IMO 9973913
Vessel information
Detected Events (100)
- Minimum Distance: 323 meters
- Average Distance: 325 meters
- Duration: 57 minutes
- Period: 2026-11-01T11:08:36+00:00 to 2026-11-01T12:05:36+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (CHEM RANGER and NAVIG8 EXCEED) maintained close proximity (min 323m, avg 325m) for 57 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 323m, avg 325m |
| Duration | 10/25 | Duration 57 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"vessel_b": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"min_distance_m": 322.69999999999998863131622783839702606201171875,
"avg_distance_m": 324.80000000000001136868377216160297393798828125,
"distance_consistency_m": 2.5,
"duration_minutes": 57,
"overlap_duration_s": 3420,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T11:08:36+00:00",
"end": "2026-11-01T12:05:36+00:00"
},
"points_count": {
"vessel_a": 5,
"vessel_b": 5
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 65,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 323m, avg 325m"
},
"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 \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (CHEM RANGER and NAVIG8 EXCEED) maintained close proximity (min 323m, avg 325m) for 57 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
}
}- Minimum Distance: 308 meters
- Average Distance: 309 meters
- Duration: 1h 39m
- Period: 2026-11-01T10:32:59+00:00 to 2026-11-01T12:11:58+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (YELLOW STARS and NAVIG8 EXCEED) maintained close proximity (min 308m, avg 309m) for 99 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 308m, avg 309m |
| Duration | 20/25 | Duration 99 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±1m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 538009099,
"imo": 9913626,
"name": "YELLOW STARS",
"flag": "MARSHALL ISLANDS"
},
"vessel_b": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"min_distance_m": 307.80000000000001136868377216160297393798828125,
"avg_distance_m": 309,
"distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
"duration_minutes": 99,
"overlap_duration_s": 5939,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T10:32:59+00:00",
"end": "2026-11-01T12:11:58+00:00"
},
"points_count": {
"vessel_a": 3,
"vessel_b": 3
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 75,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 308m, avg 309m"
},
"duration": {
"score": 20,
"max": 25,
"detail": "Duration 99 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b11m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (YELLOW STARS and NAVIG8 EXCEED) maintained close proximity (min 308m, avg 309m) for 99 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
}
}- Minimum Distance: 307 meters
- Average Distance: 309 meters
- Duration: 51 minutes
- Period: 2026-11-01T08:05:57+00:00 to 2026-11-01T08:56:56+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (YELLOW STARS and NAVIG8 EXCEED) maintained close proximity (min 307m, avg 309m) for 51 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 307m, avg 309m |
| Duration | 10/25 | Duration 51 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 538009099,
"imo": 9913626,
"name": "YELLOW STARS",
"flag": "MARSHALL ISLANDS"
},
"vessel_b": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"min_distance_m": 307,
"avg_distance_m": 309.19999999999998863131622783839702606201171875,
"distance_consistency_m": 2.399999999999999911182158029987476766109466552734375,
"duration_minutes": 51,
"overlap_duration_s": 3059,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T08:05:57+00:00",
"end": "2026-11-01T08:56:56+00:00"
},
"points_count": {
"vessel_a": 7,
"vessel_b": 7
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 65,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 307m, avg 309m"
},
"duration": {
"score": 10,
"max": 25,
"detail": "Duration 51 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (YELLOW STARS and NAVIG8 EXCEED) maintained close proximity (min 307m, avg 309m) for 51 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
}
}- Minimum Distance: 308 meters
- Average Distance: 310 meters
- Duration: 2h 33m
- Period: 2026-11-01T07:59:02+00:00 to 2026-11-01T10:32:05+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and YELLOW STARS) maintained close proximity (min 308m, avg 310m) for 153 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 308m, avg 310m |
| Duration | 25/25 | Duration 153 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±3m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538009099,
"imo": 9913626,
"name": "YELLOW STARS",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 307.5,
"avg_distance_m": 309.8999999999999772626324556767940521240234375,
"distance_consistency_m": 2.600000000000000088817841970012523233890533447265625,
"duration_minutes": 153.099999999999994315658113919198513031005859375,
"overlap_duration_s": 9183,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T07:59:02+00:00",
"end": "2026-11-01T10:32:05+00:00"
},
"points_count": {
"vessel_a": 5,
"vessel_b": 5
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 308m, avg 310m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 153 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: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and YELLOW STARS) maintained close proximity (min 308m, avg 310m) for 153 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
}
}- Minimum Distance: 322 meters
- Average Distance: 327 meters
- Duration: 3h 27m
- Period: 2026-11-01T07:04:59+00:00 to 2026-11-01T10:32:05+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 327m) for 207 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 322m, avg 327m |
| Duration | 25/25 | Duration 207 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±3m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 321.69999999999998863131622783839702606201171875,
"avg_distance_m": 327.1000000000000227373675443232059478759765625,
"distance_consistency_m": 2.899999999999999911182158029987476766109466552734375,
"duration_minutes": 207.099999999999994315658113919198513031005859375,
"overlap_duration_s": 12426,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T07:04:59+00:00",
"end": "2026-11-01T10:32:05+00:00"
},
"points_count": {
"vessel_a": 6,
"vessel_b": 6
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 322m, avg 327m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 207 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: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 327m) for 207 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.7089165000000008376446203328669071197509765625,
"lon": 33.32160830000000117934177978895604610443115234375
},
"time_window": {
"start_ts": "2026-11-01T07:04:59+00:00",
"end_ts": "2026-11-01T10:32:05+00:00"
},
"searched_at": "2026-11-01T13:15:01.607028+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Eastern Mediterranean Monitoring Zone
- Duration: 5h 30m
- Data Points: 13 AIS positions
- Period: 2026-11-01T07:04:59+00:00 to 2026-11-01T12:34:58+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 330,
"points_in_zone": 13,
"first_point": {
"ts": "2026-11-01T07:04:59+00:00",
"lat": 34.707678299999997761915437877178192138671875,
"lon": 33.32058169999999819310687598772346973419189453125
},
"last_point": {
"ts": "2026-11-01T12:34:58+00:00",
"lat": 34.7076933000000025231202016584575176239013671875,
"lon": 33.32060830000000350992195308208465576171875
}
}- Duration: 5h 30m
- Radius: 4 meters
- Data Points: 13 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 3.79999999999999982236431605997495353221893310546875,
"duration_minutes": 330,
"points": 13,
"centroid": {
"lat": 34.707705515384617456220439635217189788818359375,
"lon": 33.3206005076923048591197584755718708038330078125
},
"bbox": {
"min_lat": 34.707678299999997761915437877178192138671875,
"min_lon": 33.3205600000000004001776687800884246826171875,
"max_lat": 34.70773669999999810897861607372760772705078125,
"max_lon": 33.32062330000000116569935926236212253570556640625
},
"zone_id": "discovered_037"
}- Minimum Distance: 322 meters
- Average Distance: 327 meters
- Duration: 3h 45m
- Period: 2026-11-01T06:46:58+00:00 to 2026-11-01T10:32:05+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 327m) for 225 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 322m, avg 327m |
| Duration | 25/25 | Duration 225 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±3m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 321.69999999999998863131622783839702606201171875,
"avg_distance_m": 326.8999999999999772626324556767940521240234375,
"distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
"duration_minutes": 225.099999999999994315658113919198513031005859375,
"overlap_duration_s": 13507,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T06:46:58+00:00",
"end": "2026-11-01T10:32:05+00:00"
},
"points_count": {
"vessel_a": 7,
"vessel_b": 7
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 322m, avg 327m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 225 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: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 327m) for 225 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
}
}- Zone: Eastern Mediterranean Monitoring Zone
- Duration: 5h 48m
- Data Points: 14 AIS positions
- Period: 2026-11-01T06:46:58+00:00 to 2026-11-01T12:34:58+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 348,
"points_in_zone": 14,
"first_point": {
"ts": "2026-11-01T06:46:58+00:00",
"lat": 34.70767000000000024328983272425830364227294921875,
"lon": 33.32056999999999646888682036660611629486083984375
},
"last_point": {
"ts": "2026-11-01T12:34:58+00:00",
"lat": 34.7076933000000025231202016584575176239013671875,
"lon": 33.32060830000000350992195308208465576171875
}
}- Duration: 5h 48m
- Radius: 5 meters
- Data Points: 14 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 4.5,
"duration_minutes": 348,
"points": 14,
"centroid": {
"lat": 34.70770297857142594466495211236178874969482421875,
"lon": 33.32059832857142822604146203957498073577880859375
},
"bbox": {
"min_lat": 34.70767000000000024328983272425830364227294921875,
"min_lon": 33.3205600000000004001776687800884246826171875,
"max_lat": 34.70773669999999810897861607372760772705078125,
"max_lon": 33.32062330000000116569935926236212253570556640625
},
"zone_id": "discovered_037"
}- Minimum Distance: 75 meters
- Average Distance: 76 meters
- Duration: 30 minutes
- Period: 2026-11-01T06:43:42+00:00 to 2026-11-01T07:13:43+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (TWINKLE STAR and NAVIG8 EXCEED) maintained close proximity (min 75m, avg 76m) for 30 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 75m, avg 76m |
| Duration | 5/25 | Duration 30 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±0m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring 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": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"vessel_b": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"min_distance_m": 75.2999999999999971578290569595992565155029296875,
"avg_distance_m": 75.5,
"distance_consistency_m": 0.200000000000000011102230246251565404236316680908203125,
"duration_minutes": 30,
"overlap_duration_s": 1801,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T06:43:42+00:00",
"end": "2026-11-01T07:13:43+00:00"
},
"points_count": {
"vessel_a": 2,
"vessel_b": 2
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 75,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 75m, avg 76m"
},
"duration": {
"score": 5,
"max": 25,
"detail": "Duration 30 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b10m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (TWINKLE STAR and NAVIG8 EXCEED) maintained close proximity (min 75m, avg 76m) for 30 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.70789959999999751971699879504740238189697265625,
"lon": 33.320267499999999927240423858165740966796875
},
"time_window": {
"start_ts": "2026-11-01T06:43:42+00:00",
"end_ts": "2026-11-01T07:13:43+00:00"
},
"searched_at": "2026-11-01T08:15:13.873177+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Minimum Distance: 322 meters
- Average Distance: 327 meters
- Duration: 5h 21m
- Period: 2026-11-01T05:11:00+00:00 to 2026-11-01T10:32:05+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 327m) for 321 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 322m, avg 327m |
| Duration | 25/25 | Duration 321 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 321.69999999999998863131622783839702606201171875,
"avg_distance_m": 326.80000000000001136868377216160297393798828125,
"distance_consistency_m": 2.5,
"duration_minutes": 321.1000000000000227373675443232059478759765625,
"overlap_duration_s": 19265,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T05:11:00+00:00",
"end": "2026-11-01T10:32:05+00:00"
},
"points_count": {
"vessel_a": 8,
"vessel_b": 8
