Vessel information
Detected Events (11)
- Minimum Distance: 38 meters
- Average Distance: 47 meters
- Duration: 1h 18m
- Period: 2026-07-28T15:06:55+00:00 to 2026-07-28T16:24:54+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.1 knots
- Zone: Strait of Gibraltar Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (ROMANCE and JUNG WOO 1) maintained close proximity (min 38m, avg 46m) for 78 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 38m, avg 46m |
| Duration | 15/25 | Duration 78 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±5m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Strait of Gibraltar Surveillance Zone |
🛰️ Satellite Corroboration
No satellite imagery for this time/location
No Sentinel-1 scenes covering AOI and time window
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 352005202,
"imo": 9468815,
"name": "ROMANCE",
"flag": "PANAMA"
},
"vessel_b": {
"mmsi": 440135930,
"name": "JUNG WOO 1",
"flag": "REPUBLIC OF KOREA"
},
"min_distance_m": 38.2000000000000028421709430404007434844970703125,
"avg_distance_m": 46.5,
"distance_consistency_m": 4.70000000000000017763568394002504646778106689453125,
"duration_minutes": 78,
"overlap_duration_s": 4679,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.13000000000000000444089209850062616169452667236328125,
"speed_b_std": 0.0899999999999999966693309261245303787291049957275390625,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.13000000000000000444089209850062616169452667236328125,
"max_sog": 0.299999999999999988897769753748434595763683319091796875
}
},
"time_window": {
"start": "2026-07-28T15:06:55+00:00",
"end": "2026-07-28T16:24:54+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 38m, avg 46m"
},
"duration": {
"score": 15,
"max": 25,
"detail": "Duration 78 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 (ROMANCE and JUNG WOO 1) maintained close proximity (min 38m, avg 46m) for 78 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 35.0096048999999993611709214746952056884765625,
"lon": 129.05288139999998975326889194548130035400390625
},
"time_window": {
"start_ts": "2026-07-28T15:01:33+00:00",
"end_ts": "2026-07-28T16:24:54+00:00"
},
"searched_at": "2026-07-28T21:45:01.566660+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Strait of Gibraltar Surveillance Zone
- Duration: 1h 45m
- Data Points: 24 AIS positions
- Period: 2026-07-28T15:01:33+00:00 to 2026-07-28T16:47:22+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_001",
"zone_name": "Strait of Gibraltar Surveillance Zone",
"dwell_minutes": 105.7999999999999971578290569595992565155029296875,
"points_in_zone": 24,
"first_point": {
"ts": "2026-07-28T15:01:33+00:00",
"lat": 35.009444999999999481588019989430904388427734375,
"lon": 129.052588299999996479527908377349376678466796875
},
"last_point": {
"ts": "2026-07-28T16:47:22+00:00",
"lat": 35.025069999999999481588019989430904388427734375,
"lon": 129.04473169999999981882865540683269500732421875
}
}- Duration: 1h 42m
- Radius: 932 meters
- Data Points: 22 AIS positions
- Centroid: 35.0098, 129.0524
- Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 931.8999999999999772626324556767940521240234375,
"duration_minutes": 102.7999999999999971578290569595992565155029296875,
"points": 22,
"centroid": {
"lat": 35.00982695909090836039467831142246723175048828125,
"lon": 129.0523709818181714581442065536975860595703125
},
"bbox": {
"min_lat": 35.00897830000000254813130595721304416656494140625,
"min_lon": 129.0475083000000040556187741458415985107421875,
"max_lat": 35.01721330000000165227902471087872982025146484375,
"max_lon": 129.05274170000001277003320865333080291748046875
},
"zone_id": "discovered_001"
}- Minimum Distance: 38 meters
- Average Distance: 48 meters
- Duration: 1h 48m
- Period: 2026-07-28T14:36:50+00:00 to 2026-07-28T16:24:54+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.1 knots
- Zone: Strait of Gibraltar Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (ROMANCE and JUNG WOO 1) maintained close proximity (min 38m, avg 48m) for 108 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 38m, avg 48m |
| Duration | 20/25 | Duration 108 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±6m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Strait of Gibraltar Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 352005202,
"imo": 9468815,
"name": "ROMANCE",
"flag": "PANAMA"
},
"vessel_b": {
"mmsi": 440135930,
"name": "JUNG WOO 1",
"flag": "REPUBLIC OF KOREA"
},
"min_distance_m": 38.2000000000000028421709430404007434844970703125,
