Intelligence Feed - FleetLeaks

Sts Prigorodnoye/Sakhalin LNG

Jun 4, 2026 02:26 UTC 85/100 ▼

Vessel A: IMO 9004310 (ORIS) TOGO

Vessel B: IMO 9043794 (PERSEY) RUSSIA

Minimum Distance: 12 meters
Average Distance: 20 meters
Duration: 1h 27m
Period: 2026-06-04T02:26:49+00:00 to 2026-06-04T03:53:51+00:00
Vessel A Avg Speed: 0.3 knots
Vessel B Avg Speed: 0.2 knots
Zone: Prigorodnoye/Sakhalin LNG

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (ORIS and PERSEY) maintained close proximity (min 12m, avg 20m) for 87 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye/Sakhalin LNG, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 12m, avg 20m
Duration	15/25	Duration 87 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±9m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 671388100,
        "imo": 9004310,
        "name": "ORIS",
        "flag": "TOGO"
    },
    "vessel_b": {
        "mmsi": 273358480,
        "imo": 9043794,
        "name": "PERSEY",
        "flag": "RUSSIA"
    },
    "min_distance_m": 12,
    "avg_distance_m": 19.5,
    "distance_consistency_m": 8.800000000000000710542735760100185871124267578125,
    "duration_minutes": 87,
    "overlap_duration_s": 5222,
    "speed_a_avg": 0.25,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.2399999999999999911182158029987476766109466552734375,
    "speed_b_std": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.25,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.2399999999999999911182158029987476766109466552734375,
            "max_sog": 0.8000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-06-04T02:26:49+00:00",
        "end": "2026-06-04T03:53:51+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 12m, avg 20m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 87 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b19m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ORIS and PERSEY) maintained close proximity (min 12m, avg 20m) for 87 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}

Methodology: 2026.01.18

Sts Sakhalin South Approach

Jun 4, 2026 02:26 UTC 85/100 ▼

Vessel A: IMO 9004310 (ORIS) TOGO

Vessel B: IMO 9043794 (PERSEY) RUSSIA

Minimum Distance: 12 meters
Average Distance: 20 meters
Duration: 1h 27m
Period: 2026-06-04T02:26:49+00:00 to 2026-06-04T03:53:51+00:00
Vessel A Avg Speed: 0.3 knots
Vessel B Avg Speed: 0.2 knots
Zone: Sakhalin South Approach

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (ORIS and PERSEY) maintained close proximity (min 12m, avg 20m) for 87 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 12m, avg 20m
Duration	15/25	Duration 87 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±9m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 671388100,
        "imo": 9004310,
        "name": "ORIS",
        "flag": "TOGO"
    },
    "vessel_b": {
        "mmsi": 273358480,
        "imo": 9043794,
        "name": "PERSEY",
        "flag": "RUSSIA"
    },
    "min_distance_m": 12,
    "avg_distance_m": 19.5,
    "distance_consistency_m": 8.800000000000000710542735760100185871124267578125,
    "duration_minutes": 87,
    "overlap_duration_s": 5222,
    "speed_a_avg": 0.25,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.2399999999999999911182158029987476766109466552734375,
    "speed_b_std": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.25,
            "max_sog": 0.5
        },
        "vessel_b": {
            "avg_sog": 0.2399999999999999911182158029987476766109466552734375,
            "max_sog": 0.8000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-06-04T02:26:49+00:00",
        "end": "2026-06-04T03:53:51+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 12m, avg 20m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 87 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b19m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ORIS and PERSEY) maintained close proximity (min 12m, avg 20m) for 87 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.2 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 21:02 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 39m
Data Points: 20 AIS positions
Period: 2026-06-03T21:20:46+00:00 to 2026-06-04T03:59:50+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 399.1000000000000227373675443232059478759765625,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-06-03T21:20:46+00:00",
        "lat": 46.3981332999999978028426994569599628448486328125,
        "lon": 142.73255330000000640211510471999645233154296875
    },
    "last_point": {
        "ts": "2026-06-04T03:59:50+00:00",
        "lat": 46.397193299999997861959855072200298309326171875,
        "lon": 142.73296329999999443316482938826084136962890625
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 21:02 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 39m
Data Points: 20 AIS positions
Period: 2026-06-03T21:20:46+00:00 to 2026-06-04T03:59:50+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 399.1000000000000227373675443232059478759765625,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-06-03T21:20:46+00:00",
        "lat": 46.3981332999999978028426994569599628448486328125,
        "lon": 142.73255330000000640211510471999645233154296875
    },
    "last_point": {
        "ts": "2026-06-04T03:59:50+00:00",
        "lat": 46.397193299999997861959855072200298309326171875,
        "lon": 142.73296329999999443316482938826084136962890625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 21:02 UTC 75.0% ▼

Duration: 6h 39m
Radius: 118 meters
Data Points: 20 AIS positions
Centroid: 46.3975, 142.7335
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 118,
    "duration_minutes": 399.1000000000000227373675443232059478759765625,
    "points": 20,
    "centroid": {
        "lat": 46.3974505050000090022876975126564502716064453125,
        "lon": 142.733488244999961125358822755515575408935546875
    },
    "bbox": {
        "min_lat": 46.3967999999999989313437254168093204498291015625,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.398151699999999664214556105434894561767578125,
        "max_lon": 142.734700000000003683453542180359363555908203125
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 21:02 UTC 75.0% ▼

Duration: 6h 39m
Radius: 118 meters
Data Points: 20 AIS positions
Centroid: 46.3975, 142.7335
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 118,
    "duration_minutes": 399.1000000000000227373675443232059478759765625,
    "points": 20,
    "centroid": {
        "lat": 46.3974505050000090022876975126564502716064453125,
        "lon": 142.733488244999961125358822755515575408935546875
    },
    "bbox": {
        "min_lat": 46.3967999999999989313437254168093204498291015625,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.398151699999999664214556105434894561767578125,
        "max_lon": 142.734700000000003683453542180359363555908203125
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 20:20 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 30m
Data Points: 19 AIS positions
Period: 2026-06-03T20:50:46+00:00 to 2026-06-04T03:20:50+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-06-03T20:50:46+00:00",
        "lat": 46.39807669999999717447281000204384326934814453125,
        "lon": 142.73264330000000654763425700366497039794921875
    },
    "last_point": {
        "ts": "2026-06-04T03:20:50+00:00",
        "lat": 46.39699170000000094660208560526371002197265625,
        "lon": 142.734318300000012413875083439052104949951171875
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 20:20 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 30m
Data Points: 19 AIS positions
Period: 2026-06-03T20:50:46+00:00 to 2026-06-04T03:20:50+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-06-03T20:50:46+00:00",
        "lat": 46.39807669999999717447281000204384326934814453125,
        "lon": 142.73264330000000654763425700366497039794921875
    },
    "last_point": {
        "ts": "2026-06-04T03:20:50+00:00",
        "lat": 46.39699170000000094660208560526371002197265625,
        "lon": 142.734318300000012413875083439052104949951171875
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 20:20 UTC 75.0% ▼

Duration: 6h 30m
Radius: 136 meters
Data Points: 19 AIS positions
Centroid: 46.3976, 142.7334
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 136,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 19,
    "centroid": {
        "lat": 46.397620184210524030277156271040439605712890625,
        "lon": 142.733387799999974276943248696625232696533203125
    },
    "bbox": {
        "min_lat": 46.3967999999999989313437254168093204498291015625,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.398151699999999664214556105434894561767578125,
        "max_lon": 142.734700000000003683453542180359363555908203125
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 20:20 UTC 75.0% ▼