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 322m, avg 327m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 321 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 327m) for 321 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.7089126999999990630385582335293292999267578125,
"lon": 33.321598399999999173815012909471988677978515625
},
"time_window": {
"start_ts": "2026-11-01T05:11:00+00:00",
"end_ts": "2026-11-01T10:32:05+00:00"
},
"searched_at": "2026-11-01T11:45:01.476749+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Eastern Mediterranean Monitoring Zone
- Duration: 6h 33m
- Data Points: 13 AIS positions
- Period: 2026-11-01T05:04:59+00:00 to 2026-11-01T11:37:58+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 393,
"points_in_zone": 13,
"first_point": {
"ts": "2026-11-01T05:04:59+00:00",
"lat": 34.70771169999999727906470070593059062957763671875,
"lon": 33.3205650000000019872459233738481998443603515625
},
"last_point": {
"ts": "2026-11-01T11:37:58+00:00",
"lat": 34.70770329999999859182935324497520923614501953125,
"lon": 33.3206033000000019228536984883248805999755859375
}
}- Duration: 6h 33m
- Radius: 4 meters
- Data Points: 13 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 4.29999999999999982236431605997495353221893310546875,
"duration_minutes": 393,
"points": 13,
"centroid": {
"lat": 34.707705138461534488669713027775287628173828125,
"lon": 33.32058961538461261397969792596995830535888671875
},
"bbox": {
"min_lat": 34.70767000000000024328983272425830364227294921875,
"min_lon": 33.3205600000000004001776687800884246826171875,
"max_lat": 34.70773669999999810897861607372760772705078125,
"max_lon": 33.32061999999999812871465110220015048980712890625
},
"zone_id": "discovered_037"
}- Minimum Distance: 324 meters
- Average Distance: 325 meters
- Duration: 2h 6m
- Period: 2026-11-01T04:40:56+00:00 to 2026-11-01T06:46:58+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 324m, avg 325m) for 126 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 324m, avg 325m |
| Duration | 25/25 | Duration 126 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±1m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 323.6000000000000227373675443232059478759765625,
"avg_distance_m": 325.1000000000000227373675443232059478759765625,
"distance_consistency_m": 1,
"duration_minutes": 126,
"overlap_duration_s": 7562,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T04:40:56+00:00",
"end": "2026-11-01T06:46:58+00:00"
},
"points_count": {
"vessel_a": 6,
"vessel_b": 6
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 324m, avg 325m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 126 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b11m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 324m, avg 325m) for 126 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
}
}- Minimum Distance: 322 meters
- Average Distance: 326 meters
- Duration: 5h 51m
- Period: 2026-11-01T04:40:56+00:00 to 2026-11-01T10:32:05+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 326m) for 351 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 322m, avg 326m |
| Duration | 25/25 | Duration 351 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 321.69999999999998863131622783839702606201171875,
"avg_distance_m": 326.1000000000000227373675443232059478759765625,
"distance_consistency_m": 2.29999999999999982236431605997495353221893310546875,
"duration_minutes": 351.1000000000000227373675443232059478759765625,
"overlap_duration_s": 21069,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T04:40:56+00:00",
"end": "2026-11-01T10:32:05+00:00"
},
"points_count": {
"vessel_a": 12,
"vessel_b": 12
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 322m, avg 326m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 351 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 326m) for 351 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
}
}- Minimum Distance: 71 meters
- Average Distance: 72 meters
- Duration: 2h 54m
- Period: 2026-11-01T04:10:58+00:00 to 2026-11-01T07:04:59+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 71m, avg 72m) for 174 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 71m, avg 72m |
| Duration | 25/25 | Duration 174 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 70.599999999999994315658113919198513031005859375,
"avg_distance_m": 72.400000000000005684341886080801486968994140625,
"distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
"duration_minutes": 174,
"overlap_duration_s": 10441,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T04:10:58+00:00",
"end": "2026-11-01T07:04:59+00:00"
},
"points_count": {
"vessel_a": 9,
"vessel_b": 9
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 71m, avg 72m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 174 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 71m, avg 72m) for 174 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
}
}- Zone: Eastern Mediterranean Monitoring Zone
- Duration: 6h 36m
- Data Points: 13 AIS positions
- Period: 2026-11-01T04:52:54+00:00 to 2026-11-01T11:29:07+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 396.19999999999998863131622783839702606201171875,
"points_in_zone": 13,
"first_point": {
"ts": "2026-11-01T04:52:54+00:00",
"lat": 34.70770329999999859182935324497520923614501953125,
"lon": 33.3205650000000019872459233738481998443603515625
},
"last_point": {
"ts": "2026-11-01T11:29:07+00:00",
"lat": 34.7077067000000027974238037131726741790771484375,
"lon": 33.3206100000000020600054995156824588775634765625
}
}- Duration: 6h 36m
- Radius: 4 meters
- Data Points: 13 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 4.20000000000000017763568394002504646778106689453125,
"duration_minutes": 396.19999999999998863131622783839702606201171875,
"points": 13,
"centroid": {
"lat": 34.707705138461534488669713027775287628173828125,
"lon": 33.3205866692307637322301161475479602813720703125
},
"bbox": {
"min_lat": 34.70767000000000024328983272425830364227294921875,
"min_lon": 33.3205600000000004001776687800884246826171875,
"max_lat": 34.70773669999999810897861607372760772705078125,
"max_lon": 33.32061999999999812871465110220015048980712890625
},
"zone_id": "discovered_037"
}- Zone: Eastern Mediterranean Monitoring Zone
- Duration: 4h 51m
- Data Points: 15 AIS positions
- Period: 2026-11-01T03:58:58+00:00 to 2026-11-01T08:50:02+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 291.1000000000000227373675443232059478759765625,
"points_in_zone": 15,
"first_point": {
"ts": "2026-11-01T03:58:58+00:00",
"lat": 34.70771669999999886613295529969036579132080078125,
"lon": 33.32057669999999660603862139396369457244873046875
},
"last_point": {
"ts": "2026-11-01T08:50:02+00:00",
"lat": 34.7077316999999965219103614799678325653076171875,
"lon": 33.3206033000000019228536984883248805999755859375
}
}- Duration: 4h 51m
- Radius: 4 meters
- Data Points: 15 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 4.0999999999999996447286321199499070644378662109375,
"duration_minutes": 291.1000000000000227373675443232059478759765625,
"points": 15,
"centroid": {
"lat": 34.707706680000001142616383731365203857421875,
"lon": 33.32057255999999512141585000790655612945556640625
},
"bbox": {
"min_lat": 34.70767000000000024328983272425830364227294921875,
"min_lon": 33.3205482999999986759576131589710712432861328125,
"max_lat": 34.70773669999999810897861607372760772705078125,
"max_lon": 33.3206033000000019228536984883248805999755859375
},
"zone_id": "discovered_037"
}- Minimum Distance: 311 meters
- Average Distance: 313 meters
- Duration: 45 minutes
- Period: 2026-11-01T03:53:51+00:00 to 2026-11-01T04:38:58+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (YELLOW STARS and NAVIG8 EXCEED) maintained close proximity (min 310m, avg 313m) for 45 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 310m, avg 313m |
| Duration | 10/25 | Duration 45 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±3m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 538009099,
"imo": 9913626,
"name": "YELLOW STARS",
"flag": "MARSHALL ISLANDS"
},
"vessel_b": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"min_distance_m": 310.5,
"avg_distance_m": 313.1000000000000227373675443232059478759765625,
"distance_consistency_m": 2.600000000000000088817841970012523233890533447265625,
"duration_minutes": 45.10000000000000142108547152020037174224853515625,
"overlap_duration_s": 2707,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T03:53:51+00:00",
"end": "2026-11-01T04:38:58+00:00"
},
"points_count": {
"vessel_a": 3,
"vessel_b": 3
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 65,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 310m, avg 313m"
},
"duration": {
"score": 10,
"max": 25,
"detail": "Duration 45 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: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (YELLOW STARS and NAVIG8 EXCEED) maintained close proximity (min 310m, avg 313m) for 45 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.70870219999999761739672976545989513397216796875,
"lon": 33.3217556000000030280716600827872753143310546875
},
"time_window": {
"start_ts": "2026-11-01T03:53:51+00:00",
"end_ts": "2026-11-01T04:38:58+00:00"
},
"searched_at": "2026-11-01T05:45:01.973600+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Minimum Distance: 311 meters
- Average Distance: 313 meters
- Duration: 45 minutes
- Period: 2026-11-01T03:53:51+00:00 to 2026-11-01T04:38:58+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (YELLOW STARS and NAVIG8 EXCEED) maintained close proximity (min 310m, avg 313m) for 45 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 310m, avg 313m |
| Duration | 10/25 | Duration 45 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±3m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring 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": 538009099,
"imo": 9913626,
"name": "YELLOW STARS",
"flag": "MARSHALL ISLANDS"
},
"vessel_b": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"min_distance_m": 310.5,
"avg_distance_m": 313.1000000000000227373675443232059478759765625,
"distance_consistency_m": 2.600000000000000088817841970012523233890533447265625,
"duration_minutes": 45.10000000000000142108547152020037174224853515625,
"overlap_duration_s": 2707,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T03:53:51+00:00",
"end": "2026-11-01T04:38:58+00:00"
},
"points_count": {
"vessel_a": 3,
"vessel_b": 3
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 65,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 310m, avg 313m"
},
"duration": {
"score": 10,
"max": 25,
"detail": "Duration 45 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: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (YELLOW STARS and NAVIG8 EXCEED) maintained close proximity (min 310m, avg 313m) for 45 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.70870219999999761739672976545989513397216796875,
"lon": 33.3217556000000030280716600827872753143310546875
},
"time_window": {
"start_ts": "2026-11-01T03:53:51+00:00",
"end_ts": "2026-11-01T04:38:58+00:00"
},
"searched_at": "2026-11-01T08:15:18.908908+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Minimum Distance: 71 meters
- Average Distance: 71 meters
- Duration: 1h 15m
- Period: 2026-11-01T03:49:42+00:00 to 2026-11-01T05:04:47+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (TWINKLE STAR and NAVIG8 EXCEED) maintained close proximity (min 71m, avg 71m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 71m, avg 71m |
| Duration | 15/25 | Duration 75 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±0m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"vessel_b": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"min_distance_m": 70.599999999999994315658113919198513031005859375,
"avg_distance_m": 71.400000000000005684341886080801486968994140625,
"distance_consistency_m": 0.5,
"duration_minutes": 75.099999999999994315658113919198513031005859375,
"overlap_duration_s": 4505,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T03:49:42+00:00",
"end": "2026-11-01T05:04:47+00:00"
},
"points_count": {
"vessel_a": 9,
"vessel_b": 9
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 85,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 71m, avg 71m"
},
"duration": {
"score": 15,
"max": 25,
"detail": "Duration 75 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b10m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (TWINKLE STAR and NAVIG8 EXCEED) maintained close proximity (min 71m, avg 71m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
}
}- Minimum Distance: 70 meters
- Average Distance: 72 meters
- Duration: 3h 6m
- Period: 2026-11-01T03:58:58+00:00 to 2026-11-01T07:04:59+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 70m, avg 72m) for 186 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 70m, avg 72m |
| Duration | 25/25 | Duration 186 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 70.400000000000005684341886080801486968994140625,
