TM HAI HA 568

IMO 9274082

Vessel information

Vessel Name TM HAI HA 568 View name history 📜
IMO Number 9274082
MMSI 574004200
Vessel Type Chemical/ Products Tanker| Transporteur de produits chimiques
Flag 🇻🇳 Vietnam View flag history 📜

Sanctioned by

Management & Operations

ISM Manager
HA TRANG PETROL TRANSPORTATION
75, Lane 119, Giap Bat Street, Giap Bat Ward, Hanoi City, Vietnam.
Commercial Manager
HA TRANG PETROL TRANSPORTATION

Classification & Safety

Current Classification
Russian Maritime Register of Shipping Delivered

Port State Control (PSC) Inspections

⚠️
Risk Level
MEDIUM
Last 36 Months
9
Inspections
1
Detentions
Last Inspection
📍 Aliaga
📅 2026-06-30

Programs & Notes

EU Russia Sanctions – Shadow Fleet | SEMA (Canada) — vessel designations | The Russia (Sanctions) (EU Exit) Regulations 2019

AIS Events

50 events detected • 3 zones • Last: Sep 2, 2026

Zone Dwell Central Atlantic Surveillance Zone Sep 2, 2026 23:07 UTC 80.0%
  • Zone: Central Atlantic Surveillance Zone
  • Duration: 3h 26m
  • Data Points: 18 AIS positions
  • Period: 2026-09-02T23:07:11+00:00 to 2026-09-03T02:33:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_014",
    "zone_name": "Central Atlantic Surveillance Zone",
    "dwell_minutes": 206.5,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-09-02T23:07:11+00:00",
        "lat": 37.066513299999996888800524175167083740234375,
        "lon": 10.6470132999999993472783899051137268543243408203125
    },
    "last_point": {
        "ts": "2026-09-03T02:33:41+00:00",
        "lat": 37.17289329999999836218194104731082916259765625,
        "lon": 11.3058032999999991119466358213685452938079833984375
    }
}

Methodology: 2026.01.18

Zone Dwell discovered_023 Aug 27, 2026 14:09 UTC 80.0%
  • Zone: discovered_023
  • Duration: 2h 32m
  • Data Points: 13 AIS positions
  • Period: 2026-08-27T14:09:20+00:00 to 2026-08-27T16:41:50+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 152.5,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-08-27T14:09:20+00:00",
        "lat": 32.019243299999999408100848086178302764892578125,
        "lon": 31.115173299999998590692484867759048938751220703125
    },
    "last_point": {
        "ts": "2026-08-27T16:41:50+00:00",
        "lat": 32.1299666999999971039869706146419048309326171875,
        "lon": 30.57205330000000031986928661353886127471923828125
    }
}

Methodology: 2026.01.18

Zone Dwell discovered_023 Aug 27, 2026 13:10 UTC 80.0%
  • Zone: discovered_023
  • Duration: 3h 31m
  • Data Points: 23 AIS positions
  • Period: 2026-08-27T13:10:31+00:00 to 2026-08-27T16:41:50+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 211.30000000000001136868377216160297393798828125,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-08-27T13:10:31+00:00",
        "lat": 31.96694000000000102090780274011194705963134765625,
        "lon": 31.32291000000000025238477974198758602142333984375
    },
    "last_point": {
        "ts": "2026-08-27T16:41:50+00:00",
        "lat": 32.1299666999999971039869706146419048309326171875,
        "lon": 30.57205330000000031986928661353886127471923828125
    }
}

Methodology: 2026.01.18

Zone Dwell discovered_023 Aug 27, 2026 12:29 UTC 80.0%
  • Zone: discovered_023
  • Duration: 4h 12m
  • Data Points: 32 AIS positions
  • Period: 2026-08-27T12:29:08+00:00 to 2026-08-27T16:41:50+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 252.69999999999998863131622783839702606201171875,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-08-27T12:29:08+00:00",
        "lat": 31.930806700000001541184246889315545558929443359375,
        "lon": 31.4689300000000002910383045673370361328125
    },
    "last_point": {
        "ts": "2026-08-27T16:41:50+00:00",
        "lat": 32.1299666999999971039869706146419048309326171875,
        "lon": 30.57205330000000031986928661353886127471923828125
    }
}

Methodology: 2026.01.18

Zone Dwell discovered_023 Aug 27, 2026 11:00 UTC 80.0%
  • Zone: discovered_023
  • Duration: 5h 41m
  • Data Points: 45 AIS positions
  • Period: 2026-08-27T11:00:30+00:00 to 2026-08-27T16:41:50+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 341.30000000000001136868377216160297393798828125,
    "points_in_zone": 45,
    "first_point": {
        "ts": "2026-08-27T11:00:30+00:00",
        "lat": 31.85466999999999870851752348244190216064453125,
        "lon": 31.779006700000000051886672736145555973052978515625
    },
    "last_point": {
        "ts": "2026-08-27T16:41:50+00:00",
        "lat": 32.1299666999999971039869706146419048309326171875,
        "lon": 30.57205330000000031986928661353886127471923828125
    }
}

Methodology: 2026.01.18

Zone Dwell discovered_023 Aug 27, 2026 10:05 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 31m
  • Data Points: 54 AIS positions
  • Period: 2026-08-27T10:10:30+00:00 to 2026-08-27T16:41:50+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 391.30000000000001136868377216160297393798828125,
    "points_in_zone": 54,
    "first_point": {
        "ts": "2026-08-27T10:10:30+00:00",
        "lat": 31.782593299999998492921804427169263362884521484375,
        "lon": 31.93998330000000152040229295380413532257080078125
    },
    "last_point": {
        "ts": "2026-08-27T16:41:50+00:00",
        "lat": 32.1299666999999971039869706146419048309326171875,
        "lon": 30.57205330000000031986928661353886127471923828125
    }
}

