JINSUNG

Vessel information

Vessel Name JINSUNG
MMSI 440192560
Vessel Type Tanker
Flag 🏳️ REPUBLIC OF KOREA
Call Sign 230044

Detected Events (41)

Ais Gap🛰️✓ Strait of Gibraltar Surveillance Zone
Jul 29, 2026 21:49 UTC 70.0% ▼
  • Gap Duration: 5h 44m
  • Last Seen: 2026-07-29T21:49:17+00:00 at 34.9878, 128.8562 (Zone: Strait of Gibraltar Surveillance Zone)
  • Next Seen: 2026-07-30T03:33:39+00:00 at 34.9890, 128.8604

🛰️ 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: ✗ No SAR coverage

No Sentinel-1 scenes covering corridor and time window

VIIRS Thermal Anomaly

Status: ✓ Signal detected

4 thermal/light anomalies detected

Detections: 4 thermal anomalies

View detections
LocationBrightnessTime
35.0963, 128.8622327.6 K2026-07-29T17:32:00+00:00
35.0997, 128.8630317.3 K2026-07-29T17:32:00+00:00
35.0843, 128.9913317.3 K2026-07-29T17:32:00+00:00
35.0809, 128.9905316.5 K2026-07-29T17:32:00+00:00

Searched: 2026-07-30T03:45:05.171112+00:00

Show Raw Evidence JSON
{
    "gap_minutes": 344.3999999999999772626324556767940521240234375,
    "last_seen": {
        "ts": "2026-07-29T21:49:17+00:00",
        "lat": 34.98779329999999987421688274480402469635009765625,
        "lon": 128.85615830000000414656824432313442230224609375,
        "sog": 10.699999999999999289457264239899814128875732421875,
        "zone_id": "discovered_001"
    },
    "next_seen": {
        "ts": "2026-07-30T03:33:39+00:00",
        "lat": 34.98895499999999714191289967857301235198974609375,
        "lon": 128.86038999999999532519723288714885711669921875,
        "zone_ids": [
            "discovered_001"
        ]
    },
    "gap_enrichment": {
        "status": "done",
        "corridor": {
            "start": {
                "lat": 34.98779329999999987421688274480402469635009765625,
                "lon": 128.85615830000000414656824432313442230224609375,
                "ts": "2026-07-29T21:49:17+00:00"
            },
            "end": {
                "lat": 34.98895499999999714191289967857301235198974609375,
                "lon": 128.86038999999999532519723288714885711669921875,
                "ts": "2026-07-30T03:33:39+00:00"
            },
            "bbox": {
                "min_lat": 34.80761300000000346699380315840244293212890625,
                "min_lon": 128.63623000000001184162101708352565765380859375,
                "max_lat": 35.1691349999999971487341099418699741363525390625,
                "max_lon": 129.080318000000005440597306005656719207763671875
            },
            "buffer_km": 20
        },
        "sar": {
            "status": "not_found",
            "notes": "No Sentinel-1 scenes covering corridor and time window"
        },
        "viirs": {
            "status": "signal",
            "dataset": "VIIRS_SNPP",
            "detection_count": 4,
            "top_detections": [
                {
                    "lat": 35.0962999999999993860910763032734394073486328125,
                    "lon": 128.8621699999999918873072601854801177978515625,
                    "brightness": 327.6399999999999863575794734060764312744140625,
                    "frp": 2.6699999999999999289457264239899814128875732421875,
                    "confidence": "n",
                    "acq_date": "2026-07-29",
                    "acq_time": "1732",
                    "satellite": "N",
                    "daynight": "N",
                    "acq_datetime": "2026-07-29T17:32:00+00:00"
                },
                {
                    "lat": 35.0996499999999969077180139720439910888671875,
                    "lon": 128.862989999999996371116139926016330718994140625,
                    "brightness": 317.31000000000000227373675443232059478759765625,
                    "frp": 2.6699999999999999289457264239899814128875732421875,
                    "confidence": "n",
                    "acq_date": "2026-07-29",
                    "acq_time": "1732",
                    "satellite": "N",
                    "daynight": "N",
                    "acq_datetime": "2026-07-29T17:32:00+00:00"
                },
                {
                    "lat": 35.084260000000000445652403868734836578369140625,
                    "lon": 128.99128999999999223291524685919284820556640625,
                    "brightness": 317.25,
                    "frp": 1.5,
                    "confidence": "n",
                    "acq_date": "2026-07-29",
                    "acq_time": "1732",
                    "satellite": "N",
                    "daynight": "N",
                    "acq_datetime": "2026-07-29T17:32:00+00:00"
                },
                {
                    "lat": 35.0808999999999997498889570124447345733642578125,
                    "lon": 128.990460000000012996679288335144519805908203125,
                    "brightness": 316.470000000000027284841053187847137451171875,
                    "frp": 1.5,
                    "confidence": "n",
                    "acq_date": "2026-07-29",
                    "acq_time": "1732",
                    "satellite": "N",
                    "daynight": "N",
                    "acq_datetime": "2026-07-29T17:32:00+00:00"
                }
            ],
            "notes": "4 thermal\/light anomalies detected"
        },
        "searched_at": "2026-07-30T03:45:05.171112+00:00"
    }
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 29, 2026 21:03 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 25m
  • Data Points: 13 AIS positions
  • Period: 2026-07-29T21:49:17+00:00 to 2026-07-30T04:14:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 385.3999999999999772626324556767940521240234375,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-07-29T21:49:17+00:00",
        "lat": 34.98779329999999987421688274480402469635009765625,
        "lon": 128.85615830000000414656824432313442230224609375
    },
    "last_point": {
        "ts": "2026-07-30T04:14:40+00:00",
        "lat": 35.0237750000000005456968210637569427490234375,
        "lon": 129.0197699999999940700945444405078887939453125
    }
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 28, 2026 23:01 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 2h 1m
  • Data Points: 28 AIS positions
  • Period: 2026-07-28T23:01:05+00:00 to 2026-07-29T01:02:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 121.400000000000005684341886080801486968994140625,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-07-28T23:01:05+00:00",
        "lat": 35.009801699999997026679920963943004608154296875,
        "lon": 129.04768500000000130967237055301666259765625
    },
    "last_point": {
        "ts": "2026-07-29T01:02:28+00:00",
        "lat": 35.0269167000000010148141882382333278656005859375,
        "lon": 129.068458300000003191598807461559772491455078125
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 28, 2026 23:01 UTC 75.0% ▼
  • Duration: 1h 57m
  • Radius: 1,018 meters
  • Data Points: 25 AIS positions
  • Centroid: 35.0101, 129.0487
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 1018.1000000000000227373675443232059478759765625,
    "duration_minutes": 117,
    "points": 25,
    "centroid": {
        "lat": 35.0101212640000056808275985531508922576904296875,
        "lon": 129.0486745960000689592561684548854827880859375
    },
    "bbox": {
        "min_lat": 35.00940829999999692745404900051653385162353515625,
        "min_lon": 129.04768500000000130967237055301666259765625,
        "max_lat": 35.01707669999999694709913455881178379058837890625,
        "max_lon": 129.055951700000008486313163302838802337646484375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 28, 2026 22:01 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 3 hours
  • Data Points: 38 AIS positions
  • Period: 2026-07-28T22:01:46+00:00 to 2026-07-29T01:02:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 180.69999999999998863131622783839702606201171875,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-07-28T22:01:46+00:00",
        "lat": 35.0102882999999991397999110631644725799560546875,
        "lon": 129.046481699999986858529155142605304718017578125
    },
    "last_point": {
        "ts": "2026-07-29T01:02:28+00:00",
        "lat": 35.0269167000000010148141882382333278656005859375,
        "lon": 129.068458300000003191598807461559772491455078125
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 28, 2026 22:01 UTC 75.0% ▼
  • Duration: 2h 56m
  • Radius: 1,048 meters
  • Data Points: 35 AIS positions
  • Centroid: 35.0101, 129.0482
