DAE IL

Vessel information

Vessel Name DAE IL
MMSI 440035420
Vessel Type Tanker
Flag 🏳️ REPUBLIC OF KOREA
Call Sign SSD
Length 40 m
Beam 10 m

Detected Events (26)

Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 28, 2026 02:24 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 1h 16m
  • Data Points: 18 AIS positions
  • Period: 2026-07-28T02:24:08+00:00 to 2026-07-28T03:41:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 76.900000000000005684341886080801486968994140625,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-07-28T02:24:08+00:00",
        "lat": 35.0291050000000012687451089732348918914794921875,
        "lon": 129.10376669999999421634129248559474945068359375
    },
    "last_point": {
        "ts": "2026-07-28T03:41:04+00:00",
        "lat": 34.93846330000000222071321331895887851715087890625,
        "lon": 129.000145000000003392415237613022327423095703125
    }
}
Methodology: 2026.01.18
Sts Strait of Gibraltar Surveillance Zone
Jul 25, 2026 12:04 UTC 80/100 ▼
Vessel A: SEAHORSE (SEAHORSE) CAMEROON
Vessel B: MMSI 440035420 (DAE IL) REPUBLIC OF KOREA
  • Minimum Distance: 48 meters
  • Average Distance: 53 meters
  • Duration: 54 minutes
  • Period: 2026-07-25T12:32:39+00:00 to 2026-07-25T13:26:38+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (SEAHORSE and DAE IL) maintained close proximity (min 48m, avg 53m) for 54 minutes. Both vessels were slow-moving (avg speeds 0.1 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 48m, avg 53m
Duration10/25Duration 54 minutes
Speed Stability20/20both nearly stationary; very 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": 613541600,
        "imo": 9266750,
        "name": "SEAHORSE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 440035420,
        "name": "DAE IL",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 47.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 53.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 4.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 54,
    "overlap_duration_s": 3239,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0.299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-25T12:32:39+00:00",
        "end": "2026-07-25T13:26:38+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 48m, avg 53m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 54 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 (SEAHORSE and DAE IL) maintained close proximity (min 48m, avg 53m) for 54 minutes. Both vessels were slow-moving (avg speeds 0.1 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 25, 2026 12:00 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 1h 34m
  • Data Points: 27 AIS positions
  • Period: 2026-07-25T12:00:56+00:00 to 2026-07-25T13:34:56+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 94,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-07-25T12:00:56+00:00",
        "lat": 35.0088616999999970857970765791833400726318359375,
        "lon": 129.0542550000000119325704872608184814453125
    },
    "last_point": {
        "ts": "2026-07-25T13:34:56+00:00",
        "lat": 35.0289250000000009777068044058978557586669921875,
        "lon": 129.0683017000000063490006141364574432373046875
    }
}
Methodology: 2026.01.18
Sts Strait of Gibraltar Surveillance Zone
Jul 25, 2026 11:19 UTC 90/100 ▼
Vessel A: SEAHORSE (SEAHORSE) CAMEROON
Vessel B: MMSI 440035420 (DAE IL) REPUBLIC OF KOREA
  • Minimum Distance: 48 meters
  • Average Distance: 53 meters
  • Duration: 1h 48m
  • Period: 2026-07-25T11:38:33+00:00 to 2026-07-25T13:26:38+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: 90/100

High-confidence STS candidate. Two tankers (SEAHORSE and DAE IL) maintained close proximity (min 48m, avg 53m) for 108 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
FactorScoreDetail
Distance Tightness25/25Min distance 48m, avg 53m
Duration20/25Duration 108 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613541600,
        "imo": 9266750,
        "name": "SEAHORSE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 440035420,
        "name": "DAE IL",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 47.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 53.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 108.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 6485,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_std": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.14000000000000001332267629550187848508358001708984375,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-25T11:38:33+00:00",