Duration: 6h 30m
Radius: 136 meters
Data Points: 19 AIS positions
Centroid: 46.3976, 142.7334
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 136,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 19,
    "centroid": {
        "lat": 46.397620184210524030277156271040439605712890625,
        "lon": 142.733387799999974276943248696625232696533203125
    },
    "bbox": {
        "min_lat": 46.3967999999999989313437254168093204498291015625,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.398151699999999664214556105434894561767578125,
        "max_lon": 142.734700000000003683453542180359363555908203125
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 19:05 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 30m
Data Points: 17 AIS positions
Period: 2026-06-03T19:20:46+00:00 to 2026-06-04T01:50:49+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-06-03T19:20:46+00:00",
        "lat": 46.39783829999999653637132723815739154815673828125,
        "lon": 142.73273829999999406936694867908954620361328125
    },
    "last_point": {
        "ts": "2026-06-04T01:50:49+00:00",
        "lat": 46.3977033000000034235199564136564731597900390625,
        "lon": 142.73305329999999457868398167192935943603515625
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 19:05 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 30m
Data Points: 17 AIS positions
Period: 2026-06-03T19:20:46+00:00 to 2026-06-04T01:50:49+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-06-03T19:20:46+00:00",
        "lat": 46.39783829999999653637132723815739154815673828125,
        "lon": 142.73273829999999406936694867908954620361328125
    },
    "last_point": {
        "ts": "2026-06-04T01:50:49+00:00",
        "lat": 46.3977033000000034235199564136564731597900390625,
        "lon": 142.73305329999999457868398167192935943603515625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 19:05 UTC 75.0% ▼

Duration: 6h 30m
Radius: 48 meters
Data Points: 17 AIS positions
Centroid: 46.3980, 142.7327
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 48.2000000000000028421709430404007434844970703125,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 17,
    "centroid": {
        "lat": 46.398049405882346718499320559203624725341796875,
        "lon": 142.732676070588212269285577349364757537841796875
    },
    "bbox": {
        "min_lat": 46.3977033000000034235199564136564731597900390625,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.73305329999999457868398167192935943603515625
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 19:05 UTC 75.0% ▼

Duration: 6h 30m
Radius: 48 meters
Data Points: 17 AIS positions
Centroid: 46.3980, 142.7327
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 48.2000000000000028421709430404007434844970703125,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 17,
    "centroid": {
        "lat": 46.398049405882346718499320559203624725341796875,
        "lon": 142.732676070588212269285577349364757537841796875
    },
    "bbox": {
        "min_lat": 46.3977033000000034235199564136564731597900390625,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.73305329999999457868398167192935943603515625
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 18:32 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 33m
Data Points: 23 AIS positions
Period: 2026-06-03T18:32:45+00:00 to 2026-06-04T01:05:49+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-06-03T18:32:45+00:00",
        "lat": 46.398110000000002628439688123762607574462890625,
        "lon": 142.732619999999997162376530468463897705078125
    },
    "last_point": {
        "ts": "2026-06-04T01:05:49+00:00",
        "lat": 46.39782670000000308618837152607738971710205078125,
        "lon": 142.73286669999998821367626078426837921142578125
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 18:32 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 33m
Data Points: 23 AIS positions
Period: 2026-06-03T18:32:45+00:00 to 2026-06-04T01:05:49+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-06-03T18:32:45+00:00",
        "lat": 46.398110000000002628439688123762607574462890625,
        "lon": 142.732619999999997162376530468463897705078125
    },
    "last_point": {
        "ts": "2026-06-04T01:05:49+00:00",
        "lat": 46.39782670000000308618837152607738971710205078125,
        "lon": 142.73286669999998821367626078426837921142578125
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 18:32 UTC 75.0% ▼

Duration: 6h 33m
Radius: 31 meters
Data Points: 23 AIS positions
Centroid: 46.3981, 142.7327
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 31.10000000000000142108547152020037174224853515625,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 23,
    "centroid": {
        "lat": 46.39806528695653042859703418798744678497314453125,
        "lon": 142.732654995652183060883544385433197021484375
    },
    "bbox": {
        "min_lat": 46.39782670000000308618837152607738971710205078125,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.73286669999998821367626078426837921142578125
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 18:32 UTC 75.0% ▼

Duration: 6h 33m
Radius: 31 meters
Data Points: 23 AIS positions
Centroid: 46.3981, 142.7327
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 31.10000000000000142108547152020037174224853515625,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 23,
    "centroid": {
        "lat": 46.39806528695653042859703418798744678497314453125,
        "lon": 142.732654995652183060883544385433197021484375
    },
    "bbox": {
        "min_lat": 46.39782670000000308618837152607738971710205078125,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.73286669999998821367626078426837921142578125
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 17:17 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 4h 30m
Data Points: 24 AIS positions
Period: 2026-06-03T17:17:45+00:00 to 2026-06-03T21:47:47+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 270,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-06-03T17:17:45+00:00",
        "lat": 46.397913299999999026113073341548442840576171875,
        "lon": 142.732638299999990749711287207901477813720703125
    },
    "last_point": {
        "ts": "2026-06-03T21:47:47+00:00",
        "lat": 46.39812169999999724723238614387810230255126953125,
        "lon": 142.732638299999990749711287207901477813720703125
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 17:17 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 4h 30m
Data Points: 24 AIS positions
Period: 2026-06-03T17:17:45+00:00 to 2026-06-03T21:47:47+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 270,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-06-03T17:17:45+00:00",
        "lat": 46.397913299999999026113073341548442840576171875,
        "lon": 142.732638299999990749711287207901477813720703125
    },
    "last_point": {
        "ts": "2026-06-03T21:47:47+00:00",
        "lat": 46.39812169999999724723238614387810230255126953125,
        "lon": 142.732638299999990749711287207901477813720703125
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 17:17 UTC 75.0% ▼

Duration: 4h 30m
Radius: 26 meters
Data Points: 24 AIS positions
Centroid: 46.3981, 142.7326
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 25.60000000000000142108547152020037174224853515625,
    "duration_minutes": 270,
    "points": 24,
    "centroid": {
        "lat": 46.398059716666665508455480448901653289794921875,
        "lon": 142.732648049999994555037119425833225250244140625
    },
    "bbox": {
        "min_lat": 46.39783829999999653637132723815739154815673828125,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.732834999999994352037901990115642547607421875
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 17:17 UTC 75.0% ▼

Duration: 4h 30m
Radius: 26 meters
Data Points: 24 AIS positions
Centroid: 46.3981, 142.7326
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 25.60000000000000142108547152020037174224853515625,
    "duration_minutes": 270,
    "points": 24,
    "centroid": {
        "lat": 46.398059716666665508455480448901653289794921875,
        "lon": 142.732648049999994555037119425833225250244140625
    },
    "bbox": {
        "min_lat": 46.39783829999999653637132723815739154815673828125,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.732834999999994352037901990115642547607421875
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 16:59 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 4h 48m
Data Points: 25 AIS positions
Period: 2026-06-03T16:59:44+00:00 to 2026-06-03T21:47:47+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 288.1000000000000227373675443232059478759765625,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-06-03T16:59:44+00:00",
        "lat": 46.39798669999999702895365771837532520294189453125,
        "lon": 142.732801700000010214353096671402454376220703125
    },
    "last_point": {
        "ts": "2026-06-03T21:47:47+00:00",
        "lat": 46.39812169999999724723238614387810230255126953125,
        "lon": 142.732638299999990749711287207901477813720703125
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 16:59 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 4h 48m
Data Points: 25 AIS positions
Period: 2026-06-03T16:59:44+00:00 to 2026-06-03T21:47:47+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 288.1000000000000227373675443232059478759765625,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-06-03T16:59:44+00:00",
        "lat": 46.39798669999999702895365771837532520294189453125,
        "lon": 142.732801700000010214353096671402454376220703125
    },
    "last_point": {
        "ts": "2026-06-03T21:47:47+00:00",
        "lat": 46.39812169999999724723238614387810230255126953125,
        "lon": 142.732638299999990749711287207901477813720703125
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 16:59 UTC 75.0% ▼

Duration: 4h 48m
Radius: 25 meters
Data Points: 25 AIS positions
Centroid: 46.3981, 142.7327
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 25.10000000000000142108547152020037174224853515625,
    "duration_minutes": 288.1000000000000227373675443232059478759765625,
    "points": 25,
    "centroid": {
        "lat": 46.39805679599999876927540753968060016632080078125,
        "lon": 142.7326541959999985920148901641368865966796875
    },
    "bbox": {
        "min_lat": 46.39783829999999653637132723815739154815673828125,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.732834999999994352037901990115642547607421875
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 16:59 UTC 75.0% ▼