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 1047.799999999999954525264911353588104248046875,
    "duration_minutes": 176.30000000000001136868377216160297393798828125,
    "points": 35,
    "centroid": {
        "lat": 35.010119614285713396384380757808685302734375,
        "lon": 129.048187282857128366231336258351802825927734375
    },
    "bbox": {
        "min_lat": 35.00940829999999692745404900051653385162353515625,
        "min_lon": 129.046481699999986858529155142605304718017578125,
        "max_lat": 35.01707669999999694709913455881178379058837890625,
        "max_lon": 129.055951700000008486313163302838802337646484375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 28, 2026 21:23 UTC 75.0% ▼
  • Duration: 3h 34m
  • Radius: 1,087 meters
  • Data Points: 43 AIS positions
  • Centroid: 35.0097, 129.0481
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 1086.59999999999990905052982270717620849609375,
    "duration_minutes": 214.80000000000001136868377216160297393798828125,
    "points": 43,
    "centroid": {
        "lat": 35.0097417790697562622881378047168254852294921875,
        "lon": 129.0480630581395189437898807227611541748046875
    },
    "bbox": {
        "min_lat": 35.00407169999999723586370237171649932861328125,
        "min_lon": 129.045903299999991986624081619083881378173828125,
        "max_lat": 35.01707669999999694709913455881178379058837890625,
        "max_lon": 129.055951700000008486313163302838802337646484375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 28, 2026 21:16 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 3h 45m
  • Data Points: 49 AIS positions
  • Period: 2026-07-28T21:16:55+00:00 to 2026-07-29T01:02:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 225.599999999999994315658113919198513031005859375,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-07-28T21:16:55+00:00",
        "lat": 35.017861699999997426857589744031429290771484375,
        "lon": 129.058673300000009476207196712493896484375
    },
    "last_point": {
        "ts": "2026-07-29T01:02:28+00:00",
        "lat": 35.0269167000000010148141882382333278656005859375,
        "lon": 129.068458300000003191598807461559772491455078125
    }
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 27, 2026 05:01 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 1h 5m
  • Data Points: 20 AIS positions
  • Period: 2026-07-27T05:01:37+00:00 to 2026-07-27T06:07:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 65.7000000000000028421709430404007434844970703125,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-07-27T05:01:37+00:00",
        "lat": 35.00964669999999756555553176440298557281494140625,
        "lon": 129.047608300000007375274435617029666900634765625
    },
    "last_point": {
        "ts": "2026-07-27T06:07:17+00:00",
        "lat": 35.02852829999999784149622428230941295623779296875,
        "lon": 129.067558300000001736407284624874591827392578125
    }
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 27, 2026 04:01 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 2h 5m
  • Data Points: 35 AIS positions
  • Period: 2026-07-27T04:01:27+00:00 to 2026-07-27T06:07:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 125.7999999999999971578290569595992565155029296875,
    "points_in_zone": 35,
    "first_point": {
        "ts": "2026-07-27T04:01:27+00:00",
        "lat": 35.0094916999999981044311425648629665374755859375,
        "lon": 129.047879999999992151060723699629306793212890625
    },
    "last_point": {
        "ts": "2026-07-27T06:07:17+00:00",
        "lat": 35.02852829999999784149622428230941295623779296875,
        "lon": 129.067558300000001736407284624874591827392578125
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 27, 2026 04:01 UTC 75.0% ▼
  • Duration: 1h 59m
  • Radius: 620 meters
  • Data Points: 32 AIS positions
  • Centroid: 35.0098, 129.0476
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 619.8999999999999772626324556767940521240234375,
    "duration_minutes": 119.7000000000000028421709430404007434844970703125,
    "points": 32,
    "centroid": {
        "lat": 35.00978969062499146502887015230953693389892578125,
        "lon": 129.04761353750001262596924789249897003173828125
    },
    "bbox": {
        "min_lat": 35.00938500000000175305103766731917858123779296875,
        "min_lon": 129.047158300000006647678674198687076568603515625,
        "max_lat": 35.0145667000000031521267374046146869659423828125,
        "max_lon": 129.051136700000000701038516126573085784912109375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 27, 2026 03:03 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 3h 4m
  • Data Points: 52 AIS positions
  • Period: 2026-07-27T03:03:15+00:00 to 2026-07-27T06:07:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 184,
    "points_in_zone": 52,
    "first_point": {
        "ts": "2026-07-27T03:03:15+00:00",
        "lat": 35.0090732999999971752913552336394786834716796875,
        "lon": 129.048526699999996480983099900186061859130859375
    },
    "last_point": {
        "ts": "2026-07-27T06:07:17+00:00",
        "lat": 35.02852829999999784149622428230941295623779296875,
        "lon": 129.067558300000001736407284624874591827392578125
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 27, 2026 03:03 UTC 75.0% ▼
  • Duration: 2h 57m
  • Radius: 623 meters
  • Data Points: 49 AIS positions
  • Centroid: 35.0097, 129.0478
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 623.299999999999954525264911353588104248046875,
    "duration_minutes": 177.900000000000005684341886080801486968994140625,
    "points": 49,
    "centroid": {
        "lat": 35.00965537551019934880969231016933917999267578125,
        "lon": 129.047819897959158197409124113619327545166015625
    },
    "bbox": {
        "min_lat": 35.0090732999999971752913552336394786834716796875,
        "min_lon": 129.047158300000006647678674198687076568603515625,
        "max_lat": 35.0145667000000031521267374046146869659423828125,
        "max_lon": 129.051136700000000701038516126573085784912109375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 27, 2026 02:04 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 4h 2m
  • Data Points: 67 AIS positions
  • Period: 2026-07-27T02:04:36+00:00 to 2026-07-27T06:07:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 242.69999999999998863131622783839702606201171875,
    "points_in_zone": 67,
    "first_point": {
        "ts": "2026-07-27T02:04:36+00:00",
        "lat": 35.00809000000000281715983874164521694183349609375,
        "lon": 129.049139999999994188328855670988559722900390625
    },
    "last_point": {
        "ts": "2026-07-27T06:07:17+00:00",
        "lat": 35.02852829999999784149622428230941295623779296875,
        "lon": 129.067558300000001736407284624874591827392578125
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 27, 2026 02:04 UTC 75.0% ▼
  • Duration: 3h 56m
  • Radius: 634 meters
  • Data Points: 64 AIS positions
  • Centroid: 35.0095, 129.0480
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 633.5,
    "duration_minutes": 236.5,
    "points": 64,
    "centroid": {
        "lat": 35.00945416562499445944922626949846744537353515625,
        "lon": 129.048044428124995874895830638706684112548828125
    },
    "bbox": {
        "min_lat": 35.00809000000000281715983874164521694183349609375,
        "min_lon": 129.047158300000006647678674198687076568603515625,
        "max_lat": 35.0145667000000031521267374046146869659423828125,
        "max_lon": 129.051136700000000701038516126573085784912109375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 27, 2026 01:00 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 5h 7m
  • Data Points: 79 AIS positions
  • Period: 2026-07-27T01:00:15+00:00 to 2026-07-27T06:07:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 307,
    "points_in_zone": 79,
    "first_point": {
        "ts": "2026-07-27T01:00:15+00:00",
        "lat": 35.008589999999998099156073294579982757568359375,
        "lon": 129.049196700000010196163202635943889617919921875
    },
    "last_point": {
        "ts": "2026-07-27T06:07:17+00:00",
        "lat": 35.02852829999999784149622428230941295623779296875,
        "lon": 129.067558300000001736407284624874591827392578125
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 27, 2026 01:00 UTC 75.0% ▼
  • Duration: 5 hours
  • Radius: 643 meters
  • Data Points: 76 AIS positions
  • Centroid: 35.0093, 129.0482