        "end": "2026-07-25T13:26:38+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 48m, avg 53m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 108 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (SEAHORSE and DAE IL) maintained close proximity (min 48m, avg 53m) for 108 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 25, 2026 11:03 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 2h 31m
  • Data Points: 40 AIS positions
  • Period: 2026-07-25T11:03:35+00:00 to 2026-07-25T13:34:56+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 151.30000000000001136868377216160297393798828125,
    "points_in_zone": 40,
    "first_point": {
        "ts": "2026-07-25T11:03:35+00:00",
        "lat": 35.00906830000000269365045824088156223297119140625,
        "lon": 129.054065000000008467395673505961894989013671875
    },
    "last_point": {
        "ts": "2026-07-25T13:34:56+00:00",
        "lat": 35.0289250000000009777068044058978557586669921875,
        "lon": 129.0683017000000063490006141364574432373046875
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 25, 2026 11:03 UTC 75.0% ▼
  • Duration: 2h 25m
  • Radius: 1,107 meters
  • Data Points: 37 AIS positions
  • Centroid: 35.0089, 129.0546
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 1106.59999999999990905052982270717620849609375,
    "duration_minutes": 145.69999999999998863131622783839702606201171875,
    "points": 37,
    "centroid": {
        "lat": 35.00892185405404433140574838034808635711669921875,
        "lon": 129.05464036486483792032231576740741729736328125
    },
    "bbox": {
        "min_lat": 35.00777329999999665233190171420574188232421875,
        "min_lon": 129.053975000000008321876521222293376922607421875,
        "max_lat": 35.01721169999999716537786298431456089019775390625,
        "max_lon": 129.061383299999988594208844006061553955078125
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Sts Strait of Gibraltar Surveillance Zone
Jul 25, 2026 10:48 UTC 95/100 ▼
Vessel A: SEAHORSE (SEAHORSE) CAMEROON
Vessel B: MMSI 440035420 (DAE IL) REPUBLIC OF KOREA
  • Minimum Distance: 48 meters
  • Average Distance: 53 meters
  • Duration: 2h 30m
  • Period: 2026-07-25T10:56:33+00:00 to 2026-07-25T13:26:38+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 (SEAHORSE and DAE IL) maintained close proximity (min 48m, avg 53m) for 150 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
FactorScoreDetail
Distance Tightness25/25Min distance 48m, avg 53m
Duration25/25Duration 150 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613541600,
        "imo": 9266750,
        "name": "SEAHORSE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 440035420,
        "name": "DAE IL",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 47.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 53.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 150.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 9005,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.11999999999999999555910790149937383830547332763671875,
    "speed_b_std": 0.179999999999999993338661852249060757458209991455078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.11999999999999999555910790149937383830547332763671875,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-25T10:56:33+00:00",
        "end": "2026-07-25T13:26:38+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 48m, avg 53m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 150 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (SEAHORSE and DAE IL) maintained close proximity (min 48m, avg 53m) for 150 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 25, 2026 10:04 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 3h 30m
  • Data Points: 54 AIS positions
  • Period: 2026-07-25T10:04:14+00:00 to 2026-07-25T13:34:56+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 210.69999999999998863131622783839702606201171875,
    "points_in_zone": 54,
    "first_point": {
        "ts": "2026-07-25T10:04:14+00:00",
        "lat": 35.00925670000000167192411026917397975921630859375,
        "lon": 129.053853299999985893009579740464687347412109375
    },
    "last_point": {
        "ts": "2026-07-25T13:34:56+00:00",
        "lat": 35.0289250000000009777068044058978557586669921875,
        "lon": 129.0683017000000063490006141364574432373046875
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 25, 2026 10:04 UTC 75.0% ▼
  • Duration: 3h 25m
  • Radius: 1,110 meters
  • Data Points: 51 AIS positions
  • Centroid: 35.0090, 129.0544
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 1109.59999999999990905052982270717620849609375,
