Intelligence Feed - FleetLeaks

Ais Gap🛰️✗ Strait of Gibraltar Surveillance Zone

Jul 29, 2026 13:11 UTC 70.0% ▼

Gap Duration: 6h 10m
Last Seen: 2026-07-29T13:11:17+00:00 at 35.0105, 129.0538 (Zone: Strait of Gibraltar Surveillance Zone)
Next Seen: 2026-07-29T19:22:03+00:00 at 35.0273, 129.0254

🛰️ 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: 2026-07-29T19:30:25.382223+00:00

Show Raw Evidence JSON

{
    "gap_minutes": 370.80000000000001136868377216160297393798828125,
    "last_seen": {
        "ts": "2026-07-29T13:11:17+00:00",
        "lat": 35.01045830000000336212906404398381710052490234375,
        "lon": 129.0538467000000082407495938241481781005859375,
        "sog": 8.300000000000000710542735760100185871124267578125,
        "zone_id": "discovered_001"
    },
    "next_seen": {
        "ts": "2026-07-29T19:22:03+00:00",
        "lat": 35.02730999999999994543031789362430572509765625,
        "lon": 129.025360000000006266418495215475559234619140625,
        "zone_ids": [
            "discovered_001"
        ]
    },
    "gap_enrichment": {
        "status": "not_found",
        "corridor": {
            "start": {
                "lat": 35.01045830000000336212906404398381710052490234375,
                "lon": 129.0538467000000082407495938241481781005859375,
                "ts": "2026-07-29T13:11:17+00:00"
            },
            "end": {
                "lat": 35.02730999999999994543031789362430572509765625,
                "lon": 129.025360000000006266418495215475559234619140625,
                "ts": "2026-07-29T19:22:03+00:00"
            },
            "bbox": {
                "min_lat": 34.83027799999999984947862685658037662506103515625,
                "min_lon": 128.805350000000004229150363244116306304931640625,
                "max_lat": 35.20748999999999995225152815692126750946044921875,
                "max_lon": 129.273856999999992467564879916608333587646484375
            },
            "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": "2026-07-29T19:30:25.382223+00:00"
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 29, 2026 13:03 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 6h 35m
Data Points: 10 AIS positions
Period: 2026-07-29T13:11:17+00:00 to 2026-07-29T19:46:20+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 395.1000000000000227373675443232059478759765625,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-07-29T13:11:17+00:00",
        "lat": 35.01045830000000336212906404398381710052490234375,
        "lon": 129.0538467000000082407495938241481781005859375
    },
    "last_point": {
        "ts": "2026-07-29T19:46:20+00:00",
        "lat": 35.0077117000000015423211152665317058563232421875,
        "lon": 128.9465582999999924140865914523601531982421875
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Strait of Gibraltar Surveillance Zone

Jul 29, 2026 12:08 UTC 85/100 ▼

Vessel A: MMSI 440308690 (CHEONGHAE3HO) REPUBLIC OF KOREA

Vessel B: MMSI 440130480 (STELLA HO) REPUBLIC OF KOREA

Minimum Distance: 40 meters
Average Distance: 45 meters
Duration: 1 hours
Period: 2026-07-29T12:08:45+00:00 to 2026-07-29T13:09:35+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.1 knots
Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (CHEONGHAE3HO and STELLA HO) maintained close proximity (min 40m, avg 45m) for 61 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 40m, avg 45m
Duration	15/25	Duration 61 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±5m
Isolation	5/10	Isolation data not available
Context	5/5	In 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: 2026-07-29T18:45:01.261578+00:00

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 440308690,
        "name": "CHEONGHAE3HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440130480,
        "name": "STELLA HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 39.7000000000000028421709430404007434844970703125,
    "avg_distance_m": 44.89999999999999857891452847979962825775146484375,
    "distance_consistency_m": 5.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 60.7999999999999971578290569595992565155029296875,
    "overlap_duration_s": 3650,
    "speed_a_avg": 0.13000000000000000444089209850062616169452667236328125,
    "speed_a_std": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_b_avg": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_b_std": 0.11000000000000000055511151231257827021181583404541015625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.13000000000000000444089209850062616169452667236328125,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0.08000000000000000166533453693773481063544750213623046875,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-07-29T12:08:45+00:00",
        "end": "2026-07-29T13:09:35+00:00"
    },
    "points_count": {
        "vessel_a": 15,
        "vessel_b": 15
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 40m, avg 45m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 61 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very 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 (CHEONGHAE3HO and STELLA HO) maintained close proximity (min 40m, avg 45m) for 61 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.0099579999999974688762449659407138824462890625,
            "lon": 129.049744400000008681672625243663787841796875
        },
        "time_window": {
            "start_ts": "2026-07-29T12:08:45+00:00",
            "end_ts": "2026-07-29T13:09:35+00:00"
        },
        "searched_at": "2026-07-29T18:45:01.261578+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 29, 2026 12:02 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 6h 34m
Data Points: 11 AIS positions
Period: 2026-07-29T12:55:15+00:00 to 2026-07-29T19:29:42+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 394.3999999999999772626324556767940521240234375,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-07-29T12:55:15+00:00",
        "lat": 35.00999829999999946039679343812167644500732421875,
        "lon": 129.049663299999991750155459158122539520263671875
    },
    "last_point": {
        "ts": "2026-07-29T19:29:42+00:00",
        "lat": 35.0212250000000011596057447604835033416748046875,
        "lon": 129.001523300000002336673787795007228851318359375
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Strait of Gibraltar Surveillance Zone