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 643,
    "duration_minutes": 300.8999999999999772626324556767940521240234375,
    "points": 76,
    "centroid": {
        "lat": 35.00929313421050892429775558412075042724609375,
        "lon": 129.048214388157930443412624299526214599609375
    },
    "bbox": {
        "min_lat": 35.00809000000000281715983874164521694183349609375,
        "min_lon": 129.047158300000006647678674198687076568603515625,
        "max_lat": 35.0145667000000031521267374046146869659423828125,
        "max_lon": 129.051136700000000701038516126573085784912109375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 27, 2026 00:01 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 5m
  • Data Points: 93 AIS positions
  • Period: 2026-07-27T00:01:54+00:00 to 2026-07-27T06:07:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 365.3999999999999772626324556767940521240234375,
    "points_in_zone": 93,
    "first_point": {
        "ts": "2026-07-27T00:01:54+00:00",
        "lat": 35.00885329999999839856172911822795867919921875,
        "lon": 129.0491667000000006737536750733852386474609375
    },
    "last_point": {
        "ts": "2026-07-27T06:07:17+00:00",
        "lat": 35.02852829999999784149622428230941295623779296875,
        "lon": 129.067558300000001736407284624874591827392578125
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 27, 2026 00:01 UTC 75.0% ▼
  • Duration: 5h 59m
  • Radius: 647 meters
  • Data Points: 90 AIS positions
  • Centroid: 35.0092, 129.0484
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 646.8999999999999772626324556767940521240234375,
    "duration_minutes": 359.19999999999998863131622783839702606201171875,
    "points": 90,
    "centroid": {
        "lat": 35.0092002577777776650691521354019641876220703125,
        "lon": 129.04836572333334743234445340931415557861328125
    },
    "bbox": {
        "min_lat": 35.00809000000000281715983874164521694183349609375,
        "min_lon": 129.047158300000006647678674198687076568603515625,
        "max_lat": 35.0145667000000031521267374046146869659423828125,
        "max_lon": 129.051136700000000701038516126573085784912109375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 26, 2026 23:02 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 34m
  • Data Points: 99 AIS positions
  • Period: 2026-07-26T23:32:35+00:00 to 2026-07-27T06:07:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 394.69999999999998863131622783839702606201171875,
    "points_in_zone": 99,
    "first_point": {
        "ts": "2026-07-26T23:32:35+00:00",
        "lat": 35.00901999999999958390617393888533115386962890625,
        "lon": 129.048914999999993824530974961817264556884765625
    },
    "last_point": {
        "ts": "2026-07-27T06:07:17+00:00",
        "lat": 35.02852829999999784149622428230941295623779296875,
        "lon": 129.067558300000001736407284624874591827392578125
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 26, 2026 23:02 UTC 75.0% ▼
  • Duration: 6h 28m
  • Radius: 647 meters
  • Data Points: 96 AIS positions
  • Centroid: 35.0092, 129.0484
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 646.700000000000045474735088646411895751953125,
    "duration_minutes": 388.6000000000000227373675443232059478759765625,
    "points": 96,
    "centroid": {
        "lat": 35.00918727291666954215543228201568126678466796875,
        "lon": 129.048406493750007939524948596954345703125
    },
    "bbox": {
        "min_lat": 35.00809000000000281715983874164521694183349609375,
        "min_lon": 129.047158300000006647678674198687076568603515625,
        "max_lat": 35.0145667000000031521267374046146869659423828125,
        "max_lon": 129.051136700000000701038516126573085784912109375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 26, 2026 22:29 UTC 75.0% ▼
  • Duration: 6h 37m
  • Radius: 414 meters
  • Data Points: 99 AIS positions
  • Centroid: 35.0090, 129.0484
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 414.19999999999998863131622783839702606201171875,
    "duration_minutes": 397.30000000000001136868377216160297393798828125,
    "points": 99,
    "centroid": {
        "lat": 35.0090441060606138989896862767636775970458984375,
        "lon": 129.04844727272728732714313082396984100341796875
    },
    "bbox": {
        "min_lat": 35.00681329999999746860339655540883541107177734375,
        "min_lon": 129.0448082999999996900442056357860565185546875,
        "max_lat": 35.00968329999999895107976044528186321258544921875,
        "max_lon": 129.049229999999994333848007954657077789306640625
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 26, 2026 22:10 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 37m
  • Data Points: 99 AIS positions
  • Period: 2026-07-26T22:51:57+00:00 to 2026-07-27T05:29:16+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 397.30000000000001136868377216160297393798828125,
    "points_in_zone": 99,
    "first_point": {
        "ts": "2026-07-26T22:51:57+00:00",
        "lat": 35.00681329999999746860339655540883541107177734375,
        "lon": 129.0448082999999996900442056357860565185546875
    },
    "last_point": {
        "ts": "2026-07-27T05:29:16+00:00",
        "lat": 35.009641700000003083914634771645069122314453125,
        "lon": 129.0473733000000038373400457203388214111328125
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Strait of Gibraltar Surveillance Zone
Jul 16, 2026 01:07 UTC 70/100 ▼
Vessel A: MMSI 440192560 (JINSUNG) REPUBLIC OF KOREA
Vessel B: MMSI 440112380 (KUKDONG3HO) REPUBLIC OF KOREA
  • Minimum Distance: 43 meters
  • Average Distance: 55 meters
  • Duration: 39 minutes
  • Period: 2026-07-16T01:07:05+00:00 to 2026-07-16T01:46:52+00:00
  • Vessel A Avg Speed: 0.5 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (JINSUNG and KUKDONG3HO) maintained close proximity (min 43m, avg 55m) for 40 minutes. Both vessels were slow-moving (avg speeds 0.5 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 43m, avg 55m
Duration5/25Duration 40 minutes
Speed Stability15/20both very slow; stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-16T07:45:08.950745+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440192560,
        "name": "JINSUNG",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440112380,
        "name": "KUKDONG3HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 42.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 55.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 6,
    "duration_minutes": 39.7999999999999971578290569595992565155029296875,
    "overlap_duration_s": 2387,
    "speed_a_avg": 0.5100000000000000088817841970012523233890533447265625,
    "speed_a_std": 0.330000000000000015543122344752191565930843353271484375,
    "speed_b_avg": 0.2800000000000000266453525910037569701671600341796875,
    "speed_b_std": 0.190000000000000002220446049250313080847263336181640625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.5100000000000000088817841970012523233890533447265625,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.2800000000000000266453525910037569701671600341796875,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        }
    },
    "time_window": {
        "start": "2026-07-16T01:07:05+00:00",
        "end": "2026-07-16T01:46:52+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 43m, avg 55m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 40 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both very slow; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (JINSUNG and KUKDONG3HO) maintained close proximity (min 43m, avg 55m) for 40 minutes. Both vessels were slow-moving (avg speeds 0.5 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.02953480000000041627572500146925449371337890625,
            "lon": 129.072809400000011237352737225592136383056640625
        },
        "time_window": {
            "start_ts": "2026-07-16T01:07:05+00:00",
            "end_ts": "2026-07-16T01:46:52+00:00"
        },
        "searched_at": "2026-07-16T07:45:08.950745+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Strait of Gibraltar Surveillance Zone
Jul 16, 2026 01:03 UTC 72/100 ▼
Vessel A: MMSI 440192560 (JINSUNG) REPUBLIC OF KOREA
Vessel B: IMO 9181352 (BUKWANG) REPUBLIC OF KOREA
  • Minimum Distance: 40 meters
  • Average Distance: 45 meters
  • Duration: 43 minutes
  • Period: 2026-07-16T01:03:45+00:00 to 2026-07-16T01:46:52+00:00
  • Vessel A Avg Speed: 0.5 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 72/100

