SEVERYANKA

IMO 8929472

Vessel information

Vessel Name SEVERYANKA
IMO Number 8929472
MMSI 273449020
Vessel Type Tanker
Flag 🇷🇺 RUSSIA
Length 61 m
Beam 11 m

Detected Events (40)

Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 23, 2026 07:00 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 3h 13m
  • Data Points: 3 AIS positions
  • Period: 2026-09-23T07:00:08+00:00 to 2026-09-23T10:13:49+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 193.69999999999998863131622783839702606201171875,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-09-23T07:00:08+00:00",
        "lat": 59.88084500000000076624928624369204044342041015625,
        "lon": 30.1865532999999999219653545878827571868896484375
    },
    "last_point": {
        "ts": "2026-09-23T10:13:49+00:00",
        "lat": 59.88079330000000055633790907450020313262939453125,
        "lon": 30.186554999999998472048901021480560302734375
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 23, 2026 06:02 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 4h 11m
  • Data Points: 18 AIS positions
  • Period: 2026-09-23T06:02:09+00:00 to 2026-09-23T10:13:49+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 251.69999999999998863131622783839702606201171875,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-09-23T06:02:09+00:00",
        "lat": 59.88083999999999917918103164993226528167724609375,
        "lon": 30.186544999999998850626070634461939334869384765625
    },
    "last_point": {
        "ts": "2026-09-23T10:13:49+00:00",
        "lat": 59.88079330000000055633790907450020313262939453125,
        "lon": 30.186554999999998472048901021480560302734375
    }
}
Methodology: 2026.01.18
Loiter Ust-Luga/St. Petersburg Approach
Sep 23, 2026 06:02 UTC 75.0% ▼
  • Duration: 4h 11m
  • Radius: 4 meters
  • Data Points: 18 AIS positions
  • Centroid: 59.8808, 30.1866
  • Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "radius_m": 3.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 251.69999999999998863131622783839702606201171875,
    "points": 18,
    "centroid": {
        "lat": 59.880828600000000960790202952921390533447265625,
        "lon": 30.1865523222222265076197800226509571075439453125
    },
    "bbox": {
        "min_lat": 59.88079330000000055633790907450020313262939453125,
        "min_lon": 30.18654000000000081627149484120309352874755859375,
        "max_lat": 59.88085670000000249046934186480939388275146484375,
        "max_lon": 30.186565000000001646185410209000110626220703125
    },
    "zone_id": "russia_ust_luga_approach"
}
Methodology: 2026.01.18
Sts Ust-Luga/St. Petersburg Approach
Sep 23, 2026 05:08 UTC 75/100 ▼
Vessel A: FEI YUN HE (FEI YUN HE) Cameroon
Vessel B: IMO 8929472 (SEVERYANKA) RUSSIA
  • Minimum Distance: 353 meters
  • Average Distance: 362 meters
  • Duration: 1h 49m
  • Period: 2026-09-23T05:13:02+00:00 to 2026-09-23T07:02:41+00:00
  • Vessel A Avg Speed: 0.4 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ust-Luga/St. Petersburg Approach