"avg_distance_m": 72.099999999999994315658113919198513031005859375,
"distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
"duration_minutes": 186,
"overlap_duration_s": 11161,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T03:58:58+00:00",
"end": "2026-11-01T07:04:59+00:00"
},
"points_count": {
"vessel_a": 11,
"vessel_b": 11
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 70m, avg 72m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 186 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 70m, avg 72m) for 186 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
}
}- Minimum Distance: 70 meters
- Average Distance: 72 meters
- Duration: 4h 18m
- Period: 2026-11-01T02:46:55+00:00 to 2026-11-01T07:04:59+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Eastern Mediterranean Monitoring Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 70m, avg 72m) for 258 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 70m, avg 72m |
| Duration | 25/25 | Duration 258 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Eastern Mediterranean Monitoring 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 70.400000000000005684341886080801486968994140625,
"avg_distance_m": 72.2999999999999971578290569595992565155029296875,
"distance_consistency_m": 1.6999999999999999555910790149937383830547332763671875,
"duration_minutes": 258.1000000000000227373675443232059478759765625,
"overlap_duration_s": 15484,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T02:46:55+00:00",
"end": "2026-11-01T07:04:59+00:00"
},
"points_count": {
"vessel_a": 13,
"vessel_b": 13
},
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 70m, avg 72m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 258 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Eastern Mediterranean Monitoring Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 70m, avg 72m) for 258 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Monitoring Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.707910499999997000486473552882671356201171875,
"lon": 33.32026900000000324553184327669441699981689453125
},
"time_window": {
"start_ts": "2026-11-01T02:46:55+00:00",
"end_ts": "2026-11-01T07:04:59+00:00"
},
"searched_at": "2026-11-01T08:45:10.674099+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Eastern Mediterranean Monitoring Zone
- Duration: 6h 3m
- Data Points: 17 AIS positions
- Period: 2026-11-01T02:46:55+00:00 to 2026-11-01T08:50:02+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 363.1000000000000227373675443232059478759765625,
"points_in_zone": 17,
"first_point": {
"ts": "2026-11-01T02:46:55+00:00",
"lat": 34.707701700000001210355549119412899017333984375,
"lon": 33.32058500000000123009158414788544178009033203125
},
"last_point": {
"ts": "2026-11-01T08:50:02+00:00",
"lat": 34.7077316999999965219103614799678325653076171875,
"lon": 33.3206033000000019228536984883248805999755859375
}
}- Duration: 6h 3m
- Radius: 4 meters
- Data Points: 17 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 4,
"duration_minutes": 363.1000000000000227373675443232059478759765625,
"points": 17,
"centroid": {
"lat": 34.70770609411764695551028125919401645660400390625,
"lon": 33.32057402352941011258735670708119869232177734375
},
"bbox": {
"min_lat": 34.70767000000000024328983272425830364227294921875,
"min_lon": 33.3205482999999986759576131589710712432861328125,
"max_lat": 34.70773669999999810897861607372760772705078125,
"max_lon": 33.3206033000000019228536984883248805999755859375
},
"zone_id": "discovered_037"
}- Zone: Eastern Mediterranean Monitoring Zone
- Duration: 6h 33m
- Data Points: 16 AIS positions
- Period: 2026-11-01T01:43:55+00:00 to 2026-11-01T08:17:02+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_037",
"zone_name": "Eastern Mediterranean Monitoring Zone",
"dwell_minutes": 393.1000000000000227373675443232059478759765625,
"points_in_zone": 16,
"first_point": {
"ts": "2026-11-01T01:43:55+00:00",
"lat": 34.70770329999999859182935324497520923614501953125,
"lon": 33.32059000000000281715983874164521694183349609375
},
"last_point": {
"ts": "2026-11-01T08:17:02+00:00",
"lat": 34.70773669999999810897861607372760772705078125,
"lon": 33.32058500000000123009158414788544178009033203125
}
}- Duration: 6h 33m
- Radius: 4 meters
- Data Points: 16 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Eastern Mediterranean Monitoring Zone
Show Raw Evidence JSON
{
"radius_m": 3.899999999999999911182158029987476766109466552734375,
"duration_minutes": 393.1000000000000227373675443232059478759765625,
"points": 16,
"centroid": {
"lat": 34.707704906250000931322574615478515625,
"lon": 33.32057406874999827550709596835076808929443359375
},
"bbox": {
"min_lat": 34.70767000000000024328983272425830364227294921875,
"min_lon": 33.3205482999999986759576131589710712432861328125,
"max_lat": 34.70773669999999810897861607372760772705078125,
"max_lon": 33.32059000000000281715983874164521694183349609375
},
"zone_id": "discovered_037"
}- Minimum Distance: 309 meters
- Average Distance: 310 meters
- Duration: 1h 18m
- Period: 2026-11-01T01:28:53+00:00 to 2026-11-01T02:46:55+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (NAVIG8 EXCEED and YELLOW STARS) maintained close proximity (min 309m, avg 310m) for 78 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 309m, avg 310m |
| Duration | 15/25 | Duration 78 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±1m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538009099,
"imo": 9913626,
"name": "YELLOW STARS",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 308.6000000000000227373675443232059478759765625,
"avg_distance_m": 309.80000000000001136868377216160297393798828125,
"distance_consistency_m": 1.100000000000000088817841970012523233890533447265625,
"duration_minutes": 78,
"overlap_duration_s": 4682,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T01:28:53+00:00",
"end": "2026-11-01T02:46:55+00:00"
},
"points_count": {
"vessel_a": 3,
"vessel_b": 3
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 70,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 309m, avg 310m"
},
"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 \u00b11m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (NAVIG8 EXCEED and YELLOW STARS) maintained close proximity (min 309m, avg 310m) for 78 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.70870860000000135414666146971285343170166015625,
"lon": 33.32177109999999942147042020224034786224365234375
},
"time_window": {
"start_ts": "2026-11-01T01:28:53+00:00",
"end_ts": "2026-11-01T02:46:55+00:00"
},
"searched_at": "2026-11-01T04:00:10.705212+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 30m
- Data Points: 16 AIS positions
- Period: 2026-11-01T01:28:53+00:00 to 2026-11-01T07:59:02+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 390.1000000000000227373675443232059478759765625,
"points_in_zone": 16,
"first_point": {
"ts": "2026-11-01T01:28:53+00:00",
"lat": 34.70772170000000045320120989345014095306396484375,
"lon": 33.32059670000000295431163976900279521942138671875
},
"last_point": {
"ts": "2026-11-01T07:59:02+00:00",
"lat": 34.70770830000000017889760783873498439788818359375,
"lon": 33.320566700000000537329469807446002960205078125
}
}- Duration: 6h 30m
- Radius: 4 meters
- Data Points: 16 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 3.79999999999999982236431605997495353221893310546875,
"duration_minutes": 390.1000000000000227373675443232059478759765625,
"points": 16,
"centroid": {
"lat": 34.70770396875000329828253597952425479888916015625,
"lon": 33.32057479999999571873559034429490566253662109375
},
"bbox": {
"min_lat": 34.70767000000000024328983272425830364227294921875,
"min_lon": 33.3205482999999986759576131589710712432861328125,
"max_lat": 34.7077316999999965219103614799678325653076171875,
"max_lon": 33.32059670000000295431163976900279521942138671875
},
"zone_id": "discovered_039"
}- Minimum Distance: 70 meters
- Average Distance: 73 meters
- Duration: 5h 21m
- Period: 2026-11-01T01:43:55+00:00 to 2026-11-01T07:04:59+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 70m, avg 72m) for 321 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 70m, avg 72m |
| Duration | 25/25 | Duration 321 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 70.400000000000005684341886080801486968994140625,
"avg_distance_m": 72.5,
"distance_consistency_m": 1.6999999999999999555910790149937383830547332763671875,
"duration_minutes": 321.1000000000000227373675443232059478759765625,
"overlap_duration_s": 19264,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T01:43:55+00:00",
"end": "2026-11-01T07:04:59+00:00"
},
"points_count": {
"vessel_a": 14,
"vessel_b": 14
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 70m, avg 72m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 321 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 70m, avg 72m) for 321 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
}
}- Minimum Distance: 70 meters
- Average Distance: 73 meters
- Duration: 4h 27m
- Period: 2026-11-01T00:44:00+00:00 to 2026-11-01T05:11:00+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 70m, avg 73m) for 267 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 70m, avg 73m |
| Duration | 25/25 | Duration 267 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 70.400000000000005684341886080801486968994140625,
"avg_distance_m": 72.7000000000000028421709430404007434844970703125,
"distance_consistency_m": 2,
"duration_minutes": 267,
"overlap_duration_s": 16020,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T00:44:00+00:00",
"end": "2026-11-01T05:11:00+00:00"
},
"points_count": {
"vessel_a": 15,
"vessel_b": 15
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 70m, avg 73m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 267 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 70m, avg 73m) for 267 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.707913300000001299849827773869037628173828125,
"lon": 33.32027240000000034569893614389002323150634765625
},
"time_window": {
"start_ts": "2026-11-01T00:44:00+00:00",
"end_ts": "2026-11-01T05:11:00+00:00"
},
"searched_at": "2026-11-01T06:45:01.437139+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Minimum Distance: 324 meters
- Average Distance: 328 meters
- Duration: 59 minutes
- Period: 2026-11-01T00:20:36+00:00 to 2026-11-01T01:20:32+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (CHEM RANGER and NAVIG8 EXCEED) maintained close proximity (min 324m, avg 328m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 324m, avg 328m |
| Duration | 10/25 | Duration 60 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±4m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"vessel_b": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"min_distance_m": 323.80000000000001136868377216160297393798828125,
"avg_distance_m": 327.5,
"distance_consistency_m": 4.0999999999999996447286321199499070644378662109375,
"duration_minutes": 59.89999999999999857891452847979962825775146484375,
"overlap_duration_s": 3596,
"speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
"speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T00:20:36+00:00",
"end": "2026-11-01T01:20:32+00:00"
},
"points_count": {
"vessel_a": 4,
"vessel_b": 4
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 65,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 324m, avg 328m"
},
"duration": {
"score": 10,
"max": 25,
"detail": "Duration 60 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b14m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (CHEM RANGER and NAVIG8 EXCEED) maintained close proximity (min 324m, avg 328m) for 60 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.70889849999999654528437531553208827972412109375,
"lon": 33.321625199999999722422217018902301788330078125
},
"time_window": {
"start_ts": "2026-11-01T00:20:36+00:00",
"end_ts": "2026-11-01T01:20:32+00:00"
},
"searched_at": "2026-11-01T04:45:01.845829+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 21m
- Data Points: 17 AIS positions
- Period: 2026-11-01T00:44:00+00:00 to 2026-11-01T07:04:59+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 381,
"points_in_zone": 17,
"first_point": {
"ts": "2026-11-01T00:44:00+00:00",
"lat": 34.70771669999999886613295529969036579132080078125,
"lon": 33.32061829999999957863110466860234737396240234375
},
"last_point": {
"ts": "2026-11-01T07:04:59+00:00",
"lat": 34.707678299999997761915437877178192138671875,
"lon": 33.32058169999999819310687598772346973419189453125
}
}- Duration: 6h 21m
- Radius: 4 meters
- Data Points: 17 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 3.79999999999999982236431605997495353221893310546875,
"duration_minutes": 381,
"points": 17,
"centroid": {
"lat": 34.70770305294117719085988937877118587493896484375,
"lon": 33.3205799058823544100960134528577327728271484375
},
"bbox": {
"min_lat": 34.70767000000000024328983272425830364227294921875,
"min_lon": 33.3205482999999986759576131589710712432861328125,
