": 28.443638299999999929923433228395879268646240234375
    },
    "last_point": {
        "ts": "2026-10-23T15:22:06+00:00",
        "lat": 59.77192000000000149384504766203463077545166015625,
        "lon": 28.443601699999998544399204547517001628875732421875
    }
}

Methodology: 2026.01.18

Sts🛰️? Ust-Luga Terminal Complex Oct 23, 2026 08:30 UTC 75/100
Vessel A: Korsakov (KORSAKOV) RUSSIA
Vessel B: Vanino (VANINO) RUSSIA
  • Minimum Distance: 13 meters
  • Average Distance: 14 meters
  • Duration: 40 minutes
  • Period: 2026-10-23T08:30:13+00:00 to 2026-10-23T09:10:55+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 13m, avg 14m) for 41 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 Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 13m, avg 14m
Duration5/25Duration 41 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20261023T041640_20261023T041705_010007_013F75_7322_COG • Acquired: 2026-10-23T04:16:40.997613Z • Platform: sentinel-1c

Searched: 2026-10-23T10:45:13.077721+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "min_distance_m": 13,
    "avg_distance_m": 14.4000000000000003552713678800500929355621337890625,
    "distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 40.7000000000000028421709430404007434844970703125,
    "overlap_duration_s": 2442,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-23T08:30:13+00:00",
        "end": "2026-10-23T09:10:55+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 13m, avg 14m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 41 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 13m, avg 14m) for 41 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 Ust-Luga Terminal Complex, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 59.77196959999999847923390916548669338226318359375,
            "lon": 28.443527100000000729096427676267921924591064453125
        },
        "time_window": {
            "start_ts": "2026-10-23T08:30:13+00:00",
            "end_ts": "2026-10-23T09:10:55+00:00"
        },
        "searched_at": "2026-10-23T10:45:13.077721+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20261023T041640_20261023T041705_010007_013F75_7322_COG",
        "scene_datetime": "2026-10-23T04:16:40.997613Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 28.5112570000000005165929906070232391357421875,
            "min_lat": 58.78308100000000280260792351327836513519287109375,
            "max_lon": 33.73054499999999933379513095133006572723388671875,
            "max_lat": 60.709418999999996913174982182681560516357421875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1556748_thumbnail_20261023104517.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1556748_thumbnail_20261023104517.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Methodology: 2026.01.18

