NO.7 HAEGU

Vessel information

Vessel Name NO.7 HAEGU
MMSI 440114920
Vessel Type Tanker
Flag 🏳️ REPUBLIC OF KOREA
Call Sign 070058
Length 35 m
Beam 7 m

Detected Events (8)

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
FactorScoreDetail
Distance Tightness25/25Min distance 14m, avg 21m
Duration5/25Duration 34 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-29T16:45:14.396159+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
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
FactorScoreDetail
Distance Tightness25/25Min distance 3m, avg 21m
Duration15/25Duration 79 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±10m
Isolation5/10Isolation data not available
Context5/5In 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
Sts Strait of Gibraltar Surveillance Zone
Jul 29, 2026 09:14 UTC 85/100 ▼
Vessel A: MMSI 440308690 (CHEONGHAE3HO) REPUBLIC OF KOREA
Vessel B: MMSI 440114920 (NO.7 HAEGU) REPUBLIC OF KOREA
  • Minimum Distance: 40 meters
  • Average Distance: 56 meters
  • Duration: 1h 27m
  • Period: 2026-07-29T09:14:43+00:00 to 2026-07-29T10:41:45+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: 85/100

High-confidence STS candidate. Two tankers (CHEONGHAE3HO and NO.7 HAEGU) maintained close proximity (min 40m, avg 56m) for 87 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
FactorScoreDetail
Distance Tightness25/25Min distance 40m, avg 56m
Duration15/25Duration 87 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±9m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440308690,
        "name": "CHEONGHAE3HO",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 440114920,
        "name": "NO.7 HAEGU",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 39.5,
    "avg_distance_m": 55.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 9.300000000000000710542735760100185871124267578125,
    "duration_minutes": 87,
    "overlap_duration_s": 5222,
    "speed_a_avg": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_a_std": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_b_avg": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_b_std": 0.11999999999999999555910790149937383830547332763671875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1499999999999999944488848768742172978818416595458984375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0.1000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-07-29T09:14:43+00:00",
        "end": "2026-07-29T10:41:45+00:00"
    },
    "points_count": {
        "vessel_a": 22,
        "vessel_b": 22
    },
    "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 56m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 87 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b19m"
            },
            "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 NO.7 HAEGU) maintained close proximity (min 40m, avg 56m) for 87 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: 1h 42m
  • Data Points: 14 AIS positions
  • Period: 2026-07-29T09:02:52+00:00 to 2026-07-29T10:44:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 102,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-07-29T09:02:52+00:00",
        "lat": 35.0129333000000002584783942438662052154541015625,
        "lon": 129.050566699999990305514074862003326416015625
    },
    "last_point": {
        "ts": "2026-07-29T10:44:52+00:00",
        "lat": 35.02398329999999759820639155805110931396484375,
        "lon": 129.041699999999991632648743689060211181640625
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 29, 2026 09:02 UTC 75.0% ▼
  • Duration: 1h 38m
  • Radius: 636 meters
  • Data Points: 13 AIS positions
  • Centroid: 35.0097, 129.0457
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 636.200000000000045474735088646411895751953125,
    "duration_minutes": 98.2999999999999971578290569595992565155029296875,
    "points": 13,
    "centroid": {
        "lat": 35.0097038384615331096938461996614933013916015625,
        "lon": 129.0457487230769402231089770793914794921875
    },
    "bbox": {
        "min_lat": 35.00821669999999841138560441322624683380126953125,