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (FEI YUN HE and SEVERYANKA) maintained close proximity (min 353m, avg 362m) for 110 minutes. Both vessels were slow-moving (avg speeds 0.4 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga/St. Petersburg Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness10/25Min distance 353m, avg 362m
Duration20/25Duration 110 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613425603,
        "imo": 9263198,
        "name": "FEI YUN HE",
        "flag": "Cameroon"
    },
    "vessel_b": {
        "mmsi": 273449020,
        "imo": 8929472,
        "name": "SEVERYANKA",
        "flag": "RUSSIA"
    },
    "min_distance_m": 352.6000000000000227373675443232059478759765625,
    "avg_distance_m": 361.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 4.5,
    "duration_minutes": 109.7000000000000028421709430404007434844970703125,
    "overlap_duration_s": 6579,
    "speed_a_avg": 0.35999999999999998667732370449812151491641998291015625,
    "speed_a_std": 0.289999999999999980015985556747182272374629974365234375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.35999999999999998667732370449812151491641998291015625,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-23T05:13:02+00:00",
        "end": "2026-09-23T07:02:41+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 353m, avg 362m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 110 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga\/St. Petersburg Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (FEI YUN HE and SEVERYANKA) maintained close proximity (min 353m, avg 362m) for 110 minutes. Both vessels were slow-moving (avg speeds 0.4 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ust-Luga\/St. Petersburg Approach, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 23, 2026 05:02 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 5h 11m
  • Data Points: 35 AIS positions
  • Period: 2026-09-23T05:02:09+00:00 to 2026-09-23T10:13:49+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 311.69999999999998863131622783839702606201171875,
    "points_in_zone": 35,
    "first_point": {
        "ts": "2026-09-23T05:02:09+00:00",
        "lat": 59.88083499999999759211277705617249011993408203125,
        "lon": 30.186511700000000502086550113745033740997314453125
    },
    "last_point": {
        "ts": "2026-09-23T10:13:49+00:00",
        "lat": 59.88079330000000055633790907450020313262939453125,
        "lon": 30.186554999999998472048901021480560302734375
    }
}
Methodology: 2026.01.18
Loiter Ust-Luga/St. Petersburg Approach
Sep 23, 2026 05:02 UTC 75.0% ▼
  • Duration: 5h 11m
  • Radius: 4 meters
  • Data Points: 35 AIS positions
  • Centroid: 59.8808, 30.1865
  • Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "radius_m": 4.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 311.69999999999998863131622783839702606201171875,
    "points": 35,
    "centroid": {
        "lat": 59.8808305685714259425367345102131366729736328125,
        "lon": 30.18653738285714638323042890988290309906005859375
    },
    "bbox": {
        "min_lat": 59.88079330000000055633790907450020313262939453125,
        "min_lon": 30.186493299999998640714693465270102024078369140625,
        "max_lat": 59.88085670000000249046934186480939388275146484375,
        "max_lon": 30.186565000000001646185410209000110626220703125
    },
    "zone_id": "russia_ust_luga_approach"
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 23, 2026 04:14 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 5h 58m
  • Data Points: 48 AIS positions
  • Period: 2026-09-23T04:14:59+00:00 to 2026-09-23T10:13:49+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 358.80000000000001136868377216160297393798828125,
    "points_in_zone": 48,
    "first_point": {
        "ts": "2026-09-23T04:14:59+00:00",
        "lat": 59.881000000000000227373675443232059478759765625,
        "lon": 30.18730000000000046611603465862572193145751953125
    },
    "last_point": {
        "ts": "2026-09-23T10:13:49+00:00",
        "lat": 59.88079330000000055633790907450020313262939453125,
        "lon": 30.186554999999998472048901021480560302734375
    }
}
Methodology: 2026.01.18
Loiter Ust-Luga/St. Petersburg Approach
Sep 23, 2026 04:14 UTC 75.0% ▼
  • Duration: 5h 58m
  • Radius: 44 meters
  • Data Points: 48 AIS positions
  • Centroid: 59.8808, 30.1866
  • Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "radius_m": 44.10000000000000142108547152020037174224853515625,
    "duration_minutes": 358.80000000000001136868377216160297393798828125,
    "points": 48,
    "centroid": {
        "lat": 59.8808424625000270680175162851810455322265625,
        "lon": 30.186577435416669601409012102521955966949462890625
    },
    "bbox": {
        "min_lat": 59.88079330000000055633790907450020313262939453125,
        "min_lon": 30.186493299999998640714693465270102024078369140625,
        "max_lat": 59.881000000000000227373675443232059478759765625,
        "max_lon": 30.18730000000000046611603465862572193145751953125
    },
    "zone_id": "russia_ust_luga_approach"
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 21, 2026 18:03 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 1h 19m
  • Data Points: 15 AIS positions
  • Period: 2026-09-21T18:03:17+00:00 to 2026-09-21T19:22:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 79.2000000000000028421709430404007434844970703125,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-09-21T18:03:17+00:00",
        "lat": 59.879216700000000628278939984738826751708984375,
        "lon": 30.201756700000000677164280205033719539642333984375
    },
    "last_point": {
        "ts": "2026-09-21T19:22:29+00:00",
        "lat": 59.87922999999999973397279973141849040985107421875,
        "lon": 30.201816699999998405701262527145445346832275390625
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 21, 2026 17:25 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 1h 57m
  • Data Points: 23 AIS positions
  • Period: 2026-09-21T17:25:18+00:00 to 2026-09-21T19:22:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 117.2000000000000028421709430404007434844970703125,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-09-21T17:25:18+00:00",
        "lat": 59.87955000000000183035808731801807880401611328125,
        "lon": 30.199446699999999310648490791209042072296142578125
    },
    "last_point": {
        "ts": "2026-09-21T19:22:29+00:00",
        "lat": 59.87922999999999973397279973141849040985107421875,
        "lon": 30.201816699999998405701262527145445346832275390625
    }
}
Methodology: 2026.01.18
Loiter Ust-Luga/St. Petersburg Approach
Sep 21, 2026 17:25 UTC 75.0% ▼
  • Duration: 1h 57m
  • Radius: 116 meters
  • Data Points: 23 AIS positions
  • Centroid: 59.8793, 30.2014
  • Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "radius_m": 116.2999999999999971578290569595992565155029296875,
    "duration_minutes": 117.2000000000000028421709430404007434844970703125,
    "points": 23,
    "centroid": {
        "lat": 59.87926739565217104654948343522846698760986328125,
        "lon": 30.201445221739124491477923584170639514923095703125
    },
    "bbox": {
        "min_lat": 59.8792150000000020781953935511410236358642578125,
        "min_lon": 30.199446699999999310648490791209042072296142578125,
        "max_lat": 59.87955000000000183035808731801807880401611328125,
        "max_lon": 30.20183829999999858273440622724592685699462890625
    },
    "zone_id": "russia_ust_luga_approach"
}
Methodology: 2026.01.18
Ais Gap🛰️✓ Ust-Luga/St. Petersburg Approach
Sep 21, 2026 11:16 UTC 70.0% ▼
  • Gap Duration: 6h 8m
  • Last Seen: 2026-09-21T11:16:58+00:00 at 59.8999, 30.2198 (Zone: Ust-Luga/St. Petersburg Approach)
  • Next Seen: 2026-09-21T17:25:18+00:00 at 59.8796, 30.1994

🛰️ 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: S1D_IW_GRDH_1SDV_20260921T154756_20260921T154821_004678_008BD8_C6AD_COG • Time: 2026-09-21T15:47:56.493819Z