Sts Ust-Luga Terminal Complex Oct 23, 2026 07:31 UTC 95/100
Vessel A: Vanino (VANINO) RUSSIA
Vessel B: Korsakov (KORSAKOV) RUSSIA
  • Minimum Distance: 13 meters
  • Average Distance: 14 meters
  • Duration: 6h 6m
  • Period: 2026-10-23T07:31:06+00:00 to 2026-10-23T13:37:06+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 13m, avg 14m) for 366 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 Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 13m, avg 14m
Duration25/25Duration 366 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "min_distance_m": 13.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 14.4000000000000003552713678800500929355621337890625,
    "distance_consistency_m": 0.90000000000000002220446049250313080847263336181640625,
    "duration_minutes": 366,
    "overlap_duration_s": 21960,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-23T07:31:06+00:00",
        "end": "2026-10-23T13:37:06+00:00"
    },
    "points_count": {
        "vessel_a": 20,
        "vessel_b": 20
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 13m, avg 14m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 366 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 13m, avg 14m) for 366 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 Ust-Luga Terminal Complex, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 23, 2026 07:13 UTC 75.0%
  • Duration: 6h 30m
  • Radius: 2 meters
  • Data Points: 20 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 2,
    "duration_minutes": 390,
    "points": 20,
    "centroid": {
        "lat": 59.7719189050000068164081312716007232666015625,
        "lon": 28.443626994999998913726813043467700481414794921875
    },
    "bbox": {
        "min_lat": 59.77190170000000080108293332159519195556640625,
        "min_lon": 28.443593299999999857163857086561620235443115234375,
        "max_lat": 59.7719282999999990124706528149545192718505859375,
        "max_lon": 28.443646699999998617158780689351260662078857421875
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 23, 2026 07:13 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 6h 30m
  • Data Points: 20 AIS positions
  • Period: 2026-10-23T07:49:07+00:00 to 2026-10-23T14:19:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 390,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-10-23T07:49:07+00:00",
        "lat": 59.77192500000000308091330225579440593719482421875,
        "lon": 28.443593299999999857163857086561620235443115234375
    },
    "last_point": {
        "ts": "2026-10-23T14:19:06+00:00",
        "lat": 59.7719282999999990124706528149545192718505859375,
        "lon": 28.443611700000001718535713735036551952362060546875
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 23, 2026 06:10 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 2 meters
  • Data Points: 18 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 2.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 387,
    "points": 18,
    "centroid": {
        "lat": 59.7719174888888886698623537085950374603271484375,
        "lon": 28.4436232388888896593925892375409603118896484375
    },
    "bbox": {
        "min_lat": 59.77190170000000080108293332159519195556640625,
        "min_lon": 28.443583300000000235741026699542999267578125,
        "max_lat": 59.7719282999999990124706528149545192718505859375,
        "max_lon": 28.443646699999998617158780689351260662078857421875
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 23, 2026 06:10 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 6h 27m
  • Data Points: 18 AIS positions
  • Period: 2026-10-23T06:10:06+00:00 to 2026-10-23T12:37:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 387,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-10-23T06:10:06+00:00",
        "lat": 59.77192170000000004392859409563243389129638671875,
        "lon": 28.443583300000000235741026699542999267578125
    },
    "last_point": {
        "ts": "2026-10-23T12:37:06+00:00",
        "lat": 59.771923299999997425402398221194744110107421875,
        "lon": 28.4436299999999988585841492749750614166259765625
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 22, 2026 08:07 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 1h 49m
  • Data Points: 5 AIS positions
  • Period: 2026-10-22T08:07:53+00:00 to 2026-10-22T09:57:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 109.599999999999994315658113919198513031005859375,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-10-22T08:07:53+00:00",
        "lat": 59.7719383000000021866071620024740695953369140625,
        "lon": 28.4436232999999987214323482476174831390380859375
    },
    "last_point": {
        "ts": "2026-10-22T09:57:28+00:00",
        "lat": 59.77192500000000308091330225579440593719482421875,
        "lon": 28.44362830000000030850060284137725830078125
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 22, 2026 07:58 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 1h 59m
  • Data Points: 6 AIS positions
  • Period: 2026-10-22T07:58:03+00:00 to 2026-10-22T09:57:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 119.400000000000005684341886080801486968994140625,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-10-22T07:58:03+00:00",
        "lat": 59.77193170000000321806510328315198421478271484375,
        "lon": 28.44361500000000120280674309469759464263916015625
    },
    "last_point": {
        "ts": "2026-10-22T09:57:28+00:00",
        "lat": 59.77192500000000308091330225579440593719482421875,
        "lon": 28.44362830000000030850060284137725830078125
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 21, 2026 16:09 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 1h 36m
  • Data Points: 4 AIS positions
  • Period: 2026-10-21T16:09:03+00:00 to 2026-10-21T17:45:03+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 96,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-10-21T16:09:03+00:00",
        "lat": 59.7719067000000023881511879153549671173095703125,
        "lon": 28.443605000000001581383912707678973674774169921875
    },
    "last_point": {
        "ts": "2026-10-21T17:45:03+00:00",
        "lat": 59.7719299999999975625541992485523223876953125,
        "lon": 28.443593299999999857163857086561620235443115234375
    }
}

Methodology: 2026.01.18

Sts🛰️? Ust-Luga Terminal Complex Oct 21, 2026 16:09 UTC 85/100
Vessel A: Vanino (VANINO) RUSSIA
Vessel B: Korsakov (KORSAKOV) RUSSIA
  • Minimum Distance: 18 meters
  • Average Distance: 19 meters
  • Duration: 1h 15m
  • Period: 2026-10-21T16:09:03+00:00 to 2026-10-21T17:24:03+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 18m, avg 19m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 18m, avg 19m
Duration15/25Duration 75 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±0m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20261021T154740_20261021T154805_009985_013EA7_2AC7_COG • Acquired: 2026-10-21T15:47:40.789043Z • Platform: sentinel-1c