"max_lat": 34.7077316999999965219103614799678325653076171875,
"max_lon": 33.32061829999999957863110466860234737396240234375
},
"zone_id": "discovered_039"
}- Minimum Distance: 307 meters
- Average Distance: 310 meters
- Duration: 1h 48m
- Period: 2026-11-01T00:05:53+00:00 to 2026-11-01T01:53:54+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (YELLOW STARS and NAVIG8 EXCEED) maintained close proximity (min 307m, avg 310m) for 108 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 307m, avg 310m |
| Duration | 20/25 | Duration 108 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 538009099,
"imo": 9913626,
"name": "YELLOW STARS",
"flag": "MARSHALL ISLANDS"
},
"vessel_b": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"min_distance_m": 307.30000000000001136868377216160297393798828125,
"avg_distance_m": 309.80000000000001136868377216160297393798828125,
"distance_consistency_m": 2,
"duration_minutes": 108,
"overlap_duration_s": 6481,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-11-01T00:05:53+00:00",
"end": "2026-11-01T01:53:54+00:00"
},
"points_count": {
"vessel_a": 6,
"vessel_b": 6
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 75,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 307m, avg 310m"
},
"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 \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (YELLOW STARS and NAVIG8 EXCEED) maintained close proximity (min 307m, avg 310m) for 108 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.7087044000000020105289877392351627349853515625,
"lon": 33.3217776999999983900124789215624332427978515625
},
"time_window": {
"start_ts": "2026-11-01T00:05:53+00:00",
"end_ts": "2026-11-01T01:53:54+00:00"
},
"searched_at": "2026-11-01T06:15:12.591043+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Minimum Distance: 70 meters
- Average Distance: 73 meters
- Duration: 5h 30m
- Period: 2026-10-31T23:40:58+00:00 to 2026-11-01T05:11:00+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 70m, avg 73m) for 330 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 70m, avg 73m |
| Duration | 25/25 | Duration 330 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 70.400000000000005684341886080801486968994140625,
"avg_distance_m": 73.099999999999994315658113919198513031005859375,
"distance_consistency_m": 2,
"duration_minutes": 330,
"overlap_duration_s": 19802,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T23:40:58+00:00",
"end": "2026-11-01T05:11:00+00:00"
},
"points_count": {
"vessel_a": 18,
"vessel_b": 18
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 70m, avg 73m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 330 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 70m, avg 73m) for 330 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 5h 48m
- Data Points: 20 AIS positions
- Period: 2026-10-31T23:22:56+00:00 to 2026-11-01T05:11:00+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 348.1000000000000227373675443232059478759765625,
"points_in_zone": 20,
"first_point": {
"ts": "2026-10-31T23:22:56+00:00",
"lat": 34.70770830000000017889760783873498439788818359375,
"lon": 33.3206167000000021971573005430400371551513671875
},
"last_point": {
"ts": "2026-11-01T05:11:00+00:00",
"lat": 34.707701700000001210355549119412899017333984375,
"lon": 33.3205717000000021243977244012057781219482421875
}
}- Duration: 5h 48m
- Radius: 4 meters
- Data Points: 20 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 4.20000000000000017763568394002504646778106689453125,
"duration_minutes": 348.1000000000000227373675443232059478759765625,
"points": 20,
"centroid": {
"lat": 34.7077050900000045885462895967066287994384765625,
"lon": 33.32058700500000014699253370054066181182861328125
},
"bbox": {
"min_lat": 34.70768000000000341742634191177785396575927734375,
"min_lon": 33.3205482999999986759576131589710712432861328125,
"max_lat": 34.7077316999999965219103614799678325653076171875,
"max_lon": 33.32062169999999667879819753579795360565185546875
},
"zone_id": "discovered_039"
}- Minimum Distance: 307 meters
- Average Distance: 310 meters
- Duration: 2h 39m
- Period: 2026-10-31T23:14:56+00:00 to 2026-11-01T01:53:54+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (YELLOW STARS and NAVIG8 EXCEED) maintained close proximity (min 307m, avg 310m) for 159 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 307m, avg 310m |
| Duration | 25/25 | Duration 159 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 538009099,
"imo": 9913626,
"name": "YELLOW STARS",
"flag": "MARSHALL ISLANDS"
},
"vessel_b": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"min_distance_m": 307.30000000000001136868377216160297393798828125,
"avg_distance_m": 309.8999999999999772626324556767940521240234375,
"distance_consistency_m": 1.6999999999999999555910790149937383830547332763671875,
"duration_minutes": 159,
"overlap_duration_s": 9538,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T23:14:56+00:00",
"end": "2026-11-01T01:53:54+00:00"
},
"points_count": {
"vessel_a": 9,
"vessel_b": 9
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 307m, avg 310m"
},
"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 \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (YELLOW STARS and NAVIG8 EXCEED) maintained close proximity (min 307m, avg 310m) for 159 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
}
}- Minimum Distance: 324 meters
- Average Distance: 328 meters
- Duration: 3h 30m
- Period: 2026-10-31T21:50:32+00:00 to 2026-11-01T01:20:32+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (CHEM RANGER and NAVIG8 EXCEED) maintained close proximity (min 324m, avg 328m) for 210 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 324m, avg 328m |
| Duration | 25/25 | Duration 210 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±4m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"vessel_b": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"min_distance_m": 323.80000000000001136868377216160297393798828125,
"avg_distance_m": 327.8999999999999772626324556767940521240234375,
"distance_consistency_m": 3.70000000000000017763568394002504646778106689453125,
"duration_minutes": 210,
"overlap_duration_s": 12600,
"speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
"speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
"max_sog": 0.1000000000000000055511151231257827021181583404541015625
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T21:50:32+00:00",
"end": "2026-11-01T01:20:32+00:00"
},
"points_count": {
"vessel_a": 5,
"vessel_b": 5
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 324m, avg 328m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 210 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b14m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (CHEM RANGER and NAVIG8 EXCEED) maintained close proximity (min 324m, avg 328m) for 210 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
}
}- Minimum Distance: 70 meters
- Average Distance: 74 meters
- Duration: 6h 21m
- Period: 2026-10-31T21:40:59+00:00 to 2026-11-01T04:01:57+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 70m, avg 74m) for 381 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 70m, avg 74m |
| Duration | 25/25 | Duration 381 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±2m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 70.400000000000005684341886080801486968994140625,
"avg_distance_m": 74.400000000000005684341886080801486968994140625,
"distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
"duration_minutes": 381,
"overlap_duration_s": 22858,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T21:40:59+00:00",
"end": "2026-11-01T04:01:57+00:00"
},
"points_count": {
"vessel_a": 14,
"vessel_b": 14
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 70m, avg 74m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 381 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b12m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 70m, avg 74m) for 381 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.70791390000000120608092402108013629913330078125,
"lon": 33.320279499999998051862348802387714385986328125
},
"time_window": {
"start_ts": "2026-10-31T21:40:59+00:00",
"end_ts": "2026-11-01T04:01:57+00:00"
},
"searched_at": "2026-11-01T04:15:01.497183+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Minimum Distance: 309 meters
- Average Distance: 310 meters
- Duration: 2h 36m
- Period: 2026-10-31T21:34:58+00:00 to 2026-11-01T00:10:58+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and YELLOW STARS) maintained close proximity (min 309m, avg 310m) for 156 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 309m, avg 310m |
| Duration | 25/25 | Duration 156 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±1m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538009099,
"imo": 9913626,
"name": "YELLOW STARS",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 309.1000000000000227373675443232059478759765625,
"avg_distance_m": 310,
"distance_consistency_m": 0.90000000000000002220446049250313080847263336181640625,
"duration_minutes": 156,
"overlap_duration_s": 9360,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T21:34:58+00:00",
"end": "2026-11-01T00:10:58+00:00"
},
"points_count": {
"vessel_a": 7,
"vessel_b": 7
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 309m, avg 310m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 156 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b11m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and YELLOW STARS) maintained close proximity (min 309m, avg 310m) for 156 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 30m
- Data Points: 15 AIS positions
- Period: 2026-10-31T21:40:59+00:00 to 2026-11-01T04:10:58+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 390,
"points_in_zone": 15,
"first_point": {
"ts": "2026-10-31T21:40:59+00:00",
"lat": 34.70769829999999700476109865121543407440185546875,
"lon": 33.320594999999997298800735734403133392333984375
},
"last_point": {
"ts": "2026-11-01T04:10:58+00:00",
"lat": 34.70772000000000190311766345985233783721923828125,
"lon": 33.32057830000000109293978312052786350250244140625
}
}- Duration: 6h 30m
- Radius: 4 meters
- Data Points: 15 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 3.600000000000000088817841970012523233890533447265625,
"duration_minutes": 390,
"points": 15,
"centroid": {
"lat": 34.707706000000001722582965157926082611083984375,
"lon": 33.32059600666666909773994120769202709197998046875
},
"bbox": {
"min_lat": 34.70768000000000341742634191177785396575927734375,
"min_lon": 33.3205717000000021243977244012057781219482421875,
"max_lat": 34.7077316999999965219103614799678325653076171875,
"max_lon": 33.32062169999999667879819753579795360565185546875
},
"zone_id": "discovered_039"
}- Minimum Distance: 73 meters
- Average Distance: 75 meters
- Duration: 6h 9m
- Period: 2026-10-31T20:37:54+00:00 to 2026-11-01T02:46:55+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 73m, avg 75m) for 369 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 73m, avg 75m |
| Duration | 25/25 | Duration 369 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±1m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 73.2000000000000028421709430404007434844970703125,
"avg_distance_m": 75.2000000000000028421709430404007434844970703125,
"distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
"duration_minutes": 369,
"overlap_duration_s": 22141,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T20:37:54+00:00",
"end": "2026-11-01T02:46:55+00:00"
},
"points_count": {
"vessel_a": 13,
"vessel_b": 13
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 73m, avg 75m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 369 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b11m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 73m, avg 75m) for 369 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.70791229999999671917976229451596736907958984375,
"lon": 33.32028170000000244499460677616298198699951171875
},
"time_window": {
"start_ts": "2026-10-31T20:37:54+00:00",
"end_ts": "2026-11-01T02:46:55+00:00"
},
"searched_at": "2026-11-01T03:15:01.490771+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 30m
- Data Points: 15 AIS positions
- Period: 2026-10-31T20:22:56+00:00 to 2026-11-01T02:52:55+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 390,
"points_in_zone": 15,
"first_point": {
"ts": "2026-10-31T20:22:56+00:00",
"lat": 34.70770499999999714191289967857301235198974609375,
"lon": 33.3206033000000019228536984883248805999755859375
},
"last_point": {
"ts": "2026-11-01T02:52:55+00:00",
"lat": 34.707701700000001210355549119412899017333984375,
"lon": 33.32058500000000123009158414788544178009033203125
}
}- Duration: 6h 30m
- Radius: 3 meters
- Data Points: 15 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 2.5,
"duration_minutes": 390,
"points": 15,
"centroid": {
"lat": 34.70770121999999702211425756104290485382080078125,
"lon": 33.32060111333333196625972050242125988006591796875
},
