PHOENIX

IMO 9332810

Vessel information

Vessel Name PHOENIX View name history 📜
IMO Number 9332810
MMSI 610107116
Vessel Type Oil Tanker
Flag 🇷🇺 Russia View flag history 📜
Call Sign TYD16
Gross Tonnage 59,164 GT
Year Built 2007

Sanctioned by

🇪🇺 EU 2025-02-25🇬🇧 UK 2024-10-17🇨🇦 CA 2025-02-21🇳🇿 NZ 2025-06-19

Company & Ownership

🏢
Baaj Shipping Ltd
IMO Company: 0203287
Address Room 102, Aarti Chambers, Mont Fleuri, Victoria, Mahe Island, Seychelles.
Status Active
Fleet 1.0 owner, 1.0 operator, 1.0 manager, 0.0 beneficial

Management & Operations

ISM Manager
FLEET SYNERGY LLC
Office 3-N, Litera A, ul Telezhnaya 3, St Petersburg, 191024, Russia.
Commercial Manager
FLEET SYNERGY LLC
Room 102, Aarti Chambers, Mont Fleuri, Victoria, Mahe Island, Seychelles.
Registered Owner
BAAJ SHIPPING LTD
Office 3-N, Litera A, ul Telezhnaya 3, St Petersburg, 191024, Russia.

Classification & Safety

Current Classification
Russian Maritime Register of Shipping Delivered

Port State Control (PSC) Inspections

⚠️
Risk Level
HIGH
Last 36 Months
2
Inspections
1
Detentions
Last Inspection
📍 Muuga
📅 2025-04-11

Survey Renewal & Certificates

Code Type Issuer Issued Expires
512 Minimum Safe Manning Document Gabon (GA) 07/05/2024 01/05/2029
509 Document of Compliance American Bureau of Shipping (101) 02/08/2022 01/08/2027

Programs & Notes

SEMA (Canada) — vessel designations | The Russia (Sanctions) (EU Exit) Regulations 2019 | Added in EU Sanctions Package 16 | (Council Decision (CFSP) 2025/394, Annex XVI to Decision 2014/512/CFSP) | Press Release | Official Journal

DateOfListing: 2025-02-25 || DateDesignated: 2024-10-17 | Shipping sanctions: (see “Other information”) | Shipping sanctions: a specified ship is prohibited from being provided with access to or having its master or pilot cause it to enter a port in the UK, may have its registration on the UK Ship Register terminated, and a master or pilot of a specified ship may be given a port barring direction, a detention direction, and a port entry direction or a movement direction. | VARUNA (IMO 9332810) is involved in activity whose object or effect is to destabilise Ukraine or undermine or threaten the territorial integrity, sovereignty or independence of Ukraine or to obtain a benefit from or support the Government of Russia, namely, the VARUNA is involved in carrying oil or oil products that originated in Russia from Russia to a third country.