Moderate-confidence STS candidate. Two tankers (JINSUNG and BUKWANG) maintained close proximity (min 40m, avg 45m) for 43 minutes. Both vessels were slow-moving (avg speeds 0.5 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 40m, avg 45m
Duration5/25Duration 43 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-16T07:45:06.505146+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440192560,
        "name": "JINSUNG",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440191310,
        "imo": 9181352,
        "name": "BUKWANG",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 40.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 44.89999999999999857891452847979962825775146484375,
    "distance_consistency_m": 4,
    "duration_minutes": 43.10000000000000142108547152020037174224853515625,
    "overlap_duration_s": 2587,
    "speed_a_avg": 0.460000000000000019984014443252817727625370025634765625,
    "speed_a_std": 0.34999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_b_std": 0.11999999999999999555910790149937383830547332763671875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.460000000000000019984014443252817727625370025634765625,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.1600000000000000033306690738754696212708950042724609375,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-07-16T01:03:45+00:00",
        "end": "2026-07-16T01:46:52+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 72,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 40m, avg 45m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 43 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; 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: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (JINSUNG and BUKWANG) maintained close proximity (min 40m, avg 45m) for 43 minutes. Both vessels were slow-moving (avg speeds 0.5 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.02951560000000341688064509071409702301025390625,
            "lon": 129.0728033999999979641870595514774322509765625
        },
        "time_window": {
            "start_ts": "2026-07-16T01:03:45+00:00",
            "end_ts": "2026-07-16T01:46:52+00:00"
        },
        "searched_at": "2026-07-16T07:45:06.505146+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts Strait of Gibraltar Surveillance Zone
Jul 16, 2026 00:05 UTC 82/100 ▼
Vessel A: MMSI 440192560 (JINSUNG) REPUBLIC OF KOREA
Vessel B: IMO 9181352 (BUKWANG) REPUBLIC OF KOREA
  • Minimum Distance: 30 meters
  • Average Distance: 44 meters
  • Duration: 1h 12m
  • Period: 2026-07-16T00:34:24+00:00 to 2026-07-16T01:46:52+00:00
  • Vessel A Avg Speed: 0.4 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 82/100