Methodology: 2026.01.18

Zone Dwell discovered_023 Aug 27, 2026 09:00 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 29m
  • Data Points: 52 AIS positions
  • Period: 2026-08-27T09:55:09+00:00 to 2026-08-27T16:24:50+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 389.69999999999998863131622783839702606201171875,
    "points_in_zone": 52,
    "first_point": {
        "ts": "2026-08-27T09:55:09+00:00",
        "lat": 31.74647999999999825604390935041010379791259765625,
        "lon": 31.980553300000000405134414904750883579254150390625
    },
    "last_point": {
        "ts": "2026-08-27T16:24:50+00:00",
        "lat": 32.11676330000000234576873481273651123046875,
        "lon": 30.634016700000000099635144579224288463592529296875
    }
}

Methodology: 2026.01.18

Zone Dwell discovered_023 Aug 27, 2026 08:18 UTC 80.0%
  • Zone: discovered_023
  • Duration: 6h 30m
  • Data Points: 60 AIS positions
  • Period: 2026-08-27T08:18:41+00:00 to 2026-08-27T14:49:09+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_023",
    "zone_name": "Eastern Mediterranean Monitoring Zone",
    "dwell_minutes": 390.5,
    "points_in_zone": 60,
    "first_point": {
        "ts": "2026-08-27T08:18:41+00:00",
        "lat": 31.531446700000000049612935981713235378265380859375,
        "lon": 32.23717330000000202971932594664394855499267578125
    },
    "last_point": {
        "ts": "2026-08-27T14:49:09+00:00",
        "lat": 32.04639999999999844249032321386039257049560546875,
        "lon": 30.97243329999999872370608500204980373382568359375
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 27, 2026 06:19 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 1h 38m
  • Data Points: 13 AIS positions
  • Period: 2026-08-27T06:19:00+00:00 to 2026-08-27T07:57:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 98.7000000000000028421709430404007434844970703125,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-08-27T06:19:00+00:00",
        "lat": 31.522400000000001085709300241433084011077880859375,
        "lon": 32.38831330000000008340066415257751941680908203125
    },
    "last_point": {
        "ts": "2026-08-27T07:57:40+00:00",
        "lat": 31.530056699999999381134330178610980510711669921875,
        "lon": 32.306483299999996461338014341890811920166015625
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 27, 2026 05:14 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 2h 43m
  • Data Points: 14 AIS positions
  • Period: 2026-08-27T05:14:13+00:00 to 2026-08-27T07:57:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 163.400000000000005684341886080801486968994140625,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-08-27T05:14:13+00:00",
        "lat": 31.51189000000000106638253782875835895538330078125,
        "lon": 32.3980999999999994543031789362430572509765625
    },
    "last_point": {
        "ts": "2026-08-27T07:57:40+00:00",
        "lat": 31.530056699999999381134330178610980510711669921875,
        "lon": 32.306483299999996461338014341890811920166015625
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 27, 2026 02:02 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 5h 55m
  • Data Points: 15 AIS positions
  • Period: 2026-08-27T02:02:12+00:00 to 2026-08-27T07:57:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 355.5,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-08-27T02:02:12+00:00",
        "lat": 31.5117766999999986410330166108906269073486328125,
        "lon": 32.39809000000000338559402734972536563873291015625
    },
    "last_point": {
        "ts": "2026-08-27T07:57:40+00:00",
        "lat": 31.530056699999999381134330178610980510711669921875,
        "lon": 32.306483299999996461338014341890811920166015625
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 27, 2026 01:08 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 28m
  • Data Points: 14 AIS positions
  • Period: 2026-08-27T01:14:12+00:00 to 2026-08-27T07:42:10+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 388,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-08-27T01:14:12+00:00",
        "lat": 31.51180000000000092086338554508984088897705078125,
        "lon": 32.39806329999999690016920794732868671417236328125
    },
    "last_point": {
        "ts": "2026-08-27T07:42:10+00:00",
        "lat": 31.5312100000000015143086784519255161285400390625,
        "lon": 32.35378670000000056461431086063385009765625
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 23:26 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 5h 48m
  • Data Points: 5 AIS positions
  • Period: 2026-08-26T23:26:05+00:00 to 2026-08-27T05:14:13+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 348.1000000000000227373675443232059478759765625,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-08-26T23:26:05+00:00",
        "lat": 31.511466699999999718784238211810588836669921875,
        "lon": 32.3979767000000009602445061318576335906982421875
    },
    "last_point": {
        "ts": "2026-08-27T05:14:13+00:00",
        "lat": 31.51189000000000106638253782875835895538330078125,
        "lon": 32.3980999999999994543031789362430572509765625
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 22:08 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 3h 53m
  • Data Points: 5 AIS positions
  • Period: 2026-08-26T22:08:16+00:00 to 2026-08-27T02:02:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 233.900000000000005684341886080801486968994140625,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-08-26T22:08:16+00:00",
        "lat": 31.51076330000000069730958784930408000946044921875,
        "lon": 32.39754330000000237532731262035667896270751953125
    },
    "last_point": {
        "ts": "2026-08-27T02:02:12+00:00",
        "lat": 31.5117766999999986410330166108906269073486328125,
        "lon": 32.39809000000000338559402734972536563873291015625
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Malacca Strait Surveillance Zone Aug 26, 2026 22:08 UTC 95/100
Vessel A: TM HAI HA 568 (TM HAI HA 568) VIETNAM
Vessel B: Garuda (GARUDA) SIERRA LEONE
  • Minimum Distance: 47 meters
  • Average Distance: 53 meters
  • Duration: 3h 53m
  • Period: 2026-08-26T22:08:16+00:00 to 2026-08-27T02:02:12+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Malacca Strait Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (TM HAI HA 568 and GARUDA) maintained close proximity (min 47m, avg 53m) for 234 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 Malacca Strait Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 47m, avg 53m
Duration25/25Duration 234 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Malacca Strait Surveillance Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-27T04:15:02.164229+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 574004200,
        "imo": 9274082,
        "name": "TM HAI HA 568",
        "flag": "VIETNAM"
    },
    "vessel_b": {
        "mmsi": 667001584,
        "imo": 9272931,
        "name": "GARUDA",
        "flag": "SIERRA LEONE"
    },
    "min_distance_m": 47.2999999999999971578290569595992565155029296875,
    "avg_distance_m": 53.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 3.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 233.900000000000005684341886080801486968994140625,
    "overlap_duration_s": 14036,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-26T22:08:16+00:00",
        "end": "2026-08-27T02:02:12+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 47m, avg 53m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 234 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: Malacca Strait Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (TM HAI HA 568 and GARUDA) maintained close proximity (min 47m, avg 53m) for 234 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 Malacca Strait Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.51132199999999983219822752289474010467529296875,
            "lon": 32.39782430000000346126398653723299503326416015625
        },
        "time_window": {
            "start_ts": "2026-08-26T22:08:16+00:00",
            "end_ts": "2026-08-27T02:02:12+00:00"
        },
        "searched_at": "2026-08-27T04:15:02.164229+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 21:26 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 4h 35m
  • Data Points: 8 AIS positions
  • Period: 2026-08-26T21:26:18+00:00 to 2026-08-27T02:02:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 275.8999999999999772626324556767940521240234375,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-08-26T21:26:18+00:00",
        "lat": 31.5107832999999999401552486233413219451904296875,
        "lon": 32.39750670000000098980308393947780132293701171875
    },
    "last_point": {
        "ts": "2026-08-27T02:02:12+00:00",
        "lat": 31.5117766999999986410330166108906269073486328125,
        "lon": 32.39809000000000338559402734972536563873291015625
    }
}