Vessel Changes

22 changes

AIS Events

50 events detected • 2 zones • Last: Jul 19, 2026

Zone Dwell Archipelago Sea Sanction Zone Jul 19, 2026 09:05 UTC 80.0%
  • Zone: Archipelago Sea Sanction Zone
  • Duration: 1h 29m
  • Data Points: 22 AIS positions
  • Period: 2026-07-19T09:05:32+00:00 to 2026-07-19T10:34:34+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_002",
    "zone_name": "Archipelago Sea Sanction Zone",
    "dwell_minutes": 89,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-07-19T09:05:32+00:00",
        "lat": 35.02139329999999972642399370670318603515625,
        "lon": 129.24808999999999059582478366792201995849609375
    },
    "last_point": {
        "ts": "2026-07-19T10:34:34+00:00",
        "lat": 35.16159499999999837882569408975541591644287109375,
        "lon": 129.51361670000000003710738383233547210693359375
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 19, 2026 07:03 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 2h 5m
  • Data Points: 22 AIS positions
  • Period: 2026-07-19T07:03:07+00:00 to 2026-07-19T09:08:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 125.2999999999999971578290569595992565155029296875,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-07-19T07:03:07+00:00",
        "lat": 35.02811669999999821811798028647899627685546875,
        "lon": 129.072611700000010159783414565026760101318359375
    },
    "last_point": {
        "ts": "2026-07-19T09:08:23+00:00",
        "lat": 35.0231050000000010413714335300028324127197265625,
        "lon": 129.257785000000012587406672537326812744140625
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 19, 2026 06:15 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 2h 53m
  • Data Points: 25 AIS positions
  • Period: 2026-07-19T06:15:10+00:00 to 2026-07-19T09:08:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 173.19999999999998863131622783839702606201171875,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-07-19T06:15:10+00:00",
        "lat": 35.02823670000000078061930253170430660247802734375,
        "lon": 129.0724867000000131156411953270435333251953125
    },
    "last_point": {
        "ts": "2026-07-19T09:08:23+00:00",
        "lat": 35.0231050000000010413714335300028324127197265625,
        "lon": 129.257785000000012587406672537326812744140625
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Strait of Gibraltar Surveillance Zone Jul 19, 2026 06:12 UTC 80/100
Vessel A: IMO 9181352 (BUKWANG) REPUBLIC OF KOREA
Vessel B: PHOENIX (PHOENIX) RUSSIA
  • Minimum Distance: 59 meters
  • Average Distance: 63 meters
  • Duration: 56 minutes
  • Period: 2026-07-19T06:12:41+00:00 to 2026-07-19T07:09:22+00:00
  • Vessel A Avg Speed: 0.3 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (BUKWANG and PHOENIX) maintained close proximity (min 59m, avg 63m) for 57 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 59m, avg 63m
Duration10/25Duration 57 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-19T08:15:05.466382+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440191310,
        "imo": 9181352,
        "name": "BUKWANG",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 273270560,
        "imo": 9332810,
        "name": "PHOENIX",
        "flag": "RUSSIA"
    },
    "min_distance_m": 59.10000000000000142108547152020037174224853515625,
    "avg_distance_m": 63.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 56.7000000000000028421709430404007434844970703125,
    "overlap_duration_s": 3401,
    "speed_a_avg": 0.320000000000000006661338147750939242541790008544921875,
    "speed_a_std": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.320000000000000006661338147750939242541790008544921875,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-19T06:12:41+00:00",
        "end": "2026-07-19T07:09:22+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 59m, avg 63m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 57 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (BUKWANG and PHOENIX) maintained close proximity (min 59m, avg 63m) for 57 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.0278631999999987556293490342795848846435546875,
            "lon": 129.0724500000000034560798667371273040771484375
        },
        "time_window": {
            "start_ts": "2026-07-19T06:12:41+00:00",
            "end_ts": "2026-07-19T07:09:22+00:00"
        },
        "searched_at": "2026-07-19T08:15:05.466382+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 19, 2026 05:06 UTC 75.0%
  • Duration: 3h 5m
  • Radius: 406 meters
  • Data Points: 14 AIS positions
  • Centroid: 35.0277, 129.0726
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 406.19999999999998863131622783839702606201171875,
    "duration_minutes": 185.19999999999998863131622783839702606201171875,
    "points": 14,
    "centroid": {
        "lat": 35.02771274285714042662220890633761882781982421875,
        "lon": 129.072624649999994517202139832079410552978515625
    },
    "bbox": {
        "min_lat": 35.02432830000000052450559451244771480560302734375,
        "min_lon": 129.071786699999989878051565028727054595947265625,
        "max_lat": 35.02823670000000078061930253170430660247802734375,
        "max_lon": 129.07432330000000320069375447928905487060546875
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 19, 2026 05:06 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 4h 2m
  • Data Points: 30 AIS positions
  • Period: 2026-07-19T05:06:09+00:00 to 2026-07-19T09:08:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 242.19999999999998863131622783839702606201171875,
    "points_in_zone": 30,
    "first_point": {
        "ts": "2026-07-19T05:06:09+00:00",
        "lat": 35.02800500000000027966962079517543315887451171875,
        "lon": 129.0725932999999940875568427145481109619140625
    },
    "last_point": {
        "ts": "2026-07-19T09:08:23+00:00",
        "lat": 35.0231050000000010413714335300028324127197265625,
        "lon": 129.257785000000012587406672537326812744140625
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Strait of Gibraltar Surveillance Zone Jul 19, 2026 05:06 UTC 90/100
Vessel A: PHOENIX (PHOENIX) RUSSIA
Vessel B: IMO 9181352 (BUKWANG) REPUBLIC OF KOREA
  • Minimum Distance: 59 meters
  • Average Distance: 66 meters
  • Duration: 1h 57m
  • Period: 2026-07-19T05:06:09+00:00 to 2026-07-19T07:03:07+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (PHOENIX and BUKWANG) maintained close proximity (min 59m, avg 66m) for 117 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 59m, avg 66m
Duration20/25Duration 117 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±7m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-19T11:45:01.465553+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273270560,
        "imo": 9332810,
        "name": "PHOENIX",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 440191310,
        "imo": 9181352,
        "name": "BUKWANG",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 59.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 65.900000000000005684341886080801486968994140625,
    "distance_consistency_m": 6.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 117,
    "overlap_duration_s": 7018,
    "speed_a_avg": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_a_std": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_b_avg": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_b_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.08000000000000000166533453693773481063544750213623046875,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0.2300000000000000099920072216264088638126850128173828125,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-19T05:06:09+00:00",
        "end": "2026-07-19T07:03:07+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 59m, avg 66m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 117 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PHOENIX and BUKWANG) maintained close proximity (min 59m, avg 66m) for 117 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.0277856000000014091710909269750118255615234375,
            "lon": 129.072492000000011103111319243907928466796875
        },
        "time_window": {
            "start_ts": "2026-07-19T05:06:09+00:00",
            "end_ts": "2026-07-19T07:03:07+00:00"
        },
        "searched_at": "2026-07-19T11:45:01.465553+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 19, 2026 04:51 UTC 75.0%
  • Duration: 3h 20m
  • Radius: 406 meters
  • Data Points: 15 AIS positions
  • Centroid: 35.0277, 129.0726
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 406.1000000000000227373675443232059478759765625,
    "duration_minutes": 200.19999999999998863131622783839702606201171875,
    "points": 15,
    "centroid": {
        "lat": 35.02771677999999866415237192995846271514892578125,
        "lon": 129.072638893333333953705732710659503936767578125
    },
    "bbox": {
        "min_lat": 35.02432830000000052450559451244771480560302734375,
        "min_lon": 129.071786699999989878051565028727054595947265625,
        "max_lat": 35.02823670000000078061930253170430660247802734375,
        "max_lon": 129.07432330000000320069375447928905487060546875
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 19, 2026 04:51 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 4h 17m
  • Data Points: 31 AIS positions
  • Period: 2026-07-19T04:51:08+00:00 to 2026-07-19T09:08:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 257.19999999999998863131622783839702606201171875,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-07-19T04:51:08+00:00",
        "lat": 35.02777329999999977871993905864655971527099609375,
        "lon": 129.07283830000000079962774179875850677490234375
    },
    "last_point": {
        "ts": "2026-07-19T09:08:23+00:00",
        "lat": 35.0231050000000010413714335300028324127197265625,
        "lon": 129.257785000000012587406672537326812744140625
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Strait of Gibraltar Surveillance Zone Jul 19, 2026 04:44 UTC 75/100
Vessel A: IMO 9181352 (BUKWANG) REPUBLIC OF KOREA
Vessel B: PHOENIX (PHOENIX) RUSSIA
  • Minimum Distance: 65 meters
  • Average Distance: 70 meters
  • Duration: 34 minutes
  • Period: 2026-07-19T04:44:21+00:00 to 2026-07-19T05:19:01+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: 75/100

Moderate-confidence STS candidate. Two tankers (BUKWANG and PHOENIX) maintained close proximity (min 65m, avg 70m) for 35 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 65m, avg 70m
Duration5/25Duration 35 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