High-confidence STS candidate. Two tankers (JINSUNG and BUKWANG) maintained close proximity (min 30m, avg 44m) for 72 minutes. Both vessels were slow-moving (avg speeds 0.4 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 30m, avg 44m
Duration15/25Duration 72 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440192560,
        "name": "JINSUNG",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440191310,
        "imo": 9181352,
        "name": "BUKWANG",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 30.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 43.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 4.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 72.5,
    "overlap_duration_s": 4348,
    "speed_a_avg": 0.38000000000000000444089209850062616169452667236328125,
    "speed_a_std": 0.330000000000000015543122344752191565930843353271484375,
    "speed_b_avg": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_b_std": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.38000000000000000444089209850062616169452667236328125,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.1600000000000000033306690738754696212708950042724609375,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-07-16T00:34:24+00:00",
        "end": "2026-07-16T01:46:52+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 82,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 30m, avg 44m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 72 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (JINSUNG and BUKWANG) maintained close proximity (min 30m, avg 44m) for 72 minutes. Both vessels were slow-moving (avg speeds 0.4 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Strait of Gibraltar Surveillance Zone
Jul 16, 2026 00:02 UTC 82/100 ▼
Vessel A: MMSI 440192560 (JINSUNG) REPUBLIC OF KOREA
Vessel B: MMSI 440112380 (KUKDONG3HO) REPUBLIC OF KOREA
  • Minimum Distance: 37 meters
  • Average Distance: 55 meters
  • Duration: 1h 12m
  • Period: 2026-07-16T00:34:24+00:00 to 2026-07-16T01:46:52+00:00
  • Vessel A Avg Speed: 0.4 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 82/100