Methodology: 2026.01.18

Sts Malacca Strait Surveillance Zone Aug 26, 2026 21:18 UTC 80/100
Vessel A: Garuda (GARUDA) SIERRA LEONE
Vessel B: TM HAI HA 568 (TM HAI HA 568) VIETNAM
  • Minimum Distance: 47 meters
  • Average Distance: 54 meters
  • Duration: 53 minutes
  • Period: 2026-08-26T21:18:00+00:00 to 2026-08-26T22:11:07+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Malacca Strait Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (GARUDA and TM HAI HA 568) maintained close proximity (min 47m, avg 54m) for 53 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 Malacca Strait Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 47m, avg 54m
Duration10/25Duration 53 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 667001584,
        "imo": 9272931,
        "name": "GARUDA",
        "flag": "SIERRA LEONE"
    },
    "vessel_b": {
        "mmsi": 574004200,
        "imo": 9274082,
        "name": "TM HAI HA 568",
        "flag": "VIETNAM"
    },
    "min_distance_m": 47.2999999999999971578290569595992565155029296875,
    "avg_distance_m": 54.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 4.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 53.10000000000000142108547152020037174224853515625,
    "overlap_duration_s": 3187,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-26T21:18:00+00:00",
        "end": "2026-08-26T22:11:07+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 47m, avg 54m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 53 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: Malacca Strait Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GARUDA and TM HAI HA 568) maintained close proximity (min 47m, avg 54m) for 53 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 Malacca Strait Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 20:38 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 5h 24m
  • Data Points: 9 AIS positions
  • Period: 2026-08-26T20:38:08+00:00 to 2026-08-27T02:02:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 324.1000000000000227373675443232059478759765625,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-08-26T20:38:08+00:00",
        "lat": 31.510733299999998280327417887747287750244140625,
        "lon": 32.3974232999999998128259903751313686370849609375
    },
    "last_point": {
        "ts": "2026-08-27T02:02:12+00:00",
        "lat": 31.5117766999999986410330166108906269073486328125,
        "lon": 32.39809000000000338559402734972536563873291015625
    }
}

Methodology: 2026.01.18

Loiter Malacca Strait Surveillance Zone Aug 26, 2026 19:09 UTC 75.0%
  • Duration: 6h 4m
  • Radius: 97 meters
  • Data Points: 10 AIS positions
  • Centroid: 31.5110, 32.3977
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 96.5,
    "duration_minutes": 364.8999999999999772626324556767940521240234375,
    "points": 10,
    "centroid": {
        "lat": 31.51103067000000379493940272368490695953369140625,
        "lon": 32.39765632999999667163137928582727909088134765625
    },
    "bbox": {
        "min_lat": 31.510656699999998409111867658793926239013671875,
        "min_lon": 32.3974232999999998128259903751313686370849609375,
        "max_lat": 31.51182000000000016370904631912708282470703125,
        "max_lon": 32.39808330000000324844222632236778736114501953125
    },
    "zone_id": "discovered_160"
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 19:09 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 4m
  • Data Points: 10 AIS positions
  • Period: 2026-08-26T19:09:20+00:00 to 2026-08-27T01:14:12+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 364.8999999999999772626324556767940521240234375,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-08-26T19:09:20+00:00",
        "lat": 31.51072669999999931178535916842520236968994140625,
        "lon": 32.39750670000000098980308393947780132293701171875
    },
    "last_point": {
        "ts": "2026-08-27T01:14:12+00:00",
        "lat": 31.51180000000000092086338554508984088897705078125,
        "lon": 32.39806329999999690016920794732868671417236328125
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Malacca Strait Surveillance Zone Aug 26, 2026 19:01 UTC 75/100
Vessel A: Garuda (GARUDA) SIERRA LEONE
Vessel B: TM HAI HA 568 (TM HAI HA 568) VIETNAM
  • Minimum Distance: 50 meters
  • Average Distance: 54 meters
  • Duration: 34 minutes
  • Period: 2026-08-26T19:01:59+00:00 to 2026-08-26T19:36:12+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Malacca Strait Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GARUDA and TM HAI HA 568) maintained close proximity (min 50m, avg 54m) for 34 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 Malacca Strait Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 50m, avg 54m
Duration5/25Duration 34 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Malacca Strait Surveillance Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-26T20:45:10.491967+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 667001584,
        "imo": 9272931,
        "name": "GARUDA",
        "flag": "SIERRA LEONE"
    },
    "vessel_b": {
        "mmsi": 574004200,
        "imo": 9274082,
        "name": "TM HAI HA 568",
        "flag": "VIETNAM"
    },
    "min_distance_m": 49.5,
    "avg_distance_m": 53.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 3,
    "duration_minutes": 34.2000000000000028421709430404007434844970703125,
    "overlap_duration_s": 2053,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-26T19:01:59+00:00",
        "end": "2026-08-26T19:36:12+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 50m, avg 54m"
            },
            "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 \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Malacca Strait Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GARUDA and TM HAI HA 568) maintained close proximity (min 50m, avg 54m) for 34 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 Malacca Strait Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.51058739999999858127921470440924167633056640625,
            "lon": 32.397232999999999947249307297170162200927734375
        },
        "time_window": {
            "start_ts": "2026-08-26T19:01:59+00:00",
            "end_ts": "2026-08-26T19:36:12+00:00"
        },
        "searched_at": "2026-08-26T20:45:10.491967+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 16:39 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 29m
  • Data Points: 9 AIS positions
  • Period: 2026-08-26T16:57:07+00:00 to 2026-08-26T23:26:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 389,
    "points_in_zone": 9,
    "first_point": {
        "ts": "2026-08-26T16:57:07+00:00",
        "lat": 31.51076330000000069730958784930408000946044921875,
        "lon": 32.39766329999999783240127726458013057708740234375
    },
    "last_point": {
        "ts": "2026-08-26T23:26:05+00:00",
        "lat": 31.511466699999999718784238211810588836669921875,
        "lon": 32.3979767000000009602445061318576335906982421875
    }
}