"bbox": {
"min_lat": 34.70768000000000341742634191177785396575927734375,
"min_lon": 33.32058500000000123009158414788544178009033203125,
"max_lat": 34.70772170000000045320120989345014095306396484375,
"max_lon": 33.32062169999999667879819753579795360565185546875
},
"zone_id": "discovered_039"
}- Minimum Distance: 74 meters
- Average Distance: 75 meters
- Duration: 5h 9m
- Period: 2026-10-31T19:34:52+00:00 to 2026-11-01T00:44:00+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 74m, avg 75m) for 309 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 74m, avg 75m |
| Duration | 25/25 | Duration 309 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±1m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 74.2999999999999971578290569595992565155029296875,
"avg_distance_m": 75.2999999999999971578290569595992565155029296875,
"distance_consistency_m": 0.6999999999999999555910790149937383830547332763671875,
"duration_minutes": 309.1000000000000227373675443232059478759765625,
"overlap_duration_s": 18548,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T19:34:52+00:00",
"end": "2026-11-01T00:44:00+00:00"
},
"points_count": {
"vessel_a": 11,
"vessel_b": 11
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 74m, avg 75m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 309 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b11m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 74m, avg 75m) for 309 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.7079116000000027497662813402712345123291015625,
"lon": 33.320282800000001088847056962549686431884765625
},
"time_window": {
"start_ts": "2026-10-31T19:34:52+00:00",
"end_ts": "2026-11-01T00:44:00+00:00"
},
"searched_at": "2026-11-01T01:30:05.110501+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Minimum Distance: 322 meters
- Average Distance: 325 meters
- Duration: 48 minutes
- Period: 2026-10-31T19:34:52+00:00 to 2026-10-31T20:22:56+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 325m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 322m, avg 325m |
| Duration | 10/25 | Duration 48 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±4m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 321.69999999999998863131622783839702606201171875,
"avg_distance_m": 324.69999999999998863131622783839702606201171875,
"distance_consistency_m": 4.20000000000000017763568394002504646778106689453125,
"duration_minutes": 48.10000000000000142108547152020037174224853515625,
"overlap_duration_s": 2884,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T19:34:52+00:00",
"end": "2026-10-31T20:22:56+00:00"
},
"points_count": {
"vessel_a": 2,
"vessel_b": 2
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 65,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 322m, avg 325m"
},
"duration": {
"score": 10,
"max": 25,
"detail": "Duration 48 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b14m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 325m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.70890539999999901965566095896065235137939453125,
"lon": 33.3215890999999970745193422771990299224853515625
},
"time_window": {
"start_ts": "2026-10-31T19:34:52+00:00",
"end_ts": "2026-10-31T20:22:56+00:00"
},
"searched_at": "2026-11-01T01:30:08.420984+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 9m
- Data Points: 14 AIS positions
- Period: 2026-10-31T19:34:52+00:00 to 2026-11-01T01:43:55+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 369.1000000000000227373675443232059478759765625,
"points_in_zone": 14,
"first_point": {
"ts": "2026-10-31T19:34:52+00:00",
"lat": 34.7076832999999993489836924709379673004150390625,
"lon": 33.32058669999999978017513058148324489593505859375
},
"last_point": {
"ts": "2026-11-01T01:43:55+00:00",
"lat": 34.70770329999999859182935324497520923614501953125,
"lon": 33.32059000000000281715983874164521694183349609375
}
}- Duration: 6h 9m
- Radius: 3 meters
- Data Points: 14 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 2.5,
"duration_minutes": 369.1000000000000227373675443232059478759765625,
"points": 14,
"centroid": {
"lat": 34.70769987142856649597888463176786899566650390625,
"lon": 33.3206023857142810129516874440014362335205078125
},
"bbox": {
"min_lat": 34.70768000000000341742634191177785396575927734375,
"min_lon": 33.32058669999999978017513058148324489593505859375,
"max_lat": 34.70772170000000045320120989345014095306396484375,
"max_lon": 33.32062169999999667879819753579795360565185546875
},
"zone_id": "discovered_039"
}- Minimum Distance: 322 meters
- Average Distance: 326 meters
- Duration: 1h 41m
- Period: 2026-10-31T18:44:33+00:00 to 2026-10-31T20:26:29+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (CHEM RANGER and NAVIG8 EXCEED) maintained close proximity (min 322m, avg 326m) for 102 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 322m, avg 326m |
| Duration | 20/25 | Duration 102 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±4m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"vessel_b": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"min_distance_m": 321.69999999999998863131622783839702606201171875,
"avg_distance_m": 326.19999999999998863131622783839702606201171875,
"distance_consistency_m": 3.79999999999999982236431605997495353221893310546875,
"duration_minutes": 101.900000000000005684341886080801486968994140625,
"overlap_duration_s": 6116,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T18:44:33+00:00",
"end": "2026-10-31T20:26:29+00:00"
},
"points_count": {
"vessel_a": 5,
"vessel_b": 5
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 75,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 322m, avg 326m"
},
"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 \u00b14m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (CHEM RANGER and NAVIG8 EXCEED) maintained close proximity (min 322m, avg 326m) for 102 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.7089114999999992505763657391071319580078125,
"lon": 33.32159630000000305471985484473407268524169921875
},
"time_window": {
"start_ts": "2026-10-31T18:44:33+00:00",
"end_ts": "2026-10-31T20:26:29+00:00"
},
"searched_at": "2026-10-31T20:45:01.536816+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Minimum Distance: 74 meters
- Average Distance: 75 meters
- Duration: 5h 3m
- Period: 2026-10-31T18:37:59+00:00 to 2026-10-31T23:40:58+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 74m, avg 75m) for 303 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 74m, avg 75m |
| Duration | 25/25 | Duration 303 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±1m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 73.5,
"avg_distance_m": 75.2000000000000028421709430404007434844970703125,
"distance_consistency_m": 0.90000000000000002220446049250313080847263336181640625,
"duration_minutes": 303,
"overlap_duration_s": 18179,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T18:37:59+00:00",
"end": "2026-10-31T23:40:58+00:00"
},
"points_count": {
"vessel_a": 10,
"vessel_b": 10
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 74m, avg 75m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 303 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b11m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 74m, avg 75m) for 303 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 35m
- Data Points: 14 AIS positions
- Period: 2026-10-31T18:53:02+00:00 to 2026-11-01T01:28:53+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 395.8999999999999772626324556767940521240234375,
"points_in_zone": 14,
"first_point": {
"ts": "2026-10-31T18:53:02+00:00",
"lat": 34.70769500000000107320374809205532073974609375,
"lon": 33.32059170000000136724338517524302005767822265625
},
"last_point": {
"ts": "2026-11-01T01:28:53+00:00",
"lat": 34.70772170000000045320120989345014095306396484375,
"lon": 33.32059670000000295431163976900279521942138671875
}
}- Duration: 6h 35m
- Radius: 3 meters
- Data Points: 14 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 2.5,
"duration_minutes": 395.8999999999999772626324556767940521240234375,
"points": 14,
"centroid": {
"lat": 34.707699278571425338668632321059703826904296875,
"lon": 33.32060250714285842832396156154572963714599609375
},
"bbox": {
"min_lat": 34.70768000000000341742634191177785396575927734375,
"min_lon": 33.32058669999999978017513058148324489593505859375,
"max_lat": 34.70772170000000045320120989345014095306396484375,
"max_lon": 33.32062169999999667879819753579795360565185546875
},
"zone_id": "discovered_039"
}- Minimum Distance: 305 meters
- Average Distance: 308 meters
- Duration: 1h 15m
- Period: 2026-10-31T17:22:59+00:00 to 2026-10-31T18:37:59+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (NAVIG8 EXCEED and YELLOW STARS) maintained close proximity (min 305m, avg 308m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 305m, avg 308m |
| Duration | 15/25 | Duration 75 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±3m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538009099,
"imo": 9913626,
"name": "YELLOW STARS",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 305.1000000000000227373675443232059478759765625,
"avg_distance_m": 307.69999999999998863131622783839702606201171875,
"distance_consistency_m": 2.600000000000000088817841970012523233890533447265625,
"duration_minutes": 75,
"overlap_duration_s": 4500,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T17:22:59+00:00",
"end": "2026-10-31T18:37:59+00:00"
},
"points_count": {
"vessel_a": 4,
"vessel_b": 4
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 70,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 305m, avg 308m"
},
"duration": {
"score": 15,
"max": 25,
"detail": "Duration 75 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: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (NAVIG8 EXCEED and YELLOW STARS) maintained close proximity (min 305m, avg 308m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.70868250000000188038029591552913188934326171875,
"lon": 33.321773100000001477383193559944629669189453125
},
"time_window": {
"start_ts": "2026-10-31T17:22:59+00:00",
"end_ts": "2026-10-31T18:37:59+00:00"
},
"searched_at": "2026-10-31T20:15:02.114789+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Minimum Distance: 322 meters
- Average Distance: 327 meters
- Duration: 2h 59m
- Period: 2026-10-31T17:22:59+00:00 to 2026-10-31T20:22:56+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 327m) for 180 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 322m, avg 327m |
| Duration | 25/25 | Duration 180 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±3m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 321.69999999999998863131622783839702606201171875,
"avg_distance_m": 327,
"distance_consistency_m": 3.399999999999999911182158029987476766109466552734375,
"duration_minutes": 179.900000000000005684341886080801486968994140625,
"overlap_duration_s": 10797,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T17:22:59+00:00",
"end": "2026-10-31T20:22:56+00:00"
},
"points_count": {
"vessel_a": 7,
"vessel_b": 7
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 322m, avg 327m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 180 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: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 327m) for 180 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.7089112999999969133568811230361461639404296875,
"lon": 33.3216010000000011359588825143873691558837890625
},
"time_window": {
"start_ts": "2026-10-31T17:22:59+00:00",
"end_ts": "2026-10-31T20:22:56+00:00"
},
"searched_at": "2026-10-31T22:30:02.183889+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 35m
- Data Points: 14 AIS positions
- Period: 2026-10-31T17:22:59+00:00 to 2026-10-31T23:58:56+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 395.8999999999999772626324556767940521240234375,
"points_in_zone": 14,
"first_point": {
"ts": "2026-10-31T17:22:59+00:00",
"lat": 34.707678299999997761915437877178192138671875,
"lon": 33.3206050000000004729372449219226837158203125
},
"last_point": {
"ts": "2026-10-31T23:58:56+00:00",
"lat": 34.70769829999999700476109865121543407440185546875,
"lon": 33.3205932999999987487171893008053302764892578125
}
}- Duration: 6h 35m
- Radius: 3 meters
- Data Points: 14 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 2.600000000000000088817841970012523233890533447265625,
"duration_minutes": 395.8999999999999772626324556767940521240234375,
"points": 14,
"centroid": {
"lat": 34.7076962999999949488483252935111522674560546875,
"lon": 33.320599057142857191138318739831447601318359375
},
"bbox": {
"min_lat": 34.707678299999997761915437877178192138671875,
"min_lon": 33.3205717000000021243977244012057781219482421875,
"max_lat": 34.70770999999999872898115427233278751373291015625,
"max_lon": 33.32062169999999667879819753579795360565185546875
},
"zone_id": "discovered_039"
}- Minimum Distance: 77 meters
- Average Distance: 77 meters
- Duration: 1h 42m