Jul 29, 2026 11:10 UTC 90/100 ▼

Vessel A: MMSI 440308690 (CHEONGHAE3HO) REPUBLIC OF KOREA

Vessel B: MMSI 440130480 (STELLA HO) REPUBLIC OF KOREA

Minimum Distance: 10 meters
Average Distance: 43 meters
Duration: 1h 59m
Period: 2026-07-29T11:10:04+00:00 to 2026-07-29T13:09:35+00:00
Vessel A Avg Speed: 0.2 knots
Vessel B Avg Speed: 0.2 knots
Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (CHEONGHAE3HO and STELLA HO) maintained close proximity (min 10m, avg 43m) for 120 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 10m, avg 43m
Duration	20/25	Duration 120 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±11m
Isolation	5/10	Isolation data not available
Context	5/5	In 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: 2026-07-29T17:45:02.034975+00:00

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 440308690,
        "name": "CHEONGHAE3HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440130480,
        "name": "STELLA HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 9.5,
    "avg_distance_m": 42.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 10.800000000000000710542735760100185871124267578125,
    "duration_minutes": 119.5,
    "overlap_duration_s": 7171,
    "speed_a_avg": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_a_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_b_avg": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_b_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.2099999999999999922284388276239042170345783233642578125,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        },
        "vessel_b": {
            "avg_sog": 0.1499999999999999944488848768742172978818416595458984375,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-29T11:10:04+00:00",
        "end": "2026-07-29T13:09:35+00:00"
    },
    "points_count": {
        "vessel_a": 30,
        "vessel_b": 30
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 10m, avg 43m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 120 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b111m"
            },
            "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 (CHEONGHAE3HO and STELLA HO) maintained close proximity (min 10m, avg 43m) for 120 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.009967799999998305793269537389278411865234375,
            "lon": 129.048978199999993421442923136055469512939453125
        },
        "time_window": {
            "start_ts": "2026-07-29T11:10:04+00:00",
            "end_ts": "2026-07-29T13:09:35+00:00"
        },
        "searched_at": "2026-07-29T17:45:02.034975+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 29, 2026 11:01 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 2h 10m
Data Points: 28 AIS positions
Period: 2026-07-29T11:01:04+00:00 to 2026-07-29T13:11:17+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 130.19999999999998863131622783839702606201171875,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-07-29T11:01:04+00:00",
        "lat": 35.0090866999999974495949572883546352386474609375,
        "lon": 129.045928300000014132820069789886474609375
    },
    "last_point": {
        "ts": "2026-07-29T13:11:17+00:00",
        "lat": 35.01045830000000336212906404398381710052490234375,
        "lon": 129.0538467000000082407495938241481781005859375
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone

Jul 29, 2026 11:01 UTC 75.0% ▼

Duration: 2h 10m
Radius: 442 meters
Data Points: 28 AIS positions
Centroid: 35.0098, 129.0491
Zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 442.3999999999999772626324556767940521240234375,
    "duration_minutes": 130.19999999999998863131622783839702606201171875,
    "points": 28,
    "centroid": {
        "lat": 35.00983379999998845732989138923585414886474609375,
        "lon": 129.049059642857145036032306961715221405029296875
    },
    "bbox": {
        "min_lat": 35.0090866999999974495949572883546352386474609375,
        "min_lon": 129.045928300000014132820069789886474609375,
        "max_lat": 35.01076669999999779747668071649968624114990234375,
        "max_lon": 129.0538467000000082407495938241481781005859375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Sts Strait of Gibraltar Surveillance Zone

Jul 29, 2026 10:09 UTC 95/100 ▼

Vessel A: MMSI 440308690 (CHEONGHAE3HO) REPUBLIC OF KOREA

Vessel B: MMSI 440130480 (STELLA HO) REPUBLIC OF KOREA

Minimum Distance: 10 meters
Average Distance: 43 meters
Duration: 2h 51m
Period: 2026-07-29T10:17:44+00:00 to 2026-07-29T13:09:35+00:00
Vessel A Avg Speed: 0.2 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 (CHEONGHAE3HO and STELLA HO) maintained close proximity (min 10m, avg 43m) for 172 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 10m, avg 43m
Duration	25/25	Duration 172 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±10m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 440308690,
        "name": "CHEONGHAE3HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440130480,
        "name": "STELLA HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 9.5,
    "avg_distance_m": 43.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 9.800000000000000710542735760100185871124267578125,
    "duration_minutes": 171.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 10311,
    "speed_a_avg": 0.200000000000000011102230246251565404236316680908203125,
    "speed_a_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_b_avg": 0.11999999999999999555910790149937383830547332763671875,
    "speed_b_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.200000000000000011102230246251565404236316680908203125,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        },
        "vessel_b": {
            "avg_sog": 0.11999999999999999555910790149937383830547332763671875,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-29T10:17:44+00:00",
        "end": "2026-07-29T13:09:35+00:00"
    },
    "points_count": {
        "vessel_a": 40,
        "vessel_b": 40
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 10m, avg 43m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 172 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b110m"
            },
            "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 (CHEONGHAE3HO and STELLA HO) maintained close proximity (min 10m, avg 43m) for 172 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Strait of Gibraltar Surveillance Zone

Jul 29, 2026 10:02 UTC 75/100 ▼

Vessel A: MMSI 440130480 (STELLA HO) REPUBLIC OF KOREA

Vessel B: MMSI 440114920 (NO.7 HAEGU) REPUBLIC OF KOREA

Minimum Distance: 14 meters
Average Distance: 21 meters
Duration: 33 minutes
Period: 2026-07-29T10:02:32+00:00 to 2026-07-29T10:36:23+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.1 knots
Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (STELLA HO and NO.7 HAEGU) maintained close proximity (min 14m, avg 21m) for 34 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 14m, avg 21m
Duration	5/25	Duration 34 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±6m
Isolation	5/10	Isolation data not available
Context	5/5	In 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: 2026-07-29T16:45:14.396159+00:00