SAR preview

SAR coverage thumbnail

VIIRS Thermal Anomaly

Status: ✗ No detections

No VIIRS thermal/light detections in corridor

Searched: 2026-09-21T17:45:01.257041+00:00

Show Raw Evidence JSON
{
    "gap_minutes": 368.30000000000001136868377216160297393798828125,
    "last_seen": {
        "ts": "2026-09-21T11:16:58+00:00",
        "lat": 59.89987670000000008485585567541420459747314453125,
        "lon": 30.2197800000000000864019966684281826019287109375,
        "sog": 6.29999999999999982236431605997495353221893310546875,
        "zone_id": "russia_ust_luga_approach"
    },
    "next_seen": {
        "ts": "2026-09-21T17:25:18+00:00",
        "lat": 59.87955000000000183035808731801807880401611328125,
        "lon": 30.199446699999999310648490791209042072296142578125,
        "zone_ids": [
            "russia_ust_luga_approach"
        ]
    },
    "gap_enrichment": {
        "status": "done",
        "corridor": {
            "start": {
                "lat": 59.89987670000000008485585567541420459747314453125,
                "lon": 30.2197800000000000864019966684281826019287109375,
                "ts": "2026-09-21T11:16:58+00:00"
            },
            "end": {
                "lat": 59.87955000000000183035808731801807880401611328125,
                "lon": 30.199446699999999310648490791209042072296142578125,
                "ts": "2026-09-21T17:25:18+00:00"
            },
            "bbox": {
                "min_lat": 59.6993700000000018235368770547211170196533203125,
                "min_lon": 29.84028299999999944702722132205963134765625,
                "max_lat": 60.0800569999999964920789352618157863616943359375,
                "max_lon": 30.57894399999999990313881426118314266204833984375
            },
            "buffer_km": 20
        },
        "sar": {
            "status": "snapshot",
            "scene_id": "S1D_IW_GRDH_1SDV_20260921T154756_20260921T154821_004678_008BD8_C6AD_COG",
            "scene_time": "2026-09-21T15:47:56.493819Z",
            "platform": "sentinel-1d",
            "assets": {
                "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1361416_thumbnail_20260921174506.png",
                "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1361416_thumbnail_20260921174506.png",
                "source": "copernicus_dataspace"
            },
            "notes": "SAR snapshot available for review"
        },
        "viirs": {
            "status": "not_found",
            "notes": "No VIIRS thermal\/light detections in corridor"
        },
        "searched_at": "2026-09-21T17:45:01.257041+00:00"
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 21, 2026 11:05 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 6h 35m
  • Data Points: 10 AIS positions
  • Period: 2026-09-21T11:10:38+00:00 to 2026-09-21T17:46:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 395.6000000000000227373675443232059478759765625,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-09-21T11:10:38+00:00",
        "lat": 59.90882500000000021600499167107045650482177734375,
        "lon": 30.23142169999999850915628485381603240966796875
    },
    "last_point": {
        "ts": "2026-09-21T17:46:17+00:00",
        "lat": 59.879248300000000426734914071857929229736328125,
        "lon": 30.201440000000001617763700778596103191375732421875
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 18, 2026 06:28 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 1h 7m
  • Data Points: 4 AIS positions
  • Period: 2026-09-18T06:28:34+00:00 to 2026-09-18T07:36:15+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 67.7000000000000028421709430404007434844970703125,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-09-18T06:28:34+00:00",
        "lat": 59.8890932999999989760908647440373897552490234375,
        "lon": 30.212178300000001485159373260103166103363037109375
    },
    "last_point": {
        "ts": "2026-09-18T07:36:15+00:00",
        "lat": 59.88908670000000000754880602471530437469482421875,
        "lon": 30.212181699999998585326466127298772335052490234375
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 18, 2026 05:22 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 2h 13m
  • Data Points: 6 AIS positions
  • Period: 2026-09-18T05:22:24+00:00 to 2026-09-18T07:36:15+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 133.80000000000001136868377216160297393798828125,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-09-18T05:22:24+00:00",
        "lat": 59.889043299999997316263034008443355560302734375,
        "lon": 30.212295000000001010675987345166504383087158203125
    },
    "last_point": {
        "ts": "2026-09-18T07:36:15+00:00",
        "lat": 59.88908670000000000754880602471530437469482421875,
        "lon": 30.212181699999998585326466127298772335052490234375
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 18, 2026 04:53 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 2h 43m
  • Data Points: 7 AIS positions