    "duration_minutes": 205.099999999999994315658113919198513031005859375,
    "points": 51,
    "centroid": {
        "lat": 35.0089979784313669597395346499979496002197265625,
        "lon": 129.054445721568612270857556723058223724365234375
    },
    "bbox": {
        "min_lat": 35.00777329999999665233190171420574188232421875,
        "min_lon": 129.053821699999986094553605653345584869384765625,
        "max_lat": 35.01721169999999716537786298431456089019775390625,
        "max_lon": 129.061383299999988594208844006061553955078125
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Sts🛰️✗ Strait of Gibraltar Surveillance Zone
Jul 25, 2026 09:05 UTC 85/100 ▼
Vessel A: MMSI 440035420 (DAE IL) REPUBLIC OF KOREA
Vessel B: SEAHORSE (SEAHORSE) CAMEROON
  • Minimum Distance: 51 meters
  • Average Distance: 57 meters
  • Duration: 1h 2m
  • Period: 2026-07-25T09:05:55+00:00 to 2026-07-25T10:08:24+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: 85/100

High-confidence STS candidate. Two tankers (DAE IL and SEAHORSE) maintained close proximity (min 51m, avg 57m) for 62 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
FactorScoreDetail
Distance Tightness25/25Min distance 51m, avg 57m
Duration15/25Duration 62 minutes
Speed Stability20/20both nearly stationary; very 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: 2026-07-25T15:30:01.615292+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440035420,
        "name": "DAE IL",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 613541600,
        "imo": 9266750,
        "name": "SEAHORSE",
        "flag": "CAMEROON"
    },
    "min_distance_m": 50.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 57.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 4.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 62.5,
    "overlap_duration_s": 3749,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-25T09:05:55+00:00",
        "end": "2026-07-25T10:08:24+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 51m, avg 57m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 62 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (DAE IL and SEAHORSE) maintained close proximity (min 51m, avg 57m) for 62 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."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.0093681999999972731529851444065570831298828125,
            "lon": 129.054067800000012766759027726948261260986328125
        },
        "time_window": {
            "start_ts": "2026-07-25T09:05:55+00:00",
            "end_ts": "2026-07-25T10:08:24+00:00"
        },
        "searched_at": "2026-07-25T15:30:01.615292+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 09:00 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 4h 34m
  • Data Points: 68 AIS positions
  • Period: 2026-07-25T09:00:45+00:00 to 2026-07-25T13:34:56+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 274.19999999999998863131622783839702606201171875,
    "points_in_zone": 68,
    "first_point": {
        "ts": "2026-07-25T09:00:45+00:00",
        "lat": 35.0093083000000007132257451303303241729736328125,
        "lon": 129.05387500000000500222085975110530853271484375
    },
    "last_point": {
        "ts": "2026-07-25T13:34:56+00:00",
        "lat": 35.0289250000000009777068044058978557586669921875,
        "lon": 129.0683017000000063490006141364574432373046875
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 25, 2026 09:00 UTC 75.0% ▼
  • Duration: 4h 28m
  • Radius: 1,111 meters
  • Data Points: 65 AIS positions
  • Centroid: 35.0091, 129.0543
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 1110.5,
    "duration_minutes": 268.6000000000000227373675443232059478759765625,
    "points": 65,
    "centroid": {
        "lat": 35.009074696923079272892209701240062713623046875,
        "lon": 129.054296924615385933066136203706264495849609375
    },
    "bbox": {
        "min_lat": 35.00777329999999665233190171420574188232421875,
        "min_lon": 129.0536832999999887761077843606472015380859375,
        "max_lat": 35.01721169999999716537786298431456089019775390625,
        "max_lon": 129.061383299999988594208844006061553955078125
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 25, 2026 08:13 UTC 75.0% ▼
  • Duration: 5h 16m
  • Radius: 1,091 meters
  • Data Points: 78 AIS positions
  • Centroid: 35.0094, 129.0541
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 1090.799999999999954525264911353588104248046875,
    "duration_minutes": 316,
    "points": 78,
    "centroid": {
        "lat": 35.0094002179487091552800848148763179779052734375,