- Period: 2026-10-31T15:40:57+00:00 to 2026-10-31T17:22:59+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 76m, avg 77m) for 102 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 76m, avg 77m |
| Duration | 20/25 | Duration 102 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±0m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 76.5,
"avg_distance_m": 76.599999999999994315658113919198513031005859375,
"distance_consistency_m": 0.1000000000000000055511151231257827021181583404541015625,
"duration_minutes": 102,
"overlap_duration_s": 6122,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T15:40:57+00:00",
"end": "2026-10-31T17:22:59+00:00"
},
"points_count": {
"vessel_a": 2,
"vessel_b": 2
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 90,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 76m, avg 77m"
},
"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 \u00b10m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 76m, avg 77m) for 102 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.70789959999999751971699879504740238189697265625,
"lon": 33.3202849999999983765519573353230953216552734375
},
"time_window": {
"start_ts": "2026-10-31T15:40:57+00:00",
"end_ts": "2026-10-31T17:22:59+00:00"
},
"searched_at": "2026-10-31T18:15:01.648008+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Minimum Distance: 322 meters
- Average Distance: 327 meters
- Duration: 5h 6m
- Period: 2026-10-31T15:16:54+00:00 to 2026-10-31T20:22:56+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 327m) for 306 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 322m, avg 327m |
| Duration | 25/25 | Duration 306 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±3m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 321.69999999999998863131622783839702606201171875,
"avg_distance_m": 327.30000000000001136868377216160297393798828125,
"distance_consistency_m": 3,
"duration_minutes": 306,
"overlap_duration_s": 18362,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T15:16:54+00:00",
"end": "2026-10-31T20:22:56+00:00"
},
"points_count": {
"vessel_a": 9,
"vessel_b": 9
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 322m, avg 327m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 306 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: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 322m, avg 327m) for 306 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.708912499999996725819073617458343505859375,
"lon": 33.32160069999999763012965559028089046478271484375
},
"time_window": {
"start_ts": "2026-10-31T15:16:54+00:00",
"end_ts": "2026-10-31T20:22:56+00:00"
},
"searched_at": "2026-10-31T21:00:01.439938+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 24m
- Data Points: 12 AIS positions
- Period: 2026-10-31T15:16:54+00:00 to 2026-10-31T21:40:59+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 384.1000000000000227373675443232059478759765625,
"points_in_zone": 12,
"first_point": {
"ts": "2026-10-31T15:16:54+00:00",
"lat": 34.707684999999997899067238904535770416259765625,
"lon": 33.3206066999999990230207913555204868316650390625
},
"last_point": {
"ts": "2026-10-31T21:40:59+00:00",
"lat": 34.70769829999999700476109865121543407440185546875,
"lon": 33.320594999999997298800735734403133392333984375
}
}- Duration: 6h 24m
- Radius: 2 meters
- Data Points: 12 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 2.399999999999999911182158029987476766109466552734375,
"duration_minutes": 384.1000000000000227373675443232059478759765625,
"points": 12,
"centroid": {
"lat": 34.70769291666666589435408241115510463714599609375,
"lon": 33.32059792500000838799678604118525981903076171875
},
"bbox": {
"min_lat": 34.707678299999997761915437877178192138671875,
"min_lon": 33.3205717000000021243977244012057781219482421875,
"max_lat": 34.70770999999999872898115427233278751373291015625,
"max_lon": 33.3206100000000020600054995156824588775634765625
},
"zone_id": "discovered_039"
}- Minimum Distance: 318 meters
- Average Distance: 326 meters
- Duration: 3h 15m
- Period: 2026-10-31T14:19:53+00:00 to 2026-10-31T17:34:56+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 318m, avg 326m) for 195 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 318m, avg 326m |
| Duration | 25/25 | Duration 195 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: Northern Baltic Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538004628,
"imo": 9490296,
"name": "CHEM RANGER",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 317.5,
"avg_distance_m": 325.6000000000000227373675443232059478759765625,
"distance_consistency_m": 5.5,
"duration_minutes": 195.099999999999994315658113919198513031005859375,
"overlap_duration_s": 11703,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T14:19:53+00:00",
"end": "2026-10-31T17:34:56+00:00"
},
"points_count": {
"vessel_a": 7,
"vessel_b": 7
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 318m, avg 326m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 195 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: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and CHEM RANGER) maintained close proximity (min 318m, avg 326m) for 195 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 18m
- Data Points: 12 AIS positions
- Period: 2026-10-31T14:19:53+00:00 to 2026-10-31T20:37:54+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 378,
"points_in_zone": 12,
"first_point": {
"ts": "2026-10-31T14:19:53+00:00",
"lat": 34.7077000000000026602720026858150959014892578125,
"lon": 33.32062169999999667879819753579795360565185546875
},
"last_point": {
"ts": "2026-10-31T20:37:54+00:00",
"lat": 34.7076899999999994861354934982955455780029296875,
"lon": 33.320601699999997435952536761760711669921875
}
}- Duration: 6h 18m
- Radius: 3 meters
- Data Points: 12 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 2.79999999999999982236431605997495353221893310546875,
"duration_minutes": 378,
"points": 12,
"centroid": {
"lat": 34.70769250000000027966962079517543315887451171875,
"lon": 33.32060209999999500496414839290082454681396484375
},
"bbox": {
"min_lat": 34.707678299999997761915437877178192138671875,
"min_lon": 33.3205717000000021243977244012057781219482421875,
"max_lat": 34.70770999999999872898115427233278751373291015625,
"max_lon": 33.32062169999999667879819753579795360565185546875
},
"zone_id": "discovered_039"
}- Minimum Distance: 77 meters
- Average Distance: 77 meters
- Duration: 2h 57m
- Period: 2026-10-31T11:25:50+00:00 to 2026-10-31T14:22:56+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 77m, avg 77m) for 177 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 77m, avg 77m |
| Duration | 25/25 | Duration 177 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±0m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 76.7000000000000028421709430404007434844970703125,
"avg_distance_m": 77.400000000000005684341886080801486968994140625,
"distance_consistency_m": 0.5,
"duration_minutes": 177.099999999999994315658113919198513031005859375,
"overlap_duration_s": 10626,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T11:25:50+00:00",
"end": "2026-10-31T14:22:56+00:00"
},
"points_count": {
"vessel_a": 5,
"vessel_b": 5
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 77m, avg 77m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 177 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b10m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 77m, avg 77m) for 177 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.7079149999999998499333742074668407440185546875,
"lon": 33.32029479999999921346898190677165985107421875
},
"time_window": {
"start_ts": "2026-10-31T11:25:50+00:00",
"end_ts": "2026-10-31T14:22:56+00:00"
},
"searched_at": "2026-10-31T17:45:01.947549+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Minimum Distance: 311 meters
- Average Distance: 315 meters
- Duration: 34 minutes
- Period: 2026-10-31T11:18:31+00:00 to 2026-10-31T11:52:56+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
Moderate-confidence STS candidate. Two tankers (NAVIG8 EXCEED and STI DAMA) maintained close proximity (min 311m, avg 315m) for 34 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 311m, avg 315m |
| Duration | 5/25 | Duration 34 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±3m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea 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": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005173,
"imo": 9686716,
"name": "STI DAMA",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 310.80000000000001136868377216160297393798828125,
"avg_distance_m": 315.30000000000001136868377216160297393798828125,
"distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
"duration_minutes": 34.39999999999999857891452847979962825775146484375,
"overlap_duration_s": 2065,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T11:18:31+00:00",
"end": "2026-10-31T11:52:56+00:00"
},
"points_count": {
"vessel_a": 5,
"vessel_b": 5
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 60,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 311m, avg 315m"
},
"duration": {
"score": 5,
"max": 25,
"detail": "Duration 34 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b13m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "Moderate-confidence STS candidate. Two tankers (NAVIG8 EXCEED and STI DAMA) maintained close proximity (min 311m, avg 315m) for 34 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
},
"sar": {
"status": "not_found",
"centroid": {
"lat": 34.70890750000000224417817662470042705535888671875,
"lon": 33.32155149999999821375240571796894073486328125
},
"time_window": {
"start_ts": "2026-10-31T11:18:31+00:00",
"end_ts": "2026-10-31T11:52:56+00:00"
},
"searched_at": "2026-10-31T12:15:45.346633+00:00",
"notes": "No Sentinel-1 scenes covering AOI and time window"
}
}- Minimum Distance: 306 meters
- Average Distance: 308 meters
- Duration: 3h 7m
- Period: 2026-10-31T11:15:21+00:00 to 2026-10-31T14:22:56+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and YELLOW STARS) maintained close proximity (min 306m, avg 308m) for 188 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 10/25 | Min distance 306m, avg 308m |
| Duration | 25/25 | Duration 188 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±1m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538009099,
"imo": 9913626,
"name": "YELLOW STARS",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 305.69999999999998863131622783839702606201171875,
"avg_distance_m": 308.3999999999999772626324556767940521240234375,
"distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
"duration_minutes": 187.599999999999994315658113919198513031005859375,
"overlap_duration_s": 11255,
"speed_a_avg": 0,
"speed_a_std": 0,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0,
"max_sog": 0
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T11:15:21+00:00",
"end": "2026-10-31T14:22:56+00:00"
},
"points_count": {
"vessel_a": 8,
"vessel_b": 8
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 80,
"components": {
"distance_tightness": {
"score": 10,
"max": 25,
"detail": "Min distance 306m, avg 308m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 188 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b11m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and YELLOW STARS) maintained close proximity (min 306m, avg 308m) for 188 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 28m
- Data Points: 14 AIS positions
- Period: 2026-10-31T11:06:43+00:00 to 2026-10-31T17:34:56+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 388.19999999999998863131622783839702606201171875,
"points_in_zone": 14,
"first_point": {
"ts": "2026-10-31T11:06:43+00:00",
"lat": 34.70771169999999727906470070593059062957763671875,
"lon": 33.32062330000000116569935926236212253570556640625
},
"last_point": {
"ts": "2026-10-31T17:34:56+00:00",
"lat": 34.70769500000000107320374809205532073974609375,
"lon": 33.320598300000000335785443894565105438232421875
}
}- Duration: 6h 28m
- Radius: 4 meters
- Data Points: 14 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 3.5,
"duration_minutes": 388.19999999999998863131622783839702606201171875,
"points": 14,
"centroid": {
"lat": 34.70769857857143136925515136681497097015380859375,
"lon": 33.32062214285713963590751518495380878448486328125
},
"bbox": {
"min_lat": 34.707678299999997761915437877178192138671875,
"min_lon": 33.320598300000000335785443894565105438232421875,
"max_lat": 34.70772170000000045320120989345014095306396484375,
"max_lon": 33.3206483000000019956132746301591396331787109375
},
"zone_id": "discovered_039"
}- Minimum Distance: 76 meters
- Average Distance: 77 meters
- Duration: 3h 28m
- Period: 2026-10-31T10:54:08+00:00 to 2026-10-31T14:22:56+00:00
- Vessel A Avg Speed: 0.0 knots
- Vessel B Avg Speed: 0.0 knots
- Zone: Northern Baltic Sea Surveillance Zone
Confidence Analysis
High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 76m, avg 77m) for 209 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area.