        "min_lon": 129.043333300000000463114702142775058746337890625,
        "max_lat": 35.0150833000000005768015398643910884857177734375,
        "max_lon": 129.050566699999990305514074862003326416015625
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 29, 2026 08:39 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 2h 5m
  • Data Points: 18 AIS positions
  • Period: 2026-07-29T08:39:10+00:00 to 2026-07-29T10:44:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 125.7000000000000028421709430404007434844970703125,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-07-29T08:39:10+00:00",
        "lat": 35.0186666999999971494617057032883167266845703125,
        "lon": 129.05203330000000505606294609606266021728515625
    },
    "last_point": {
        "ts": "2026-07-29T10:44:52+00:00",
        "lat": 35.02398329999999759820639155805110931396484375,
        "lon": 129.041699999999991632648743689060211181640625
    }
}
Methodology: 2026.01.18
Loiter Strait of Gibraltar Surveillance Zone
Jul 29, 2026 08:39 UTC 75.0% ▼
  • Duration: 2h 2m
  • Radius: 908 meters
  • Data Points: 17 AIS positions
  • Centroid: 35.0115, 129.0472
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 907.8999999999999772626324556767940521240234375,
    "duration_minutes": 122,
    "points": 17,
    "centroid": {
        "lat": 35.0115176470588238544223713688552379608154296875,
        "lon": 129.047193135294122612322098575532436370849609375
    },
    "bbox": {
        "min_lat": 35.00821669999999841138560441322624683380126953125,
        "min_lon": 129.043333300000000463114702142775058746337890625,
        "max_lat": 35.0186666999999971494617057032883167266845703125,
        "max_lon": 129.052199999999999135980033315718173980712890625
    },
    "zone_id": "discovered_001"
}
Methodology: 2026.01.18
Zone Dwell Strait of Gibraltar Surveillance Zone
Jul 25, 2026 15:13 UTC 80.0% ▼
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 3h 45m
  • Data Points: 5 AIS positions
  • Period: 2026-07-25T15:13:53+00:00 to 2026-07-25T18:59:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 225.80000000000001136868377216160297393798828125,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-07-25T15:13:53+00:00",
        "lat": 35.0300833000000011452357284724712371826171875,
        "lon": 129.0511999999999943611328490078449249267578125
    },
    "last_point": {
        "ts": "2026-07-25T18:59:41+00:00",
        "lat": 35.02255000000000251247911364771425724029541015625,
        "lon": 129.043216699999987895353115163743495941162109375
    }
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Jul 29 10:44 35.0240 129.0417 8.5 kn 354.9° Strait of Gibraltar Surveillance Zone
Jul 29 10:41 35.0151 129.0433 8.8 kn 353.5° Strait of Gibraltar Surveillance Zone
Jul 29 10:38 35.0090 129.0451 3.8 kn 278.2° Strait of Gibraltar Surveillance Zone
Jul 29 10:33 35.0088 129.0456 0.1 kn 326.7° Strait of Gibraltar Surveillance Zone
Jul 29 10:17 35.0084 129.0454 0.0 kn 40.3° Strait of Gibraltar Surveillance Zone
Jul 29 10:02 35.0083 129.0453 0.1 kn 68.5° Strait of Gibraltar Surveillance Zone
Jul 29 09:59 35.0083 129.0452 0.0 kn 58.1° Strait of Gibraltar Surveillance Zone
Jul 29 09:46 35.0082 129.0451 0.4 kn 40.4° Strait of Gibraltar Surveillance Zone
Jul 29 09:42 35.0082 129.0451 0.2 kn 153.8° Strait of Gibraltar Surveillance Zone
Jul 29 09:30 35.0086 129.0448 0.0 kn 125.3° Strait of Gibraltar Surveillance Zone
Jul 29 09:27 35.0087 129.0447 0.2 kn 148.0° Strait of Gibraltar Surveillance Zone
Jul 29 09:20 35.0090 129.0446 0.1 kn 241.2° Strait of Gibraltar Surveillance Zone
Jul 29 09:07 35.0127 129.0499 0.5 kn 307.3° Strait of Gibraltar Surveillance Zone
Jul 29 09:02 35.0129 129.0506 1.0 kn 206.0° Strait of Gibraltar Surveillance Zone
Jul 29 08:59 35.0149 129.0513 4.0 kn 196.6° Strait of Gibraltar Surveillance Zone
Jul 29 08:57 35.0176 129.0520 5.9 kn 189.3° Strait of Gibraltar Surveillance Zone
Jul 29 08:41 35.0185 129.0522 0.3 kn 100.5° Strait of Gibraltar Surveillance Zone
Jul 29 08:39 35.0187 129.0520 0.5 kn 165.2° Strait of Gibraltar Surveillance Zone

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.