High-confidence STS candidate. Two tankers (JINSUNG and KUKDONG3HO) maintained close proximity (min 37m, avg 55m) for 72 minutes. Both vessels were slow-moving (avg speeds 0.4 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 37m, avg 55m
Duration15/25Duration 72 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency15/15Distance variance ±8m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440192560,
        "name": "JINSUNG",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440112380,
        "name": "KUKDONG3HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 36.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 54.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 7.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 72.5,
    "overlap_duration_s": 4348,
    "speed_a_avg": 0.38000000000000000444089209850062616169452667236328125,
    "speed_a_std": 0.330000000000000015543122344752191565930843353271484375,
    "speed_b_avg": 0.340000000000000024424906541753443889319896697998046875,
    "speed_b_std": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.38000000000000000444089209850062616169452667236328125,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.340000000000000024424906541753443889319896697998046875,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-07-16T00:34:24+00:00",
        "end": "2026-07-16T01:46:52+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 82,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 37m, avg 55m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 72 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b18m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (JINSUNG and KUKDONG3HO) maintained close proximity (min 37m, avg 55m) for 72 minutes. Both vessels were slow-moving (avg speeds 0.4 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 16, 2026 00:02 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 1h 44m
  • Data Points: 20 AIS positions
  • Period: 2026-07-16T00:02:24+00:00 to 2026-07-16T01:46:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 104.5,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-07-16T00:02:24+00:00",
        "lat": 35.029173299999996515907696448266506195068359375,
        "lon": 129.073139999999995097823557443916797637939453125
    },
    "last_point": {
        "ts": "2026-07-16T01:46:52+00:00",
        "lat": 35.02960829999999958772605168633162975311279296875,
        "lon": 129.073376700000011396696208976209163665771484375
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 16, 2026 00:02 UTC 75.0% ▼
  • Duration: 1h 44m
  • Radius: 51 meters
  • Data Points: 20 AIS positions
  • Centroid: 35.0293, 129.0730
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 51.10000000000000142108547152020037174224853515625,
    "duration_minutes": 104.5,
    "points": 20,
    "centroid": {
        "lat": 35.0292966599999999743886291980743408203125,
        "lon": 129.073030084999999189676600508391857147216796875
    },
    "bbox": {
        "min_lat": 35.02896170000000353184077539481222629547119140625,
        "min_lon": 129.072599999999994224708643741905689239501953125,
        "max_lat": 35.02960829999999958772605168633162975311279296875,
        "max_lon": 129.073376700000011396696208976209163665771484375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Sts🛰️✗ Strait of Gibraltar Surveillance Zone
Jul 15, 2026 23:16 UTC 95/100 ▼
Vessel A: MMSI 440192560 (JINSUNG) REPUBLIC OF KOREA
Vessel B: MMSI 440112380 (KUKDONG3HO) REPUBLIC OF KOREA
  • Minimum Distance: 34 meters
  • Average Distance: 53 meters
  • Duration: 2h 30m
  • Period: 2026-07-15T23:16:05+00:00 to 2026-07-16T01:46:52+00:00
  • Vessel A Avg Speed: 0.3 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (JINSUNG and KUKDONG3HO) maintained close proximity (min 34m, avg 53m) for 151 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 34m, avg 53m
Duration25/25Duration 151 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±7m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-16T05:45:04.233612+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440192560,
        "name": "JINSUNG",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440112380,
        "name": "KUKDONG3HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 34.10000000000000142108547152020037174224853515625,
    "avg_distance_m": 53.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 7.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 150.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 9047,
    "speed_a_avg": 0.309999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.270000000000000017763568394002504646778106689453125,
    "speed_b_avg": 0.309999999999999997779553950749686919152736663818359375,
    "speed_b_std": 0.2399999999999999911182158029987476766109466552734375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.309999999999999997779553950749686919152736663818359375,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.309999999999999997779553950749686919152736663818359375,
            "max_sog": 1
        }
    },
    "time_window": {
        "start": "2026-07-15T23:16:05+00:00",
        "end": "2026-07-16T01:46:52+00:00"
    },
    "points_count": {
        "vessel_a": 31,
        "vessel_b": 31
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 34m, avg 53m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 151 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (JINSUNG and KUKDONG3HO) maintained close proximity (min 34m, avg 53m) for 151 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.02939549999999968576958053745329380035400390625,
            "lon": 129.07292929999999842038960196077823638916015625
        },
        "time_window": {
            "start_ts": "2026-07-15T23:16:05+00:00",
            "end_ts": "2026-07-16T01:46:52+00:00"
        },
        "searched_at": "2026-07-16T05:45:04.233612+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Strait of Gibraltar Surveillance Zone
Jul 15, 2026 23:16 UTC 95/100 ▼
Vessel A: MMSI 440192560 (JINSUNG) REPUBLIC OF KOREA
Vessel B: IMO 9181352 (BUKWANG) REPUBLIC OF KOREA
  • Minimum Distance: 17 meters
  • Average Distance: 42 meters
  • Duration: 2h 30m
  • Period: 2026-07-15T23:16:05+00:00 to 2026-07-16T01:46:52+00:00
  • Vessel A Avg Speed: 0.3 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (JINSUNG and BUKWANG) maintained close proximity (min 17m, avg 42m) for 151 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 17m, avg 42m
Duration25/25Duration 151 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±7m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-16T05:45:06.679889+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440192560,
        "name": "JINSUNG",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440191310,
        "imo": 9181352,
        "name": "BUKWANG",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 17.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 42.10000000000000142108547152020037174224853515625,
    "distance_consistency_m": 6.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 150.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 9047,
    "speed_a_avg": 0.309999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.270000000000000017763568394002504646778106689453125,
    "speed_b_avg": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_b_std": 0.11999999999999999555910790149937383830547332763671875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.309999999999999997779553950749686919152736663818359375,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.1499999999999999944488848768742172978818416595458984375,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-07-15T23:16:05+00:00",
        "end": "2026-07-16T01:46:52+00:00"
    },
    "points_count": {
        "vessel_a": 31,
        "vessel_b": 31