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 440130480,
        "name": "STELLA HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440114920,
        "name": "NO.7 HAEGU",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 14,
    "avg_distance_m": 21.300000000000000710542735760100185871124267578125,
    "distance_consistency_m": 5.5,
    "duration_minutes": 33.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2031,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-29T10:02:32+00:00",
        "end": "2026-07-29T10:36:23+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 21m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 34 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": "Moderate-confidence STS candidate. Two tankers (STELLA HO and NO.7 HAEGU) maintained close proximity (min 14m, avg 21m) for 34 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.00842099999999845749698579311370849609375,
            "lon": 129.045479400000004943649400956928730010986328125
        },
        "time_window": {
            "start_ts": "2026-07-29T10:02:32+00:00",
            "end_ts": "2026-07-29T10:36:23+00:00"
        },
        "searched_at": "2026-07-29T16:45:14.396159+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 29, 2026 10:02 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 3h 8m
Data Points: 39 AIS positions
Period: 2026-07-29T10:02:32+00:00 to 2026-07-29T13:11:17+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 188.80000000000001136868377216160297393798828125,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-07-29T10:02:32+00:00",
        "lat": 35.00818170000000151276253745891153812408447265625,
        "lon": 129.045403300000003810055204667150974273681640625
    },
    "last_point": {
        "ts": "2026-07-29T13:11:17+00:00",
        "lat": 35.01045830000000336212906404398381710052490234375,
        "lon": 129.0538467000000082407495938241481781005859375
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone

Jul 29, 2026 10:02 UTC 75.0% ▼

Duration: 3h 8m
Radius: 538 meters
Data Points: 39 AIS positions
Centroid: 35.0095, 129.0481
Zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 537.700000000000045474735088646411895751953125,
    "duration_minutes": 188.80000000000001136868377216160297393798828125,
    "points": 39,
    "centroid": {
        "lat": 35.009465805128201054685632698237895965576171875,
        "lon": 129.0480807717948437129962258040904998779296875
    },
    "bbox": {
        "min_lat": 35.00818170000000151276253745891153812408447265625,
        "min_lon": 129.045403300000003810055204667150974273681640625,
        "max_lat": 35.01076669999999779747668071649968624114990234375,
        "max_lon": 129.0538467000000082407495938241481781005859375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Sts Strait of Gibraltar Surveillance Zone

Jul 29, 2026 09:17 UTC 85/100 ▼

Vessel A: MMSI 440130480 (STELLA HO) REPUBLIC OF KOREA

Vessel B: MMSI 440114920 (NO.7 HAEGU) REPUBLIC OF KOREA

Minimum Distance: 3 meters
Average Distance: 21 meters
Duration: 1h 19m
Period: 2026-07-29T09:17:23+00:00 to 2026-07-29T10:36:23+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.1 knots
Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (STELLA HO and NO.7 HAEGU) maintained close proximity (min 3m, avg 21m) for 79 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 3m, avg 21m
Duration	15/25	Duration 79 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±10m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 440130480,
        "name": "STELLA HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440114920,
        "name": "NO.7 HAEGU",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 3.399999999999999911182158029987476766109466552734375,
    "avg_distance_m": 21.199999999999999289457264239899814128875732421875,
    "distance_consistency_m": 9.699999999999999289457264239899814128875732421875,
    "duration_minutes": 79,
    "overlap_duration_s": 4740,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0.11000000000000000055511151231257827021181583404541015625,
    "speed_b_std": 0.13000000000000000444089209850062616169452667236328125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.11000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-07-29T09:17:23+00:00",
        "end": "2026-07-29T10:36:23+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 3m, avg 21m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 79 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b110m"
            },
            "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 (STELLA HO and NO.7 HAEGU) maintained close proximity (min 3m, avg 21m) for 79 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 29, 2026 09:02 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 4h 8m
Data Points: 50 AIS positions
Period: 2026-07-29T09:02:52+00:00 to 2026-07-29T13:11:17+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 248.400000000000005684341886080801486968994140625,
    "points_in_zone": 50,
    "first_point": {
        "ts": "2026-07-29T09:02:52+00:00",
        "lat": 35.01150499999999965439201332628726959228515625,
        "lon": 129.04851500000000896761775948107242584228515625
    },
    "last_point": {
        "ts": "2026-07-29T13:11:17+00:00",
        "lat": 35.01045830000000336212906404398381710052490234375,
        "lon": 129.0538467000000082407495938241481781005859375
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone

Jul 29, 2026 09:02 UTC 75.0% ▼

Duration: 4h 8m
Radius: 592 meters
Data Points: 50 AIS positions
Centroid: 35.0093, 129.0475
Zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 591.6000000000000227373675443232059478759765625,
    "duration_minutes": 248.400000000000005684341886080801486968994140625,
    "points": 50,
    "centroid": {
        "lat": 35.00933382599999532658330281265079975128173828125,
        "lon": 129.047511102000015625890227966010570526123046875
    },
    "bbox": {
        "min_lat": 35.00808330000000268000803771428763866424560546875,
        "min_lon": 129.044633299999986775219440460205078125,
        "max_lat": 35.01150499999999965439201332628726959228515625,
        "max_lon": 129.0538467000000082407495938241481781005859375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Sts Strait of Gibraltar Surveillance Zone