  • Period: 2026-09-18T04:53:05+00:00 to 2026-09-18T07:36:15+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 163.19999999999998863131622783839702606201171875,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-09-18T04:53:05+00:00",
        "lat": 59.8890482999999989033312886022031307220458984375,
        "lon": 30.212431699999999779038262204267084598541259765625
    },
    "last_point": {
        "ts": "2026-09-18T07:36:15+00:00",
        "lat": 59.88908670000000000754880602471530437469482421875,
        "lon": 30.212181699999998585326466127298772335052490234375
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 18, 2026 03:53 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 3h 42m
  • Data Points: 8 AIS positions
  • Period: 2026-09-18T03:53:35+00:00 to 2026-09-18T07:36:15+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 222.69999999999998863131622783839702606201171875,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-09-18T03:53:35+00:00",
        "lat": 59.889105000000000700310920365154743194580078125,
        "lon": 30.212219999999998520934241241775453090667724609375
    },
    "last_point": {
        "ts": "2026-09-18T07:36:15+00:00",
        "lat": 59.88908670000000000754880602471530437469482421875,
        "lon": 30.212181699999998585326466127298772335052490234375
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 18, 2026 02:01 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 5h 34m
  • Data Points: 15 AIS positions
  • Period: 2026-09-18T02:01:54+00:00 to 2026-09-18T07:36:15+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 334.3999999999999772626324556767940521240234375,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-09-18T02:01:54+00:00",
        "lat": 59.88907669999999683341229683719575405120849609375,
        "lon": 30.212206699999999415240381495095789432525634765625
    },
    "last_point": {
        "ts": "2026-09-18T07:36:15+00:00",
        "lat": 59.88908670000000000754880602471530437469482421875,
        "lon": 30.212181699999998585326466127298772335052490234375
    }
}
Methodology: 2026.01.18
Loiter Ust-Luga/St. Petersburg Approach
Sep 18, 2026 02:01 UTC 75.0% ▼
  • Duration: 5h 34m
  • Radius: 12 meters
  • Data Points: 15 AIS positions
  • Centroid: 59.8891, 30.2122
  • Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "radius_m": 12.199999999999999289457264239899814128875732421875,
    "duration_minutes": 334.3999999999999772626324556767940521240234375,
    "points": 15,
    "centroid": {
        "lat": 59.8890795533333317735014134086668491363525390625,
        "lon": 30.212222880000002334099917788989841938018798828125
    },
    "bbox": {
        "min_lat": 59.889043299999997316263034008443355560302734375,
        "min_lon": 30.212178300000001485159373260103166103363037109375,
        "max_lat": 59.889105000000000700310920365154743194580078125,
        "max_lon": 30.212431699999999779038262204267084598541259765625
    },
    "zone_id": "russia_ust_luga_approach"
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 18, 2026 01:58 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 5h 38m
  • Data Points: 16 AIS positions
  • Period: 2026-09-18T01:58:05+00:00 to 2026-09-18T07:36:15+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 338.19999999999998863131622783839702606201171875,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-09-18T01:58:05+00:00",
        "lat": 59.88907669999999683341229683719575405120849609375,
        "lon": 30.2122083000000003494278644211590290069580078125
    },
    "last_point": {
        "ts": "2026-09-18T07:36:15+00:00",
        "lat": 59.88908670000000000754880602471530437469482421875,
        "lon": 30.212181699999998585326466127298772335052490234375
    }
}
Methodology: 2026.01.18
Loiter Ust-Luga/St. Petersburg Approach
Sep 18, 2026 01:58 UTC 75.0% ▼
  • Duration: 5h 38m
  • Radius: 12 meters
  • Data Points: 16 AIS positions
  • Centroid: 59.8891, 30.2122
  • Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "radius_m": 12.199999999999999289457264239899814128875732421875,
    "duration_minutes": 338.19999999999998863131622783839702606201171875,
    "points": 16,
    "centroid": {
        "lat": 59.88907937499999434294295497238636016845703125,
        "lon": 30.2122219687500006557456799782812595367431640625
    },
    "bbox": {
        "min_lat": 59.889043299999997316263034008443355560302734375,
        "min_lon": 30.212178300000001485159373260103166103363037109375,
        "max_lat": 59.889105000000000700310920365154743194580078125,
        "max_lon": 30.212431699999999779038262204267084598541259765625
    },
    "zone_id": "russia_ust_luga_approach"
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 18, 2026 00:00 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 6h 28m
  • Data Points: 14 AIS positions
  • Period: 2026-09-18T00:00:35+00:00 to 2026-09-18T06:28:34+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 388,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-09-18T00:00:35+00:00",
        "lat": 59.88965329999999909205143922008574008941650390625,
        "lon": 30.21394670000000104437276604585349559783935546875
    },
    "last_point": {