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-07-19T08:15:01.744149+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440191310,
        "imo": 9181352,
        "name": "BUKWANG",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 273270560,
        "imo": 9332810,
        "name": "PHOENIX",
        "flag": "RUSSIA"
    },
    "min_distance_m": 64.599999999999994315658113919198513031005859375,
    "avg_distance_m": 70.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 8.699999999999999289457264239899814128875732421875,
    "duration_minutes": 34.7000000000000028421709430404007434844970703125,
    "overlap_duration_s": 2080,
    "speed_a_avg": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_a_std": 0.11000000000000000055511151231257827021181583404541015625,
    "speed_b_avg": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1600000000000000033306690738754696212708950042724609375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0.1000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-19T04:44:21+00:00",
        "end": "2026-07-19T05:19:01+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 65m, avg 70m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 35 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": "Moderate-confidence STS candidate. Two tankers (BUKWANG and PHOENIX) maintained close proximity (min 65m, avg 70m) for 35 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.0276137999999974681486492045223712921142578125,
            "lon": 129.072546200000005001129466108977794647216796875
        },
        "time_window": {
            "start_ts": "2026-07-19T04:44:21+00:00",
            "end_ts": "2026-07-19T05:19:01+00:00"
        },
        "searched_at": "2026-07-19T08:15:01.744149+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 19, 2026 03:39 UTC 75.0%
  • Duration: 4h 32m
  • Radius: 411 meters
  • Data Points: 16 AIS positions
  • Centroid: 35.0278, 129.0726
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 411.19999999999998863131622783839702606201171875,
    "duration_minutes": 272.19999999999998863131622783839702606201171875,
    "points": 16,
    "centroid": {
        "lat": 35.02775989999999950441633700393140316009521484375,
        "lon": 129.072620731249998016210156492888927459716796875
    },
    "bbox": {
        "min_lat": 35.02432830000000052450559451244771480560302734375,
        "min_lon": 129.071786699999989878051565028727054595947265625,
        "max_lat": 35.02840669999999789752109791152179241180419921875,
        "max_lon": 129.07432330000000320069375447928905487060546875
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 19, 2026 03:39 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 5h 29m
  • Data Points: 32 AIS positions
  • Period: 2026-07-19T03:39:08+00:00 to 2026-07-19T09:08:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 329.19999999999998863131622783839702606201171875,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-07-19T03:39:08+00:00",
        "lat": 35.02840669999999789752109791152179241180419921875,
        "lon": 129.07234829999998737548594363033771514892578125
    },
    "last_point": {
        "ts": "2026-07-19T09:08:23+00:00",
        "lat": 35.0231050000000010413714335300028324127197265625,
        "lon": 129.257785000000012587406672537326812744140625
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Strait of Gibraltar Surveillance Zone Jul 19, 2026 03:39 UTC 95/100
Vessel A: PHOENIX (PHOENIX) RUSSIA
Vessel B: IMO 9181352 (BUKWANG) REPUBLIC OF KOREA
  • Minimum Distance: 59 meters
  • Average Distance: 66 meters
  • Duration: 3h 24m
  • Period: 2026-07-19T03:39:08+00:00 to 2026-07-19T07:03:07+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (PHOENIX and BUKWANG) maintained close proximity (min 59m, avg 66m) for 204 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 59m, avg 66m
Duration25/25Duration 204 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: 2026-07-19T09:30:11.360295+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273270560,
        "imo": 9332810,
        "name": "PHOENIX",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 440191310,
        "imo": 9181352,
        "name": "BUKWANG",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 59.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 65.599999999999994315658113919198513031005859375,
    "distance_consistency_m": 6.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 204,
    "overlap_duration_s": 12239,
    "speed_a_avg": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_a_std": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_b_avg": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_b_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.08000000000000000166533453693773481063544750213623046875,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0.2300000000000000099920072216264088638126850128173828125,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-19T03:39:08+00:00",
        "end": "2026-07-19T07:03:07+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 59m, avg 66m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 204 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PHOENIX and BUKWANG) maintained close proximity (min 59m, avg 66m) for 204 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.0277949000000035084667615592479705810546875,
            "lon": 129.07248229999999011852196417748928070068359375
        },
        "time_window": {
            "start_ts": "2026-07-19T03:39:08+00:00",
            "end_ts": "2026-07-19T07:03:07+00:00"
        },
        "searched_at": "2026-07-19T09:30:11.360295+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 19, 2026 02:06 UTC 75.0%
  • Duration: 6h 5m
  • Radius: 446 meters
  • Data Points: 21 AIS positions
  • Centroid: 35.0280, 129.0724
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 446,
    "duration_minutes": 365.19999999999998863131622783839702606201171875,
    "points": 21,
    "centroid": {
        "lat": 35.0280123809523757927308906801044940948486328125,
        "lon": 129.072368176190451549700810573995113372802734375
    },
    "bbox": {
        "min_lat": 35.02432830000000052450559451244771480560302734375,
        "min_lon": 129.071196700000001555963535793125629425048828125,
        "max_lat": 35.0289582999999993262463249266147613525390625,
        "max_lon": 129.07432330000000320069375447928905487060546875
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 19, 2026 02:06 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 29m
  • Data Points: 34 AIS positions
  • Period: 2026-07-19T02:39:08+00:00 to 2026-07-19T09:08:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 389.19999999999998863131622783839702606201171875,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-07-19T02:39:08+00:00",
        "lat": 35.0287732999999974481397657655179500579833984375,
        "lon": 129.071724999999986494003678672015666961669921875
    },
    "last_point": {
        "ts": "2026-07-19T09:08:23+00:00",
        "lat": 35.0231050000000010413714335300028324127197265625,
        "lon": 129.257785000000012587406672537326812744140625
    }
}