        "lon": 129.054125279487180932846968062222003936767578125
    },
    "bbox": {
        "min_lat": 35.00777329999999665233190171420574188232421875,
        "min_lon": 129.05106169999999110586941242218017578125,
        "max_lat": 35.01721169999999716537786298431456089019775390625,
        "max_lon": 129.061383299999988594208844006061553955078125
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Sts Strait of Gibraltar Surveillance Zone
Jul 25, 2026 08:09 UTC 79/100 ▼
Vessel A: SEAHORSE (SEAHORSE) CAMEROON
Vessel B: MMSI 440035420 (DAE IL) REPUBLIC OF KOREA
  • Minimum Distance: 47 meters
  • Average Distance: 130 meters
  • Duration: 5h 16m
  • Period: 2026-07-25T08:09:49+00:00 to 2026-07-25T13:26:38+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.5 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 79/100

Moderate-confidence STS candidate. Two tankers (SEAHORSE and DAE IL) maintained close proximity (min 47m, avg 130m) for 317 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.5 knots). Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 47m, avg 130m
Duration25/25Duration 317 minutes
Speed Stability14/20both nearly stationary; somewhat variable speeds
Distance Consistency5/15Distance variance ±147m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613541600,
        "imo": 9266750,
        "name": "SEAHORSE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 440035420,
        "name": "DAE IL",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 47.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 130,
    "distance_consistency_m": 147.30000000000001136868377216160297393798828125,
    "duration_minutes": 316.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 19009,
    "speed_a_avg": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_a_std": 0.2399999999999999911182158029987476766109466552734375,
    "speed_b_avg": 0.5,
    "speed_b_std": 0.67000000000000003996802888650563545525074005126953125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1600000000000000033306690738754696212708950042724609375,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        },
        "vessel_b": {
            "avg_sog": 0.5,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
        }
    },
    "time_window": {
        "start": "2026-07-25T08:09:49+00:00",
        "end": "2026-07-25T13:26:38+00:00"
    },
    "points_count": {
        "vessel_a": 25,
        "vessel_b": 25
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 79,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 47m, avg 130m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 317 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 5,
                "max": 15,
                "detail": "Distance variance \u00b1147m"
            },
            "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 (SEAHORSE and DAE IL) maintained close proximity (min 47m, avg 130m) for 317 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.5 knots). 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 25, 2026 08:01 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 5h 33m
  • Data Points: 85 AIS positions
  • Period: 2026-07-25T08:01:39+00:00 to 2026-07-25T13:34:56+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 333.30000000000001136868377216160297393798828125,
    "points_in_zone": 85,
    "first_point": {
        "ts": "2026-07-25T08:01:39+00:00",
        "lat": 35.02522499999999894271240918897092342376708984375,
        "lon": 129.076493300000009867289918474853038787841796875
    },
    "last_point": {
        "ts": "2026-07-25T13:34:56+00:00",
        "lat": 35.0289250000000009777068044058978557586669921875,
        "lon": 129.0683017000000063490006141364574432373046875
    }
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 25, 2026 07:57 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 5h 37m
  • Data Points: 87 AIS positions
  • Period: 2026-07-25T07:57:46+00:00 to 2026-07-25T13:34:56+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 337.19999999999998863131622783839702606201171875,
    "points_in_zone": 87,
    "first_point": {
        "ts": "2026-07-25T07:57:46+00:00",
        "lat": 35.0272482999999965613824315369129180908203125,
        "lon": 129.07701170000001411608536727726459503173828125
    },
    "last_point": {
        "ts": "2026-07-25T13:34:56+00:00",
        "lat": 35.0289250000000009777068044058978557586669921875,
        "lon": 129.0683017000000063490006141364574432373046875
    }
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 23, 2026 14:01 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 2h 36m