        "ts": "2026-09-18T06:28:34+00:00",
        "lat": 59.8890932999999989760908647440373897552490234375,
        "lon": 30.212178300000001485159373260103166103363037109375
    }
}
Methodology: 2026.01.18
Loiter Ust-Luga/St. Petersburg Approach
Sep 18, 2026 00:00 UTC 75.0% ▼
  • Duration: 6h 28m
  • Radius: 107 meters
  • Data Points: 14 AIS positions
  • Centroid: 59.8891, 30.2124
  • Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "radius_m": 107.2000000000000028421709430404007434844970703125,
    "duration_minutes": 388,
    "points": 14,
    "centroid": {
        "lat": 59.88912118571429488156354636885225772857666015625,
        "lon": 30.212352371428575992240439518354833126068115234375
    },
    "bbox": {
        "min_lat": 59.889043299999997316263034008443355560302734375,
        "min_lon": 30.212178300000001485159373260103166103363037109375,
        "max_lat": 59.88965329999999909205143922008574008941650390625,
        "max_lon": 30.21394670000000104437276604585349559783935546875
    },
    "zone_id": "russia_ust_luga_approach"
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 17, 2026 22:49 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 6h 3m
  • Data Points: 12 AIS positions
  • Period: 2026-09-17T22:49:14+00:00 to 2026-09-18T04:53:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 363.8999999999999772626324556767940521240234375,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-09-17T22:49:14+00:00",
        "lat": 59.8912667000000027428541216067969799041748046875,
        "lon": 30.22042330000000021072992240078747272491455078125
    },
    "last_point": {
        "ts": "2026-09-18T04:53:05+00:00",
        "lat": 59.8890482999999989033312886022031307220458984375,
        "lon": 30.212431699999999779038262204267084598541259765625
    }
}
Methodology: 2026.01.18
Loiter Ust-Luga/St. Petersburg Approach
Sep 17, 2026 22:49 UTC 75.0% ▼
  • Duration: 6h 3m
  • Radius: 467 meters
  • Data Points: 12 AIS positions
  • Centroid: 59.8893, 30.2131
  • Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "radius_m": 466.5,
    "duration_minutes": 363.8999999999999772626324556767940521240234375,
    "points": 12,
    "centroid": {
        "lat": 59.88931070000000289610397885553538799285888671875,
        "lon": 30.213055408333335805082242586649954319000244140625
    },
    "bbox": {
        "min_lat": 59.8890482999999989033312886022031307220458984375,
        "min_lon": 30.212198300000000728005034034140408039093017578125,
        "max_lat": 59.8912667000000027428541216067969799041748046875,
        "max_lon": 30.22042330000000021072992240078747272491455078125
    },
    "zone_id": "russia_ust_luga_approach"
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 16, 2026 12:04 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 2h 20m
  • Data Points: 8 AIS positions
  • Period: 2026-09-16T12:04:14+00:00 to 2026-09-16T14:24:44+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 140.5,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-09-16T12:04:14+00:00",
        "lat": 59.87876330000000280051608569920063018798828125,
        "lon": 30.190311699999998751309249200858175754547119140625
    },
    "last_point": {
        "ts": "2026-09-16T14:24:44+00:00",
        "lat": 59.87875669999999672654666937887668609619140625,
        "lon": 30.190325000000001409716787748038768768310546875
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 11, 2026 19:02 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 1h 53m
  • Data Points: 23 AIS positions
  • Period: 2026-09-11T19:02:44+00:00 to 2026-09-11T20:56:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 113.2999999999999971578290569595992565155029296875,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-09-11T19:02:44+00:00",
        "lat": 59.8891933000000022957465262152254581451416015625,
        "lon": 30.21233170000000001209627953357994556427001953125
    },
    "last_point": {
        "ts": "2026-09-11T20:56:04+00:00",
        "lat": 59.88917169999999856599970371462404727935791015625,
        "lon": 30.212334999999999496367308893240988254547119140625
    }
}
Methodology: 2026.01.18
Loiter Ust-Luga/St. Petersburg Approach
Sep 11, 2026 19:02 UTC 75.0% ▼
  • Duration: 1h 53m
  • Radius: 5 meters
  • Data Points: 23 AIS positions
  • Centroid: 59.8892, 30.2123
  • Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "radius_m": 5.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 113.2999999999999971578290569595992565155029296875,
    "points": 23,
    "centroid": {
        "lat": 59.889217034782603832354652695357799530029296875,
        "lon": 30.212331952173915539106019423343241214752197265625
    },
    "bbox": {
        "min_lat": 59.88917169999999856599970371462404727935791015625,
        "min_lon": 30.212303299999998529301592498086392879486083984375,
        "max_lat": 59.88924829999999843721525394357740879058837890625,
        "max_lon": 30.212354999999998739212969667278230190277099609375
    },
    "zone_id": "russia_ust_luga_approach"
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 11, 2026 18:04 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 2h 52m