Methodology: 2026.01.18

Sts Strait of Gibraltar Surveillance Zone Jul 19, 2026 02:06 UTC 95/100
Vessel A: PHOENIX (PHOENIX) RUSSIA
Vessel B: IMO 9181352 (BUKWANG) REPUBLIC OF KOREA
  • Minimum Distance: 56 meters
  • Average Distance: 65 meters
  • Duration: 4h 57m
  • Period: 2026-07-19T02:06:09+00:00 to 2026-07-19T07:03:07+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (PHOENIX and BUKWANG) maintained close proximity (min 56m, avg 65m) for 297 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 56m, avg 65m
Duration25/25Duration 297 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
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273270560,
        "imo": 9332810,
        "name": "PHOENIX",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 440191310,
        "imo": 9181352,
        "name": "BUKWANG",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 55.7999999999999971578290569595992565155029296875,
    "avg_distance_m": 64.599999999999994315658113919198513031005859375,
    "distance_consistency_m": 6.5,
    "duration_minutes": 297,
    "overlap_duration_s": 17818,
    "speed_a_avg": 0.070000000000000006661338147750939242541790008544921875,
    "speed_a_std": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_b_avg": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_b_std": 0.11999999999999999555910790149937383830547332763671875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.070000000000000006661338147750939242541790008544921875,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0.2300000000000000099920072216264088638126850128173828125,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-19T02:06:09+00:00",
        "end": "2026-07-19T07:03:07+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 56m, avg 65m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 297 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PHOENIX and BUKWANG) maintained close proximity (min 56m, avg 65m) for 297 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 19, 2026 01:15 UTC 75.0%
  • Duration: 6h 23m
  • Radius: 228 meters
  • Data Points: 18 AIS positions
  • Centroid: 35.0283, 129.0722
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 228.400000000000005684341886080801486968994140625,
    "duration_minutes": 383.8999999999999772626324556767940521240234375,
    "points": 18,
    "centroid": {
        "lat": 35.02831684999998884677552268840372562408447265625,
        "lon": 129.072197316666660071859951131045818328857421875
    },
    "bbox": {
        "min_lat": 35.02777329999999977871993905864655971527099609375,
        "min_lon": 129.069854999999989786374499090015888214111328125,
        "max_lat": 35.0290432999999978846972226165235042572021484375,
        "max_lon": 129.0728917000000137704773806035518646240234375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 19, 2026 01:15 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 23m
  • Data Points: 18 AIS positions
  • Period: 2026-07-19T01:15:11+00:00 to 2026-07-19T07:39:08+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 383.8999999999999772626324556767940521240234375,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-07-19T01:15:11+00:00",
        "lat": 35.0290432999999978846972226165235042572021484375,
        "lon": 129.069854999999989786374499090015888214111328125
    },
    "last_point": {
        "ts": "2026-07-19T07:39:08+00:00",
        "lat": 35.02806170000000207664925255812704563140869140625,
        "lon": 129.072591700000003811510396189987659454345703125
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 19, 2026 00:12 UTC 75.0%
  • Duration: 6h 33m
  • Radius: 229 meters
  • Data Points: 17 AIS positions
  • Centroid: 35.0284, 129.0720
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 228.900000000000005684341886080801486968994140625,
    "duration_minutes": 393,
    "points": 17,
    "centroid": {
        "lat": 35.0283753882352897335294983349740505218505859375,
        "lon": 129.07199431176474035964929498732089996337890625
    },
    "bbox": {
        "min_lat": 35.02777329999999977871993905864655971527099609375,
        "min_lon": 129.069555000000008249116945080459117889404296875,
        "max_lat": 35.0290432999999978846972226165235042572021484375,
        "max_lon": 129.0728917000000137704773806035518646240234375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 19, 2026 00:12 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 33m
  • Data Points: 17 AIS positions
  • Period: 2026-07-19T00:12:09+00:00 to 2026-07-19T06:45:07+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 393,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-07-19T00:12:09+00:00",
        "lat": 35.02885669999999862511685932986438274383544921875,
        "lon": 129.069555000000008249116945080459117889404296875
    },
    "last_point": {
        "ts": "2026-07-19T06:45:07+00:00",
        "lat": 35.0281566999999967038093018345534801483154296875,
        "lon": 129.072571699999997463237377814948558807373046875
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Strait of Gibraltar Surveillance Zone Jul 19, 2026 00:12 UTC 85/100
Vessel A: PHOENIX (PHOENIX) RUSSIA
Vessel B: IMO 9281176 (WOOWONHO) REPUBLIC OF KOREA
  • Minimum Distance: 70 meters
  • Average Distance: 81 meters
  • Duration: 1h 3m
  • Period: 2026-07-19T00:12:09+00:00 to 2026-07-19T01:15:11+00:00
  • Vessel A Avg Speed: 0.3 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (PHOENIX and WOOWONHO) maintained close proximity (min 70m, avg 81m) for 63 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 70m, avg 81m
Duration15/25Duration 63 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±15m
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: 2026-07-19T06:00:01.762985+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273270560,
        "imo": 9332810,
        "name": "PHOENIX",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 440400900,
        "imo": 9281176,
        "name": "WOOWONHO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 70,
    "avg_distance_m": 80.599999999999994315658113919198513031005859375,
    "distance_consistency_m": 15,
    "duration_minutes": 63,
    "overlap_duration_s": 3782,
    "speed_a_avg": 0.299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.2800000000000000266453525910037569701671600341796875,
    "speed_b_avg": 0.299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.2800000000000000266453525910037569701671600341796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-19T00:12:09+00:00",
        "end": "2026-07-19T01:15:11+00:00"
    },
    "points_count": {
        "vessel_a": 2,
        "vessel_b": 2
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 70m, avg 81m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 63 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b115m"
            },
            "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 (PHOENIX and WOOWONHO) maintained close proximity (min 70m, avg 81m) for 63 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.02872289999999821930032339878380298614501953125,
            "lon": 129.07004960000000437503331340849399566650390625
        },
        "time_window": {
            "start_ts": "2026-07-19T00:12:09+00:00",
            "end_ts": "2026-07-19T01:15:11+00:00"
        },
        "searched_at": "2026-07-19T06:00:01.762985+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Strait of Gibraltar Surveillance Zone Jul 18, 2026 23:12 UTC 95/100
Vessel A: PHOENIX (PHOENIX) RUSSIA
Vessel B: IMO 9281176 (WOOWONHO) REPUBLIC OF KOREA
  • Minimum Distance: 54 meters
  • Average Distance: 72 meters
  • Duration: 2h 3m
  • Period: 2026-07-18T23:12:06+00:00 to 2026-07-19T01:15:11+00:00
  • Vessel A Avg Speed: 0.3 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (PHOENIX and WOOWONHO) maintained close proximity (min 54m, avg 72m) for 123 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 54m, avg 72m
Duration25/25Duration 123 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±19m
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: 2026-07-19T05:45:04.900026+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273270560,
        "imo": 9332810,
        "name": "PHOENIX",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 440400900,
        "imo": 9281176,
        "name": "WOOWONHO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 53.5,
    "avg_distance_m": 71.599999999999994315658113919198513031005859375,
    "distance_consistency_m": 18.89999999999999857891452847979962825775146484375,
    "duration_minutes": 123.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 7385,
    "speed_a_avg": 0.299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.200000000000000011102230246251565404236316680908203125,
    "speed_b_avg": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_b_std": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.2300000000000000099920072216264088638126850128173828125,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-07-18T23:12:06+00:00",
        "end": "2026-07-19T01:15:11+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 54m, avg 72m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 123 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b119m"
            },
            "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 (PHOENIX and WOOWONHO) maintained close proximity (min 54m, avg 72m) for 123 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.028452799999996614133124239742755889892578125,
            "lon": 129.069416399999994382596923969686031341552734375
        },
        "time_window": {
            "start_ts": "2026-07-18T23:12:06+00:00",
            "end_ts": "2026-07-19T01:15:11+00:00"
        },
        "searched_at": "2026-07-19T05:45:04.900026+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 18, 2026 23:00 UTC 75.0%
  • Duration: 6h 36m
  • Radius: 343 meters
  • Data Points: 15 AIS positions
  • Centroid: 35.0284, 129.0716
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 343,
    "duration_minutes": 396,
    "points": 15,
    "centroid": {
        "lat": 35.02840187999999699286490795202553272247314453125,
        "lon": 129.071598880000038889193092472851276397705078125
    },
    "bbox": {
        "min_lat": 35.02777329999999977871993905864655971527099609375,
        "min_lon": 129.067873300000002245724317617714405059814453125,
        "max_lat": 35.0290432999999978846972226165235042572021484375,
        "max_lon": 129.0728917000000137704773806035518646240234375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 23:00 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 36m
  • Data Points: 15 AIS positions
  • Period: 2026-07-18T23:12:06+00:00 to 2026-07-19T05:48:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-07-18T23:12:06+00:00",
        "lat": 35.027991700000001173975761048495769500732421875,
        "lon": 129.067873300000002245724317617714405059814453125
    },
    "last_point": {
        "ts": "2026-07-19T05:48:06+00:00",
        "lat": 35.02799999999999869260136620141565799713134765625,
        "lon": 129.072779999999994515746948309242725372314453125
    }
}