Searched: 2026-10-21T22:45:01.474497+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "min_distance_m": 18.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 18.60000000000000142108547152020037174224853515625,
    "distance_consistency_m": 0.200000000000000011102230246251565404236316680908203125,
    "duration_minutes": 75,
    "overlap_duration_s": 4500,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T16:09:03+00:00",
        "end": "2026-10-21T17:24:03+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 18m, avg 19m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 75 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b10m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 18m, avg 19m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga Terminal Complex, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 59.7719828000000035217453842051327228546142578125,
            "lon": 28.44349199999999910914993961341679096221923828125
        },
        "time_window": {
            "start_ts": "2026-10-21T16:09:03+00:00",
            "end_ts": "2026-10-21T17:24:03+00:00"
        },
        "searched_at": "2026-10-21T22:45:01.474497+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20261021T154740_20261021T154805_009985_013EA7_2AC7_COG",
        "scene_datetime": "2026-10-21T15:47:40.789043Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 25.166478999999998933390088495798408985137939453125,
            "min_lat": 58.86780900000000116278897621668875217437744140625,
            "max_lon": 30.4105339999999984001988195814192295074462890625,
            "max_lat": 60.79553200000000146019374369643628597259521484375
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1547578_thumbnail_20261021224506.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1547578_thumbnail_20261021224506.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 21, 2026 15:45 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 2 hours
  • Data Points: 7 AIS positions
  • Period: 2026-10-21T15:45:04+00:00 to 2026-10-21T17:45:03+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 120,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-10-21T15:45:04+00:00",
        "lat": 59.77192000000000149384504766203463077545166015625,
        "lon": 28.443605000000001581383912707678973674774169921875
    },
    "last_point": {
        "ts": "2026-10-21T17:45:03+00:00",
        "lat": 59.7719299999999975625541992485523223876953125,
        "lon": 28.443593299999999857163857086561620235443115234375
    }
}

Methodology: 2026.01.18

Sts Ust-Luga Terminal Complex Oct 21, 2026 15:35 UTC 75/100
Vessel A: Korsakov (KORSAKOV) RUSSIA
Vessel B: Vanino (VANINO) RUSSIA
  • Minimum Distance: 12 meters
  • Average Distance: 16 meters
  • Duration: 37 minutes
  • Period: 2026-10-21T15:35:22+00:00 to 2026-10-21T16:12:54+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 12m, avg 16m) for 38 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 Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 12m, avg 16m
Duration5/25Duration 38 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "min_distance_m": 12.0999999999999996447286321199499070644378662109375,
    "avg_distance_m": 15.5,
    "distance_consistency_m": 3,
    "duration_minutes": 37.5,
    "overlap_duration_s": 2252,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T15:35:22+00:00",
        "end": "2026-10-21T16:12:54+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 12m, avg 16m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 38 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: Ust-Luga Terminal Complex"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 12m, avg 16m) for 38 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 Ust-Luga Terminal Complex, a known STS activity area."
    }
}

Methodology: 2026.01.18

Sts🛰️? Ust-Luga Terminal Complex Oct 21, 2026 14:57 UTC 95/100
Vessel A: Vanino (VANINO) RUSSIA
Vessel B: Korsakov (KORSAKOV) RUSSIA
  • Minimum Distance: 11 meters
  • Average Distance: 16 meters
  • Duration: 2h 27m
  • Period: 2026-10-21T14:57:03+00:00 to 2026-10-21T17:24:03+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 11m, avg 16m) for 147 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 11m, avg 16m
Duration25/25Duration 147 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20261021T154740_20261021T154805_009985_013EA7_2AC7_COG • Acquired: 2026-10-21T15:47:40.789043Z • Platform: sentinel-1c