  • Data Points: 32 AIS positions
  • Period: 2026-09-11T18:04:03+00:00 to 2026-09-11T20:56:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 172,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-09-11T18:04:03+00:00",
        "lat": 59.88920329999999836445567780174314975738525390625,
        "lon": 30.212346700000001220587364514358341693878173828125
    },
    "last_point": {
        "ts": "2026-09-11T20:56:04+00:00",
        "lat": 59.88917169999999856599970371462404727935791015625,
        "lon": 30.212334999999999496367308893240988254547119140625
    }
}
Methodology: 2026.01.18
Loiter Ust-Luga/St. Petersburg Approach
Sep 11, 2026 18:04 UTC 75.0% ▼
  • Duration: 2h 52m
  • Radius: 5 meters
  • Data Points: 32 AIS positions
  • Centroid: 59.8892, 30.2123
  • Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "radius_m": 4.5,
    "duration_minutes": 172,
    "points": 32,
    "centroid": {
        "lat": 59.88920942812499248475432978011667728424072265625,
        "lon": 30.212334112500006000345820211805403232574462890625
    },
    "bbox": {
        "min_lat": 59.88917169999999856599970371462404727935791015625,
        "min_lon": 30.212303299999998529301592498086392879486083984375,
        "max_lat": 59.88924829999999843721525394357740879058837890625,
        "max_lon": 30.212354999999998739212969667278230190277099609375
    },
    "zone_id": "russia_ust_luga_approach"
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 11, 2026 17:04 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 3h 51m
  • Data Points: 41 AIS positions
  • Period: 2026-09-11T17:04:23+00:00 to 2026-09-11T20:56:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 231.69999999999998863131622783839702606201171875,
    "points_in_zone": 41,
    "first_point": {
        "ts": "2026-09-11T17:04:23+00:00",
        "lat": 59.88917330000000305290086544118821620941162109375,
        "lon": 30.2125316999999995459802448749542236328125
    },
    "last_point": {
        "ts": "2026-09-11T20:56:04+00:00",
        "lat": 59.88917169999999856599970371462404727935791015625,
        "lon": 30.212334999999999496367308893240988254547119140625
    }
}
Methodology: 2026.01.18
Loiter Ust-Luga/St. Petersburg Approach
Sep 11, 2026 17:04 UTC 75.0% ▼
  • Duration: 3h 51m
  • Radius: 11 meters
  • Data Points: 41 AIS positions
  • Centroid: 59.8892, 30.2123
  • Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "radius_m": 10.800000000000000710542735760100185871124267578125,
    "duration_minutes": 231.69999999999998863131622783839702606201171875,
    "points": 41,
    "centroid": {
        "lat": 59.88920365853656591070830472745001316070556640625,
        "lon": 30.21234902682926559691622969694435596466064453125
    },
    "bbox": {
        "min_lat": 59.8891617000000024972905521281063556671142578125,
        "min_lon": 30.212303299999998529301592498086392879486083984375,
        "max_lat": 59.88924829999999843721525394357740879058837890625,
        "max_lon": 30.2125316999999995459802448749542236328125
    },
    "zone_id": "russia_ust_luga_approach"
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 11, 2026 16:19 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 4h 36m
  • Data Points: 46 AIS positions
  • Period: 2026-09-11T16:19:23+00:00 to 2026-09-11T20:56:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 276.69999999999998863131622783839702606201171875,
    "points_in_zone": 46,
    "first_point": {
        "ts": "2026-09-11T16:19:23+00:00",
        "lat": 59.88927499999999781721271574497222900390625,
        "lon": 30.21474500000000062982508097775280475616455078125
    },
    "last_point": {
        "ts": "2026-09-11T20:56:04+00:00",
        "lat": 59.88917169999999856599970371462404727935791015625,
        "lon": 30.212334999999999496367308893240988254547119140625
    }
}
Methodology: 2026.01.18
Loiter Ust-Luga/St. Petersburg Approach
Sep 11, 2026 16:19 UTC 75.0% ▼
  • Duration: 4h 36m
  • Radius: 128 meters
  • Data Points: 46 AIS positions
  • Centroid: 59.8892, 30.2125
  • Zone: Ust-Luga/St. Petersburg Approach
Show Raw Evidence JSON
{
    "radius_m": 127.7999999999999971578290569595992565155029296875,
    "duration_minutes": 276.69999999999998863131622783839702606201171875,
    "points": 46,
    "centroid": {
        "lat": 59.88920554130434226181023404933512210845947265625,
        "lon": 30.2124664173912975684288539923727512359619140625
    },
    "bbox": {
        "min_lat": 59.8891617000000024972905521281063556671142578125,
        "min_lon": 30.212303299999998529301592498086392879486083984375,
        "max_lat": 59.88927499999999781721271574497222900390625,
        "max_lon": 30.21474500000000062982508097775280475616455078125
    },
    "zone_id": "russia_ust_luga_approach"
}
Methodology: 2026.01.18
Ais Gap🛰️✓ Ust-Luga/St. Petersburg Approach
Sep 5, 2026 14:27 UTC 70.0% ▼
  • Gap Duration: 6h 13m
  • Last Seen: 2026-09-05T14:27:53+00:00 at 59.8850, 30.2245 (Zone: Ust-Luga/St. Petersburg Approach)
  • Next Seen: 2026-09-05T20:41:32+00:00 at 59.8953, 30.2278