Methodology: 2026.01.18

Sts Strait of Gibraltar Surveillance Zone Jul 18, 2026 22:36 UTC 95/100
Vessel A: PHOENIX (PHOENIX) RUSSIA
Vessel B: IMO 9281176 (WOOWONHO) REPUBLIC OF KOREA
  • Minimum Distance: 50 meters
  • Average Distance: 63 meters
  • Duration: 2h 39m
  • Period: 2026-07-18T22:36:08+00:00 to 2026-07-19T01:15:11+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (PHOENIX and WOOWONHO) maintained close proximity (min 50m, avg 62m) for 159 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 50m, avg 62m
Duration25/25Duration 159 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": 273270560,
        "imo": 9332810,
        "name": "PHOENIX",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 440400900,
        "imo": 9281176,
        "name": "WOOWONHO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 50,
    "avg_distance_m": 62.5,
    "distance_consistency_m": 10.5,
    "duration_minutes": 159.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 9543,
    "speed_a_avg": 0.2399999999999999911182158029987476766109466552734375,
    "speed_a_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_b_avg": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_std": 0.11000000000000000055511151231257827021181583404541015625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.2399999999999999911182158029987476766109466552734375,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.14000000000000001332267629550187848508358001708984375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        }
    },
    "time_window": {
        "start": "2026-07-18T22:36:08+00:00",
        "end": "2026-07-19T01:15:11+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 50m, avg 62m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 159 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 (PHOENIX and WOOWONHO) maintained close proximity (min 50m, avg 62m) for 159 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 18, 2026 22:15 UTC 75.0%
  • Duration: 6h 33m
  • Radius: 301 meters
  • Data Points: 14 AIS positions
  • Centroid: 35.0285, 129.0711
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 300.8999999999999772626324556767940521240234375,
    "duration_minutes": 393,
    "points": 14,
    "centroid": {
        "lat": 35.028473928571429496514610946178436279296875,
        "lon": 129.07111796428574734818539582192897796630859375
    },
    "bbox": {
        "min_lat": 35.02777329999999977871993905864655971527099609375,
        "min_lon": 129.067873300000002245724317617714405059814453125,
        "max_lat": 35.0290432999999978846972226165235042572021484375,
        "max_lon": 129.07283830000000079962774179875850677490234375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 22:15 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 33m
  • Data Points: 14 AIS positions
  • Period: 2026-07-18T22:36:08+00:00 to 2026-07-19T05:09:09+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 393,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-07-18T22:36:08+00:00",
        "lat": 35.02828170000000085337887867353856563568115234375,
        "lon": 129.07101499999998850398696959018707275390625
    },
    "last_point": {
        "ts": "2026-07-19T05:09:09+00:00",
        "lat": 35.0280132999999977982952259480953216552734375,
        "lon": 129.0727200000000038926373235881328582763671875
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 18, 2026 20:00 UTC 75.0%
  • Duration: 6 hours
  • Radius: 277 meters
  • Data Points: 13 AIS positions
  • Centroid: 35.0284, 129.0709
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 277.1000000000000227373675443232059478759765625,
    "duration_minutes": 360,
    "points": 13,
    "centroid": {
        "lat": 35.0283696230769265866911155171692371368408203125,
        "lon": 129.070874353846164694914477877318859100341796875
    },
    "bbox": {
        "min_lat": 35.027046699999999646024662069976329803466796875,
        "min_lon": 129.067873300000002245724317617714405059814453125,
        "max_lat": 35.0290432999999978846972226165235042572021484375,
        "max_lon": 129.072491700000000491854734718799591064453125
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 20:00 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6 hours
  • Data Points: 13 AIS positions
  • Period: 2026-07-18T20:42:06+00:00 to 2026-07-19T02:42:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 360,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-07-18T20:42:06+00:00",
        "lat": 35.027046699999999646024662069976329803466796875,
        "lon": 129.072491700000000491854734718799591064453125
    },
    "last_point": {
        "ts": "2026-07-19T02:42:06+00:00",
        "lat": 35.02872669999999999390638549812138080596923828125,
        "lon": 129.07175000000000864019966684281826019287109375
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 18, 2026 19:12 UTC 75.0%
  • Duration: 6h 36m
  • Radius: 297 meters
  • Data Points: 15 AIS positions
  • Centroid: 35.0282, 129.0711
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 296.5,
    "duration_minutes": 396,
    "points": 15,
    "centroid": {
        "lat": 35.02816612000000162652213475666940212249755859375,
        "lon": 129.0711154399999713859870098531246185302734375
    },
    "bbox": {
        "min_lat": 35.027046699999999646024662069976329803466796875,
        "min_lon": 129.067873300000002245724317617714405059814453125,
        "max_lat": 35.0290432999999978846972226165235042572021484375,
        "max_lon": 129.072491700000000491854734718799591064453125
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 19:12 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 36m
  • Data Points: 15 AIS positions
  • Period: 2026-07-18T19:42:07+00:00 to 2026-07-19T02:18:07+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-07-18T19:42:07+00:00",
        "lat": 35.02773169999999680612745578400790691375732421875,
        "lon": 129.0723150000000032378011383116245269775390625
    },
    "last_point": {
        "ts": "2026-07-19T02:18:07+00:00",
        "lat": 35.0288350000000008321876521222293376922607421875,
        "lon": 129.07158329999998613857314921915531158447265625
    }
}