Searched: 2026-10-21T21:45:01.246120+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "min_distance_m": 11.0999999999999996447286321199499070644378662109375,
    "avg_distance_m": 16,
    "distance_consistency_m": 2.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 147,
    "overlap_duration_s": 8820,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T14:57:03+00:00",
        "end": "2026-10-21T17:24:03+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 11m, avg 16m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 147 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 11m, avg 16m) for 147 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga Terminal Complex, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 59.771971100000001797525328584015369415283203125,
            "lon": 28.443506299999999242800186038948595523834228515625
        },
        "time_window": {
            "start_ts": "2026-10-21T14:57:03+00:00",
            "end_ts": "2026-10-21T17:24:03+00:00"
        },
        "searched_at": "2026-10-21T21:45:01.246120+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20261021T154740_20261021T154805_009985_013EA7_2AC7_COG",
        "scene_datetime": "2026-10-21T15:47:40.789043Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 25.166478999999998933390088495798408985137939453125,
            "min_lat": 58.86780900000000116278897621668875217437744140625,
            "max_lon": 30.4105339999999984001988195814192295074462890625,
            "max_lat": 60.79553200000000146019374369643628597259521484375
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1547276_thumbnail_20261021214511.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1547276_thumbnail_20261021214511.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 21, 2026 14:51 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 2h 54m
  • Data Points: 9 AIS positions
  • Period: 2026-10-21T14:51:03+00:00 to 2026-10-21T17:45:03+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 174,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-10-21T14:51:03+00:00",
        "lat": 59.77192000000000149384504766203463077545166015625,
        "lon": 28.443605000000001581383912707678973674774169921875
    },
    "last_point": {
        "ts": "2026-10-21T17:45:03+00:00",
        "lat": 59.7719299999999975625541992485523223876953125,
        "lon": 28.443593299999999857163857086561620235443115234375
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 21, 2026 13:12 UTC 75.0%
  • Duration: 4h 33m
  • Radius: 1 meters
  • Data Points: 13 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 273,
    "points": 13,
    "centroid": {
        "lat": 59.77191911538462676389826810918748378753662109375,
        "lon": 28.443602423076921326128285727463662624359130859375
    },
    "bbox": {
        "min_lat": 59.7719067000000023881511879153549671173095703125,
        "min_lon": 28.443588299999998270095602492801845073699951171875,
        "max_lat": 59.7719299999999975625541992485523223876953125,
        "max_lon": 28.44361500000000120280674309469759464263916015625
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 21, 2026 13:12 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 4h 33m
  • Data Points: 13 AIS positions
  • Period: 2026-10-21T13:12:03+00:00 to 2026-10-21T17:45:03+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 273,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-10-21T13:12:03+00:00",
        "lat": 59.77192000000000149384504766203463077545166015625,
        "lon": 28.443606700000000131467459141276776790618896484375
    },
    "last_point": {
        "ts": "2026-10-21T17:45:03+00:00",
        "lat": 59.7719299999999975625541992485523223876953125,
        "lon": 28.443593299999999857163857086561620235443115234375
    }
}

Methodology: 2026.01.18

Sts🛰️? Ust-Luga Terminal Complex Oct 21, 2026 13:12 UTC 95/100
Vessel A: Vanino (VANINO) RUSSIA
Vessel B: Korsakov (KORSAKOV) RUSSIA
  • Minimum Distance: 8 meters
  • Average Distance: 14 meters
  • Duration: 4h 12m
  • Period: 2026-10-21T13:12:03+00:00 to 2026-10-21T17:24:03+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 8m, avg 14m) for 252 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 Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 8m, avg 14m
Duration25/25Duration 252 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20261021T154740_20261021T154805_009985_013EA7_2AC7_COG • Acquired: 2026-10-21T15:47:40.789043Z • Platform: sentinel-1c

Searched: 2026-10-21T19:00:04.391691+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "min_distance_m": 8.4000000000000003552713678800500929355621337890625,
    "avg_distance_m": 14.300000000000000710542735760100185871124267578125,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 252,
    "overlap_duration_s": 15120,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-21T13:12:03+00:00",
        "end": "2026-10-21T17:24:03+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 8m, avg 14m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 252 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: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 8m, avg 14m) for 252 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 Ust-Luga Terminal Complex, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 59.7719603999999975485479808412492275238037109375,
            "lon": 28.443509299999998773955667275004088878631591796875
        },
        "time_window": {
            "start_ts": "2026-10-21T13:12:03+00:00",
            "end_ts": "2026-10-21T17:24:03+00:00"
        },
        "searched_at": "2026-10-21T19:00:04.391691+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20261021T154740_20261021T154805_009985_013EA7_2AC7_COG",
        "scene_datetime": "2026-10-21T15:47:40.789043Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 25.166478999999998933390088495798408985137939453125,
            "min_lat": 58.86780900000000116278897621668875217437744140625,
            "max_lon": 30.4105339999999984001988195814192295074462890625,
            "max_lat": 60.79553200000000146019374369643628597259521484375
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1546669_thumbnail_20261021190011.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1546669_thumbnail_20261021190011.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 21, 2026 12:03 UTC 75.0%
  • Duration: 5h 42m
  • Radius: 1 meters
  • Data Points: 17 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 342,
    "points": 17,
    "centroid": {
        "lat": 59.77191932941178009741634014062583446502685546875,
        "lon": 28.443603911764707703468957333825528621673583984375
    },
    "bbox": {
        "min_lat": 59.7719067000000023881511879153549671173095703125,
        "min_lon": 28.443588299999998270095602492801845073699951171875,
        "max_lat": 59.7719299999999975625541992485523223876953125,
        "max_lon": 28.44361500000000120280674309469759464263916015625
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 21, 2026 12:03 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 5h 42m
  • Data Points: 17 AIS positions
  • Period: 2026-10-21T12:03:03+00:00 to 2026-10-21T17:45:03+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 342,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-10-21T12:03:03+00:00",
        "lat": 59.77191669999999845686033950187265872955322265625,
        "lon": 28.44360830000000106565494206734001636505126953125
    },
    "last_point": {
        "ts": "2026-10-21T17:45:03+00:00",
        "lat": 59.7719299999999975625541992485523223876953125,
        "lon": 28.443593299999999857163857086561620235443115234375
    }
}