"avg_distance_m": 48.2999999999999971578290569595992565155029296875,
"distance_consistency_m": 6,
"duration_minutes": 108.099999999999994315658113919198513031005859375,
"overlap_duration_s": 6484,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0.11999999999999999555910790149937383830547332763671875,
"speed_b_std": 0.08000000000000000166533453693773481063544750213623046875,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0.11999999999999999555910790149937383830547332763671875,
"max_sog": 0.299999999999999988897769753748434595763683319091796875
}
},
"time_window": {
"start": "2026-07-28T14:36:50+00:00",
"end": "2026-07-28T16:24:54+00:00"
},
"points_count": {
"vessel_a": 12,
"vessel_b": 12
},
"zone_id": "discovered_001",
"zone_name": "Strait of Gibraltar Surveillance Zone",
"score": {
"value": 90,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 38m, avg 48m"
},
"duration": {
"score": 20,
"max": 25,
"detail": "Duration 108 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \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 (ROMANCE and JUNG WOO 1) maintained close proximity (min 38m, avg 48m) for 108 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
}
}- Zone: Strait of Gibraltar Surveillance Zone
- Duration: 2h 43m
- Data Points: 28 AIS positions
- Period: 2026-07-28T14:03:32+00:00 to 2026-07-28T16:47:22+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_001",
"zone_name": "Strait of Gibraltar Surveillance Zone",
"dwell_minutes": 163.80000000000001136868377216160297393798828125,
"points_in_zone": 28,
"first_point": {
"ts": "2026-07-28T14:03:32+00:00",
"lat": 35.01006170000000139452822622843086719512939453125,
"lon": 129.052580000000006066329660825431346893310546875
},
"last_point": {
"ts": "2026-07-28T16:47:22+00:00",
"lat": 35.025069999999999481588019989430904388427734375,
"lon": 129.04473169999999981882865540683269500732421875
}
}- Duration: 2h 40m
- Radius: 932 meters
- Data Points: 26 AIS positions
- Centroid: 35.0098, 129.0524
- Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 932.299999999999954525264911353588104248046875,
"duration_minutes": 160.80000000000001136868377216160297393798828125,
"points": 26,
"centroid": {
"lat": 35.0098380038461556296169874258339405059814453125,
"lon": 129.05240486923077014580485410988330841064453125
},
"bbox": {
"min_lat": 35.00897830000000254813130595721304416656494140625,
"min_lon": 129.0475083000000040556187741458415985107421875,
"max_lat": 35.01721330000000165227902471087872982025146484375,
"max_lon": 129.05274170000001277003320865333080291748046875
},
"zone_id": "discovered_001"
}- Minimum Distance: 41 meters
- Average Distance: 48 meters
- Duration: 2h 6m
- Period: 2026-07-28T13:36:51+00:00 to 2026-07-28T15:43:32+00:00
- Vessel A Avg Speed: 0.1 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Strait of Gibraltar Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (JUNG WOO 1 and ROMANCE) maintained close proximity (min 41m, avg 48m) for 127 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 41m, avg 48m |
| Duration | 25/25 | Duration 127 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±5m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Strait of Gibraltar Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 440135930,
"name": "JUNG WOO 1",
"flag": "REPUBLIC OF KOREA"
},
"vessel_b": {
"mmsi": 352005202,
"imo": 9468815,
"name": "ROMANCE",
"flag": "PANAMA"
},
"min_distance_m": 40.7000000000000028421709430404007434844970703125,
"avg_distance_m": 47.60000000000000142108547152020037174224853515625,
"distance_consistency_m": 5.0999999999999996447286321199499070644378662109375,
"duration_minutes": 126.7000000000000028421709430404007434844970703125,
"overlap_duration_s": 7601,
"speed_a_avg": 0.0899999999999999966693309261245303787291049957275390625,
"speed_a_std": 0.070000000000000006661338147750939242541790008544921875,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
"max_sog": 0.200000000000000011102230246251565404236316680908203125
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-07-28T13:36:51+00:00",
"end": "2026-07-28T15:43:32+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 41m, avg 48m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 127 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 (JUNG WOO 1 and ROMANCE) maintained close proximity (min 41m, avg 48m) for 127 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Strait of Gibraltar Surveillance Zone, a known STS activity area."