Methodology: 2026.01.18

Sts Strait of Gibraltar Surveillance Zone Jul 18, 2026 19:07 UTC 90/100
Vessel A: PHOENIX (PHOENIX) RUSSIA
Vessel B: IMO 9281176 (WOOWONHO) REPUBLIC OF KOREA
  • Minimum Distance: 56 meters
  • Average Distance: 64 meters
  • Duration: 1h 42m
  • Period: 2026-07-18T19:12:09+00:00 to 2026-07-18T20:54:09+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (PHOENIX and WOOWONHO) maintained close proximity (min 56m, avg 64m) for 102 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 56m, avg 64m
Duration20/25Duration 102 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273270560,
        "imo": 9332810,
        "name": "PHOENIX",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 440400900,
        "imo": 9281176,
        "name": "WOOWONHO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 55.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 64.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 4.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 102,
    "overlap_duration_s": 6120,
    "speed_a_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_a_std": 0.13000000000000000444089209850062616169452667236328125,
    "speed_b_avg": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_b_std": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        },
        "vessel_b": {
            "avg_sog": 0.1700000000000000122124532708767219446599483489990234375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        }
    },
    "time_window": {
        "start": "2026-07-18T19:12:09+00:00",
        "end": "2026-07-18T20:54:09+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 56m, avg 64m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 102 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PHOENIX and WOOWONHO) maintained close proximity (min 56m, avg 64m) for 102 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Sts Strait of Gibraltar Surveillance Zone Jul 18, 2026 18:45 UTC 95/100
Vessel A: PHOENIX (PHOENIX) RUSSIA
Vessel B: IMO 9281176 (WOOWONHO) REPUBLIC OF KOREA
  • Minimum Distance: 56 meters
  • Average Distance: 65 meters
  • Duration: 2h 9m
  • Period: 2026-07-18T18:45:07+00:00 to 2026-07-18T20:54:09+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Strait of Gibraltar Surveillance Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (PHOENIX and WOOWONHO) maintained close proximity (min 56m, avg 65m) for 129 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 56m, avg 65m
Duration25/25Duration 129 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273270560,
        "imo": 9332810,
        "name": "PHOENIX",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 440400900,
        "imo": 9281176,
        "name": "WOOWONHO",
        "flag": "REPUBLIC OF KOREA"
    },
    "min_distance_m": 55.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 64.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 5.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 129,
    "overlap_duration_s": 7742,
    "speed_a_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_a_std": 0.11999999999999999555910790149937383830547332763671875,
    "speed_b_avg": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_b_std": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        },
        "vessel_b": {
            "avg_sog": 0.1700000000000000122124532708767219446599483489990234375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        }
    },
    "time_window": {
        "start": "2026-07-18T18:45:07+00:00",
        "end": "2026-07-18T20:54:09+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 56m, avg 65m"
            },
            "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 \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Strait of Gibraltar Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PHOENIX and WOOWONHO) maintained close proximity (min 56m, avg 65m) for 129 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 18, 2026 18:15 UTC 75.0%
  • Duration: 6h 30m
  • Radius: 326 meters
  • Data Points: 17 AIS positions
  • Centroid: 35.0278, 129.0714
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 326.3999999999999772626324556767940521240234375,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 17,
    "centroid": {
        "lat": 35.02784011176471068438331712968647480010986328125,
        "lon": 129.0714447999999947569449432194232940673828125
    },
    "bbox": {
        "min_lat": 35.027046699999999646024662069976329803466796875,
        "min_lon": 129.067873300000002245724317617714405059814453125,
        "max_lat": 35.0290432999999978846972226165235042572021484375,
        "max_lon": 129.072611700000010159783414565026760101318359375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 18:15 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 17 AIS positions
  • Period: 2026-07-18T18:45:07+00:00 to 2026-07-19T01:15:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-07-18T18:45:07+00:00",
        "lat": 35.02747000000000099362296168692409992218017578125,
        "lon": 129.072611700000010159783414565026760101318359375
    },
    "last_point": {
        "ts": "2026-07-19T01:15:11+00:00",
        "lat": 35.0290432999999978846972226165235042572021484375,
        "lon": 129.069854999999989786374499090015888214111328125
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 18, 2026 17:03 UTC 75.0%
  • Duration: 6h 27m
  • Radius: 347 meters
  • Data Points: 19 AIS positions
  • Centroid: 35.0277, 129.0717
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 347,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 19,
    "centroid": {
        "lat": 35.02773747368422618819749914109706878662109375,
        "lon": 129.07166341578948731694254092872142791748046875
    },
    "bbox": {
        "min_lat": 35.027046699999999646024662069976329803466796875,
        "min_lon": 129.067873300000002245724317617714405059814453125,
        "max_lat": 35.02885669999999862511685932986438274383544921875,
        "max_lon": 129.072611700000010159783414565026760101318359375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 17:03 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 27m
  • Data Points: 19 AIS positions
  • Period: 2026-07-18T17:45:06+00:00 to 2026-07-19T00:12:09+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-07-18T17:45:06+00:00",
        "lat": 35.02711169999999896162989898584783077239990234375,
        "lon": 129.072273300000006202026270329952239990234375
    },
    "last_point": {
        "ts": "2026-07-19T00:12:09+00:00",
        "lat": 35.02885669999999862511685932986438274383544921875,
        "lon": 129.069555000000008249116945080459117889404296875
    }
}