🛰️ 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_20260905T153123_20260905T153148_009314_012846_8E23_COG • Time: 2026-09-05T15:31:23.309243Z

SAR preview

SAR coverage thumbnail

VIIRS Thermal Anomaly

Status: ✗ No detections

No VIIRS thermal/light detections in corridor

Searched: 2026-09-05T21:00:01.481084+00:00

Show Raw Evidence JSON
{
    "gap_minutes": 373.6000000000000227373675443232059478759765625,
    "last_seen": {
        "ts": "2026-09-05T14:27:53+00:00",
        "lat": 59.88496500000000111185727291740477085113525390625,
        "lon": 30.224476700000000306545189232565462589263916015625,
        "sog": 3.600000000000000088817841970012523233890533447265625,
        "zone_id": "russia_ust_luga_approach"
    },
    "next_seen": {
        "ts": "2026-09-05T20:41:32+00:00",
        "lat": 59.89529830000000032441676012240350246429443359375,
        "lon": 30.227848300000001557918949401937425136566162109375,
        "zone_ids": [
            "russia_ust_luga_approach"
        ]
    },
    "gap_enrichment": {
        "status": "done",
        "corridor": {
            "start": {
                "lat": 59.88496500000000111185727291740477085113525390625,
                "lon": 30.224476700000000306545189232565462589263916015625,
                "ts": "2026-09-05T14:27:53+00:00"
            },
            "end": {
                "lat": 59.89529830000000032441676012240350246429443359375,
                "lon": 30.227848300000001557918949401937425136566162109375,
                "ts": "2026-09-05T20:41:32+00:00"
            },
            "bbox": {
                "min_lat": 59.7047850000000011050360626541078090667724609375,
                "min_lon": 29.865308999999999883812051848508417606353759765625,
                "max_lat": 60.07547799999999682540874346159398555755615234375,
                "max_lon": 30.58701599999999842793840798549354076385498046875
            },
            "buffer_km": 20
        },
        "sar": {
            "status": "snapshot",
            "scene_id": "S1C_IW_GRDH_1SDV_20260905T153123_20260905T153148_009314_012846_8E23_COG",
            "scene_time": "2026-09-05T15:31:23.309243Z",
            "platform": "sentinel-1c",
            "assets": {
                "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1220542_thumbnail_20260905210006.png",
                "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1220542_thumbnail_20260905210006.png",
                "source": "copernicus_dataspace"
            },
            "notes": "SAR snapshot available for review"
        },
        "viirs": {
            "status": "not_found",
            "notes": "No VIIRS thermal\/light detections in corridor"
        },
        "searched_at": "2026-09-05T21:00:01.481084+00:00"
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 5, 2026 14:27 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 6h 13m
  • Data Points: 2 AIS positions
  • Period: 2026-09-05T14:27:53+00:00 to 2026-09-05T20:41:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 373.6000000000000227373675443232059478759765625,
    "points_in_zone": 2,
    "first_point": {
        "ts": "2026-09-05T14:27:53+00:00",
        "lat": 59.88496500000000111185727291740477085113525390625,
        "lon": 30.224476700000000306545189232565462589263916015625
    },
    "last_point": {
        "ts": "2026-09-05T20:41:32+00:00",
        "lat": 59.89529830000000032441676012240350246429443359375,
        "lon": 30.227848300000001557918949401937425136566162109375
    }
}
Methodology: 2026.01.18
Ais Gap🛰️✓ Ust-Luga/St. Petersburg Approach
Sep 4, 2026 04:53 UTC 70.0% ▼
  • Gap Duration: 4h 53m
  • Last Seen: 2026-09-04T04:53:45+00:00 at 59.8735, 30.2058 (Zone: Ust-Luga/St. Petersburg Approach)
  • Next Seen: 2026-09-04T09:47:39+00:00 at 59.8730, 30.2054

🛰️ 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: S1D_IW_GRDH_1SDV_20260904T042458_20260904T042523_004423_008311_C3D2_COG • Time: 2026-09-04T04:24:58.252771Z

SAR preview

SAR coverage thumbnail

VIIRS Thermal Anomaly

Status: ✗ No detections

No VIIRS thermal/light detections in corridor

Searched: 2026-09-04T10:00:02.214907+00:00

Show Raw Evidence JSON
{
    "gap_minutes": 293.8999999999999772626324556767940521240234375,
    "last_seen": {
        "ts": "2026-09-04T04:53:45+00:00",
        "lat": 59.8735233000000022229869500733911991119384765625,
        "lon": 30.205770000000001118678483180701732635498046875,
        "sog": 5.79999999999999982236431605997495353221893310546875,
        "zone_id": "russia_ust_luga_approach"
    },
    "next_seen": {
        "ts": "2026-09-04T09:47:39+00:00",
        "lat": 59.87303829999999749134076409973204135894775390625,
        "lon": 30.205380000000001672333382884971797466278076171875,
        "zone_ids": [
            "russia_ust_luga_approach"
        ]
    },
    "gap_enrichment": {
        "status": "done",
        "corridor": {
            "start": {
                "lat": 59.8735233000000022229869500733911991119384765625,
                "lon": 30.205770000000001118678483180701732635498046875,
                "ts": "2026-09-04T04:53:45+00:00"
            },
            "end": {
                "lat": 59.87303829999999749134076409973204135894775390625,
                "lon": 30.205380000000001672333382884971797466278076171875,
                "ts": "2026-09-04T09:47:39+00:00"
            },
            "bbox": {
                "min_lat": 59.6928580000000010841176845133304595947265625,
                "min_lon": 29.846394000000000090722096501849591732025146484375,
                "max_lat": 60.0537029999999987239789334125816822052001953125,
                "max_lon": 30.564755999999999147576090763323009014129638671875
            },
            "buffer_km": 20
        },
        "sar": {
            "status": "snapshot",
            "scene_id": "S1D_IW_GRDH_1SDV_20260904T042458_20260904T042523_004423_008311_C3D2_COG",
            "scene_time": "2026-09-04T04:24:58.252771Z",
            "platform": "sentinel-1d",
            "assets": {
                "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1205462_thumbnail_20260904100008.png",
                "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1205462_thumbnail_20260904100008.png",
                "source": "copernicus_dataspace"
            },
            "notes": "SAR snapshot available for review"
        },
        "viirs": {
            "status": "not_found",
            "notes": "No VIIRS thermal\/light detections in corridor"
        },
        "searched_at": "2026-09-04T10:00:02.214907+00:00"
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 4, 2026 04:49 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 5h 16m
  • Data Points: 6 AIS positions
  • Period: 2026-09-04T04:49:25+00:00 to 2026-09-04T10:05:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 316.30000000000001136868377216160297393798828125,
    "points_in_zone": 6,
    "first_point": {
        "ts": "2026-09-04T04:49:25+00:00",
        "lat": 59.87826170000000303161868941970169544219970703125,
        "lon": 30.194919999999999760120772407390177249908447265625
    },
    "last_point": {
        "ts": "2026-09-04T10:05:45+00:00",
        "lat": 59.8878567000000003872628440149128437042236328125,
        "lon": 30.20611999999999852661858312785625457763671875
    }
}
Methodology: 2026.01.18
Ais Gap🛰️✗ Ust-Luga/St. Petersburg Approach
Sep 1, 2026 17:21 UTC 70.0% ▼
  • Gap Duration: 6h 4m
  • Last Seen: 2026-09-01T17:21:44+00:00 at 59.8762, 30.1998 (Zone: Ust-Luga/St. Petersburg Approach)
  • Next Seen: 2026-09-01T23:26:04+00:00 at 59.8699, 30.2146