Methodology: 2026.01.18

Ais Gap🛰️✓ Malacca Strait Sanctioned Vessel Zone Oct 21, 2026 06:24 UTC 70.0%
  • Gap Duration: 5h 38m
  • Last Seen: 2026-10-21T06:24:34+00:00 at 54.0936, 38.2242 (Zone: Malacca Strait Sanctioned Vessel Zone)
  • Next Seen: 2026-10-21T12:03:03+00:00 at 59.7719, 28.4436

🛰️ Gap Corroboration

🛰️ Imagery Available

These are snapshots that may corroborate presence during the gap. They do not reconstruct a continuous route.

SAR Imagery (Sentinel-1)

Status: ✓ Snapshot available

SAR snapshot available for review

Scene: S1C_IW_GRDH_1SDV_20261021T043344_20261021T043409_009978_013E60_24E3_COG • Time: 2026-10-21T04:33:44.815067Z

SAR preview

SAR coverage thumbnail

VIIRS Thermal Anomaly

Status: ✓ Signal detected

20 thermal/light anomalies detected

Detections: 20 thermal anomalies

View detections
LocationBrightnessTime
59.1338, 37.7925337.2 K2026-10-21T05:06:00+00:00
59.1472, 37.8699323.6 K2026-10-21T05:06:00+00:00
59.3854, 28.4599323.0 K2026-10-21T05:06:00+00:00
54.1702, 37.7169306.2 K2026-10-21T05:08:00+00:00
59.1395, 37.8076306.1 K2026-10-21T05:06:00+00:00