Jul 29, 2026 09:00 UTC 85/100 ▼

Vessel A: MMSI 440308690 (CHEONGHAE3HO) REPUBLIC OF KOREA

Vessel B: MMSI 440130480 (STELLA HO) REPUBLIC OF KOREA

Minimum Distance: 10 meters
Average Distance: 60 meters
Duration: 4h 9m
Period: 2026-07-29T09:00:06+00:00 to 2026-07-29T13:09:35+00:00
Vessel A Avg Speed: 0.2 knots
Vessel B Avg Speed: 0.2 knots
Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (CHEONGHAE3HO and STELLA HO) maintained close proximity (min 10m, avg 60m) for 250 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.2 knots). Moderate distance variation observed during the encounter. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 10m, avg 60m
Duration	25/25	Duration 250 minutes
Speed Stability	17/20	both nearly stationary; stable speeds
Distance Consistency	8/15	Distance variance ±80m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 440308690,
        "name": "CHEONGHAE3HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440130480,
        "name": "STELLA HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 9.5,
    "avg_distance_m": 60.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 80.5,
    "duration_minutes": 249.5,
    "overlap_duration_s": 14969,
    "speed_a_avg": 0.190000000000000002220446049250313080847263336181640625,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.179999999999999993338661852249060757458209991455078125,
    "speed_b_std": 0.340000000000000024424906541753443889319896697998046875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.190000000000000002220446049250313080847263336181640625,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        },
        "vessel_b": {
            "avg_sog": 0.179999999999999993338661852249060757458209991455078125,
            "max_sog": 1.8000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-07-29T09:00:06+00:00",
        "end": "2026-07-29T13:09:35+00:00"
    },
    "points_count": {
        "vessel_a": 56,
        "vessel_b": 56
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 10m, avg 60m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 250 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b180m"
            },
            "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 (CHEONGHAE3HO and STELLA HO) maintained close proximity (min 10m, avg 60m) for 250 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.2 knots). Moderate distance variation observed during the encounter. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone

Jul 29, 2026 08:33 UTC 75.0% ▼

Duration: 4h 38m
Radius: 841 meters
Data Points: 59 AIS positions
Centroid: 35.0105, 129.0475
Zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 841.299999999999954525264911353588104248046875,
    "duration_minutes": 278.1000000000000227373675443232059478759765625,
    "points": 59,
    "centroid": {
        "lat": 35.01050126610169854757259599864482879638671875,
        "lon": 129.047533986440697617581463418900966644287109375
    },
    "bbox": {
        "min_lat": 35.00808330000000268000803771428763866424560546875,
        "min_lon": 129.044633299999986775219440460205078125,
        "max_lat": 35.01805999999999841065800865180790424346923828125,
        "max_lon": 129.0538467000000082407495938241481781005859375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 29, 2026 08:19 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 4h 51m
Data Points: 63 AIS positions
Period: 2026-07-29T08:19:35+00:00 to 2026-07-29T13:11:17+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 291.69999999999998863131622783839702606201171875,
    "points_in_zone": 63,
    "first_point": {
        "ts": "2026-07-29T08:19:35+00:00",
        "lat": 35.021940000000000736690708436071872711181640625,
        "lon": 129.07558330000000523796188645064830780029296875
    },
    "last_point": {
        "ts": "2026-07-29T13:11:17+00:00",
        "lat": 35.01045830000000336212906404398381710052490234375,
        "lon": 129.0538467000000082407495938241481781005859375
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Strait of Gibraltar Surveillance Zone

Jul 25, 2026 00:03 UTC 85/100 ▼

Vessel A: MMSI 440130480 (STELLA HO) REPUBLIC OF KOREA

Vessel B: IMO 9331048 (T HALIME) RUSSIA

Minimum Distance: 26 meters
Average Distance: 44 meters
Duration: 1h 15m
Period: 2026-07-25T00:03:40+00:00 to 2026-07-25T01:18:59+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.1 knots
Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (STELLA HO and T HALIME) maintained close proximity (min 26m, avg 44m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 26m, avg 44m
Duration	15/25	Duration 75 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±7m
Isolation	5/10	Isolation data not available
Context	5/5	In 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: 2026-07-25T06:45:01.940542+00:00

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 440130480,
        "name": "STELLA HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 273128310,
        "imo": 9331048,
        "name": "T HALIME",
        "flag": "RUSSIA"
    },
    "min_distance_m": 26.10000000000000142108547152020037174224853515625,
    "avg_distance_m": 43.89999999999999857891452847979962825775146484375,
    "distance_consistency_m": 7,
    "duration_minutes": 75.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 4519,
    "speed_a_avg": 0.070000000000000006661338147750939242541790008544921875,
    "speed_a_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.070000000000000006661338147750939242541790008544921875,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-07-25T00:03:40+00:00",
        "end": "2026-07-25T01:18:59+00:00"
    },
    "points_count": {
        "vessel_a": 15,
        "vessel_b": 15
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 26m, avg 44m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 75 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \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 (STELLA HO and T HALIME) maintained close proximity (min 26m, avg 44m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.00874830000000059726517065428197383880615234375,
            "lon": 129.0494416999999884865246713161468505859375
        },
        "time_window": {
            "start_ts": "2026-07-25T00:03:40+00:00",
            "end_ts": "2026-07-25T01:18:59+00:00"
        },
        "searched_at": "2026-07-25T06:45:01.940542+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 25, 2026 00:03 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 1h 26m
Data Points: 21 AIS positions
Period: 2026-07-25T00:03:40+00:00 to 2026-07-25T01:29:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 86,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-07-25T00:03:40+00:00",
        "lat": 35.00937330000000002883098204620182514190673828125,
        "lon": 129.04897829999998748462530784308910369873046875
    },
    "last_point": {
        "ts": "2026-07-25T01:29:39+00:00",
        "lat": 35.0269832999999977118932292796671390533447265625,
        "lon": 129.06623669999999037827365100383758544921875
    }
}

Methodology: 2026.01.18

Sts Strait of Gibraltar Surveillance Zone

Jul 24, 2026 23:19 UTC 90/100 ▼

Vessel A: MMSI 440130480 (STELLA HO) REPUBLIC OF KOREA

Vessel B: IMO 9331048 (T HALIME) RUSSIA

Minimum Distance: 26 meters
Average Distance: 44 meters
Duration: 1h 59m
Period: 2026-07-24T23:19:58+00:00 to 2026-07-25T01:18:59+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.0 knots
Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (STELLA HO and T HALIME) maintained close proximity (min 26m, avg 44m) for 119 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 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