Duration: 4h 48m
Radius: 25 meters
Data Points: 25 AIS positions
Centroid: 46.3981, 142.7327
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 25.10000000000000142108547152020037174224853515625,
    "duration_minutes": 288.1000000000000227373675443232059478759765625,
    "points": 25,
    "centroid": {
        "lat": 46.39805679599999876927540753968060016632080078125,
        "lon": 142.7326541959999985920148901641368865966796875
    },
    "bbox": {
        "min_lat": 46.39783829999999653637132723815739154815673828125,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.732834999999994352037901990115642547607421875
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 15:17 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 30m
Data Points: 28 AIS positions
Period: 2026-06-03T15:17:43+00:00 to 2026-06-03T21:47:47+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-06-03T15:17:43+00:00",
        "lat": 46.39815829999999863275661482475697994232177734375,
        "lon": 142.733165000000013833414413966238498687744140625
    },
    "last_point": {
        "ts": "2026-06-03T21:47:47+00:00",
        "lat": 46.39812169999999724723238614387810230255126953125,
        "lon": 142.732638299999990749711287207901477813720703125
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 15:17 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 30m
Data Points: 28 AIS positions
Period: 2026-06-03T15:17:43+00:00 to 2026-06-03T21:47:47+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-06-03T15:17:43+00:00",
        "lat": 46.39815829999999863275661482475697994232177734375,
        "lon": 142.733165000000013833414413966238498687744140625
    },
    "last_point": {
        "ts": "2026-06-03T21:47:47+00:00",
        "lat": 46.39812169999999724723238614387810230255126953125,
        "lon": 142.732638299999990749711287207901477813720703125
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 15:17 UTC 75.0% ▼

Duration: 6h 30m
Radius: 37 meters
Data Points: 28 AIS positions
Centroid: 46.3981, 142.7327
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 36.7999999999999971578290569595992565155029296875,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 28,
    "centroid": {
        "lat": 46.39806939999999713108991272747516632080078125,
        "lon": 142.73270446071427386414143256843090057373046875
    },
    "bbox": {
        "min_lat": 46.39783829999999653637132723815739154815673828125,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.733165000000013833414413966238498687744140625
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 15:17 UTC 75.0% ▼

Duration: 6h 30m
Radius: 37 meters
Data Points: 28 AIS positions
Centroid: 46.3981, 142.7327
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 36.7999999999999971578290569595992565155029296875,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 28,
    "centroid": {
        "lat": 46.39806939999999713108991272747516632080078125,
        "lon": 142.73270446071427386414143256843090057373046875
    },
    "bbox": {
        "min_lat": 46.39783829999999653637132723815739154815673828125,
        "min_lon": 142.73255330000000640211510471999645233154296875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.733165000000013833414413966238498687744140625
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 14:35 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 27m
Data Points: 23 AIS positions
Period: 2026-06-03T14:35:43+00:00 to 2026-06-03T21:02:46+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-06-03T14:35:43+00:00",
        "lat": 46.3979532999999975118043948896229267120361328125,
        "lon": 142.733505000000008067218004725873470306396484375
    },
    "last_point": {
        "ts": "2026-06-03T21:02:46+00:00",
        "lat": 46.39812830000000332120180246420204639434814453125,
        "lon": 142.73259500000000343788997270166873931884765625
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 14:35 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 27m
Data Points: 23 AIS positions
Period: 2026-06-03T14:35:43+00:00 to 2026-06-03T21:02:46+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-06-03T14:35:43+00:00",
        "lat": 46.3979532999999975118043948896229267120361328125,
        "lon": 142.733505000000008067218004725873470306396484375
    },
    "last_point": {
        "ts": "2026-06-03T21:02:46+00:00",
        "lat": 46.39812830000000332120180246420204639434814453125,
        "lon": 142.73259500000000343788997270166873931884765625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 14:35 UTC 75.0% ▼

Duration: 6h 27m
Radius: 58 meters
Data Points: 23 AIS positions
Centroid: 46.3981, 142.7328
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 58.2999999999999971578290569595992565155029296875,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 23,
    "centroid": {
        "lat": 46.3980552826086949380623991601169109344482421875,
        "lon": 142.732761447826078438083641231060028076171875
    },
    "bbox": {
        "min_lat": 46.39783829999999653637132723815739154815673828125,
        "min_lon": 142.732564999999993915480445139110088348388671875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.733505000000008067218004725873470306396484375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 14:35 UTC 75.0% ▼

Duration: 6h 27m
Radius: 58 meters
Data Points: 23 AIS positions
Centroid: 46.3981, 142.7328
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 58.2999999999999971578290569595992565155029296875,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 23,
    "centroid": {
        "lat": 46.3980552826086949380623991601169109344482421875,
        "lon": 142.732761447826078438083641231060028076171875
    },
    "bbox": {
        "min_lat": 46.39783829999999653637132723815739154815673828125,
        "min_lon": 142.732564999999993915480445139110088348388671875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.733505000000008067218004725873470306396484375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 13:53 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 33m
Data Points: 22 AIS positions
Period: 2026-06-03T13:53:42+00:00 to 2026-06-03T20:26:46+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-06-03T13:53:42+00:00",
        "lat": 46.39810829999999697292878408916294574737548828125,
        "lon": 142.73345000000000482032191939651966094970703125
    },
    "last_point": {
        "ts": "2026-06-03T20:26:46+00:00",
        "lat": 46.39818170000000208119672606699168682098388671875,
        "lon": 142.732626699999997299528331495821475982666015625
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 13:53 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 33m
Data Points: 22 AIS positions
Period: 2026-06-03T13:53:42+00:00 to 2026-06-03T20:26:46+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-06-03T13:53:42+00:00",
        "lat": 46.39810829999999697292878408916294574737548828125,
        "lon": 142.73345000000000482032191939651966094970703125
    },
    "last_point": {
        "ts": "2026-06-03T20:26:46+00:00",
        "lat": 46.39818170000000208119672606699168682098388671875,
        "lon": 142.732626699999997299528331495821475982666015625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 13:53 UTC 75.0% ▼

Duration: 6h 33m
Radius: 55 meters
Data Points: 22 AIS positions
Centroid: 46.3981, 142.7328
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 54.89999999999999857891452847979962825775146484375,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 22,
    "centroid": {
        "lat": 46.39805340000000200006979866884648799896240234375,
        "lon": 142.732805681818177845343598164618015289306640625
    },
    "bbox": {
        "min_lat": 46.39783829999999653637132723815739154815673828125,
        "min_lon": 142.732564999999993915480445139110088348388671875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.733505000000008067218004725873470306396484375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 13:53 UTC 75.0% ▼

Duration: 6h 33m
Radius: 55 meters
Data Points: 22 AIS positions
Centroid: 46.3981, 142.7328
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 54.89999999999999857891452847979962825775146484375,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 22,
    "centroid": {
        "lat": 46.39805340000000200006979866884648799896240234375,
        "lon": 142.732805681818177845343598164618015289306640625
    },
    "bbox": {
        "min_lat": 46.39783829999999653637132723815739154815673828125,
        "min_lon": 142.732564999999993915480445139110088348388671875,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.733505000000008067218004725873470306396484375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 12:08 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 30m
Data Points: 15 AIS positions
Period: 2026-06-03T12:38:42+00:00 to 2026-06-03T19:08:46+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-06-03T12:38:42+00:00",
        "lat": 46.398138299999999389910954050719738006591796875,
        "lon": 142.7335166999999955805833451449871063232421875
    },
    "last_point": {
        "ts": "2026-06-03T19:08:46+00:00",
        "lat": 46.397971699999999373176251538097858428955078125,
        "lon": 142.732678300000003446257323957979679107666015625
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 12:08 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 30m
Data Points: 15 AIS positions
Period: 2026-06-03T12:38:42+00:00 to 2026-06-03T19:08:46+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-06-03T12:38:42+00:00",
        "lat": 46.398138299999999389910954050719738006591796875,
        "lon": 142.7335166999999955805833451449871063232421875
    },
    "last_point": {
        "ts": "2026-06-03T19:08:46+00:00",
        "lat": 46.397971699999999373176251538097858428955078125,
        "lon": 142.732678300000003446257323957979679107666015625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 12:08 UTC 75.0% ▼