Searched: 2026-10-21T12:15:20.045889+00:00

Show Raw Evidence JSON
{
    "gap_minutes": 338.5,
    "last_seen": {
        "ts": "2026-10-21T06:24:34+00:00",
        "lat": 54.0936166999999983318048180080950260162353515625,
        "lon": 38.2242217000000010784788173623383045196533203125,
        "sog": 53.89999999999999857891452847979962825775146484375,
        "zone_id": "discovered_131"
    },
    "next_seen": {
        "ts": "2026-10-21T12:03:03+00:00",
        "lat": 59.77191669999999845686033950187265872955322265625,
        "lon": 28.44360830000000106565494206734001636505126953125,
        "zone_ids": [
            "russia_ust_luga"
        ]
    },
    "gap_enrichment": {
        "status": "done",
        "corridor": {
            "start": {
                "lat": 54.0936166999999983318048180080950260162353515625,
                "lon": 38.2242217000000010784788173623383045196533203125,
                "ts": "2026-10-21T06:24:34+00:00"
            },
            "end": {
                "lat": 59.77191669999999845686033950187265872955322265625,
                "lon": 28.44360830000000106565494206734001636505126953125,
                "ts": "2026-10-21T12:03:03+00:00"
            },
            "bbox": {
                "min_lat": 53.9134370000000018308128346689045429229736328125,
                "min_lon": 28.11337999999999937017491902224719524383544921875,
                "max_lat": 59.95209700000000196951077668927609920501708984375,
                "max_lon": 38.554450000000002773958840407431125640869140625
            },
            "buffer_km": 20
        },
        "sar": {
            "status": "snapshot",
            "scene_id": "S1C_IW_GRDH_1SDV_20261021T043344_20261021T043409_009978_013E60_24E3_COG",
            "scene_time": "2026-10-21T04:33:44.815067Z",
            "platform": "sentinel-1c",
            "assets": {
                "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1544877_thumbnail_20261021121523.png",
                "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1544877_thumbnail_20261021121523.png",
                "source": "copernicus_dataspace"
            },
            "notes": "SAR snapshot available for review"
        },
        "viirs": {
            "status": "signal",
            "dataset": "VIIRS_SNPP",
            "detection_count": 20,
            "top_detections": [
                {
                    "lat": 59.13378999999999763304003863595426082611083984375,
                    "lon": 37.79249999999999687361196265555918216705322265625,
                    "brightness": 337.18999999999999772626324556767940521240234375,
                    "frp": 3.089999999999999857891452847979962825775146484375,
                    "confidence": "n",
                    "acq_date": "2026-10-21",
                    "acq_time": "56",
                    "satellite": "N",
                    "daynight": "N",
                    "acq_datetime": "2026-10-21T05:06:00+00:00"
                },
                {
                    "lat": 59.147210000000001173248165287077426910400390625,
                    "lon": 37.8699399999999997135091689415276050567626953125,
                    "brightness": 323.58999999999997498889570124447345733642578125,
                    "frp": 2.229999999999999982236431605997495353221893310546875,
                    "confidence": "n",
                    "acq_date": "2026-10-21",
                    "acq_time": "56",
                    "satellite": "N",
                    "daynight": "N",
                    "acq_datetime": "2026-10-21T05:06:00+00:00"
                },
                {
                    "lat": 59.38539999999999707824827055446803569793701171875,
                    "lon": 28.4598799999999982901499606668949127197265625,
                    "brightness": 323.04000000000002046363078989088535308837890625,
                    "frp": 2.2599999999999997868371792719699442386627197265625,
                    "confidence": "n",
                    "acq_date": "2026-10-21",
                    "acq_time": "56",
                    "satellite": "N",
                    "daynight": "N",
                    "acq_datetime": "2026-10-21T05:06:00+00:00"
                },
                {
                    "lat": 54.170220000000000482032191939651966094970703125,
                    "lon": 37.71690000000000253521648119203746318817138671875,
                    "brightness": 306.17000000000001591615728102624416351318359375,
                    "frp": 0.479999999999999982236431605997495353221893310546875,
                    "confidence": "n",
                    "acq_date": "2026-10-21",
                    "acq_time": "58",
                    "satellite": "N",
                    "daynight": "N",
                    "acq_datetime": "2026-10-21T05:08:00+00:00"
                },
                {
                    "lat": 59.1395399999999966667019180022180080413818359375,
                    "lon": 37.80760000000000076170181273482739925384521484375,
                    "brightness": 306.1399999999999863575794734060764312744140625,
                    "frp": 0.82999999999999996003197111349436454474925994873046875,
                    "confidence": "n",
                    "acq_date": "2026-10-21",
                    "acq_time": "56",
                    "satellite": "N",
                    "daynight": "N",
                    "acq_datetime": "2026-10-21T05:06:00+00:00"
                }
            ],
            "notes": "20 thermal\/light anomalies detected"
        },
        "searched_at": "2026-10-21T12:15:20.045889+00:00"
    }
}

Methodology: 2026.01.18

Sts Ust-Luga Terminal Complex Oct 20, 2026 15:25 UTC 75/100
Vessel A: Korsakov (KORSAKOV) RUSSIA
Vessel B: Vanino (VANINO) RUSSIA
  • Minimum Distance: 13 meters
  • Average Distance: 14 meters
  • Duration: 33 minutes
  • Period: 2026-10-20T15:50:23+00:00 to 2026-10-20T16:23:23+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 13m, avg 14m) for 33 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 Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 13m, avg 14m
Duration5/25Duration 33 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±0m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "min_distance_m": 12.800000000000000710542735760100185871124267578125,
    "avg_distance_m": 13.5,
    "distance_consistency_m": 0.5,
    "duration_minutes": 33,
    "overlap_duration_s": 1980,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-20T15:50:23+00:00",
        "end": "2026-10-20T16:23:23+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 13m, avg 14m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 33 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b10m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 13m, avg 14m) for 33 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 Ust-Luga Terminal Complex, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 20, 2026 15:04 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 1h 54m
  • Data Points: 6 AIS positions
  • Period: 2026-10-20T15:04:39+00:00 to 2026-10-20T16:58:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 114,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-10-20T15:04:39+00:00",
        "lat": 59.77191169999999686979208490811288356781005859375,
        "lon": 28.44362170000000133995854412205517292022705078125
    },
    "last_point": {
        "ts": "2026-10-20T16:58:39+00:00",
        "lat": 59.77191169999999686979208490811288356781005859375,
        "lon": 28.44361669999999975289028952829539775848388671875
    }
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 20, 2026 13:01 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 3h 57m
  • Data Points: 9 AIS positions
  • Period: 2026-10-20T13:01:39+00:00 to 2026-10-20T16:58:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 237,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-10-20T13:01:39+00:00",
        "lat": 59.77191669999999845686033950187265872955322265625,
        "lon": 28.44361500000000120280674309469759464263916015625
    },
    "last_point": {
        "ts": "2026-10-20T16:58:39+00:00",
        "lat": 59.77191169999999686979208490811288356781005859375,
        "lon": 28.44361669999999975289028952829539775848388671875
    }
}