Factor	Score	Detail
Distance Tightness	25/25	Min distance 26m, avg 44m
Duration	20/25	Duration 119 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±6m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 440130480,
        "name": "STELLA HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 273128310,
        "imo": 9331048,
        "name": "T HALIME",
        "flag": "RUSSIA"
    },
    "min_distance_m": 26.10000000000000142108547152020037174224853515625,
    "avg_distance_m": 43.5,
    "distance_consistency_m": 5.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 119,
    "overlap_duration_s": 7141,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.13000000000000000444089209850062616169452667236328125,
    "speed_b_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        },
        "vessel_b": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-07-24T23:19:58+00:00",
        "end": "2026-07-25T01:18:59+00:00"
    },
    "points_count": {
        "vessel_a": 23,
        "vessel_b": 23
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 26m, avg 44m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 119 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 (STELLA HO and T HALIME) maintained close proximity (min 26m, avg 44m) for 119 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 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 24, 2026 23:02 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 2h 27m
Data Points: 33 AIS positions
Period: 2026-07-24T23:02:37+00:00 to 2026-07-25T01:29:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 147,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-07-24T23:02:37+00:00",
        "lat": 35.00954829999999873280103201977908611297607421875,
        "lon": 129.04883169999999381616362370550632476806640625
    },
    "last_point": {
        "ts": "2026-07-25T01:29:39+00:00",
        "lat": 35.0269832999999977118932292796671390533447265625,
        "lon": 129.06623669999999037827365100383758544921875
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone

Jul 24, 2026 23:02 UTC 75.0% ▼

Duration: 2h 23m
Radius: 1,003 meters
Data Points: 30 AIS positions
Centroid: 35.0096, 129.0492
Zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 1002.6000000000000227373675443232059478759765625,
    "duration_minutes": 143,
    "points": 30,
    "centroid": {
        "lat": 35.00961050333332735817748471163213253021240234375,
        "lon": 129.049248613333332968977629207074642181396484375
    },
    "bbox": {
        "min_lat": 35.008246700000000828367774374783039093017578125,
        "min_lon": 129.0477349999999887586454860866069793701171875,
        "max_lat": 35.017488299999996570477378554642200469970703125,
        "max_lon": 129.054631699999987404225976206362247467041015625
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Sts🛰️✗ Strait of Gibraltar Surveillance Zone

Jul 24, 2026 22:22 UTC 95/100 ▼

Vessel A: MMSI 440130480 (STELLA HO) REPUBLIC OF KOREA

Vessel B: IMO 9331048 (T HALIME) RUSSIA

Minimum Distance: 26 meters
Average Distance: 43 meters
Duration: 2h 56m
Period: 2026-07-24T22:22:58+00:00 to 2026-07-25T01:18:59+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (STELLA HO and T HALIME) maintained close proximity (min 26m, avg 43m) for 176 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 26m, avg 43m
Duration	25/25	Duration 176 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±6m
Isolation	5/10	Isolation data not available
Context	5/5	In 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: 2026-07-25T04:15:01.591230+00:00

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 440130480,
        "name": "STELLA HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 273128310,
        "imo": 9331048,
        "name": "T HALIME",
        "flag": "RUSSIA"
    },
    "min_distance_m": 26.10000000000000142108547152020037174224853515625,
    "avg_distance_m": 43.10000000000000142108547152020037174224853515625,
    "distance_consistency_m": 5.5,
    "duration_minutes": 176,
    "overlap_duration_s": 10561,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.11000000000000000055511151231257827021181583404541015625,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-07-24T22:22:58+00:00",
        "end": "2026-07-25T01:18:59+00:00"
    },
    "points_count": {
        "vessel_a": 35,
        "vessel_b": 35
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 26m, avg 43m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 176 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 (STELLA HO and T HALIME) maintained close proximity (min 26m, avg 43m) for 176 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.0093193000000013626049621962010860443115234375,
            "lon": 129.049134699999996200858731754124164581298828125
        },
        "time_window": {
            "start_ts": "2026-07-24T22:22:58+00:00",
            "end_ts": "2026-07-25T01:18:59+00:00"
        },
        "searched_at": "2026-07-25T04:15:01.591230+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 24, 2026 22:03 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 3h 26m
Data Points: 46 AIS positions
Period: 2026-07-24T22:03:39+00:00 to 2026-07-25T01:29:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 206,
    "points_in_zone": 46,
    "first_point": {
        "ts": "2026-07-24T22:03:39+00:00",
        "lat": 35.00973499999999916099113761447370052337646484375,
        "lon": 129.04883829999999989013304002583026885986328125
    },
    "last_point": {
        "ts": "2026-07-25T01:29:39+00:00",
        "lat": 35.0269832999999977118932292796671390533447265625,
        "lon": 129.06623669999999037827365100383758544921875
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone

Jul 24, 2026 22:03 UTC 75.0% ▼

Duration: 3h 22m
Radius: 1,006 meters
Data Points: 43 AIS positions
Centroid: 35.0096, 129.0491
Zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 1006.1000000000000227373675443232059478759765625,
    "duration_minutes": 202,
    "points": 43,
    "centroid": {
        "lat": 35.00962562093022967246724874712526798248291015625,
        "lon": 129.049139609302272901913966052234172821044921875
    },
    "bbox": {
        "min_lat": 35.008246700000000828367774374783039093017578125,
        "min_lon": 129.0477349999999887586454860866069793701171875,
        "max_lat": 35.017488299999996570477378554642200469970703125,
        "max_lon": 129.054631699999987404225976206362247467041015625
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Sts Strait of Gibraltar Surveillance Zone