Methodology: 2026.01.18

Sts Strait of Gibraltar Surveillance Zone Jul 18, 2026 17:03 UTC 85/100
Vessel A: IMO 9281176 (WOOWONHO) REPUBLIC OF KOREA
Vessel B: PHOENIX (PHOENIX) RUSSIA
  • Minimum Distance: 36 meters
  • Average Distance: 61 meters
  • Duration: 1h 29m
  • Period: 2026-07-18T17:21:43+00:00 to 2026-07-18T18:51:04+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 (WOOWONHO and PHOENIX) maintained close proximity (min 36m, avg 60m) for 89 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 36m, avg 60m
Duration15/25Duration 89 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±13m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 440400900,
        "imo": 9281176,
        "name": "WOOWONHO",
        "flag": "REPUBLIC OF KOREA"
    },
    "vessel_b": {
        "mmsi": 273270560,
        "imo": 9332810,
        "name": "PHOENIX",
        "flag": "RUSSIA"
    },
    "min_distance_m": 36.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 60.5,
    "distance_consistency_m": 12.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 89.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 5361,
    "speed_a_avg": 0.179999999999999993338661852249060757458209991455078125,
    "speed_a_std": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_b_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.179999999999999993338661852249060757458209991455078125,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-18T17:21:43+00:00",
        "end": "2026-07-18T18:51:04+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 36m, avg 60m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 89 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b113m"
            },
            "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 (WOOWONHO and PHOENIX) maintained close proximity (min 36m, avg 60m) for 89 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 18, 2026 16:09 UTC 75.0%
  • Duration: 6h 30m
  • Radius: 381 meters
  • Data Points: 26 AIS positions
  • Centroid: 35.0273, 129.0720
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 380.5,
    "duration_minutes": 390,
    "points": 26,
    "centroid": {
        "lat": 35.02732405384615077537091565318405628204345703125,
        "lon": 129.07196352307693132388521917164325714111328125
    },
    "bbox": {
        "min_lat": 35.0264116999999970403223414905369281768798828125,
        "min_lon": 129.067873300000002245724317617714405059814453125,
        "max_lat": 35.02828170000000085337887867353856563568115234375,
        "max_lon": 129.072665000000000645741238258779048919677734375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 16:09 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 26 AIS positions
  • Period: 2026-07-18T16:42:08+00:00 to 2026-07-18T23:12:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-07-18T16:42:08+00:00",
        "lat": 35.0265016999999971858414937742054462432861328125,
        "lon": 129.07224999999999681676854379475116729736328125
    },
    "last_point": {
        "ts": "2026-07-18T23:12:06+00:00",
        "lat": 35.027991700000001173975761048495769500732421875,
        "lon": 129.067873300000002245724317617714405059814453125
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 18, 2026 14:03 UTC 75.0%
  • Duration: 6h 15m
  • Radius: 87 meters
  • Data Points: 28 AIS positions
  • Centroid: 35.0272, 129.0724
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 86.7000000000000028421709430404007434844970703125,
    "duration_minutes": 375.1000000000000227373675443232059478759765625,
    "points": 28,
    "centroid": {
        "lat": 35.02715625714285607728015747852623462677001953125,
        "lon": 129.072372674999968467091093771159648895263671875
    },
    "bbox": {
        "min_lat": 35.0264116999999970403223414905369281768798828125,
        "min_lon": 129.07202499999999645297066308557987213134765625,
        "max_lat": 35.0279349999999993769961292855441570281982421875,
        "max_lon": 129.072665000000000645741238258779048919677734375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 14:03 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 15m
  • Data Points: 28 AIS positions
  • Period: 2026-07-18T14:39:06+00:00 to 2026-07-18T20:54:09+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 375.1000000000000227373675443232059478759765625,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-07-18T14:39:06+00:00",
        "lat": 35.02770170000000149457264342345297336578369140625,
        "lon": 129.072444999999987658156896941363811492919921875
    },
    "last_point": {
        "ts": "2026-07-18T20:54:09+00:00",
        "lat": 35.02734000000000236241248785518109798431396484375,
        "lon": 129.07233830000001262305886484682559967041015625
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 18, 2026 13:00 UTC 75.0%
  • Duration: 6h 21m
  • Radius: 230 meters
  • Data Points: 30 AIS positions
  • Centroid: 35.0274, 129.0722
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 229.900000000000005684341886080801486968994140625,
    "duration_minutes": 381,
    "points": 30,
    "centroid": {
        "lat": 35.02736144999999368110366049222648143768310546875,
        "lon": 129.072213163333316288117202930152416229248046875
    },
    "bbox": {
        "min_lat": 35.0264116999999970403223414905369281768798828125,
        "min_lon": 129.070521700000000464569893665611743927001953125,
        "max_lat": 35.02889669999999711080818087793886661529541015625,
        "max_lon": 129.072665000000000645741238258779048919677734375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 13:00 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 21m
  • Data Points: 30 AIS positions
  • Period: 2026-07-18T13:39:08+00:00 to 2026-07-18T20:00:09+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 381,
    "points_in_zone": 30,
    "first_point": {
        "ts": "2026-07-18T13:39:08+00:00",
        "lat": 35.02889669999999711080818087793886661529541015625,
        "lon": 129.070521700000000464569893665611743927001953125
    },
    "last_point": {
        "ts": "2026-07-18T20:00:09+00:00",
        "lat": 35.02782330000000143854776979424059391021728515625,
        "lon": 129.07202499999999645297066308557987213134765625
    }
}