Methodology: 2026.01.18

Loiter Malacca Strait Surveillance Zone Aug 26, 2026 15:09 UTC 75.0%
  • Duration: 6h 29m
  • Radius: 13 meters
  • Data Points: 11 AIS positions
  • Centroid: 31.5107, 32.3975
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 13.300000000000000710542735760100185871124267578125,
    "duration_minutes": 389,
    "points": 11,
    "centroid": {
        "lat": 31.510735454545450551222529611550271511077880859375,
        "lon": 32.39752666363636279811544227413833141326904296875
    },
    "bbox": {
        "min_lat": 31.510656699999998409111867658793926239013671875,
        "min_lon": 32.3974232999999998128259903751313686370849609375,
        "max_lat": 31.5107900000000000773070496506989002227783203125,
        "max_lon": 32.39766329999999783240127726458013057708740234375
    },
    "zone_id": "discovered_160"
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 15:09 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 29m
  • Data Points: 11 AIS positions
  • Period: 2026-08-26T15:39:17+00:00 to 2026-08-26T22:08:16+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 389,
    "points_in_zone": 11,
    "first_point": {
        "ts": "2026-08-26T15:39:17+00:00",
        "lat": 31.510696700000000447516868007369339466094970703125,
        "lon": 32.39759670000000113532223622314631938934326171875
    },
    "last_point": {
        "ts": "2026-08-26T22:08:16+00:00",
        "lat": 31.51076330000000069730958784930408000946044921875,
        "lon": 32.39754330000000237532731262035667896270751953125
    }
}

Methodology: 2026.01.18

Sts Malacca Strait Surveillance Zone Aug 26, 2026 15:09 UTC 95/100
Vessel A: TM HAI HA 568 (TM HAI HA 568) VIETNAM
Vessel B: Garuda (GARUDA) SIERRA LEONE
  • Minimum Distance: 42 meters
  • Average Distance: 49 meters
  • Duration: 4h 58m
  • Period: 2026-08-26T15:39:17+00:00 to 2026-08-26T20:38:08+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Malacca Strait Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (TM HAI HA 568 and GARUDA) maintained close proximity (min 42m, avg 49m) for 299 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 Malacca Strait Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 42m, avg 49m
Duration25/25Duration 299 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±6m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 574004200,
        "imo": 9274082,
        "name": "TM HAI HA 568",
        "flag": "VIETNAM"
    },
    "vessel_b": {
        "mmsi": 667001584,
        "imo": 9272931,
        "name": "GARUDA",
        "flag": "SIERRA LEONE"
    },
    "min_distance_m": 41.60000000000000142108547152020037174224853515625,
    "avg_distance_m": 49.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 5.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 298.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 17931,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-08-26T15:39:17+00:00",
        "end": "2026-08-26T20:38:08+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 42m, avg 49m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 299 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: Malacca Strait Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (TM HAI HA 568 and GARUDA) maintained close proximity (min 42m, avg 49m) for 299 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 Malacca Strait Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Malacca Strait Surveillance Zone Aug 26, 2026 14:27 UTC 75.0%
  • Duration: 6h 11m
  • Radius: 16 meters
  • Data Points: 10 AIS positions
  • Centroid: 31.5108, 32.3976
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 16.39999999999999857891452847979962825775146484375,
    "duration_minutes": 371.1000000000000227373675443232059478759765625,
    "points": 10,
    "centroid": {
        "lat": 31.5107536799999934373772703111171722412109375,
        "lon": 32.3975886599999967074836604297161102294921875
    },
    "bbox": {
        "min_lat": 31.510656699999998409111867658793926239013671875,
        "min_lon": 32.3974232999999998128259903751313686370849609375,
        "max_lat": 31.51086670000000111713234218768775463104248046875,
        "max_lon": 32.39771329999999949222910800017416477203369140625
    },
    "zone_id": "discovered_160"
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 14:27 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 11m
  • Data Points: 10 AIS positions
  • Period: 2026-08-26T14:27:03+00:00 to 2026-08-26T20:38:08+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 371.1000000000000227373675443232059478759765625,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-08-26T14:27:03+00:00",
        "lat": 31.51086670000000111713234218768775463104248046875,
        "lon": 32.3977000000000003865352482534945011138916015625
    },
    "last_point": {
        "ts": "2026-08-26T20:38:08+00:00",
        "lat": 31.510733299999998280327417887747287750244140625,
        "lon": 32.3974232999999998128259903751313686370849609375
    }
}