Duration: 6h 30m
Radius: 46 meters
Data Points: 15 AIS positions
Centroid: 46.3981, 142.7329
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 46.10000000000000142108547152020037174224853515625,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 15,
    "centroid": {
        "lat": 46.3980546599999996715268935076892375946044921875,
        "lon": 142.73292911333334131995798088610172271728515625
    },
    "bbox": {
        "min_lat": 46.39784499999999667352312826551496982574462890625,
        "min_lon": 142.732589999999987639967002905905246734619140625,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.7335166999999955805833451449871063232421875
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 12:08 UTC 75.0% ▼

Duration: 6h 30m
Radius: 46 meters
Data Points: 15 AIS positions
Centroid: 46.3981, 142.7329
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 46.10000000000000142108547152020037174224853515625,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 15,
    "centroid": {
        "lat": 46.3980546599999996715268935076892375946044921875,
        "lon": 142.73292911333334131995798088610172271728515625
    },
    "bbox": {
        "min_lat": 46.39784499999999667352312826551496982574462890625,
        "min_lon": 142.732589999999987639967002905905246734619140625,
        "max_lat": 46.3981950000000011868905858136713504791259765625,
        "max_lon": 142.7335166999999955805833451449871063232421875
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 11:02 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 36m
Data Points: 18 AIS positions
Period: 2026-06-03T11:02:41+00:00 to 2026-06-03T17:38:45+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-06-03T11:02:41+00:00",
        "lat": 46.399578300000001718217390589416027069091796875,
        "lon": 142.734949999999997771737980656325817108154296875
    },
    "last_point": {
        "ts": "2026-06-03T17:38:45+00:00",
        "lat": 46.39784499999999667352312826551496982574462890625,
        "lon": 142.732716699999997445047483779489994049072265625
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 11:02 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 36m
Data Points: 18 AIS positions
Period: 2026-06-03T11:02:41+00:00 to 2026-06-03T17:38:45+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-06-03T11:02:41+00:00",
        "lat": 46.399578300000001718217390589416027069091796875,
        "lon": 142.734949999999997771737980656325817108154296875
    },
    "last_point": {
        "ts": "2026-06-03T17:38:45+00:00",
        "lat": 46.39784499999999667352312826551496982574462890625,
        "lon": 142.732716699999997445047483779489994049072265625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 11:02 UTC 75.0% ▼

Duration: 6h 36m
Radius: 156 meters
Data Points: 18 AIS positions
Centroid: 46.3986, 142.7336
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 156,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 18,
    "centroid": {
        "lat": 46.3985554611111155054459231905639171600341796875,
        "lon": 142.73356129999996255719452165067195892333984375
    },
    "bbox": {
        "min_lat": 46.39784499999999667352312826551496982574462890625,
        "min_lon": 142.732638299999990749711287207901477813720703125,
        "max_lat": 46.399578300000001718217390589416027069091796875,
        "max_lon": 142.734949999999997771737980656325817108154296875
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 11:02 UTC 75.0% ▼

Duration: 6h 36m
Radius: 156 meters
Data Points: 18 AIS positions
Centroid: 46.3986, 142.7336
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 156,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 18,
    "centroid": {
        "lat": 46.3985554611111155054459231905639171600341796875,
        "lon": 142.73356129999996255719452165067195892333984375
    },
    "bbox": {
        "min_lat": 46.39784499999999667352312826551496982574462890625,
        "min_lon": 142.732638299999990749711287207901477813720703125,
        "max_lat": 46.399578300000001718217390589416027069091796875,
        "max_lon": 142.734949999999997771737980656325817108154296875
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 10:29 UTC 75.0% ▼

Duration: 6h 33m
Radius: 161 meters
Data Points: 20 AIS positions
Centroid: 46.3987, 142.7339
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 161.400000000000005684341886080801486968994140625,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 20,
    "centroid": {
        "lat": 46.398741080000007741546141915023326873779296875,
        "lon": 142.733854500000006737536750733852386474609375
    },
    "bbox": {
        "min_lat": 46.397913299999999026113073341548442840576171875,
        "min_lon": 142.732638299999990749711287207901477813720703125,
        "max_lat": 46.3997183000000035235643736086785793304443359375,
        "max_lon": 142.7354066999999986364855431020259857177734375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 10:29 UTC 75.0% ▼

Duration: 6h 33m
Radius: 161 meters
Data Points: 20 AIS positions
Centroid: 46.3987, 142.7339
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 161.400000000000005684341886080801486968994140625,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 20,
    "centroid": {
        "lat": 46.398741080000007741546141915023326873779296875,
        "lon": 142.733854500000006737536750733852386474609375
    },
    "bbox": {
        "min_lat": 46.397913299999999026113073341548442840576171875,
        "min_lon": 142.732638299999990749711287207901477813720703125,
        "max_lat": 46.3997183000000035235643736086785793304443359375,
        "max_lon": 142.7354066999999986364855431020259857177734375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 10:07 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 33m
Data Points: 20 AIS positions
Period: 2026-06-03T10:44:41+00:00 to 2026-06-03T17:17:45+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-06-03T10:44:41+00:00",
        "lat": 46.3997183000000035235643736086785793304443359375,
        "lon": 142.7354066999999986364855431020259857177734375
    },
    "last_point": {
        "ts": "2026-06-03T17:17:45+00:00",
        "lat": 46.397913299999999026113073341548442840576171875,
        "lon": 142.732638299999990749711287207901477813720703125
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 10:07 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 33m
Data Points: 20 AIS positions
Period: 2026-06-03T10:44:41+00:00 to 2026-06-03T17:17:45+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-06-03T10:44:41+00:00",
        "lat": 46.3997183000000035235643736086785793304443359375,
        "lon": 142.7354066999999986364855431020259857177734375
    },
    "last_point": {
        "ts": "2026-06-03T17:17:45+00:00",
        "lat": 46.397913299999999026113073341548442840576171875,
        "lon": 142.732638299999990749711287207901477813720703125
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 09:01 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 30m
Data Points: 31 AIS positions
Period: 2026-06-03T09:25:49+00:00 to 2026-06-03T15:56:44+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390.8999999999999772626324556767940521240234375,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-06-03T09:25:49+00:00",
        "lat": 46.39741500000000229420038522221148014068603515625,
        "lon": 142.74624000000000023646862246096134185791015625
    },
    "last_point": {
        "ts": "2026-06-03T15:56:44+00:00",
        "lat": 46.3981950000000011868905858136713504791259765625,
        "lon": 142.733059999999994715835782699286937713623046875
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 09:01 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 30m
Data Points: 31 AIS positions
Period: 2026-06-03T09:25:49+00:00 to 2026-06-03T15:56:44+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390.8999999999999772626324556767940521240234375,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-06-03T09:25:49+00:00",
        "lat": 46.39741500000000229420038522221148014068603515625,
        "lon": 142.74624000000000023646862246096134185791015625
    },
    "last_point": {
        "ts": "2026-06-03T15:56:44+00:00",
        "lat": 46.3981950000000011868905858136713504791259765625,
        "lon": 142.733059999999994715835782699286937713623046875
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 09:01 UTC 75.0% ▼

Duration: 6h 30m
Radius: 666 meters
Data Points: 31 AIS positions
Centroid: 46.3984, 142.7379
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 665.5,
    "duration_minutes": 390.8999999999999772626324556767940521240234375,
    "points": 31,
    "centroid": {
        "lat": 46.3984189806451610138537944294512271881103515625,
        "lon": 142.737917309677442290194449014961719512939453125
    },
    "bbox": {
        "min_lat": 46.3973749999999967030817060731351375579833984375,
        "min_lon": 142.733059999999994715835782699286937713623046875,
        "max_lat": 46.3997650000000021464074961841106414794921875,
        "max_lon": 142.74650500000001329681253992021083831787109375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 09:01 UTC 75.0% ▼