Methodology: 2026.01.18

Sts🛰️? Ust-Luga Terminal Complex Oct 20, 2026 13:01 UTC 75/100
Vessel A: Vanino (VANINO) RUSSIA
Vessel B: Korsakov (KORSAKOV) RUSSIA
  • Minimum Distance: 14 meters
  • Average Distance: 15 meters
  • Duration: 30 minutes
  • Period: 2026-10-20T13:01:39+00:00 to 2026-10-20T13:31:39+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 14m, avg 15m) for 30 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 14m, avg 15m
Duration5/25Duration 30 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1D_IW_GRDH_1SDV_20261020T155605_20261020T155630_005101_009A82_0EB9_COG • Acquired: 2026-10-20T15:56:05.409425Z • Platform: sentinel-1d

Searched: 2026-10-20T19:30:01.757336+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "min_distance_m": 14.4000000000000003552713678800500929355621337890625,
    "avg_distance_m": 15.199999999999999289457264239899814128875732421875,
    "distance_consistency_m": 0.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 30,
    "overlap_duration_s": 1800,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-20T13:01:39+00:00",
        "end": "2026-10-20T13:31:39+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 15m"
            },
            "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 \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 14m, avg 15m) for 30 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga Terminal Complex, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 59.7719570000000004483808879740536212921142578125,
            "lon": 28.44350920000000115805960376746952533721923828125
        },
        "time_window": {
            "start_ts": "2026-10-20T13:01:39+00:00",
            "end_ts": "2026-10-20T13:31:39+00:00"
        },
        "searched_at": "2026-10-20T19:30:01.757336+00:00",
        "scene_id": "S1D_IW_GRDH_1SDV_20261020T155605_20261020T155630_005101_009A82_0EB9_COG",
        "scene_datetime": "2026-10-20T15:56:05.409425Z",
        "platform": "sentinel-1d",
        "bbox": {
            "min_lon": 23.148630000000000705995262251235544681549072265625,
            "min_lat": 58.76740600000000114278009277768433094024658203125,
            "max_lon": 28.382441000000000030922819860279560089111328125,
            "max_lat": 60.69580500000000000682121026329696178436279296875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1541064_thumbnail_20261020193006.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1541064_thumbnail_20261020193006.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Ust-Luga Terminal Complex Oct 20, 2026 12:37 UTC 85/100
Vessel A: Korsakov (KORSAKOV) RUSSIA
Vessel B: Vanino (VANINO) RUSSIA
  • Minimum Distance: 14 meters
  • Average Distance: 15 meters
  • Duration: 1 hours
  • Period: 2026-10-20T12:37:02+00:00 to 2026-10-20T13:37:22+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 14m, avg 15m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 14m, avg 15m
Duration15/25Duration 60 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-20T17:30:01.860816+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "min_distance_m": 14.4000000000000003552713678800500929355621337890625,
    "avg_distance_m": 15.300000000000000710542735760100185871124267578125,
    "distance_consistency_m": 0.6999999999999999555910790149937383830547332763671875,
    "duration_minutes": 60.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 3620,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-20T12:37:02+00:00",
        "end": "2026-10-20T13:37:22+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 15m"
            },
            "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 \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 14m, avg 15m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga Terminal Complex, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 59.77195689999999927977114566601812839508056640625,
            "lon": 28.443509999999999848796505830250680446624755859375
        },
        "time_window": {
            "start_ts": "2026-10-20T12:37:02+00:00",
            "end_ts": "2026-10-20T13:37:22+00:00"
        },
        "searched_at": "2026-10-20T17:30:01.860816+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 20, 2026 12:34 UTC 75.0%
  • Duration: 4h 24m
  • Radius: 1 meters
  • Data Points: 14 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 0.90000000000000002220446049250313080847263336181640625,
    "duration_minutes": 264,
    "points": 14,
    "centroid": {
        "lat": 59.77191239285713919571207952685654163360595703125,
        "lon": 28.44361441428571168898997711949050426483154296875
    },
    "bbox": {
        "min_lat": 59.77190499999999673264028388075530529022216796875,
        "min_lon": 28.443606700000000131467459141276776790618896484375,
        "max_lat": 59.77191669999999845686033950187265872955322265625,
        "max_lon": 28.44362170000000133995854412205517292022705078125
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 20, 2026 12:34 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 4h 24m
  • Data Points: 14 AIS positions
  • Period: 2026-10-20T12:34:39+00:00 to 2026-10-20T16:58:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 264,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-10-20T12:34:39+00:00",
        "lat": 59.77191169999999686979208490811288356781005859375,
        "lon": 28.443613299999999100009517860598862171173095703125
    },
    "last_point": {
        "ts": "2026-10-20T16:58:39+00:00",
        "lat": 59.77191169999999686979208490811288356781005859375,
        "lon": 28.44361669999999975289028952829539775848388671875
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 20, 2026 11:04 UTC 75.0%
  • Duration: 5h 54m
  • Radius: 1 meters
  • Data Points: 15 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 0.90000000000000002220446049250313080847263336181640625,
    "duration_minutes": 354,
    "points": 15,
    "centroid": {
        "lat": 59.77191234666667440933451871387660503387451171875,
        "lon": 28.443614786666667981762657291255891323089599609375
    },
    "bbox": {
        "min_lat": 59.77190499999999673264028388075530529022216796875,
        "min_lon": 28.443606700000000131467459141276776790618896484375,
        "max_lat": 59.77191669999999845686033950187265872955322265625,
        "max_lon": 28.44362170000000133995854412205517292022705078125
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Zone Dwell Ust-Luga Terminal Complex Oct 20, 2026 11:04 UTC 80.0%
  • Zone: Ust-Luga Terminal Complex
  • Duration: 5h 54m
  • Data Points: 15 AIS positions
  • Period: 2026-10-20T11:04:39+00:00 to 2026-10-20T16:58:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 354,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-10-20T11:04:39+00:00",
        "lat": 59.77191169999999686979208490811288356781005859375,
        "lon": 28.443619999999999237161318887956440448760986328125
    },
    "last_point": {
        "ts": "2026-10-20T16:58:39+00:00",
        "lat": 59.77191169999999686979208490811288356781005859375,
        "lon": 28.44361669999999975289028952829539775848388671875
    }
}