Methodology: 2026.01.18

Loiter Malacca Strait Surveillance Zone Aug 26, 2026 12:18 UTC 75.0%
  • Duration: 6h 36m
  • Radius: 35 meters
  • Data Points: 10 AIS positions
  • Centroid: 31.5108, 32.3976
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 34.89999999999999857891452847979962825775146484375,
    "duration_minutes": 396,
    "points": 10,
    "centroid": {
        "lat": 31.51078035000000454601831734180450439453125,
        "lon": 32.3976363299999974287857185117900371551513671875
    },
    "bbox": {
        "min_lat": 31.510656699999998409111867658793926239013671875,
        "min_lon": 32.397476699999998572820913977921009063720703125,
        "max_lat": 31.510999999999999232613845379091799259185791015625,
        "max_lon": 32.39789999999999992041921359486877918243408203125
    },
    "zone_id": "discovered_160"
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 12:18 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 36m
  • Data Points: 10 AIS positions
  • Period: 2026-08-26T12:51:18+00:00 to 2026-08-26T19:27:19+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-08-26T12:51:18+00:00",
        "lat": 31.510999999999999232613845379091799259185791015625,
        "lon": 32.39789999999999992041921359486877918243408203125
    },
    "last_point": {
        "ts": "2026-08-26T19:27:19+00:00",
        "lat": 31.510656699999998409111867658793926239013671875,
        "lon": 32.397476699999998572820913977921009063720703125
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Malacca Strait Surveillance Zone Aug 26, 2026 12:18 UTC 95/100
Vessel A: TM HAI HA 568 (TM HAI HA 568) VIETNAM
Vessel B: Garuda (GARUDA) SIERRA LEONE
  • Minimum Distance: 36 meters
  • Average Distance: 50 meters
  • Duration: 2h 9m
  • Period: 2026-08-26T12:18:04+00:00 to 2026-08-26T14:27:03+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Malacca Strait Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (TM HAI HA 568 and GARUDA) maintained close proximity (min 36m, avg 50m) for 129 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 Malacca Strait Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 36m, avg 50m
Duration25/25Duration 129 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±10m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Malacca Strait Surveillance Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-26T16:45:13.040250+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 574004200,
        "imo": 9274082,
        "name": "TM HAI HA 568",
        "flag": "VIETNAM"
    },
    "vessel_b": {
        "mmsi": 667001584,
        "imo": 9272931,
        "name": "GARUDA",
        "flag": "SIERRA LEONE"
    },
    "min_distance_m": 35.7000000000000028421709430404007434844970703125,
    "avg_distance_m": 49.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 9.800000000000000710542735760100185871124267578125,
    "duration_minutes": 129,
    "overlap_duration_s": 7739,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-08-26T12:18:04+00:00",
        "end": "2026-08-26T14:27:03+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 36m, avg 50m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 129 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: Malacca Strait Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (TM HAI HA 568 and GARUDA) maintained close proximity (min 36m, avg 50m) for 129 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 Malacca Strait Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.510868800000000788941179052926599979400634765625,
            "lon": 32.39768649999999894362190389074385166168212890625
        },
        "time_window": {
            "start_ts": "2026-08-26T12:18:04+00:00",
            "end_ts": "2026-08-26T14:27:03+00:00"
        },
        "searched_at": "2026-08-26T16:45:13.040250+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Malacca Strait Surveillance Zone Aug 26, 2026 11:12 UTC 75.0%
  • Duration: 5h 44m
  • Radius: 40 meters
  • Data Points: 14 AIS positions
  • Centroid: 31.5110, 32.3978
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 40.2999999999999971578290569595992565155029296875,
    "duration_minutes": 344.80000000000001136868377216160297393798828125,
    "points": 14,
    "centroid": {
        "lat": 31.510966200000002146452970919199287891387939453125,
        "lon": 32.397815228571431589443818666040897369384765625
    },
    "bbox": {
        "min_lat": 31.5106932999999997946360963396728038787841796875,
        "min_lon": 32.3975300000000032696334528736770153045654296875,
        "max_lat": 31.511289999999998912016963004134595394134521484375,
        "max_lon": 32.39802670000000262007233686745166778564453125
    },
    "zone_id": "discovered_160"
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 11:12 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 5h 44m
  • Data Points: 14 AIS positions
  • Period: 2026-08-26T11:12:20+00:00 to 2026-08-26T16:57:07+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 344.80000000000001136868377216160297393798828125,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-08-26T11:12:20+00:00",
        "lat": 31.511289999999998912016963004134595394134521484375,
        "lon": 32.39799330000000310292307403869926929473876953125
    },
    "last_point": {
        "ts": "2026-08-26T16:57:07+00:00",
        "lat": 31.51076330000000069730958784930408000946044921875,
        "lon": 32.39766329999999783240127726458013057708740234375
    }
}