}
}- Duration: 3h 32m
- Radius: 918 meters
- Data Points: 30 AIS positions
- Centroid: 35.0101, 129.0526
- Zone: Strait of Gibraltar Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 918,
"duration_minutes": 212.5,
"points": 30,
"centroid": {
"lat": 35.01005977000000513044142280705273151397705078125,
"lon": 129.05256366333333062357269227504730224609375
},
"bbox": {
"min_lat": 35.00897830000000254813130595721304416656494140625,
"min_lon": 129.0475083000000040556187741458415985107421875,
"max_lat": 35.01721330000000165227902471087872982025146484375,
"max_lon": 129.05466999999998733983375132083892822265625
},
"zone_id": "discovered_001"
}- Zone: Strait of Gibraltar Surveillance Zone
- Duration: 3h 43m
- Data Points: 35 AIS positions
- Period: 2026-07-28T13:03:52+00:00 to 2026-07-28T16:47:22+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_001",
"zone_name": "Strait of Gibraltar Surveillance Zone",
"dwell_minutes": 223.5,
"points_in_zone": 35,
"first_point": {
"ts": "2026-07-28T13:03:52+00:00",
"lat": 35.0299432999999993398887454532086849212646484375,
"lon": 129.046619999999990113792591728270053863525390625
},
"last_point": {
"ts": "2026-07-28T16:47:22+00:00",
"lat": 35.025069999999999481588019989430904388427734375,
"lon": 129.04473169999999981882865540683269500732421875
}
}- Gap Duration: 4h 53m
- Last Seen: 2026-07-19T16:44:07+00:00 at 35.0163, 128.9726 (Zone: Strait of Gibraltar Surveillance Zone)
- Next Seen: 2026-07-19T21:37:06+00:00 at 35.0003, 128.8990
🛰️ Gap Corroboration
These are snapshots that may corroborate presence during the gap. They do not reconstruct a continuous route.
SAR Imagery (Sentinel-1)
Status: ✗ No SAR coverage
No Sentinel-1 scenes covering corridor and time window
VIIRS Thermal Anomaly
Status: ✗ No detections
No VIIRS thermal/light detections in corridor
Show Raw Evidence JSON
{
"gap_minutes": 293,
"last_seen": {
"ts": "2026-07-19T16:44:07+00:00",
"lat": 35.0162882999999993671735865063965320587158203125,
"lon": 128.97255000000001246007741428911685943603515625,
"sog": 8.5999999999999996447286321199499070644378662109375,
"zone_id": "discovered_001"
},
"next_seen": {
"ts": "2026-07-19T21:37:06+00:00",
"lat": 35.0003183000000035463017411530017852783203125,
"lon": 128.898956700000013597673387266695499420166015625,
"zone_ids": [
"discovered_001"
]
},
"gap_enrichment": {
"status": "not_found",
"corridor": {
"start": {
"lat": 35.0162882999999993671735865063965320587158203125,
"lon": 128.97255000000001246007741428911685943603515625,
"ts": "2026-07-19T16:44:07+00:00"
},
"end": {
"lat": 35.0003183000000035463017411530017852783203125,
"lon": 128.898956700000013597673387266695499420166015625,
"ts": "2026-07-19T21:37:06+00:00"
},
"bbox": {
"min_lat": 34.8201380000000000336513039655983448028564453125,
"min_lon": 128.678975000000008321876521222293376922607421875,
"max_lat": 35.19646800000000297359292744658887386322021484375,
"max_lon": 129.192531999999999925421434454619884490966796875
},
"buffer_km": 20
},
"sar": {
"status": "not_found",
"notes": "No Sentinel-1 scenes covering corridor and time window"
},
"viirs": {
"status": "not_found",
"notes": "No VIIRS thermal\/light detections in corridor"