Methodology: 2026.01.18

Sts Ust-Luga Terminal Complex Oct 20, 2026 11:04 UTC 95/100
Vessel A: Vanino (VANINO) RUSSIA
Vessel B: Korsakov (KORSAKOV) RUSSIA
  • Minimum Distance: 13 meters
  • Average Distance: 15 meters
  • Duration: 2h 27m
  • Period: 2026-10-20T11:04:39+00:00 to 2026-10-20T13:31:39+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga Terminal Complex

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 13m, avg 15m) for 147 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga Terminal Complex, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 13m, avg 15m
Duration25/25Duration 147 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "min_distance_m": 13.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 14.699999999999999289457264239899814128875732421875,
    "distance_consistency_m": 0.6999999999999999555910790149937383830547332763671875,
    "duration_minutes": 147,
    "overlap_duration_s": 8820,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-10-20T11:04:39+00:00",
        "end": "2026-10-20T13:31:39+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 13m, avg 15m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 147 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 13m, avg 15m) for 147 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga Terminal Complex, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Ust-Luga Terminal Complex Oct 20, 2026 10:34 UTC 75.0%
  • Duration: 6h 24m
  • Radius: 1 meters
  • Data Points: 16 AIS positions
  • Centroid: 59.7719, 28.4436
  • Zone: Ust-Luga Terminal Complex
Show Raw Evidence JSON
{
    "radius_m": 0.90000000000000002220446049250313080847263336181640625,
    "duration_minutes": 384,
    "points": 16,
    "centroid": {
        "lat": 59.7719119937500096284566097892820835113525390625,
        "lon": 28.443615112500001629314283491112291812896728515625
    },
    "bbox": {
        "min_lat": 59.77190499999999673264028388075530529022216796875,
        "min_lon": 28.443606700000000131467459141276776790618896484375,
        "max_lat": 59.77191669999999845686033950187265872955322265625,
        "max_lon": 28.44362170000000133995854412205517292022705078125
    },
    "zone_id": "russia_ust_luga"
}

Methodology: 2026.01.18

Sanctioned on the same day