  • Data Points: 21 AIS positions
  • Period: 2026-07-23T14:01:25+00:00 to 2026-07-23T16:37:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 156,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-07-23T14:01:25+00:00",
        "lat": 35.01076669999999779747668071649968624114990234375,
        "lon": 129.052993299999997134364093653857707977294921875
    },
    "last_point": {
        "ts": "2026-07-23T16:37:25+00:00",
        "lat": 35.008641699999998309067450463771820068359375,
        "lon": 128.99723499999998921339283697307109832763671875
    }
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 23, 2026 13:02 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 3h 35m
  • Data Points: 34 AIS positions
  • Period: 2026-07-23T13:02:04+00:00 to 2026-07-23T16:37:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 215.30000000000001136868377216160297393798828125,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-07-23T13:02:04+00:00",
        "lat": 35.0108182999999968387783155776560306549072265625,
        "lon": 129.0530082999999876847141422331333160400390625
    },
    "last_point": {
        "ts": "2026-07-23T16:37:25+00:00",
        "lat": 35.008641699999998309067450463771820068359375,
        "lon": 128.99723499999998921339283697307109832763671875
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 23, 2026 13:02 UTC 75.0% ▼
  • Duration: 1h 36m
  • Radius: 784 meters
  • Data Points: 22 AIS positions
  • Centroid: 35.0112, 129.0532
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 783.799999999999954525264911353588104248046875,
    "duration_minutes": 96.7000000000000028421709430404007434844970703125,
    "points": 22,
    "centroid": {
        "lat": 35.01120561818181187163645518012344837188720703125,
        "lon": 129.0532438590909123377059586346149444580078125
    },
    "bbox": {
        "min_lat": 35.01064000000000220325091504491865634918212890625,
        "min_lon": 129.0529017000000067127984948456287384033203125,
        "max_lat": 35.01784169999999818401192896999418735504150390625,
        "max_lon": 129.05619169999999940046109259128570556640625
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 23, 2026 12:00 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 4h 36m
  • Data Points: 47 AIS positions
  • Period: 2026-07-23T12:00:44+00:00 to 2026-07-23T16:37:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 276.69999999999998863131622783839702606201171875,
    "points_in_zone": 47,
    "first_point": {
        "ts": "2026-07-23T12:00:44+00:00",
        "lat": 35.01039829999999852816472412087023258209228515625,
        "lon": 129.053198299999991149888955987989902496337890625
    },
    "last_point": {
        "ts": "2026-07-23T16:37:25+00:00",
        "lat": 35.008641699999998309067450463771820068359375,
        "lon": 128.99723499999998921339283697307109832763671875
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 23, 2026 12:00 UTC 75.0% ▼
  • Duration: 2h 38m
  • Radius: 810 meters
  • Data Points: 35 AIS positions
  • Centroid: 35.0110, 129.0532
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 810,
    "duration_minutes": 158,
    "points": 35,
    "centroid": {
        "lat": 35.01096862285714195195396314375102519989013671875,
        "lon": 129.05319657142854339326731860637664794921875
    },
    "bbox": {
        "min_lat": 35.0103050000000024510882212780416011810302734375,
        "min_lon": 129.0529017000000067127984948456287384033203125,
        "max_lat": 35.01784169999999818401192896999418735504150390625,
        "max_lon": 129.05619169999999940046109259128570556640625
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 23, 2026 11:02 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 5h 35m
  • Data Points: 62 AIS positions
  • Period: 2026-07-23T11:02:03+00:00 to 2026-07-23T16:37:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 335.3999999999999772626324556767940521240234375,
    "points_in_zone": 62,
    "first_point": {
        "ts": "2026-07-23T11:02:03+00:00",
        "lat": 35.01076830000000228437784244306385517120361328125,
        "lon": 129.0548367000000098414602689445018768310546875
    },
    "last_point": {
        "ts": "2026-07-23T16:37:25+00:00",
        "lat": 35.008641699999998309067450463771820068359375,
        "lon": 128.99723499999998921339283697307109832763671875
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 23, 2026 11:02 UTC 75.0% ▼
  • Duration: 3h 36m
  • Radius: 822 meters
  • Data Points: 50 AIS positions
  • Centroid: 35.0109, 129.0532
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 821.700000000000045474735088646411895751953125,