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 17m, avg 42m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 151 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (JINSUNG and BUKWANG) maintained close proximity (min 17m, avg 42m) for 151 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.029352799999998069324647076427936553955078125,
            "lon": 129.072961999999989757270668633282184600830078125
        },
        "time_window": {
            "start_ts": "2026-07-15T23:16:05+00:00",
            "end_ts": "2026-07-16T01:46:52+00:00"
        },
        "searched_at": "2026-07-16T05:45:06.679889+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 15, 2026 23:01 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 2h 45m
  • Data Points: 32 AIS positions
  • Period: 2026-07-15T23:01:44+00:00 to 2026-07-16T01:46:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 165.099999999999994315658113919198513031005859375,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-07-15T23:01:44+00:00",
        "lat": 35.02924329999999741858118795789778232574462890625,
        "lon": 129.07288330000000087238731794059276580810546875
    },
    "last_point": {
        "ts": "2026-07-16T01:46:52+00:00",
        "lat": 35.02960829999999958772605168633162975311279296875,
        "lon": 129.073376700000011396696208976209163665771484375
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 15, 2026 23:01 UTC 75.0% ▼
  • Duration: 2h 45m
  • Radius: 62 meters
  • Data Points: 32 AIS positions
  • Centroid: 35.0292, 129.0731
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 62,
    "duration_minutes": 165.099999999999994315658113919198513031005859375,
    "points": 32,
    "centroid": {
        "lat": 35.0292116124999921566995908506214618682861328125,
        "lon": 129.0730980187499881139956414699554443359375
    },
    "bbox": {
        "min_lat": 35.02885169999999703804860473610460758209228515625,
        "min_lon": 129.072599999999994224708643741905689239501953125,
        "max_lat": 35.02960829999999958772605168633162975311279296875,
        "max_lon": 129.073431699999986221882863901555538177490234375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Sts🛰️✗ Strait of Gibraltar Surveillance Zone
Jul 15, 2026 22:08 UTC 95/100 ▼
Vessel A: MMSI 440192560 (JINSUNG) REPUBLIC OF KOREA
Vessel B: IMO 9181352 (BUKWANG) REPUBLIC OF KOREA
  • Minimum Distance: 17 meters
  • Average Distance: 42 meters
  • Duration: 3h 38m
  • Period: 2026-07-15T22:08:23+00:00 to 2026-07-16T01:46:52+00:00
  • Vessel A Avg Speed: 0.3 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (JINSUNG and BUKWANG) maintained close proximity (min 17m, avg 42m) for 218 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 17m, avg 42m
Duration25/25Duration 218 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-16T04:45:01.937591+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440192560,
        "name": "JINSUNG",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440191310,
        "imo": 9181352,
        "name": "BUKWANG",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 17.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 41.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 5.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 218.5,
    "overlap_duration_s": 13109,
    "speed_a_avg": 0.309999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.2399999999999999911182158029987476766109466552734375,
    "speed_b_avg": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_std": 0.11000000000000000055511151231257827021181583404541015625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.309999999999999997779553950749686919152736663818359375,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.14000000000000001332267629550187848508358001708984375,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-07-15T22:08:23+00:00",
        "end": "2026-07-16T01:46:52+00:00"
    },
    "points_count": {
        "vessel_a": 43,
        "vessel_b": 43
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 17m, avg 42m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 218 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (JINSUNG and BUKWANG) maintained close proximity (min 17m, avg 42m) for 218 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.02937250000000091176843852736055850982666015625,
            "lon": 129.072879800000009709037840366363525390625
        },
        "time_window": {
            "start_ts": "2026-07-15T22:08:23+00:00",
            "end_ts": "2026-07-16T01:46:52+00:00"
        },
        "searched_at": "2026-07-16T04:45:01.937591+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Strait of Gibraltar Surveillance Zone
Jul 15, 2026 22:08 UTC 95/100 ▼
Vessel A: MMSI 440192560 (JINSUNG) REPUBLIC OF KOREA
Vessel B: MMSI 440112380 (KUKDONG3HO) REPUBLIC OF KOREA
  • Minimum Distance: 34 meters
  • Average Distance: 53 meters
  • Duration: 3h 38m
  • Period: 2026-07-15T22:08:23+00:00 to 2026-07-16T01:46:52+00:00
  • Vessel A Avg Speed: 0.3 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (JINSUNG and KUKDONG3HO) maintained close proximity (min 34m, avg 53m) for 218 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 34m, avg 53m
Duration25/25Duration 218 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-16T04:45:04.648112+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440192560,
        "name": "JINSUNG",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440112380,
        "name": "KUKDONG3HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 34.10000000000000142108547152020037174224853515625,
    "avg_distance_m": 52.60000000000000142108547152020037174224853515625,
    "distance_consistency_m": 6.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 218.5,
    "overlap_duration_s": 13109,
    "speed_a_avg": 0.309999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.2399999999999999911182158029987476766109466552734375,
    "speed_b_avg": 0.299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.309999999999999997779553950749686919152736663818359375,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.299999999999999988897769753748434595763683319091796875,
            "max_sog": 1
        }
    },
    "time_window": {
        "start": "2026-07-15T22:08:23+00:00",
        "end": "2026-07-16T01:46:52+00:00"
    },
    "points_count": {
        "vessel_a": 43,
        "vessel_b": 43
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 34m, avg 53m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 218 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (JINSUNG and KUKDONG3HO) maintained close proximity (min 34m, avg 53m) for 218 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.029413599999998041312210261821746826171875,
            "lon": 129.07284789999999929932528175413608551025390625
        },
        "time_window": {
            "start_ts": "2026-07-15T22:08:23+00:00",
            "end_ts": "2026-07-16T01:46:52+00:00"
        },
        "searched_at": "2026-07-16T04:45:04.648112+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 15, 2026 22:00 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 3h 46m
  • Data Points: 44 AIS positions
  • Period: 2026-07-15T22:00:23+00:00 to 2026-07-16T01:46:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 226.5,
    "points_in_zone": 44,
    "first_point": {
        "ts": "2026-07-15T22:00:23+00:00",
        "lat": 35.029189999999999827196006663143634796142578125,
        "lon": 129.072824999999994588506524451076984405517578125
    },
    "last_point": {
        "ts": "2026-07-16T01:46:52+00:00",
        "lat": 35.02960829999999958772605168633162975311279296875,
        "lon": 129.073376700000011396696208976209163665771484375
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 15, 2026 22:00 UTC 75.0% ▼
  • Duration: 3h 46m
  • Radius: 56 meters
  • Data Points: 44 AIS positions
  • Centroid: 35.0292, 129.0730
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 55.5,
    "duration_minutes": 226.5,
    "points": 44,