Methodology: 2026.01.18

Sts Malacca Strait Surveillance Zone Aug 26, 2026 11:04 UTC 90/100
Vessel A: Garuda (GARUDA) SIERRA LEONE
Vessel B: TM HAI HA 568 (TM HAI HA 568) VIETNAM
  • Minimum Distance: 51 meters
  • Average Distance: 55 meters
  • Duration: 1h 37m
  • Period: 2026-08-26T11:04:04+00:00 to 2026-08-26T12:41:19+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Malacca Strait Surveillance Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (GARUDA and TM HAI HA 568) maintained close proximity (min 51m, avg 55m) for 97 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 Malacca Strait Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 51m, avg 55m
Duration20/25Duration 97 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 667001584,
        "imo": 9272931,
        "name": "GARUDA",
        "flag": "SIERRA LEONE"
    },
    "vessel_b": {
        "mmsi": 574004200,
        "imo": 9274082,
        "name": "TM HAI HA 568",
        "flag": "VIETNAM"
    },
    "min_distance_m": 51.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 54.60000000000000142108547152020037174224853515625,
    "distance_consistency_m": 4.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 97.2000000000000028421709430404007434844970703125,
    "overlap_duration_s": 5835,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-26T11:04:04+00:00",
        "end": "2026-08-26T12:41:19+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 51m, avg 55m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 97 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: Malacca Strait Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GARUDA and TM HAI HA 568) maintained close proximity (min 51m, avg 55m) for 97 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 Malacca Strait Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Malacca Strait Surveillance Zone Aug 26, 2026 10:30 UTC 75/100
Vessel A: TM HAI HA 568 (TM HAI HA 568) VIETNAM
Vessel B: Garuda (GARUDA) SIERRA LEONE
  • Minimum Distance: 53 meters
  • Average Distance: 55 meters
  • Duration: 42 minutes
  • Period: 2026-08-26T10:30:14+00:00 to 2026-08-26T11:12:20+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Malacca Strait Surveillance Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (TM HAI HA 568 and GARUDA) maintained close proximity (min 53m, avg 55m) for 42 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 Malacca Strait Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 53m, avg 55m
Duration5/25Duration 42 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Malacca Strait Surveillance Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-26T12:15:08.247177+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 574004200,
        "imo": 9274082,
        "name": "TM HAI HA 568",
        "flag": "VIETNAM"
    },
    "vessel_b": {
        "mmsi": 667001584,
        "imo": 9272931,
        "name": "GARUDA",
        "flag": "SIERRA LEONE"
    },
    "min_distance_m": 53.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 55.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 3,
    "duration_minutes": 42.10000000000000142108547152020037174224853515625,
    "overlap_duration_s": 2526,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.1000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-08-26T10:30:14+00:00",
        "end": "2026-08-26T11:12:20+00:00"
    },
    "points_count": {
        "vessel_a": 2,
        "vessel_b": 2
    },
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 53m, avg 55m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 42 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: Malacca Strait Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (TM HAI HA 568 and GARUDA) maintained close proximity (min 53m, avg 55m) for 42 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 Malacca Strait Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.51117169999999845231286599300801753997802734375,
            "lon": 32.3978321000000022422682377509772777557373046875
        },
        "time_window": {
            "start_ts": "2026-08-26T10:30:14+00:00",
            "end_ts": "2026-08-26T11:12:20+00:00"
        },
        "searched_at": "2026-08-26T12:15:08.247177+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Malacca Strait Surveillance Zone Aug 26, 2026 10:24 UTC 75.0%
  • Duration: 6h 32m
  • Radius: 51 meters
  • Data Points: 16 AIS positions
  • Centroid: 31.5110, 32.3978
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 51.2000000000000028421709430404007434844970703125,
    "duration_minutes": 392.8999999999999772626324556767940521240234375,
    "points": 16,
    "centroid": {
        "lat": 31.5110254249999997000486473552882671356201171875,
        "lon": 32.3978447875000057365468819625675678253173828125
    },
    "bbox": {
        "min_lat": 31.5106932999999997946360963396728038787841796875,
        "min_lon": 32.3975300000000032696334528736770153045654296875,
        "max_lat": 31.511453299999999444480636157095432281494140625,
        "max_lon": 32.3980566999999979316271492280066013336181640625
    },
    "zone_id": "discovered_160"
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 10:24 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 32m
  • Data Points: 16 AIS positions
  • Period: 2026-08-26T10:24:13+00:00 to 2026-08-26T16:57:07+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 392.8999999999999772626324556767940521240234375,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-08-26T10:24:13+00:00",
        "lat": 31.511453299999999444480636157095432281494140625,
        "lon": 32.39804670000000186291799764148890972137451171875
    },
    "last_point": {
        "ts": "2026-08-26T16:57:07+00:00",
        "lat": 31.51076330000000069730958784930408000946044921875,
        "lon": 32.39766329999999783240127726458013057708740234375
    }
}

Methodology: 2026.01.18

Loiter Malacca Strait Surveillance Zone Aug 26, 2026 09:45 UTC 75.0%
  • Duration: 6h 11m
  • Radius: 56 meters
  • Data Points: 16 AIS positions
  • Centroid: 31.5111, 32.3979
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 56.2000000000000028421709430404007434844970703125,
    "duration_minutes": 371.8999999999999772626324556767940521240234375,
    "points": 16,
    "centroid": {
        "lat": 31.511115012500003018658389919437468051910400390625,
        "lon": 32.39789646250000032523530535399913787841796875
    },
    "bbox": {
        "min_lat": 31.510696700000000447516868007369339466094970703125,
        "min_lon": 32.3975300000000032696334528736770153045654296875,
        "max_lat": 31.511453299999999444480636157095432281494140625,
        "max_lon": 32.3980566999999979316271492280066013336181640625
    },
    "zone_id": "discovered_160"
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 09:45 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 11m
  • Data Points: 16 AIS positions
  • Period: 2026-08-26T09:45:18+00:00 to 2026-08-26T15:57:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 371.8999999999999772626324556767940521240234375,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-08-26T09:45:18+00:00",
        "lat": 31.511453299999999444480636157095432281494140625,
        "lon": 32.39802670000000262007233686745166778564453125
    },
    "last_point": {
        "ts": "2026-08-26T15:57:11+00:00",
        "lat": 31.510716699999999690362528781406581401824951171875,
        "lon": 32.3975300000000032696334528736770153045654296875
    }
}