View scoring breakdown
| Factor | Score | Detail |
|---|---|---|
| Distance Tightness | 25/25 | Min distance 76m, avg 77m |
| Duration | 25/25 | Duration 209 minutes |
| Speed Stability | 20/20 | both nearly stationary; very stable speeds |
| Distance Consistency | 15/15 | Distance variance ±1m |
| Isolation | 5/10 | Isolation data not available |
| Context | 5/5 | In monitored zone: Northern Baltic Sea Surveillance Zone |
Show Raw Evidence JSON
{
"vessel_a": {
"mmsi": 563257500,
"imo": 9973913,
"name": "NAVIG8 EXCEED",
"flag": "Singapore"
},
"vessel_b": {
"mmsi": 538005294,
"imo": 9363780,
"name": "TWINKLE STAR",
"flag": "MARSHALL ISLANDS"
},
"min_distance_m": 75.5,
"avg_distance_m": 77.099999999999994315658113919198513031005859375,
"distance_consistency_m": 0.8000000000000000444089209850062616169452667236328125,
"duration_minutes": 208.80000000000001136868377216160297393798828125,
"overlap_duration_s": 12528,
"speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
"speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
"speed_b_avg": 0,
"speed_b_std": 0,
"speed_summary": {
"vessel_a": {
"avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
"max_sog": 0.200000000000000011102230246251565404236316680908203125
},
"vessel_b": {
"avg_sog": 0,
"max_sog": 0
}
},
"time_window": {
"start": "2026-10-31T10:54:08+00:00",
"end": "2026-10-31T14:22:56+00:00"
},
"points_count": {
"vessel_a": 11,
"vessel_b": 11
},
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"score": {
"value": 95,
"components": {
"distance_tightness": {
"score": 25,
"max": 25,
"detail": "Min distance 76m, avg 77m"
},
"duration": {
"score": 25,
"max": 25,
"detail": "Duration 209 minutes"
},
"speed_stability": {
"score": 20,
"max": 20,
"detail": "both nearly stationary; very stable speeds"
},
"distance_consistency": {
"score": 15,
"max": 15,
"detail": "Distance variance \u00b11m"
},
"isolation": {
"score": 5,
"max": 10,
"detail": "Isolation data not available"
},
"context": {
"score": 5,
"max": 5,
"detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
}
},
"summary": "High-confidence STS candidate. Two tankers (NAVIG8 EXCEED and TWINKLE STAR) maintained close proximity (min 76m, avg 77m) for 209 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
}
}- Duration: 6h 34m
- Radius: 3 meters
- Data Points: 15 AIS positions
- Centroid: 34.7077, 33.3206
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 3.399999999999999911182158029987476766109466552734375,
"duration_minutes": 394.80000000000001136868377216160297393798828125,
"points": 15,
"centroid": {
"lat": 34.70770000666666277311378507874906063079833984375,
"lon": 33.3206226733333323863917030394077301025390625
},
"bbox": {
"min_lat": 34.707678299999997761915437877178192138671875,
"min_lon": 33.3206050000000004729372449219226837158203125,
"max_lat": 34.70772170000000045320120989345014095306396484375,
"max_lon": 33.3206483000000019956132746301591396331787109375
},
"zone_id": "discovered_039"
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 34m
- Data Points: 15 AIS positions
- Period: 2026-10-31T10:54:08+00:00 to 2026-10-31T17:28:57+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 394.80000000000001136868377216160297393798828125,
"points_in_zone": 15,
"first_point": {
"ts": "2026-10-31T10:54:08+00:00",
"lat": 34.70769829999999700476109865121543407440185546875,
"lon": 33.320611700000000610089045949280261993408203125
},
"last_point": {
"ts": "2026-10-31T17:28:57+00:00",
"lat": 34.70770999999999872898115427233278751373291015625,
"lon": 33.3206066999999990230207913555204868316650390625
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 16m
- Data Points: 24 AIS positions
- Period: 2026-10-31T09:24:37+00:00 to 2026-10-31T15:40:57+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 376.30000000000001136868377216160297393798828125,
"points_in_zone": 24,
"first_point": {
"ts": "2026-10-31T09:24:37+00:00",
"lat": 34.69902830000000193422238226048648357391357421875,
"lon": 33.35507499999999936335370875895023345947265625
},
"last_point": {
"ts": "2026-10-31T15:40:57+00:00",
"lat": 34.70768170000000196750988834537565708160400390625,
"lon": 33.3206100000000020600054995156824588775634765625
}
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 31m
- Data Points: 25 AIS positions
- Period: 2026-10-31T08:45:32+00:00 to 2026-10-31T15:16:54+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 391.3999999999999772626324556767940521240234375,
"points_in_zone": 25,
"first_point": {
"ts": "2026-10-31T08:45:32+00:00",
"lat": 34.698998299999999517240212298929691314697265625,
"lon": 33.35507499999999936335370875895023345947265625
},
"last_point": {
"ts": "2026-10-31T15:16:54+00:00",
"lat": 34.707684999999997899067238904535770416259765625,
"lon": 33.3206066999999990230207913555204868316650390625
}
}- Duration: 2h 8m
- Radius: 543 meters
- Data Points: 11 AIS positions
- Centroid: 34.6987, 33.3544
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 542.8999999999999772626324556767940521240234375,
"duration_minutes": 128,
"points": 11,
"centroid": {
"lat": 34.69872316363636599589881370775401592254638671875,
"lon": 33.354439081818185286465450190007686614990234375
},
"bbox": {
"min_lat": 34.69799830000000184782038559205830097198486328125,
"min_lon": 33.348534999999998262865119613707065582275390625,
"max_lat": 34.69902830000000193422238226048648357391357421875,
"max_lon": 33.355535000000003265085979364812374114990234375
},
"zone_id": "discovered_039"
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 4h 46m
- Data Points: 27 AIS positions
- Period: 2026-10-31T07:06:36+00:00 to 2026-10-31T11:52:56+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 286.30000000000001136868377216160297393798828125,
"points_in_zone": 27,
"first_point": {
"ts": "2026-10-31T07:06:36+00:00",
"lat": 34.6974383000000017318598111160099506378173828125,
"lon": 33.35585329999999970596036291681230068206787109375
},
"last_point": {
"ts": "2026-10-31T11:52:56+00:00",
"lat": 34.70772170000000045320120989345014095306396484375,
"lon": 33.3206483000000019956132746301591396331787109375
}
}- Duration: 3h 5m
- Radius: 562 meters
- Data Points: 13 AIS positions
- Centroid: 34.6986, 33.3547
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 562.1000000000000227373675443232059478759765625,
"duration_minutes": 185,
"points": 13,
"centroid": {
"lat": 34.69857741538461226582512608729302883148193359375,
"lon": 33.354661784615387887242832221090793609619140625
},
"bbox": {
"min_lat": 34.6974383000000017318598111160099506378173828125,
"min_lon": 33.348534999999998262865119613707065582275390625,
"max_lat": 34.69902830000000193422238226048648357391357421875,
"max_lon": 33.355919999999997571649146266281604766845703125
},
"zone_id": "discovered_039"
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 5h 49m
- Data Points: 32 AIS positions
- Period: 2026-10-31T06:03:34+00:00 to 2026-10-31T11:52:56+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 349.3999999999999772626324556767940521240234375,
"points_in_zone": 32,
"first_point": {
"ts": "2026-10-31T06:03:34+00:00",
"lat": 34.69675670000000167192411026917397975921630859375,
"lon": 33.35554669999999788387867738492786884307861328125
},
"last_point": {
"ts": "2026-10-31T11:52:56+00:00",
"lat": 34.70772170000000045320120989345014095306396484375,
"lon": 33.3206483000000019956132746301591396331787109375
}
}- Duration: 4h 8m
- Radius: 587 meters
- Data Points: 18 AIS positions
- Centroid: 34.6981, 33.3549
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 587.299999999999954525264911353588104248046875,
"duration_minutes": 248,
"points": 18,
"centroid": {
"lat": 34.6981086888888938801756012253463268280029296875,
"lon": 33.35494092222221951260507921688258647918701171875
},
"bbox": {
"min_lat": 34.69675670000000167192411026917397975921630859375,
"min_lon": 33.348534999999998262865119613707065582275390625,
"max_lat": 34.69902830000000193422238226048648357391357421875,
"max_lon": 33.355919999999997571649146266281604766845703125
},
"zone_id": "discovered_039"
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 13m
- Data Points: 34 AIS positions
- Period: 2026-10-31T05:39:37+00:00 to 2026-10-31T11:52:56+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 373.30000000000001136868377216160297393798828125,
"points_in_zone": 34,
"first_point": {
"ts": "2026-10-31T05:39:37+00:00",
"lat": 34.69680000000000319460013997741043567657470703125,
"lon": 33.355670000000003483364707790315151214599609375
},
"last_point": {
"ts": "2026-10-31T11:52:56+00:00",
"lat": 34.70772170000000045320120989345014095306396484375,
"lon": 33.3206483000000019956132746301591396331787109375
}
}- Duration: 5h 10m
- Radius: 608 meters
- Data Points: 24 AIS positions
- Centroid: 34.6978, 33.3551
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 607.700000000000045474735088646411895751953125,
"duration_minutes": 310.8999999999999772626324556767940521240234375,
"points": 24,
"centroid": {
"lat": 34.69780908749999781548467581160366535186767578125,
"lon": 33.35514034999999921637936495244503021240234375
},
"bbox": {
"min_lat": 34.69671670000000318623278872109949588775634765625,
"min_lon": 33.348534999999998262865119613707065582275390625,
"max_lat": 34.69902830000000193422238226048648357391357421875,
"max_lon": 33.355919999999997571649146266281604766845703125
},
"zone_id": "discovered_039"
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 34m
- Data Points: 32 AIS positions
- Period: 2026-10-31T04:24:37+00:00 to 2026-10-31T10:59:34+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 394.8999999999999772626324556767940521240234375,