Duration: 6h 30m
Radius: 666 meters
Data Points: 31 AIS positions
Centroid: 46.3984, 142.7379
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 665.5,
    "duration_minutes": 390.8999999999999772626324556767940521240234375,
    "points": 31,
    "centroid": {
        "lat": 46.3984189806451610138537944294512271881103515625,
        "lon": 142.737917309677442290194449014961719512939453125
    },
    "bbox": {
        "min_lat": 46.3973749999999967030817060731351375579833984375,
        "min_lon": 142.733059999999994715835782699286937713623046875,
        "max_lat": 46.3997650000000021464074961841106414794921875,
        "max_lon": 142.74650500000001329681253992021083831787109375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 08:01 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 24m
Data Points: 37 AIS positions
Period: 2026-06-03T08:58:49+00:00 to 2026-06-03T15:23:43+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 384.8999999999999772626324556767940521240234375,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-06-03T08:58:49+00:00",
        "lat": 46.3973799999999982901499606668949127197265625,
        "lon": 142.7447217000000136977178044617176055908203125
    },
    "last_point": {
        "ts": "2026-06-03T15:23:43+00:00",
        "lat": 46.39817000000000035697667044587433338165283203125,
        "lon": 142.733145000000007485141395591199398040771484375
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 08:01 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 24m
Data Points: 37 AIS positions
Period: 2026-06-03T08:58:49+00:00 to 2026-06-03T15:23:43+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 384.8999999999999772626324556767940521240234375,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-06-03T08:58:49+00:00",
        "lat": 46.3973799999999982901499606668949127197265625,
        "lon": 142.7447217000000136977178044617176055908203125
    },
    "last_point": {
        "ts": "2026-06-03T15:23:43+00:00",
        "lat": 46.39817000000000035697667044587433338165283203125,
        "lon": 142.733145000000007485141395591199398040771484375
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 08:01 UTC 75.0% ▼

Duration: 6h 24m
Radius: 542 meters
Data Points: 37 AIS positions
Centroid: 46.3982, 142.7396
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 542.299999999999954525264911353588104248046875,
    "duration_minutes": 384.8999999999999772626324556767940521240234375,
    "points": 37,
    "centroid": {
        "lat": 46.39823517837837840716019854880869388580322265625,
        "lon": 142.73956373783784101760829798877239227294921875
    },
    "bbox": {
        "min_lat": 46.3973749999999967030817060731351375579833984375,
        "min_lon": 142.733145000000007485141395591199398040771484375,
        "max_lat": 46.3997650000000021464074961841106414794921875,
        "max_lon": 142.746511700000013433964340947568416595458984375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 08:01 UTC 75.0% ▼

Duration: 6h 24m
Radius: 542 meters
Data Points: 37 AIS positions
Centroid: 46.3982, 142.7396
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 542.299999999999954525264911353588104248046875,
    "duration_minutes": 384.8999999999999772626324556767940521240234375,
    "points": 37,
    "centroid": {
        "lat": 46.39823517837837840716019854880869388580322265625,
        "lon": 142.73956373783784101760829798877239227294921875
    },
    "bbox": {
        "min_lat": 46.3973749999999967030817060731351375579833984375,
        "min_lon": 142.733145000000007485141395591199398040771484375,
        "max_lat": 46.3997650000000021464074961841106414794921875,
        "max_lon": 142.746511700000013433964340947568416595458984375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 07:01 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 15m
Data Points: 47 AIS positions
Period: 2026-06-03T07:37:48+00:00 to 2026-06-03T13:53:42+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 375.8999999999999772626324556767940521240234375,
    "points_in_zone": 47,
    "first_point": {
        "ts": "2026-06-03T07:37:48+00:00",
        "lat": 46.4008917000000025154804461635649204254150390625,
        "lon": 142.7547283000000106767402030527591705322265625
    },
    "last_point": {
        "ts": "2026-06-03T13:53:42+00:00",
        "lat": 46.39810829999999697292878408916294574737548828125,
        "lon": 142.73345000000000482032191939651966094970703125
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 07:01 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 15m
Data Points: 47 AIS positions
Period: 2026-06-03T07:37:48+00:00 to 2026-06-03T13:53:42+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 375.8999999999999772626324556767940521240234375,
    "points_in_zone": 47,
    "first_point": {
        "ts": "2026-06-03T07:37:48+00:00",
        "lat": 46.4008917000000025154804461635649204254150390625,
        "lon": 142.7547283000000106767402030527591705322265625
    },
    "last_point": {
        "ts": "2026-06-03T13:53:42+00:00",
        "lat": 46.39810829999999697292878408916294574737548828125,
        "lon": 142.73345000000000482032191939651966094970703125
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 07:01 UTC 75.0% ▼

Duration: 6h 15m
Radius: 942 meters
Data Points: 47 AIS positions
Centroid: 46.3986, 142.7430
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 941.5,
    "duration_minutes": 375.8999999999999772626324556767940521240234375,
    "points": 47,
    "centroid": {
        "lat": 46.3986417042553256351311574690043926239013671875,
        "lon": 142.743044746808521949787973426282405853271484375
    },
    "bbox": {
        "min_lat": 46.3972049999999995861799106933176517486572265625,
        "min_lon": 142.73345000000000482032191939651966094970703125,
        "max_lat": 46.40114330000000109066604636609554290771484375,
        "max_lon": 142.75475829999999177744030021131038665771484375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 07:01 UTC 75.0% ▼

Duration: 6h 15m
Radius: 942 meters
Data Points: 47 AIS positions
Centroid: 46.3986, 142.7430
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 941.5,
    "duration_minutes": 375.8999999999999772626324556767940521240234375,
    "points": 47,
    "centroid": {
        "lat": 46.3986417042553256351311574690043926239013671875,
        "lon": 142.743044746808521949787973426282405853271484375
    },
    "bbox": {
        "min_lat": 46.3972049999999995861799106933176517486572265625,
        "min_lon": 142.73345000000000482032191939651966094970703125,
        "max_lat": 46.40114330000000109066604636609554290771484375,
        "max_lon": 142.75475829999999177744030021131038665771484375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 06:01 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 36m
Data Points: 65 AIS positions
Period: 2026-06-03T06:01:47+00:00 to 2026-06-03T12:38:42+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 396.8999999999999772626324556767940521240234375,
    "points_in_zone": 65,
    "first_point": {
        "ts": "2026-06-03T06:01:47+00:00",
        "lat": 46.4014767000000034613549360074102878570556640625,
        "lon": 142.754086699999987786213750950992107391357421875
    },
    "last_point": {
        "ts": "2026-06-03T12:38:42+00:00",
        "lat": 46.398138299999999389910954050719738006591796875,
        "lon": 142.7335166999999955805833451449871063232421875
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 06:01 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 36m
Data Points: 65 AIS positions
Period: 2026-06-03T06:01:47+00:00 to 2026-06-03T12:38:42+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 396.8999999999999772626324556767940521240234375,
    "points_in_zone": 65,
    "first_point": {
        "ts": "2026-06-03T06:01:47+00:00",
        "lat": 46.4014767000000034613549360074102878570556640625,
        "lon": 142.754086699999987786213750950992107391357421875
    },
    "last_point": {
        "ts": "2026-06-03T12:38:42+00:00",
        "lat": 46.398138299999999389910954050719738006591796875,
        "lon": 142.7335166999999955805833451449871063232421875
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 06:01 UTC 75.0% ▼

Duration: 6h 36m
Radius: 1,005 meters
Data Points: 65 AIS positions
Centroid: 46.3994, 142.7464
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 1004.700000000000045474735088646411895751953125,
    "duration_minutes": 396.8999999999999772626324556767940521240234375,
    "points": 65,
    "centroid": {
        "lat": 46.39943746307692862274052458815276622772216796875,
        "lon": 142.7464448661538654050673358142375946044921875
    },
    "bbox": {
        "min_lat": 46.3972049999999995861799106933176517486572265625,
        "min_lon": 142.7335166999999955805833451449871063232421875,
        "max_lat": 46.40149670000000270420059678144752979278564453125,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 06:01 UTC 75.0% ▼