🛰️ Gap Corroboration

✗ No Imagery

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

SAR Imagery (Sentinel-1)

Status: ✗ No SAR coverage

No Sentinel-1 scenes covering corridor and time window

VIIRS Thermal Anomaly

Status: ✗ No detections

No VIIRS thermal/light detections in corridor

Searched: 2026-09-01T23:30:13.782361+00:00

Show Raw Evidence JSON
{
    "gap_minutes": 364.30000000000001136868377216160297393798828125,
    "last_seen": {
        "ts": "2026-09-01T17:21:44+00:00",
        "lat": 59.8762167000000005145921022631227970123291015625,
        "lon": 30.19979169999999868423401494510471820831298828125,
        "sog": 5.29999999999999982236431605997495353221893310546875,
        "zone_id": "russia_ust_luga_approach"
    },
    "next_seen": {
        "ts": "2026-09-01T23:26:04+00:00",
        "lat": 59.8699399999999997135091689415276050567626953125,
        "lon": 30.214620000000000032969182939268648624420166015625,
        "zone_ids": [
            "russia_ust_luga_approach"
        ]
    },
    "gap_enrichment": {
        "status": "not_found",
        "corridor": {
            "start": {
                "lat": 59.8762167000000005145921022631227970123291015625,
                "lon": 30.19979169999999868423401494510471820831298828125,
                "ts": "2026-09-01T17:21:44+00:00"
            },
            "end": {
                "lat": 59.8699399999999997135091689415276050567626953125,
                "lon": 30.214620000000000032969182939268648624420166015625,
                "ts": "2026-09-01T23:26:04+00:00"
            },
            "bbox": {
                "min_lat": 59.68975999999999970668795867823064327239990234375,
                "min_lon": 29.840807999999999111651050043292343616485595703125,
                "max_lat": 60.05639699999999692181518184952437877655029296875,
                "max_lon": 30.573603999999999558667695964686572551727294921875
            },
            "buffer_km": 20
        },
        "sar": {
            "status": "not_found",
            "notes": "No Sentinel-1 scenes covering corridor and time window"
        },
        "viirs": {
            "status": "not_found",
            "notes": "No VIIRS thermal\/light detections in corridor"
        },
        "searched_at": "2026-09-01T23:30:13.782361+00:00"
    }
}
Methodology: 2026.01.18
Zone Dwell Ust-Luga/St. Petersburg Approach
Sep 1, 2026 17:21 UTC 80.0% ▼
  • Zone: Ust-Luga/St. Petersburg Approach
  • Duration: 6h 4m
  • Data Points: 2 AIS positions
  • Period: 2026-09-01T17:21:44+00:00 to 2026-09-01T23:26:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_ust_luga_approach",
    "zone_name": "Ust-Luga\/St. Petersburg Approach",
    "dwell_minutes": 364.30000000000001136868377216160297393798828125,
    "points_in_zone": 2,
    "first_point": {
        "ts": "2026-09-01T17:21:44+00:00",
        "lat": 59.8762167000000005145921022631227970123291015625,
        "lon": 30.19979169999999868423401494510471820831298828125
    },
    "last_point": {
        "ts": "2026-09-01T23:26:04+00:00",
        "lat": 59.8699399999999997135091689415276050567626953125,
        "lon": 30.214620000000000032969182939268648624420166015625
    }
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Oct 17 09:18 59.8849 30.2325 0.0 kn 182.0° Ust-Luga/St. Petersburg Approach
Oct 9 09:31 59.8849 30.2325 0.0 kn 33.6° Ust-Luga/St. Petersburg Approach
Oct 7 23:38 59.8849 30.2325 0.0 kn 33.6° Ust-Luga/St. Petersburg Approach
Sep 23 10:13 59.8808 30.1866 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 07:05 59.8809 30.1866 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 07:00 59.8808 30.1866 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:57 59.8808 30.1866 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:50 59.8808 30.1865 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:46 59.8808 30.1866 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:44 59.8808 30.1866 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:39 59.8808 30.1865 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:34 59.8808 30.1865 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:31 59.8808 30.1865 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:28 59.8808 30.1865 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:24 59.8808 30.1866 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:22 59.8808 30.1866 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:18 59.8808 30.1866 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:12 59.8808 30.1866 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:10 59.8808 30.1866 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach
Sep 23 06:06 59.8808 30.1866 0.0 kn 260.4° Ust-Luga/St. Petersburg Approach

Showing 20 of 100 recent positions.

Data Source

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

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