Methodology: 2026.01.18

Loiter Strait of Gibraltar Surveillance Zone Jul 18, 2026 12:06 UTC 75.0%
  • Duration: 6h 32m
  • Radius: 687 meters
  • Data Points: 30 AIS positions
  • Centroid: 35.0272, 129.0709
  • Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
    "radius_m": 687.299999999999954525264911353588104248046875,
    "duration_minutes": 392.3999999999999772626324556767940521240234375,
    "points": 30,
    "centroid": {
        "lat": 35.02724972666667468956802622415125370025634765625,
        "lon": 129.070925386666630174659076146781444549560546875
    },
    "bbox": {
        "min_lat": 35.0229700000000008230927051045000553131103515625,
        "min_lon": 129.063463299999995115285855717957019805908203125,
        "max_lat": 35.029144999999999754436430521309375762939453125,
        "max_lon": 129.072665000000000645741238258779048919677734375
    },
    "zone_id": "discovered_001"
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 12:01 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 32m
  • Data Points: 30 AIS positions
  • Period: 2026-07-18T12:12:41+00:00 to 2026-07-18T18:45:07+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 392.3999999999999772626324556767940521240234375,
    "points_in_zone": 30,
    "first_point": {
        "ts": "2026-07-18T12:12:41+00:00",
        "lat": 35.0229700000000008230927051045000553131103515625,
        "lon": 129.06941829999999526989995501935482025146484375
    },
    "last_point": {
        "ts": "2026-07-18T18:45:07+00:00",
        "lat": 35.02747000000000099362296168692409992218017578125,
        "lon": 129.072611700000010159783414565026760101318359375
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 11:02 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 33 AIS positions
  • Period: 2026-07-18T11:50:40+00:00 to 2026-07-18T18:21:07+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 390.3999999999999772626324556767940521240234375,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-07-18T11:50:40+00:00",
        "lat": 35.01174329999999912388375378213822841644287109375,
        "lon": 129.0996049999999968349584378302097320556640625
    },
    "last_point": {
        "ts": "2026-07-18T18:21:07+00:00",
        "lat": 35.0279349999999993769961292855441570281982421875,
        "lon": 129.07229169999999385254341177642345428466796875
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 10:01 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 31m
  • Data Points: 39 AIS positions
  • Period: 2026-07-18T10:55:31+00:00 to 2026-07-18T17:27:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 391.6000000000000227373675443232059478759765625,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-07-18T10:55:31+00:00",
        "lat": 34.97730829999999713209035689942538738250732421875,
        "lon": 129.213858299999998280327417887747287750244140625
    },
    "last_point": {
        "ts": "2026-07-18T17:27:06+00:00",
        "lat": 35.0268099999999975580067257396876811981201171875,
        "lon": 129.072665000000000645741238258779048919677734375
    }
}

Methodology: 2026.01.18

Zone Dwell Strait of Gibraltar Surveillance Zone Jul 18, 2026 09:01 UTC 80.0%
  • Zone: Strait of Gibraltar Surveillance Zone
  • Duration: 6h 30m
  • Data Points: 42 AIS positions
  • Period: 2026-07-18T09:41:20+00:00 to 2026-07-18T16:12:09+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_001",
    "zone_name": "Strait of Gibraltar Surveillance Zone",
    "dwell_minutes": 390.80000000000001136868377216160297393798828125,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-07-18T09:41:20+00:00",
        "lat": 34.94383169999999694255166104994714260101318359375,
        "lon": 129.26415170000001353400875814259052276611328125
    },
    "last_point": {
        "ts": "2026-07-18T16:12:09+00:00",
        "lat": 35.02682329999999666370058548636734485626220703125,
        "lon": 129.072558299999997188933775760233402252197265625
    }
}

Methodology: 2026.01.18

Zone Dwell Archipelago Sea Sanction Zone Jul 18, 2026 09:01 UTC 80.0%
  • Zone: Archipelago Sea Sanction Zone
  • Duration: 1h 35m
  • Data Points: 17 AIS positions
  • Period: 2026-07-18T09:01:20+00:00 to 2026-07-18T10:36:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_002",
    "zone_name": "Archipelago Sea Sanction Zone",
    "dwell_minutes": 95,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-07-18T09:01:20+00:00",
        "lat": 34.9336966999999987137925927527248859405517578125,
        "lon": 129.25434500000000070940586738288402557373046875
    },
    "last_point": {
        "ts": "2026-07-18T10:36:22+00:00",
        "lat": 34.954481700000002319939085282385349273681640625,
        "lon": 129.251479999999986603143042884767055511474609375
    }
}

Methodology: 2026.01.18

Source snapshot

SanctionerAs ofEntity ID
🇬🇧 UK2025-09-299332810

We mirror official lists; always verify at the source.

Sanctioned on the same day

  • AMULET · IMO 9413547 🇨🇦 CA🇪🇺 EU🇳🇿 NZ🇬🇧 UK
  • ARCADIA · IMO 9413573 🇨🇦 CA🇪🇺 EU🇳🇿 NZ🇬🇧 UK🇺🇸 US
  • AURO · IMO 9288708 🇨🇦 CA🇪🇺 EU🇬🇧 UK
  • AZORIN · IMO 9285859 🇨🇦 CA🇪🇺 EU🇳🇿 NZ🇬🇧 UK
  • BARQ · IMO 9321691 🇨🇦 CA🇪🇺 EU🇳🇿 NZ🇬🇧 UK
  • BOBCAT · IMO 9422457 🇨🇦 CA🇪🇺 EU🇳🇿 NZ🇬🇧 UK
  • BOND · IMO 9412335 🇨🇦 CA🇪🇺 EU🇬🇧 UK🇺🇸 US
  • CELT · IMO 9299692 🇨🇦 CA🇪🇺 EU🇳🇿 NZ🇬🇧 UK🇺🇸 US