"points_in_zone": 32,
"first_point": {
"ts": "2026-10-31T04:24:37+00:00",
"lat": 34.69675500000000312184056383557617664337158203125,
"lon": 33.3555266999999986410330166108906269073486328125
},
"last_point": {
"ts": "2026-10-31T10:59:34+00:00",
"lat": 34.70771669999999886613295529969036579132080078125,
"lon": 33.3206167000000021971573005430400371551513671875
}
}- Duration: 6h 10m
- Radius: 614 meters
- Data Points: 27 AIS positions
- Centroid: 34.6977, 33.3552
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 613.6000000000000227373675443232059478759765625,
"duration_minutes": 370.8999999999999772626324556767940521240234375,
"points": 27,
"centroid": {
"lat": 34.69769276666666968367280787788331508636474609375,
"lon": 33.35519092962963583204327733255922794342041015625
},
"bbox": {
"min_lat": 34.69671670000000318623278872109949588775634765625,
"min_lon": 33.348534999999998262865119613707065582275390625,
"max_lat": 34.69902830000000193422238226048648357391357421875,
"max_lon": 33.355919999999997571649146266281604766845703125
},
"zone_id": "discovered_039"
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 32m
- Data Points: 30 AIS positions
- Period: 2026-10-31T03:57:34+00:00 to 2026-10-31T10:29:43+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 392.1000000000000227373675443232059478759765625,
"points_in_zone": 30,
"first_point": {
"ts": "2026-10-31T03:57:34+00:00",
"lat": 34.69683830000000313020791509188711643218994140625,
"lon": 33.355666700000000446379999630153179168701171875
},
"last_point": {
"ts": "2026-10-31T10:29:43+00:00",
"lat": 34.70403999999999911096892901696264743804931640625,
"lon": 33.334706699999998136263457126915454864501953125
}
}- Duration: 6h 14m
- Radius: 616 meters
- Data Points: 28 AIS positions
- Centroid: 34.6977, 33.3552
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 615.6000000000000227373675443232059478759765625,
"duration_minutes": 374,
"points": 28,
"centroid": {
"lat": 34.69766225000000048339643399231135845184326171875,
"lon": 33.35520792142857970929981092922389507293701171875
},
"bbox": {
"min_lat": 34.69671670000000318623278872109949588775634765625,
"min_lon": 33.348534999999998262865119613707065582275390625,
"max_lat": 34.69902830000000193422238226048648357391357421875,
"max_lon": 33.355919999999997571649146266281604766845703125
},
"zone_id": "discovered_039"
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 21m
- Data Points: 25 AIS positions
- Period: 2026-10-31T02:39:40+00:00 to 2026-10-31T09:00:39+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 381,
"points_in_zone": 25,
"first_point": {
"ts": "2026-10-31T02:39:40+00:00",
"lat": 34.69689000000000334011929226107895374298095703125,
"lon": 33.35567499999999796500560478307306766510009765625
},
"last_point": {
"ts": "2026-10-31T09:00:39+00:00",
"lat": 34.69898330000000186146280611865222454071044921875,
"lon": 33.35509330000000005611582309938967227935791015625
}
}- Duration: 6h 21m
- Radius: 191 meters
- Data Points: 25 AIS positions
- Centroid: 34.6973, 33.3556
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 190.69999999999998863131622783839702606201171875,
"duration_minutes": 381,
"points": 25,
"centroid": {
"lat": 34.6973349240000032978059607557952404022216796875,
"lon": 33.3556004759999922271163086406886577606201171875
},
"bbox": {
"min_lat": 34.6967082999999973935700836591422557830810546875,
"min_lon": 33.35507499999999936335370875895023345947265625,
"max_lat": 34.698998299999999517240212298929691314697265625,
"max_lon": 33.355919999999997571649146266281604766845703125
},
"zone_id": "discovered_039"
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 18m
- Data Points: 22 AIS positions
- Period: 2026-10-31T01:45:37+00:00 to 2026-10-31T08:03:36+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 378,
"points_in_zone": 22,
"first_point": {
"ts": "2026-10-31T01:45:37+00:00",
"lat": 34.69681829999999678193489671684801578521728515625,
"lon": 33.355698300000000244835973717272281646728515625
},
"last_point": {
"ts": "2026-10-31T08:03:36+00:00",
"lat": 34.698610000000002173692337237298488616943359375,
"lon": 33.355535000000003265085979364812374114990234375
}
}- Duration: 6h 18m
- Radius: 177 meters
- Data Points: 22 AIS positions
- Centroid: 34.6970, 33.3557
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 177.19999999999998863131622783839702606201171875,
"duration_minutes": 378,
"points": 22,
"centroid": {
"lat": 34.697017186363638074908521957695484161376953125,
"lon": 33.355683722727263784690876491367816925048828125
},
"bbox": {
"min_lat": 34.6967082999999973935700836591422557830810546875,
"min_lon": 33.3555266999999986410330166108906269073486328125,
"max_lat": 34.698610000000002173692337237298488616943359375,
"max_lon": 33.355919999999997571649146266281604766845703125
},
"zone_id": "discovered_039"
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 33m
- Data Points: 25 AIS positions
- Period: 2026-10-31T00:54:39+00:00 to 2026-10-31T07:27:43+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 393.1000000000000227373675443232059478759765625,
"points_in_zone": 25,
"first_point": {
"ts": "2026-10-31T00:54:39+00:00",
"lat": 34.696781700000002501838025636970996856689453125,
"lon": 33.355621700000000373620423488318920135498046875
},
"last_point": {
"ts": "2026-10-31T07:27:43+00:00",
"lat": 34.6981133000000028232534532435238361358642578125,
"lon": 33.355919999999997571649146266281604766845703125
}
}- Duration: 6h 33m
- Radius: 136 meters
- Data Points: 25 AIS positions
- Centroid: 34.6969, 33.3557
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 135.69999999999998863131622783839702606201171875,
"duration_minutes": 393.1000000000000227373675443232059478759765625,
"points": 25,
"centroid": {
"lat": 34.6969069240000038689686334691941738128662109375,
"lon": 33.35567207599999761669096187688410282135009765625
},
"bbox": {
"min_lat": 34.696674999999999045030563138425350189208984375,
"min_lon": 33.3555233000000015408659237436950206756591796875,
"max_lat": 34.6981133000000028232534532435238361358642578125,
"max_lon": 33.355919999999997571649146266281604766845703125
},
"zone_id": "discovered_039"
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 27m
- Data Points: 23 AIS positions
- Period: 2026-10-30T23:36:34+00:00 to 2026-10-31T06:03:34+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 387,
"points_in_zone": 23,
"first_point": {
"ts": "2026-10-30T23:36:34+00:00",
"lat": 34.6969466999999980316715664230287075042724609375,
"lon": 33.355801700000000664658728055655956268310546875
},
"last_point": {
"ts": "2026-10-31T06:03:34+00:00",
"lat": 34.69675670000000167192411026917397975921630859375,
"lon": 33.35554669999999788387867738492786884307861328125
}
}- Duration: 6h 27m
- Radius: 24 meters
- Data Points: 23 AIS positions
- Centroid: 34.6968, 33.3557
- Zone: Northern Baltic Sea Surveillance Zone
Show Raw Evidence JSON
{
"radius_m": 24,
"duration_minutes": 387,
"points": 23,
"centroid": {
"lat": 34.6968272434782676327813533134758472442626953125,
"lon": 33.35566413913043248840040178038179874420166015625
},
"bbox": {
"min_lat": 34.696674999999999045030563138425350189208984375,
"min_lon": 33.3555233000000015408659237436950206756591796875,
"max_lat": 34.6969916999999981044311425648629665374755859375,
"max_lon": 33.35585669999999680612745578400790691375732421875
},
"zone_id": "discovered_039"
}- Zone: Northern Baltic Sea Surveillance Zone
- Duration: 6h 27m
- Data Points: 23 AIS positions
- Period: 2026-10-30T22:48:34+00:00 to 2026-10-31T05:15:40+00:00
Show Raw Evidence JSON
{
"zone_id": "discovered_039",
"zone_name": "Northern Baltic Sea Surveillance Zone",
"dwell_minutes": 387.1000000000000227373675443232059478759765625,
"points_in_zone": 23,
"first_point": {
"ts": "2026-10-30T22:48:34+00:00",
"lat": 34.6970017000000012785676517523825168609619140625,
"lon": 33.35580499999999659621607861481606960296630859375
},
"last_point": {
"ts": "2026-10-31T05:15:40+00:00",
"lat": 34.69697330000000334848664351738989353179931640625,
"lon": 33.35585669999999680612745578400790691375732421875
}
}Recent Position Data
| Time (UTC) | Lat | Lon | Speed | Course | Zone |
|---|---|---|---|---|---|
| Nov 1 12:34 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 12:04 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 11:53 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 11:37 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 11:29 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 11:17 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 10:53 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 10:32 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 08:50 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 08:38 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 08:17 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 07:59 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 07:04 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 06:46 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 05:11 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 05:04 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 04:52 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 04:46 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 04:40 | 34.7077 | 33.3205 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
| Nov 1 04:22 | 34.7077 | 33.3206 | 0.0 kn | 97.0° | Northern Baltic Sea Surveillance Zone |
Showing 20 of 100 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.