Jul 24, 2026 21:52 UTC 95/100 ▼

Vessel A: IMO 9331048 (T HALIME) RUSSIA

Vessel B: MMSI 440130480 (STELLA HO) REPUBLIC OF KOREA

Minimum Distance: 24 meters
Average Distance: 42 meters
Duration: 3h 24m
Period: 2026-07-24T21:52:19+00:00 to 2026-07-25T01:16:47+00:00
Vessel A Avg Speed: 0.0 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 (T HALIME and STELLA HO) maintained close proximity (min 24m, avg 42m) for 204 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 24m, avg 42m
Duration	25/25	Duration 204 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±8m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 273128310,
        "imo": 9331048,
        "name": "T HALIME",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 440130480,
        "name": "STELLA HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 24.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 42.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 7.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 204.5,
    "overlap_duration_s": 12268,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_b_std": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.08000000000000000166533453693773481063544750213623046875,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-07-24T21:52:19+00:00",
        "end": "2026-07-25T01:16:47+00:00"
    },
    "points_count": {
        "vessel_a": 24,
        "vessel_b": 24
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 24m, avg 42m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 204 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very 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 (T HALIME and STELLA HO) maintained close proximity (min 24m, avg 42m) for 204 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 24, 2026 21:41 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 3h 48m
Data Points: 53 AIS positions
Period: 2026-07-24T21:41:37+00:00 to 2026-07-25T01:29:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 228,
    "points_in_zone": 53,
    "first_point": {
        "ts": "2026-07-24T21:41:37+00:00",
        "lat": 35.02087829999999968322299537248909473419189453125,
        "lon": 129.064661699999987831688486039638519287109375
    },
    "last_point": {
        "ts": "2026-07-25T01:29:39+00:00",
        "lat": 35.0269832999999977118932292796671390533447265625,
        "lon": 129.06623669999999037827365100383758544921875
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone

Jul 24, 2026 21:41 UTC 75.0% ▼

Duration: 3h 44m
Radius: 1,809 meters
Data Points: 50 AIS positions
Centroid: 35.0101, 129.0498
Zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 1808.59999999999990905052982270717620849609375,
    "duration_minutes": 224,
    "points": 50,
    "centroid": {
        "lat": 35.0101162659999971538127283565700054168701171875,
        "lon": 129.0497773319999623709009028971195220947265625
    },
    "bbox": {
        "min_lat": 35.008246700000000828367774374783039093017578125,
        "min_lon": 129.0477349999999887586454860866069793701171875,
        "max_lat": 35.02087829999999968322299537248909473419189453125,
        "max_lon": 129.064661699999987831688486039638519287109375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 24, 2026 02:31 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 1h 5m
Data Points: 24 AIS positions
Period: 2026-07-24T02:31:33+00:00 to 2026-07-24T03:36:34+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 65,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-07-24T02:31:33+00:00",
        "lat": 34.98614830000000353038558387197554111480712890625,
        "lon": 128.85295830000001160442479886114597320556640625
    },
    "last_point": {
        "ts": "2026-07-24T03:36:34+00:00",
        "lat": 35.0276300000000020418156054802238941192626953125,
        "lon": 129.0346749999999929059413261711597442626953125
    }
}

Methodology: 2026.01.18

Ais Gap🛰️✗ Strait of Gibraltar Surveillance Zone

Jul 23, 2026 20:00 UTC 70.0% ▼

Gap Duration: 6h 31m
Last Seen: 2026-07-23T20:00:30+00:00 at 35.0012, 128.9217 (Zone: Strait of Gibraltar Surveillance Zone)
Next Seen: 2026-07-24T02:31:33+00:00 at 34.9861, 128.8530

🛰️ 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: 2026-07-24T02:45:01.634315+00:00

Show Raw Evidence JSON

{
    "gap_minutes": 391.1000000000000227373675443232059478759765625,
    "last_seen": {
        "ts": "2026-07-23T20:00:30+00:00",
        "lat": 35.00122329999999948313416098244488239288330078125,
        "lon": 128.92167169999999032370396889746189117431640625,
        "sog": 9.9000000000000003552713678800500929355621337890625,
        "zone_id": "discovered_001"
    },
    "next_seen": {
        "ts": "2026-07-24T02:31:33+00:00",
        "lat": 34.98614830000000353038558387197554111480712890625,
        "lon": 128.85295830000001160442479886114597320556640625,
        "zone_ids": [
            "discovered_001"
        ]
    },
    "gap_enrichment": {
        "status": "not_found",
        "corridor": {
            "start": {
                "lat": 35.00122329999999948313416098244488239288330078125,
                "lon": 128.92167169999999032370396889746189117431640625,
                "ts": "2026-07-23T20:00:30+00:00"
            },
            "end": {
                "lat": 34.98614830000000353038558387197554111480712890625,
                "lon": 128.85295830000001160442479886114597320556640625,
                "ts": "2026-07-24T02:31:33+00:00"
            },
            "bbox": {
                "min_lat": 34.80596800000000001773514668457210063934326171875,
                "min_lon": 128.633015999999997802660800516605377197265625,
                "max_lat": 35.1814030000000030895535019226372241973876953125,
                "max_lon": 129.1416140000000041254679672420024871826171875
            },
            "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": "2026-07-24T02:45:01.634315+00:00"
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 23, 2026 20:00 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 6h 38m
Data Points: 3 AIS positions
Period: 2026-07-23T20:00:30+00:00 to 2026-07-24T02:39:15+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 398.80000000000001136868377216160297393798828125,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-07-23T20:00:30+00:00",
        "lat": 35.00122329999999948313416098244488239288330078125,
        "lon": 128.92167169999999032370396889746189117431640625
    },
    "last_point": {
        "ts": "2026-07-24T02:39:15+00:00",
        "lat": 34.990960000000001173248165287077426910400390625,
        "lon": 128.877129999999993970050127245485782623291015625
    }
}