},
"searched_at": "2026-07-19T21:45:01.524010+00:00"
}
}- Zone: Strait of Gibraltar Surveillance Zone
- Duration: 5h 35m
- Data Points: 8 AIS positions
- Period: 2026-07-19T16:32:28+00:00 to 2026-07-19T22:07:46+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_001",
"zone_name": "Strait of Gibraltar Surveillance Zone",
"dwell_minutes": 335.30000000000001136868377216160297393798828125,
"points_in_zone": 8,
"first_point": {
"ts": "2026-07-19T16:32:28+00:00",
"lat": 35.0274016999999986410330166108906269073486328125,
"lon": 129.00150830000001178632373921573162078857421875
},
"last_point": {
"ts": "2026-07-19T22:07:46+00:00",
"lat": 35.0303482999999999947249307297170162200927734375,
"lon": 128.9954582999999956882675178349018096923828125
}
}Recent Position Data
| Time (UTC) | Lat | Lon | Speed | Course | Zone |
|---|---|---|---|---|---|
| Jul 28 16:47 | 35.0251 | 129.0447 | 9.5 kn | 343.1° | Strait of Gibraltar Surveillance Zone |
| Jul 28 16:46 | 35.0225 | 129.0456 | 9.6 kn | 344.2° | Strait of Gibraltar Surveillance Zone |
| Jul 28 16:44 | 35.0172 | 129.0475 | 9.7 kn | 339.1° | Strait of Gibraltar Surveillance Zone |
| Jul 28 16:41 | 35.0090 | 129.0507 | 7.0 kn | 293.7° | Strait of Gibraltar Surveillance Zone |
| Jul 28 16:29 | 35.0095 | 129.0527 | 0.2 kn | 157.3° | Strait of Gibraltar Surveillance Zone |
| Jul 28 16:22 | 35.0096 | 129.0527 | 0.3 kn | 350.0° | Strait of Gibraltar Surveillance Zone |
| Jul 28 16:17 | 35.0096 | 129.0527 | 0.1 kn | 220.3° | Strait of Gibraltar Surveillance Zone |
| Jul 28 16:14 | 35.0096 | 129.0527 | 0.4 kn | 347.9° | Strait of Gibraltar Surveillance Zone |
| Jul 28 16:05 | 35.0095 | 129.0527 | 0.2 kn | 2.7° | Strait of Gibraltar Surveillance Zone |
| Jul 28 16:01 | 35.0095 | 129.0527 | 0.3 kn | 191.0° | Strait of Gibraltar Surveillance Zone |
| Jul 28 15:59 | 35.0096 | 129.0527 | 0.1 kn | 40.6° | Strait of Gibraltar Surveillance Zone |
| Jul 28 15:54 | 35.0095 | 129.0527 | 0.1 kn | 324.5° | Strait of Gibraltar Surveillance Zone |
| Jul 28 15:52 | 35.0095 | 129.0527 | 0.1 kn | 31.1° | Strait of Gibraltar Surveillance Zone |
| Jul 28 15:50 | 35.0095 | 129.0527 | 0.1 kn | 150.2° | Strait of Gibraltar Surveillance Zone |
| Jul 28 15:43 | 35.0095 | 129.0527 | 0.0 kn | 225.7° | Strait of Gibraltar Surveillance Zone |
| Jul 28 15:40 | 35.0095 | 129.0527 | 0.1 kn | 83.1° | Strait of Gibraltar Surveillance Zone |
| Jul 28 15:31 | 35.0094 | 129.0527 | 0.2 kn | 196.4° | Strait of Gibraltar Surveillance Zone |
| Jul 28 15:25 | 35.0094 | 129.0527 | 0.1 kn | 171.6° | Strait of Gibraltar Surveillance Zone |
| Jul 28 15:22 | 35.0095 | 129.0527 | 0.2 kn | 349.7° | Strait of Gibraltar Surveillance Zone |
| Jul 28 15:18 | 35.0095 | 129.0527 | 0.0 kn | 100.0° | Strait of Gibraltar Surveillance Zone |
Showing 20 of 35 recent positions.
Data Source
Vessel observed through FleetLeaks' AIS monitoring system in zones of interest. Identity and position data derived from AIS broadcasts and public maritime databases.
Disclaimer: AIS data can be spoofed or falsified. Vessel identities should be independently verified before making compliance decisions.