    "centroid": {
        "lat": 35.02923105909091106013875105418264865875244140625,
        "lon": 129.073021022727260742612998001277446746826171875
    },
    "bbox": {
        "min_lat": 35.02885169999999703804860473610460758209228515625,
        "min_lon": 129.072599999999994224708643741905689239501953125,
        "max_lat": 35.02960829999999958772605168633162975311279296875,
        "max_lon": 129.073431699999986221882863901555538177490234375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Sts Strait of Gibraltar Surveillance Zone
Jul 15, 2026 21:40 UTC 95/100 ▼
Vessel A: MMSI 440192560 (JINSUNG) REPUBLIC OF KOREA
Vessel B: MMSI 440112380 (KUKDONG3HO) REPUBLIC OF KOREA
  • Minimum Distance: 34 meters
  • Average Distance: 53 meters
  • Duration: 4h 4m
  • Period: 2026-07-15T21:42:49+00:00 to 2026-07-16T01:46:52+00:00
  • Vessel A Avg Speed: 0.3 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (JINSUNG and KUKDONG3HO) maintained close proximity (min 34m, avg 53m) for 244 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 34m, avg 53m
Duration25/25Duration 244 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±7m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440192560,
        "name": "JINSUNG",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440112380,
        "name": "KUKDONG3HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 34.10000000000000142108547152020037174224853515625,
    "avg_distance_m": 53.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 7.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 244.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 14643,
    "speed_a_avg": 0.330000000000000015543122344752191565930843353271484375,
    "speed_a_std": 0.289999999999999980015985556747182272374629974365234375,
    "speed_b_avg": 0.2800000000000000266453525910037569701671600341796875,
    "speed_b_std": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.330000000000000015543122344752191565930843353271484375,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0.2800000000000000266453525910037569701671600341796875,
            "max_sog": 1
        }
    },
    "time_window": {
        "start": "2026-07-15T21:42:49+00:00",
        "end": "2026-07-16T01:46:52+00:00"
    },
    "points_count": {
        "vessel_a": 47,
        "vessel_b": 47
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 34m, avg 53m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 244 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (JINSUNG and KUKDONG3HO) maintained close proximity (min 34m, avg 53m) for 244 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Strait of Gibraltar Surveillance Zone
Jul 15, 2026 21:39 UTC 95/100 ▼
Vessel A: MMSI 440192560 (JINSUNG) REPUBLIC OF KOREA
Vessel B: IMO 9181352 (BUKWANG) REPUBLIC OF KOREA
  • Minimum Distance: 17 meters
  • Average Distance: 43 meters
  • Duration: 4h 4m
  • Period: 2026-07-15T21:42:49+00:00 to 2026-07-16T01:46:52+00:00
  • Vessel A Avg Speed: 0.3 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (JINSUNG and BUKWANG) maintained close proximity (min 17m, avg 42m) for 244 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 17m, avg 42m
Duration25/25Duration 244 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±7m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440192560,
        "name": "JINSUNG",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440191310,
        "imo": 9181352,
        "name": "BUKWANG",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 17.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 42.5,
    "distance_consistency_m": 7,
    "duration_minutes": 244.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 14643,
    "speed_a_avg": 0.330000000000000015543122344752191565930843353271484375,
    "speed_a_std": 0.289999999999999980015985556747182272374629974365234375,
    "speed_b_avg": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_b_std": 0.11000000000000000055511151231257827021181583404541015625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.330000000000000015543122344752191565930843353271484375,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0.1499999999999999944488848768742172978818416595458984375,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-07-15T21:42:49+00:00",
        "end": "2026-07-16T01:46:52+00:00"
    },
    "points_count": {
        "vessel_a": 47,
        "vessel_b": 47
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 17m, avg 42m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 244 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (JINSUNG and BUKWANG) maintained close proximity (min 17m, avg 42m) for 244 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 15, 2026 21:30 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 4h 16m
  • Data Points: 50 AIS positions
  • Period: 2026-07-15T21:30:43+00:00 to 2026-07-16T01:46:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 256.1000000000000227373675443232059478759765625,
    "points_in_zone": 50,
    "first_point": {
        "ts": "2026-07-15T21:30:43+00:00",
        "lat": 35.02988500000000016143530956469476222991943359375,
        "lon": 129.062808300000000372165231965482234954833984375
    },
    "last_point": {
        "ts": "2026-07-16T01:46:52+00:00",
        "lat": 35.02960829999999958772605168633162975311279296875,
        "lon": 129.073376700000011396696208976209163665771484375
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 15, 2026 21:30 UTC 75.0% ▼
  • Duration: 4h 16m
  • Radius: 898 meters
  • Data Points: 50 AIS positions
  • Centroid: 35.0291, 129.0726
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 897.5,
    "duration_minutes": 256.1000000000000227373675443232059478759765625,
    "points": 50,
    "centroid": {
        "lat": 35.02911129800001077683191397227346897125244140625,
        "lon": 129.07259853400000793044455349445343017578125
    },
    "bbox": {
        "min_lat": 35.0260133000000024594555725343525409698486328125,
        "min_lon": 129.062808300000000372165231965482234954833984375,
        "max_lat": 35.02988500000000016143530956469476222991943359375,
        "max_lon": 129.073431699999986221882863901555538177490234375
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Jul 30 04:14 35.0238 129.0198 12.4 kn 70.5° Strait of Gibraltar Surveillance Zone
Jul 30 04:10 35.0189 129.0029 12.0 kn 72.3° Strait of Gibraltar Surveillance Zone
Jul 30 04:07 35.0155 128.9915 12.0 kn 71.0° Strait of Gibraltar Surveillance Zone
Jul 30 04:06 35.0145 128.9876 11.8 kn 72.1° Strait of Gibraltar Surveillance Zone
Jul 30 04:04 35.0122 128.9789 11.8 kn 70.6° Strait of Gibraltar Surveillance Zone
Jul 30 04:01 35.0096 128.9688 11.7 kn 76.1° Strait of Gibraltar Surveillance Zone
Jul 30 03:58 35.0068 128.9573 11.8 kn 71.1° Strait of Gibraltar Surveillance Zone
Jul 30 03:55 35.0045 128.9485 11.6 kn 73.0° Strait of Gibraltar Surveillance Zone
Jul 30 03:51 35.0007 128.9320 11.7 kn 77.3° Strait of Gibraltar Surveillance Zone
Jul 30 03:45 34.9966 128.9087 11.8 kn 82.8° Strait of Gibraltar Surveillance Zone
Jul 30 03:36 34.9912 128.8728 12.7 kn 76.5° Strait of Gibraltar Surveillance Zone
Jul 30 03:33 34.9890 128.8604 12.5 kn 77.5° Strait of Gibraltar Surveillance Zone
Jul 29 21:49 34.9878 128.8562 10.7 kn 251.4° Strait of Gibraltar Surveillance Zone
Jul 29 21:39 34.9955 128.8922 10.9 kn 254.9° Strait of Gibraltar Surveillance Zone
Jul 29 21:34 34.9989 128.9092 11.0 kn 256.6° Strait of Gibraltar Surveillance Zone
Jul 29 21:31 35.0012 128.9211 11.3 kn 256.1° Strait of Gibraltar Surveillance Zone
Jul 29 21:29 35.0022 128.9260 11.1 kn 258.6° Strait of Gibraltar Surveillance Zone
Jul 29 21:21 35.0081 128.9560 10.9 kn 260.3° Strait of Gibraltar Surveillance Zone
Jul 29 21:14 35.0122 128.9799 10.5 kn 253.9° Strait of Gibraltar Surveillance Zone
Jul 29 21:13 35.0134 128.9846 10.8 kn 251.2° Strait of Gibraltar Surveillance Zone

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.