    "duration_minutes": 216.69999999999998863131622783839702606201171875,
    "points": 50,
    "centroid": {
        "lat": 35.01085143599999582875170744955539703369140625,
        "lon": 129.053216735999967568204738199710845947265625
    },
    "bbox": {
        "min_lat": 35.0103050000000024510882212780416011810302734375,
        "min_lon": 129.0529017000000067127984948456287384033203125,
        "max_lat": 35.01784169999999818401192896999418735504150390625,
        "max_lon": 129.05619169999999940046109259128570556640625
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 23, 2026 10:32 UTC 75.0% ▼
  • Duration: 4h 6m
  • Radius: 1,068 meters
  • Data Points: 61 AIS positions
  • Centroid: 35.0108, 129.0536
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 1068.40000000000009094947017729282379150390625,
    "duration_minutes": 246.30000000000001136868377216160297393798828125,
    "points": 61,
    "centroid": {
        "lat": 35.01084991967213255747992661781609058380126953125,
        "lon": 129.0536113409835934362490661442279815673828125
    },
    "bbox": {
        "min_lat": 35.00712829999999797792042954824864864349365234375,
        "min_lon": 129.050713300000012395685189403593540191650390625,
        "max_lat": 35.01829330000000339850885211490094661712646484375,
        "max_lon": 129.06103830000000698419171385467052459716796875
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 23, 2026 10:23 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 13m
  • Data Points: 76 AIS positions
  • Period: 2026-07-23T10:23:49+00:00 to 2026-07-23T16:37:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 373.6000000000000227373675443232059478759765625,
    "points_in_zone": 76,
    "first_point": {
        "ts": "2026-07-23T10:23:49+00:00",
        "lat": 35.02971000000000145746525959111750125885009765625,
        "lon": 129.07449669999999741776264272630214691162109375
    },
    "last_point": {
        "ts": "2026-07-23T16:37:25+00:00",
        "lat": 35.008641699999998309067450463771820068359375,
        "lon": 128.99723499999998921339283697307109832763671875
    }
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 17, 2026 05:20 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 1h 15m
  • Data Points: 15 AIS positions
  • Period: 2026-07-17T05:20:41+00:00 to 2026-07-17T06:35:43+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 75,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-07-17T05:20:41+00:00",
        "lat": 35.0303832999999968933479976840317249298095703125,
        "lon": 129.11664999999999281499185599386692047119140625
    },
    "last_point": {
        "ts": "2026-07-17T06:35:43+00:00",
        "lat": 35.00670000000000214868123293854296207427978515625,
        "lon": 128.992088300000006029222276993095874786376953125
    }
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Jul 28 21:27 35.0254 129.1003 10.3 kn 37.1° Strait of Gibraltar Surveillance Zone
Jul 28 21:26 35.0233 129.0984 8.4 kn 37.7° Strait of Gibraltar Surveillance Zone
Jul 28 21:20 35.0128 129.0891 8.4 kn 33.9° Strait of Gibraltar Surveillance Zone
Jul 28 21:19 35.0111 129.0872 8.3 kn 54.0° Strait of Gibraltar Surveillance Zone
Jul 28 21:17 35.0091 129.0822 8.2 kn 74.8° Strait of Gibraltar Surveillance Zone
Jul 28 21:10 35.0057 129.0640 7.9 kn 73.3° Strait of Gibraltar Surveillance Zone
Jul 28 21:08 35.0037 129.0584 8.0 kn 55.8° Strait of Gibraltar Surveillance Zone
Jul 28 21:00 34.9934 129.0410 7.9 kn 49.4° Strait of Gibraltar Surveillance Zone
Jul 28 20:54 34.9852 129.0288 7.8 kn 50.2° Strait of Gibraltar Surveillance Zone
Jul 28 20:43 34.9685 129.0045 7.9 kn 52.6° Strait of Gibraltar Surveillance Zone
Jul 28 20:31 34.9524 128.9808 7.6 kn 44.2° Strait of Gibraltar Surveillance Zone
Jul 28 03:41 34.9385 129.0001 5.5 kn 193.8° Strait of Gibraltar Surveillance Zone
Jul 28 03:24 34.9597 129.0209 6.9 kn 216.3° Strait of Gibraltar Surveillance Zone
Jul 28 03:22 34.9626 129.0239 5.3 kn 227.1° Strait of Gibraltar Surveillance Zone
Jul 28 03:19 34.9659 129.0281 5.6 kn 225.2° Strait of Gibraltar Surveillance Zone
Jul 28 03:14 34.9704 129.0339 5.5 kn 227.1° Strait of Gibraltar Surveillance Zone
Jul 28 03:11 34.9734 129.0380 5.5 kn 230.3° Strait of Gibraltar Surveillance Zone
Jul 28 03:04 34.9813 129.0485 6.4 kn 226.8° Strait of Gibraltar Surveillance Zone
Jul 28 03:01 34.9850 129.0535 5.6 kn 226.6° Strait of Gibraltar Surveillance Zone
Jul 28 02:59 34.9872 129.0565 5.5 kn 227.2° Strait of Gibraltar Surveillance Zone

Showing 20 of 32 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.