Methodology: 2026.01.18

Loiter Malacca Strait Surveillance Zone Aug 26, 2026 05:55 UTC 75.0%
  • Duration: 6h 22m
  • Radius: 33 meters
  • Data Points: 10 AIS positions
  • Centroid: 31.5113, 32.3980
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 33,
    "duration_minutes": 382.5,
    "points": 10,
    "centroid": {
        "lat": 31.511330669999995990337993134744465351104736328125,
        "lon": 32.39801600999999919849869911558926105499267578125
    },
    "bbox": {
        "min_lat": 31.51103669999999823403413756750524044036865234375,
        "min_lon": 32.3979599999999976489561959169805049896240234375,
        "max_lat": 31.511546700000000242880560108460485935211181640625,
        "max_lon": 32.3980566999999979316271492280066013336181640625
    },
    "zone_id": "discovered_160"
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 05:55 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 22m
  • Data Points: 10 AIS positions
  • Period: 2026-08-26T05:55:33+00:00 to 2026-08-26T12:18:04+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 382.5,
    "points_in_zone": 10,
    "first_point": {
        "ts": "2026-08-26T05:55:33+00:00",
        "lat": 31.511546700000000242880560108460485935211181640625,
        "lon": 32.3979767000000009602445061318576335906982421875
    },
    "last_point": {
        "ts": "2026-08-26T12:18:04+00:00",
        "lat": 31.51103669999999823403413756750524044036865234375,
        "lon": 32.3979599999999976489561959169805049896240234375
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 26, 2026 00:00 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 5h 55m
  • Data Points: 3 AIS positions
  • Period: 2026-08-26T00:00:24+00:00 to 2026-08-26T05:55:33+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 355.1000000000000227373675443232059478759765625,
    "points_in_zone": 3,
    "first_point": {
        "ts": "2026-08-26T00:00:24+00:00",
        "lat": 31.51171000000000077534423326142132282257080078125,
        "lon": 32.3980566999999979316271492280066013336181640625
    },
    "last_point": {
        "ts": "2026-08-26T05:55:33+00:00",
        "lat": 31.511546700000000242880560108460485935211181640625,
        "lon": 32.3979767000000009602445061318576335906982421875
    }
}

Methodology: 2026.01.18

Loiter Malacca Strait Surveillance Zone Aug 25, 2026 23:22 UTC 75.0%
  • Duration: 6h 33m
  • Radius: 22 meters
  • Data Points: 12 AIS positions
  • Centroid: 31.5117, 32.3980
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 22.10000000000000142108547152020037174224853515625,
    "duration_minutes": 393,
    "points": 12,
    "centroid": {
        "lat": 31.511738891666663420210170443169772624969482421875,
        "lon": 32.39803916666667049639727338217198848724365234375
    },
    "bbox": {
        "min_lat": 31.511546700000000242880560108460485935211181640625,
        "min_lon": 32.3979767000000009602445061318576335906982421875,
        "max_lat": 31.5117766999999986410330166108906269073486328125,
        "max_lon": 32.3980600000000009686118573881685733795166015625
    },
    "zone_id": "discovered_160"
}

Methodology: 2026.01.18

Sts🛰️✗ Malacca Strait Surveillance Zone Aug 25, 2026 23:07 UTC 80/100
Vessel A: Garuda (GARUDA) SIERRA LEONE
Vessel B: TM HAI HA 568 (TM HAI HA 568) VIETNAM
  • Minimum Distance: 50 meters
  • Average Distance: 52 meters
  • Duration: 54 minutes
  • Period: 2026-08-25T23:07:02+00:00 to 2026-08-26T00:01:02+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Malacca Strait Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (GARUDA and TM HAI HA 568) maintained close proximity (min 50m, avg 52m) for 54 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 Malacca Strait Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 50m, avg 52m
Duration10/25Duration 54 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Malacca Strait Surveillance Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-26T05:45:12.761337+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 667001584,
        "imo": 9272931,
        "name": "GARUDA",
        "flag": "SIERRA LEONE"
    },
    "vessel_b": {
        "mmsi": 574004200,
        "imo": 9274082,
        "name": "TM HAI HA 568",
        "flag": "VIETNAM"
    },
    "min_distance_m": 49.7000000000000028421709430404007434844970703125,
    "avg_distance_m": 51.89999999999999857891452847979962825775146484375,
    "distance_consistency_m": 2,
    "duration_minutes": 54,
    "overlap_duration_s": 3240,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-25T23:07:02+00:00",
        "end": "2026-08-26T00:01:02+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 50m, avg 52m"
            },
            "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 \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Malacca Strait Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GARUDA and TM HAI HA 568) maintained close proximity (min 50m, avg 52m) for 54 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 Malacca Strait Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.51153310000000118407115223817527294158935546875,
            "lon": 32.3979317000000008874849299900233745574951171875
        },
        "time_window": {
            "start_ts": "2026-08-25T23:07:02+00:00",
            "end_ts": "2026-08-26T00:01:02+00:00"
        },
        "searched_at": "2026-08-26T05:45:12.761337+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 25, 2026 23:05 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 6h 33m
  • Data Points: 12 AIS positions
  • Period: 2026-08-25T23:22:31+00:00 to 2026-08-26T05:55:33+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 393,
    "points_in_zone": 12,
    "first_point": {
        "ts": "2026-08-25T23:22:31+00:00",
        "lat": 31.511759999999998882458385196514427661895751953125,
        "lon": 32.3980432999999976573235471732914447784423828125
    },
    "last_point": {
        "ts": "2026-08-26T05:55:33+00:00",
        "lat": 31.511546700000000242880560108460485935211181640625,
        "lon": 32.3979767000000009602445061318576335906982421875
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Malacca Strait Surveillance Zone Aug 25, 2026 22:10 UTC 90/100
Vessel A: Garuda (GARUDA) SIERRA LEONE
Vessel B: TM HAI HA 568 (TM HAI HA 568) VIETNAM
  • Minimum Distance: 50 meters
  • Average Distance: 55 meters
  • Duration: 1h 51m
  • Period: 2026-08-25T22:10:04+00:00 to 2026-08-26T00:01:02+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Malacca Strait Surveillance Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (GARUDA and TM HAI HA 568) maintained close proximity (min 50m, avg 55m) for 111 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 Malacca Strait Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 50m, avg 55m
Duration20/25Duration 111 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Malacca Strait Surveillance Zone