Duration: 6h 36m
Radius: 1,005 meters
Data Points: 65 AIS positions
Centroid: 46.3994, 142.7464
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 1004.700000000000045474735088646411895751953125,
    "duration_minutes": 396.8999999999999772626324556767940521240234375,
    "points": 65,
    "centroid": {
        "lat": 46.39943746307692862274052458815276622772216796875,
        "lon": 142.7464448661538654050673358142375946044921875
    },
    "bbox": {
        "min_lat": 46.3972049999999995861799106933176517486572265625,
        "min_lon": 142.7335166999999955805833451449871063232421875,
        "max_lat": 46.40149670000000270420059678144752979278564453125,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 05:04 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 30m
Data Points: 67 AIS positions
Period: 2026-06-03T05:52:47+00:00 to 2026-06-03T12:23:42+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390.8999999999999772626324556767940521240234375,
    "points_in_zone": 67,
    "first_point": {
        "ts": "2026-06-03T05:52:47+00:00",
        "lat": 46.40140170000000097161318990401923656463623046875,
        "lon": 142.753971699999993916208040900528430938720703125
    },
    "last_point": {
        "ts": "2026-06-03T12:23:42+00:00",
        "lat": 46.39869999999999805595507496036589145660400390625,
        "lon": 142.7337033000000019455910660326480865478515625
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 05:04 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 30m
Data Points: 67 AIS positions
Period: 2026-06-03T05:52:47+00:00 to 2026-06-03T12:23:42+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390.8999999999999772626324556767940521240234375,
    "points_in_zone": 67,
    "first_point": {
        "ts": "2026-06-03T05:52:47+00:00",
        "lat": 46.40140170000000097161318990401923656463623046875,
        "lon": 142.753971699999993916208040900528430938720703125
    },
    "last_point": {
        "ts": "2026-06-03T12:23:42+00:00",
        "lat": 46.39869999999999805595507496036589145660400390625,
        "lon": 142.7337033000000019455910660326480865478515625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 05:04 UTC 75.0% ▼

Duration: 6h 30m
Radius: 1,025 meters
Data Points: 67 AIS positions
Centroid: 46.3995, 142.7470
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 1025.09999999999990905052982270717620849609375,
    "duration_minutes": 390.8999999999999772626324556767940521240234375,
    "points": 67,
    "centroid": {
        "lat": 46.399546719402991357128485105931758880615234375,
        "lon": 142.7469762880597272669547237455844879150390625
    },
    "bbox": {
        "min_lat": 46.3972049999999995861799106933176517486572265625,
        "min_lon": 142.733699999999998908606357872486114501953125,
        "max_lat": 46.40149670000000270420059678144752979278564453125,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 05:04 UTC 75.0% ▼

Duration: 6h 30m
Radius: 1,025 meters
Data Points: 67 AIS positions
Centroid: 46.3995, 142.7470
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 1025.09999999999990905052982270717620849609375,
    "duration_minutes": 390.8999999999999772626324556767940521240234375,
    "points": 67,
    "centroid": {
        "lat": 46.399546719402991357128485105931758880615234375,
        "lon": 142.7469762880597272669547237455844879150390625
    },
    "bbox": {
        "min_lat": 46.3972049999999995861799106933176517486572265625,
        "min_lon": 142.733699999999998908606357872486114501953125,
        "max_lat": 46.40149670000000270420059678144752979278564453125,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 04:04 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 30m
Data Points: 72 AIS positions
Period: 2026-06-03T04:52:46+00:00 to 2026-06-03T11:23:41+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390.8999999999999772626324556767940521240234375,
    "points_in_zone": 72,
    "first_point": {
        "ts": "2026-06-03T04:52:46+00:00",
        "lat": 46.40149670000000270420059678144752979278564453125,
        "lon": 142.754068300000000135696609504520893096923828125
    },
    "last_point": {
        "ts": "2026-06-03T11:23:41+00:00",
        "lat": 46.39918999999999726924215792678296566009521484375,
        "lon": 142.733775000000008503775461576879024505615234375
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 04:04 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 30m
Data Points: 72 AIS positions
Period: 2026-06-03T04:52:46+00:00 to 2026-06-03T11:23:41+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390.8999999999999772626324556767940521240234375,
    "points_in_zone": 72,
    "first_point": {
        "ts": "2026-06-03T04:52:46+00:00",
        "lat": 46.40149670000000270420059678144752979278564453125,
        "lon": 142.754068300000000135696609504520893096923828125
    },
    "last_point": {
        "ts": "2026-06-03T11:23:41+00:00",
        "lat": 46.39918999999999726924215792678296566009521484375,
        "lon": 142.733775000000008503775461576879024505615234375
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 04:04 UTC 75.0% ▼

Duration: 6h 13m
Radius: 792 meters
Data Points: 72 AIS positions
Centroid: 46.4001, 142.7515
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 791.700000000000045474735088646411895751953125,
    "duration_minutes": 373.80000000000001136868377216160297393798828125,
    "points": 72,
    "centroid": {
        "lat": 46.4001475708333401826166664250195026397705078125,
        "lon": 142.75154228749994445024640299379825592041015625
    },
    "bbox": {
        "min_lat": 46.3972049999999995861799106933176517486572265625,
        "min_lon": 142.7419399999999995998223312199115753173828125,
        "max_lat": 46.40157169999999808851498528383672237396240234375,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 04:04 UTC 75.0% ▼

Duration: 6h 13m
Radius: 792 meters
Data Points: 72 AIS positions
Centroid: 46.4001, 142.7515
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 791.700000000000045474735088646411895751953125,
    "duration_minutes": 373.80000000000001136868377216160297393798828125,
    "points": 72,
    "centroid": {
        "lat": 46.4001475708333401826166664250195026397705078125,
        "lon": 142.75154228749994445024640299379825592041015625
    },
    "bbox": {
        "min_lat": 46.3972049999999995861799106933176517486572265625,
        "min_lon": 142.7419399999999995998223312199115753173828125,
        "max_lat": 46.40157169999999808851498528383672237396240234375,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 03:01 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 30m
Data Points: 75 AIS positions
Period: 2026-06-03T03:58:46+00:00 to 2026-06-03T10:29:41+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390.8999999999999772626324556767940521240234375,
    "points_in_zone": 75,
    "first_point": {
        "ts": "2026-06-03T03:58:46+00:00",
        "lat": 46.40135000000000076170181273482739925384521484375,
        "lon": 142.754076700000013033786672167479991912841796875
    },
    "last_point": {
        "ts": "2026-06-03T10:29:41+00:00",
        "lat": 46.3986517000000020516381482593715190887451171875,
        "lon": 142.734958299999988184936228208243846893310546875
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 03:01 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 30m
Data Points: 75 AIS positions
Period: 2026-06-03T03:58:46+00:00 to 2026-06-03T10:29:41+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390.8999999999999772626324556767940521240234375,
    "points_in_zone": 75,
    "first_point": {
        "ts": "2026-06-03T03:58:46+00:00",
        "lat": 46.40135000000000076170181273482739925384521484375,
        "lon": 142.754076700000013033786672167479991912841796875
    },
    "last_point": {
        "ts": "2026-06-03T10:29:41+00:00",
        "lat": 46.3986517000000020516381482593715190887451171875,
        "lon": 142.734958299999988184936228208243846893310546875
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 03:01 UTC 75.0% ▼

Duration: 6h 37m
Radius: 801 meters
Data Points: 75 AIS positions
Centroid: 46.4002, 142.7516
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 800.700000000000045474735088646411895751953125,
    "duration_minutes": 397.80000000000001136868377216160297393798828125,
    "points": 75,
    "centroid": {
        "lat": 46.40020291200001878451075754128396511077880859375,
        "lon": 142.75163703999993458637618459761142730712890625
    },
    "bbox": {
        "min_lat": 46.3972049999999995861799106933176517486572265625,
        "min_lon": 142.7419399999999995998223312199115753173828125,
        "max_lat": 46.40165329999999954679879010654985904693603515625,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 03:01 UTC 75.0% ▼