Methodology: 2026.01.18

Ais Gap🛰️✗ Strait of Gibraltar Surveillance Zone

Jul 18, 2026 18:32 UTC 70.0% ▼

Gap Duration: 6h 28m
Last Seen: 2026-07-18T18:32:44+00:00 at 35.0024, 128.9174 (Zone: Strait of Gibraltar Surveillance Zone)
Next Seen: 2026-07-19T01:01:09+00:00 at 34.9895, 128.8665

🛰️ 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: 2026-07-19T01:15:01.956790+00:00

Show Raw Evidence JSON

{
    "gap_minutes": 388.3999999999999772626324556767940521240234375,
    "last_seen": {
        "ts": "2026-07-18T18:32:44+00:00",
        "lat": 35.00242829999999827350620762445032596588134765625,
        "lon": 128.917376700000005484980647452175617218017578125,
        "sog": 10,
        "zone_id": "discovered_001"
    },
    "next_seen": {
        "ts": "2026-07-19T01:01:09+00:00",
        "lat": 34.98951170000000132631612359546124935150146484375,
        "lon": 128.866546699999986458351486362516880035400390625,
        "zone_ids": [
            "discovered_001"
        ]
    },
    "gap_enrichment": {
        "status": "not_found",
        "corridor": {
            "start": {
                "lat": 35.00242829999999827350620762445032596588134765625,
                "lon": 128.917376700000005484980647452175617218017578125,
                "ts": "2026-07-18T18:32:44+00:00"
            },
            "end": {
                "lat": 34.98951170000000132631612359546124935150146484375,
                "lon": 128.866546699999986458351486362516880035400390625,
                "ts": "2026-07-19T01:01:09+00:00"
            },
            "bbox": {
                "min_lat": 34.8093319999999977198967826552689075469970703125,
                "min_lon": 128.646598000000011552401701919734477996826171875,
                "max_lat": 35.1826080000000018799255485646426677703857421875,
                "max_lon": 129.137325000000004138200893066823482513427734375
            },
            "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": "2026-07-19T01:15:01.956790+00:00"
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 18, 2026 18:32 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 6h 37m
Data Points: 4 AIS positions
Period: 2026-07-18T18:32:44+00:00 to 2026-07-19T01:09:50+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 397.1000000000000227373675443232059478759765625,
    "points_in_zone": 4,
    "first_point": {
        "ts": "2026-07-18T18:32:44+00:00",
        "lat": 35.00242829999999827350620762445032596588134765625,
        "lon": 128.917376700000005484980647452175617218017578125
    },
    "last_point": {
        "ts": "2026-07-19T01:09:50+00:00",
        "lat": 34.99659669999999778156052343547344207763671875,
        "lon": 128.898556700000000319050741381943225860595703125
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 17, 2026 12:22 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 1h 9m
Data Points: 19 AIS positions
Period: 2026-07-17T12:22:10+00:00 to 2026-07-17T13:31:30+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 69.2999999999999971578290569595992565155029296875,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-07-17T12:22:10+00:00",
        "lat": 35.00825329999999979690983309410512447357177734375,
        "lon": 129.061046699999991460572346113622188568115234375
    },
    "last_point": {
        "ts": "2026-07-17T13:31:30+00:00",
        "lat": 35.029276699999996935730450786650180816650390625,
        "lon": 129.077811700000012251621228642761707305908203125
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 17, 2026 11:01 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 2h 30m
Data Points: 36 AIS positions
Period: 2026-07-17T11:01:29+00:00 to 2026-07-17T13:31:30+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 150,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-07-17T11:01:29+00:00",
        "lat": 35.00776170000000320214894600212574005126953125,
        "lon": 129.06062670000000025538611225783824920654296875
    },
    "last_point": {
        "ts": "2026-07-17T13:31:30+00:00",
        "lat": 35.029276699999996935730450786650180816650390625,
        "lon": 129.077811700000012251621228642761707305908203125
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone

Jul 17, 2026 11:01 UTC 75.0% ▼

Duration: 2h 24m
Radius: 738 meters
Data Points: 34 AIS positions
Centroid: 35.0086, 129.0615
Zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 738.1000000000000227373675443232059478759765625,
    "duration_minutes": 144,
    "points": 34,
    "centroid": {
        "lat": 35.008562838235292247190955094993114471435546875,
        "lon": 129.061514808823545763516449369490146636962890625
    },
    "bbox": {
        "min_lat": 35.0077399999999983037923811934888362884521484375,
        "min_lon": 129.06062670000000025538611225783824920654296875,
        "max_lat": 35.0137782999999984667738317511975765228271484375,
        "max_lon": 129.06653499999998757630237378180027008056640625
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 17, 2026 10:07 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 3h 24m
Data Points: 48 AIS positions
Period: 2026-07-17T10:07:27+00:00 to 2026-07-17T13:31:30+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 204.099999999999994315658113919198513031005859375,
    "points_in_zone": 48,
    "first_point": {
        "ts": "2026-07-17T10:07:27+00:00",
        "lat": 35.00795000000000101181285572238266468048095703125,
        "lon": 129.060795000000013033059076406061649322509765625
    },
    "last_point": {
        "ts": "2026-07-17T13:31:30+00:00",
        "lat": 35.029276699999996935730450786650180816650390625,
        "lon": 129.077811700000012251621228642761707305908203125
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone

Jul 17, 2026 10:07 UTC 75.0% ▼

Duration: 3h 18m
Radius: 770 meters
Data Points: 46 AIS positions
Centroid: 35.0083, 129.0613
Zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 769.8999999999999772626324556767940521240234375,
    "duration_minutes": 198.099999999999994315658113919198513031005859375,
    "points": 46,
    "centroid": {
        "lat": 35.0083139086956407481920905411243438720703125,
        "lon": 129.0613349326087018198450095951557159423828125
    },
    "bbox": {
        "min_lat": 35.00736169999999702895365771837532520294189453125,
        "min_lon": 129.06062670000000025538611225783824920654296875,
        "max_lat": 35.0137782999999984667738317511975765228271484375,
        "max_lon": 129.06653499999998757630237378180027008056640625
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 17, 2026 09:01 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 4h 30m
Data Points: 64 AIS positions
Period: 2026-07-17T09:01:26+00:00 to 2026-07-17T13:31:30+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 270.1000000000000227373675443232059478759765625,
    "points_in_zone": 64,
    "first_point": {
        "ts": "2026-07-17T09:01:26+00:00",
        "lat": 35.014043299999997316263034008443355560302734375,
        "lon": 129.069183299999991731965565122663974761962890625
    },
    "last_point": {
        "ts": "2026-07-17T13:31:30+00:00",
        "lat": 35.029276699999996935730450786650180816650390625,
        "lon": 129.077811700000012251621228642761707305908203125
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone

Jul 17, 2026 09:01 UTC 75.0% ▼

Duration: 4h 24m
Radius: 910 meters
Data Points: 62 AIS positions
Centroid: 35.0086, 129.0617
Zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 909.5,
    "duration_minutes": 264.1000000000000227373675443232059478759765625,
    "points": 62,
    "centroid": {
        "lat": 35.008636532258066154099651612341403961181640625,
        "lon": 129.061692959677429826115258038043975830078125
    },
    "bbox": {
        "min_lat": 35.00736169999999702895365771837532520294189453125,
        "min_lon": 129.058963299999987839328241534531116485595703125,
        "max_lat": 35.014043299999997316263034008443355560302734375,
        "max_lon": 129.069183299999991731965565122663974761962890625
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone

Jul 17, 2026 08:56 UTC 80.0% ▼

Zone: Strait of Gibraltar Surveillance Zone
Duration: 4h 35m
Data Points: 66 AIS positions
Period: 2026-07-17T08:56:06+00:00 to 2026-07-17T13:31:30+00:00

Show Raw Evidence JSON

{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 275.3999999999999772626324556767940521240234375,
    "points_in_zone": 66,
    "first_point": {
        "ts": "2026-07-17T08:56:06+00:00",
        "lat": 35.0187566999999972949808579869568347930908203125,
        "lon": 129.074804999999997789927874691784381866455078125
    },
    "last_point": {
        "ts": "2026-07-17T13:31:30+00:00",
        "lat": 35.029276699999996935730450786650180816650390625,
        "lon": 129.077811700000012251621228642761707305908203125
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone

Jul 17, 2026 08:56 UTC 75.0% ▼

Duration: 4h 29m
Radius: 1,596 meters
Data Points: 64 AIS positions
Centroid: 35.0089, 129.0621
Zone: Strait of Gibraltar Surveillance Zone

Show Raw Evidence JSON

{
    "radius_m": 1596.09999999999990905052982270717620849609375,
    "duration_minutes": 269.3999999999999772626324556767940521240234375,
    "points": 64,
    "centroid": {
        "lat": 35.00888864687500046102286432869732379913330078125,
        "lon": 129.062079612500014036413631401956081390380859375
    },
    "bbox": {
        "min_lat": 35.00736169999999702895365771837532520294189453125,
        "min_lon": 129.058963299999987839328241534531116485595703125,
        "max_lat": 35.0187566999999972949808579869568347930908203125,
        "max_lon": 129.074804999999997789927874691784381866455078125
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Time (UTC)	Lat	Lon	Speed	Course	Zone
Jul 31 12:22	35.1863	129.2471	10.0 kn	215.5°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 31 12:17	35.1971	129.2559	10.0 kn	214.1°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 31 12:14	35.2034	129.2608	10.1 kn	211.2°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 31 12:11	35.2106	129.2666	10.2 kn	213.3°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 31 12:10	35.2137	129.2692	10.2 kn	214.7°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 31 12:08	35.2191	129.2737	10.1 kn	212.6°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 31 12:02	35.2331	129.2844	9.7 kn	212.2°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 31 11:57	35.2444	129.2933	9.5 kn	214.6°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 31 11:45	35.2699	129.3144	9.4 kn	212.9°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 31 11:41	35.2779	129.3206	9.4 kn	214.5°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 31 11:37	35.2876	129.3283	9.6 kn	216.1°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 30 11:27	35.2937	129.3366	11.8 kn	37.5°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 30 11:24	35.2857	129.3293	12.0 kn	33.1°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 30 11:06	35.2368	129.2901	11.9 kn	34.3°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 30 11:01	35.2228	129.2792	11.8 kn	31.3°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 30 11:00	35.2182	129.2757	11.6 kn	32.5°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 30 10:54	35.2032	129.2631	11.1 kn	36.1°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 30 10:51	35.1950	129.2557	10.9 kn	33.8°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 30 10:49	35.1900	129.2514	11.0 kn	34.8°	Gulf of Cádiz Sanctions Monitoring Zone
Jul 30 10:48	35.1874	129.2493	10.9 kn	33.7°	Gulf of Cádiz Sanctions Monitoring Zone

STELLA HO

Vessel information

Detected Events (42)

🛰️ Gap Corroboration

SAR Imagery (Sentinel-1)

VIIRS Thermal Anomaly

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

Confidence Analysis

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

🛰️ Gap Corroboration

SAR Imagery (Sentinel-1)

VIIRS Thermal Anomaly

🛰️ Gap Corroboration

SAR Imagery (Sentinel-1)

VIIRS Thermal Anomaly

Recent Position Data

Data Source

STELLA HO

Vessel information

Detected Events (42)

🛰️ Gap Corroboration

SAR Imagery (Sentinel-1)

VIIRS Thermal Anomaly

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

Confidence Analysis

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

🛰️ Gap Corroboration

SAR Imagery (Sentinel-1)

VIIRS Thermal Anomaly

🛰️ Gap Corroboration

SAR Imagery (Sentinel-1)

VIIRS Thermal Anomaly

Recent Position Data

Data Source

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