🛰️ Satellite Corroboration

SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-08-26T05:00:02.208252+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 667001584,
        "imo": 9272931,
        "name": "GARUDA",
        "flag": "SIERRA LEONE"
    },
    "vessel_b": {
        "mmsi": 574004200,
        "imo": 9274082,
        "name": "TM HAI HA 568",
        "flag": "VIETNAM"
    },
    "min_distance_m": 49.7000000000000028421709430404007434844970703125,
    "avg_distance_m": 55.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 4.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 111,
    "overlap_duration_s": 6658,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-08-25T22:10:04+00:00",
        "end": "2026-08-26T00:01:02+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 50m, avg 55m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 111 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: Malacca Strait Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GARUDA and TM HAI HA 568) maintained close proximity (min 50m, avg 55m) for 111 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 Malacca Strait Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.511324099999999504007064388133585453033447265625,
            "lon": 32.39779390000000347527020494453608989715576171875
        },
        "time_window": {
            "start_ts": "2026-08-25T22:10:04+00:00",
            "end_ts": "2026-08-26T00:01:02+00:00"
        },
        "searched_at": "2026-08-26T05:00:02.208252+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Malacca Strait Surveillance Zone Aug 25, 2026 22:01 UTC 75.0%
  • Duration: 2h 29m
  • Radius: 72 meters
  • Data Points: 26 AIS positions
  • Centroid: 31.5116, 32.3980
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 72.2000000000000028421709430404007434844970703125,
    "duration_minutes": 149,
    "points": 26,
    "centroid": {
        "lat": 31.5115942307692336044055991806089878082275390625,
        "lon": 32.3980054999999964593371259979903697967529296875
    },
    "bbox": {
        "min_lat": 31.510953300000000609770722803659737110137939453125,
        "min_lon": 32.3977732999999972207660903222858905792236328125,
        "max_lat": 31.5117766999999986410330166108906269073486328125,
        "max_lon": 32.39806329999999690016920794732868671417236328125
    },
    "zone_id": "discovered_160"
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 25, 2026 22:01 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 2h 29m
  • Data Points: 26 AIS positions
  • Period: 2026-08-25T22:01:33+00:00 to 2026-08-26T00:30:33+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 149,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-08-25T22:01:33+00:00",
        "lat": 31.511243300000000289173840428702533245086669921875,
        "lon": 32.39804000000000172576619661413133144378662109375
    },
    "last_point": {
        "ts": "2026-08-26T00:30:33+00:00",
        "lat": 31.5117632999999983667294145561754703521728515625,
        "lon": 32.39802999999999855162968742661178112030029296875
    }
}

Methodology: 2026.01.18

Loiter Malacca Strait Surveillance Zone Aug 25, 2026 21:48 UTC 75.0%
  • Duration: 2h 42m
  • Radius: 72 meters
  • Data Points: 27 AIS positions
  • Centroid: 31.5116, 32.3980
  • Zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 71.7999999999999971578290569595992565155029296875,
    "duration_minutes": 162.30000000000001136868377216160297393798828125,
    "points": 27,
    "centroid": {
        "lat": 31.5115911111111159925712854601442813873291015625,
        "lon": 32.39800171481481783075651037506759166717529296875
    },
    "bbox": {
        "min_lat": 31.510953300000000609770722803659737110137939453125,
        "min_lon": 32.3977732999999972207660903222858905792236328125,
        "max_lat": 31.5117766999999986410330166108906269073486328125,
        "max_lon": 32.39806329999999690016920794732868671417236328125
    },
    "zone_id": "discovered_160"
}

Methodology: 2026.01.18

Sts Malacca Strait Surveillance Zone Aug 25, 2026 21:43 UTC 95/100
Vessel A: Garuda (GARUDA) SIERRA LEONE
Vessel B: TM HAI HA 568 (TM HAI HA 568) VIETNAM
  • Minimum Distance: 50 meters
  • Average Distance: 58 meters
  • Duration: 2h 18m
  • Period: 2026-08-25T21:43:04+00:00 to 2026-08-26T00:01:02+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Malacca Strait Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (GARUDA and TM HAI HA 568) maintained close proximity (min 50m, avg 58m) for 138 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 Malacca Strait Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 50m, avg 58m
Duration25/25Duration 138 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±8m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Malacca Strait Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 667001584,
        "imo": 9272931,
        "name": "GARUDA",
        "flag": "SIERRA LEONE"
    },
    "vessel_b": {
        "mmsi": 574004200,
        "imo": 9274082,
        "name": "TM HAI HA 568",
        "flag": "VIETNAM"
    },
    "min_distance_m": 49.7000000000000028421709430404007434844970703125,
    "avg_distance_m": 58.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 7.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 138,
    "overlap_duration_s": 8278,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-08-25T21:43:04+00:00",
        "end": "2026-08-26T00:01:02+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 50m, avg 58m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 138 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: Malacca Strait Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (GARUDA and TM HAI HA 568) maintained close proximity (min 50m, avg 58m) for 138 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 Malacca Strait Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Malacca Strait Surveillance Zone Aug 25, 2026 21:05 UTC 80.0%
  • Zone: Malacca Strait Surveillance Zone
  • Duration: 3h 24m
  • Data Points: 28 AIS positions
  • Period: 2026-08-25T21:05:52+00:00 to 2026-08-26T00:30:33+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_160",
    "zone_name": "Malacca Strait Surveillance Zone",
    "dwell_minutes": 204.69999999999998863131622783839702606201171875,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-08-25T21:05:52+00:00",
        "lat": 31.510193300000000959926182986237108707427978515625,
        "lon": 32.40856000000000136651578941382467746734619140625
    },
    "last_point": {
        "ts": "2026-08-26T00:30:33+00:00",
        "lat": 31.5117632999999983667294145561754703521728515625,
        "lon": 32.39802999999999855162968742661178112030029296875
    }
}

Methodology: 2026.01.18

Sanctioned on the same day

  • AETHER · IMO 9328170 🇪🇺 EU🇬🇧 UK
  • ATMOS · IMO 9337418 🇪🇺 EU🇬🇧 UK
  • BINARY STAR · IMO 9380570 🇪🇺 EU🇬🇧 UK
  • CAPELLA MB · IMO 9343986 🇪🇺 EU
  • DERZHAVA · IMO 9290385 🇪🇺 EU🇬🇧 UK
  • DOVE · IMO 9297541 🇪🇺 EU🇬🇧 UK
  • GLOBAL STAR · IMO 9198082 🇪🇺 EU🇬🇧 UK
  • HORAE · IMO 9413004 🇪🇺 EU🇬🇧 UK