Duration: 6h 37m
Radius: 801 meters
Data Points: 75 AIS positions
Centroid: 46.4002, 142.7516
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 800.700000000000045474735088646411895751953125,
    "duration_minutes": 397.80000000000001136868377216160297393798828125,
    "points": 75,
    "centroid": {
        "lat": 46.40020291200001878451075754128396511077880859375,
        "lon": 142.75163703999993458637618459761142730712890625
    },
    "bbox": {
        "min_lat": 46.3972049999999995861799106933176517486572265625,
        "min_lon": 142.7419399999999995998223312199115753173828125,
        "max_lat": 46.40165329999999954679879010654985904693603515625,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 02:10 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 36m
Data Points: 77 AIS positions
Period: 2026-06-03T02:52:46+00:00 to 2026-06-03T09:28:49+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 77,
    "first_point": {
        "ts": "2026-06-03T02:52:46+00:00",
        "lat": 46.40161669999999816127456142567098140716552734375,
        "lon": 142.75375170000000935033312998712062835693359375
    },
    "last_point": {
        "ts": "2026-06-03T09:28:49+00:00",
        "lat": 46.39740499999999912006387603469192981719970703125,
        "lon": 142.746354999999994106474332511425018310546875
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 02:10 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 36m
Data Points: 77 AIS positions
Period: 2026-06-03T02:52:46+00:00 to 2026-06-03T09:28:49+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 77,
    "first_point": {
        "ts": "2026-06-03T02:52:46+00:00",
        "lat": 46.40161669999999816127456142567098140716552734375,
        "lon": 142.75375170000000935033312998712062835693359375
    },
    "last_point": {
        "ts": "2026-06-03T09:28:49+00:00",
        "lat": 46.39740499999999912006387603469192981719970703125,
        "lon": 142.746354999999994106474332511425018310546875
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 02:10 UTC 75.0% ▼

Duration: 6h 36m
Radius: 846 meters
Data Points: 77 AIS positions
Centroid: 46.4007, 142.7525
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 845.6000000000000227373675443232059478759765625,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 77,
    "centroid": {
        "lat": 46.4006707129870363814916345290839672088623046875,
        "lon": 142.7525354298701358857215382158756256103515625
    },
    "bbox": {
        "min_lat": 46.3972049999999995861799106933176517486572265625,
        "min_lon": 142.742559999999997444319888018071651458740234375,
        "max_lat": 46.40179669999999845231286599300801753997802734375,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 02:10 UTC 75.0% ▼

Duration: 6h 36m
Radius: 846 meters
Data Points: 77 AIS positions
Centroid: 46.4007, 142.7525
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 845.6000000000000227373675443232059478759765625,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 77,
    "centroid": {
        "lat": 46.4006707129870363814916345290839672088623046875,
        "lon": 142.7525354298701358857215382158756256103515625
    },
    "bbox": {
        "min_lat": 46.3972049999999995861799106933176517486572265625,
        "min_lon": 142.742559999999997444319888018071651458740234375,
        "max_lat": 46.40179669999999845231286599300801753997802734375,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 01:07 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 27m
Data Points: 73 AIS positions
Period: 2026-06-03T01:55:45+00:00 to 2026-06-03T08:22:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 73,
    "first_point": {
        "ts": "2026-06-03T01:55:45+00:00",
        "lat": 46.4017132999999972753357724286615848541259765625,
        "lon": 142.753131700000011505835573188960552215576171875
    },
    "last_point": {
        "ts": "2026-06-03T08:22:48+00:00",
        "lat": 46.39902670000000028949216357432305812835693359375,
        "lon": 142.750913300000007666312740184366703033447265625
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 01:07 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 27m
Data Points: 73 AIS positions
Period: 2026-06-03T01:55:45+00:00 to 2026-06-03T08:22:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 73,
    "first_point": {
        "ts": "2026-06-03T01:55:45+00:00",
        "lat": 46.4017132999999972753357724286615848541259765625,
        "lon": 142.753131700000011505835573188960552215576171875
    },
    "last_point": {
        "ts": "2026-06-03T08:22:48+00:00",
        "lat": 46.39902670000000028949216357432305812835693359375,
        "lon": 142.750913300000007666312740184366703033447265625
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 01:07 UTC 75.0% ▼

Duration: 6h 27m
Radius: 353 meters
Data Points: 73 AIS positions
Centroid: 46.4014, 142.7540
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 353,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 73,
    "centroid": {
        "lat": 46.4013830589041162966168485581874847412109375,
        "lon": 142.753991161643824625571141950786113739013671875
    },
    "bbox": {
        "min_lat": 46.39902670000000028949216357432305812835693359375,
        "min_lon": 142.750913300000007666312740184366703033447265625,
        "max_lat": 46.40203999999999950887286104261875152587890625,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 01:07 UTC 75.0% ▼

Duration: 6h 27m
Radius: 353 meters
Data Points: 73 AIS positions
Centroid: 46.4014, 142.7540
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 353,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 73,
    "centroid": {
        "lat": 46.4013830589041162966168485581874847412109375,
        "lon": 142.753991161643824625571141950786113739013671875
    },
    "bbox": {
        "min_lat": 46.39902670000000028949216357432305812835693359375,
        "min_lon": 142.750913300000007666312740184366703033447265625,
        "max_lat": 46.40203999999999950887286104261875152587890625,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 3, 2026 00:28 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 39m
Data Points: 77 AIS positions
Period: 2026-06-03T00:40:44+00:00 to 2026-06-03T07:19:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 399.1000000000000227373675443232059478759765625,
    "points_in_zone": 77,
    "first_point": {
        "ts": "2026-06-03T00:40:44+00:00",
        "lat": 46.40166330000000272093529929406940937042236328125,
        "lon": 142.752153300000003355307853780686855316162109375
    },
    "last_point": {
        "ts": "2026-06-03T07:19:48+00:00",
        "lat": 46.40102999999999866531652514822781085968017578125,
        "lon": 142.754764999999991914592101238667964935302734375
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 3, 2026 00:28 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 39m
Data Points: 77 AIS positions
Period: 2026-06-03T00:40:44+00:00 to 2026-06-03T07:19:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 399.1000000000000227373675443232059478759765625,
    "points_in_zone": 77,
    "first_point": {
        "ts": "2026-06-03T00:40:44+00:00",
        "lat": 46.40166330000000272093529929406940937042236328125,
        "lon": 142.752153300000003355307853780686855316162109375
    },
    "last_point": {
        "ts": "2026-06-03T07:19:48+00:00",
        "lat": 46.40102999999999866531652514822781085968017578125,
        "lon": 142.754764999999991914592101238667964935302734375
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 3, 2026 00:28 UTC 75.0% ▼

Duration: 6h 39m
Radius: 122 meters
Data Points: 77 AIS positions
Centroid: 46.4015, 142.7537
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 121.7999999999999971578290569595992565155029296875,
    "duration_minutes": 399.1000000000000227373675443232059478759765625,
    "points": 77,
    "centroid": {
        "lat": 46.401525258441552068688906729221343994140625,
        "lon": 142.753724867532497455613338388502597808837890625
    },
    "bbox": {
        "min_lat": 46.40102999999999866531652514822781085968017578125,
        "min_lon": 142.752153300000003355307853780686855316162109375,
        "max_lat": 46.40203999999999950887286104261875152587890625,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 3, 2026 00:28 UTC 75.0% ▼

Duration: 6h 39m
Radius: 122 meters
Data Points: 77 AIS positions
Centroid: 46.4015, 142.7537
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 121.7999999999999971578290569595992565155029296875,
    "duration_minutes": 399.1000000000000227373675443232059478759765625,
    "points": 77,
    "centroid": {
        "lat": 46.401525258441552068688906729221343994140625,
        "lon": 142.753724867532497455613338388502597808837890625
    },
    "bbox": {
        "min_lat": 46.40102999999999866531652514822781085968017578125,
        "min_lon": 142.752153300000003355307853780686855316162109375,
        "max_lat": 46.40203999999999950887286104261875152587890625,
        "max_lon": 142.754764999999991914592101238667964935302734375
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 2, 2026 23:52 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 36m
Data Points: 66 AIS positions
Period: 2026-06-02T23:52:44+00:00 to 2026-06-03T06:28:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 66,
    "first_point": {
        "ts": "2026-06-02T23:52:44+00:00",
        "lat": 46.40126169999999916626620688475668430328369140625,
        "lon": 142.751249999999998863131622783839702606201171875
    },
    "last_point": {
        "ts": "2026-06-03T06:28:48+00:00",
        "lat": 46.4014566999999971130819176323711872100830078125,
        "lon": 142.75402170000000978689058683812618255615234375
    }
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 2, 2026 23:52 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 36m
Data Points: 66 AIS positions
Period: 2026-06-02T23:52:44+00:00 to 2026-06-03T06:28:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 66,
    "first_point": {
        "ts": "2026-06-02T23:52:44+00:00",
        "lat": 46.40126169999999916626620688475668430328369140625,
        "lon": 142.751249999999998863131622783839702606201171875
    },
    "last_point": {
        "ts": "2026-06-03T06:28:48+00:00",
        "lat": 46.4014566999999971130819176323711872100830078125,
        "lon": 142.75402170000000978689058683812618255615234375
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 2, 2026 23:52 UTC 75.0% ▼

Duration: 6h 36m
Radius: 181 meters
Data Points: 66 AIS positions
Centroid: 46.4016, 142.7536
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 180.599999999999994315658113919198513031005859375,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 66,
    "centroid": {
        "lat": 46.4015727787878660137721453793346881866455078125,
        "lon": 142.753554695454596412673708982765674591064453125
    },
    "bbox": {
        "min_lat": 46.40126000000000061618266045115888118743896484375,
        "min_lon": 142.751249999999998863131622783839702606201171875,
        "max_lat": 46.40203999999999950887286104261875152587890625,
        "max_lon": 142.75420669999999745414243079721927642822265625
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 2, 2026 23:52 UTC 75.0% ▼

Duration: 6h 36m
Radius: 181 meters
Data Points: 66 AIS positions
Centroid: 46.4016, 142.7536
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 180.599999999999994315658113919198513031005859375,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 66,
    "centroid": {
        "lat": 46.4015727787878660137721453793346881866455078125,
        "lon": 142.753554695454596412673708982765674591064453125
    },
    "bbox": {
        "min_lat": 46.40126000000000061618266045115888118743896484375,
        "min_lon": 142.751249999999998863131622783839702606201171875,
        "max_lat": 46.40203999999999950887286104261875152587890625,
        "max_lon": 142.75420669999999745414243079721927642822265625
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 2, 2026 22:43 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 27m
Data Points: 55 AIS positions
Period: 2026-06-02T22:58:44+00:00 to 2026-06-03T05:25:47+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 55,
    "first_point": {
        "ts": "2026-06-02T22:58:44+00:00",
        "lat": 46.40089499999999844703779672272503376007080078125,
        "lon": 142.75128169999999272476998157799243927001953125
    },
    "last_point": {
        "ts": "2026-06-03T05:25:47+00:00",
        "lat": 46.4013182999999997946360963396728038787841796875,
        "lon": 142.754043300000006411210051737725734710693359375
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 2, 2026 22:43 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 27m
Data Points: 55 AIS positions
Period: 2026-06-02T22:58:44+00:00 to 2026-06-03T05:25:47+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 55,
    "first_point": {
        "ts": "2026-06-02T22:58:44+00:00",
        "lat": 46.40089499999999844703779672272503376007080078125,
        "lon": 142.75128169999999272476998157799243927001953125
    },
    "last_point": {
        "ts": "2026-06-03T05:25:47+00:00",
        "lat": 46.4013182999999997946360963396728038787841796875,
        "lon": 142.754043300000006411210051737725734710693359375
    }
}

Methodology: 2026.01.18

Loiter Prigorodnoye/Sakhalin LNG

Jun 2, 2026 22:43 UTC 75.0% ▼

Duration: 6h 27m
Radius: 181 meters
Data Points: 55 AIS positions
Centroid: 46.4016, 142.7534
Zone: Prigorodnoye/Sakhalin LNG

Show Raw Evidence JSON

{
    "radius_m": 180.80000000000001136868377216160297393798828125,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 55,
    "centroid": {
        "lat": 46.40159133272726421637344174087047576904296875,
        "lon": 142.7534065745454654461354948580265045166015625
    },
    "bbox": {
        "min_lat": 46.40089499999999844703779672272503376007080078125,
        "min_lon": 142.751249999999998863131622783839702606201171875,
        "max_lat": 46.40203999999999950887286104261875152587890625,
        "max_lon": 142.75420669999999745414243079721927642822265625
    },
    "zone_id": "russia_prigorodnoye"
}

Methodology: 2026.01.18

Loiter Sakhalin South Approach

Jun 2, 2026 22:43 UTC 75.0% ▼

Duration: 6h 27m
Radius: 181 meters
Data Points: 55 AIS positions
Centroid: 46.4016, 142.7534
Zone: Sakhalin South Approach

Show Raw Evidence JSON

{
    "radius_m": 180.80000000000001136868377216160297393798828125,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 55,
    "centroid": {
        "lat": 46.40159133272726421637344174087047576904296875,
        "lon": 142.7534065745454654461354948580265045166015625
    },
    "bbox": {
        "min_lat": 46.40089499999999844703779672272503376007080078125,
        "min_lon": 142.751249999999998863131622783839702606201171875,
        "max_lat": 46.40203999999999950887286104261875152587890625,
        "max_lon": 142.75420669999999745414243079721927642822265625
    },
    "zone_id": "russia_sakhalin_south"
}

Methodology: 2026.01.18

Zone Dwell Sakhalin South Approach

Jun 2, 2026 20:01 UTC 80.0% ▼

Zone: Sakhalin South Approach
Duration: 6h 30m
Data Points: 33 AIS positions
Period: 2026-06-02T20:37:42+00:00 to 2026-06-03T03:07:45+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-06-02T20:37:42+00:00",
        "lat": 46.4013532999999966932591632939875125885009765625,
        "lon": 142.751253300000001900116330944001674652099609375
    },
    "last_point": {
        "ts": "2026-06-03T03:07:45+00:00",
        "lat": 46.4017233000000004494722816161811351776123046875,
        "lon": 142.7537800000000061118043959140777587890625
    }
}

Methodology: 2026.01.18

Zone Dwell Prigorodnoye/Sakhalin LNG

Jun 2, 2026 20:01 UTC 80.0% ▼

Zone: Prigorodnoye/Sakhalin LNG
Duration: 6h 30m
Data Points: 33 AIS positions
Period: 2026-06-02T20:37:42+00:00 to 2026-06-03T03:07:45+00:00

Show Raw Evidence JSON

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-06-02T20:37:42+00:00",
        "lat": 46.4013532999999966932591632939875125885009765625,
        "lon": 142.751253300000001900116330944001674652099609375
    },
    "last_point": {
        "ts": "2026-06-03T03:07:45+00:00",
        "lat": 46.4017233000000004494722816161811351776123046875,
        "lon": 142.7537800000000061118043959140777587890625
    }
}

Methodology: 2026.01.18

ORIS

IMO 9004310

Vessel information

Detected Events (100)

Confidence Analysis

Confidence Analysis

Recent Position Data

Data Source

Time (UTC)	Lat	Lon	Speed	Course	Zone
Jun 4 03:59	46.3972	142.7330	0.4 kn	349.4°	Prigorodnoye/Sakhalin LNG
Jun 4 03:53	46.3971	142.7331	0.3 kn	224.2°	Prigorodnoye/Sakhalin LNG
Jun 4 03:41	46.3972	142.7336	0.2 kn	336.8°	Prigorodnoye/Sakhalin LNG
Jun 4 03:38	46.3971	142.7337	0.3 kn	337.8°	Prigorodnoye/Sakhalin LNG
Jun 4 03:20	46.3970	142.7343	0.1 kn	209.0°	Prigorodnoye/Sakhalin LNG
Jun 4 03:14	46.3971	142.7343	0.1 kn	289.8°	Prigorodnoye/Sakhalin LNG
Jun 4 03:08	46.3971	142.7344	0.1 kn	289.8°	Prigorodnoye/Sakhalin LNG
Jun 4 03:05	46.3971	142.7346	0.2 kn	309.4°	Prigorodnoye/Sakhalin LNG
Jun 4 02:50	46.3968	142.7347	0.2 kn	132.0°	Prigorodnoye/Sakhalin LNG
Jun 4 02:47	46.3970	142.7344	0.3 kn	143.0°	Prigorodnoye/Sakhalin LNG
Jun 4 02:44	46.3973	142.7342	0.5 kn	147.9°	Prigorodnoye/Sakhalin LNG
Jun 4 02:32	46.3976	142.7332	0.5 kn	351.4°	Prigorodnoye/Sakhalin LNG
Jun 4 02:26	46.3975	142.7334	0.2 kn	92.2°	Prigorodnoye/Sakhalin LNG
Jun 4 01:50	46.3977	142.7331	0.2 kn	60.9°	Prigorodnoye/Sakhalin LNG
Jun 4 01:05	46.3978	142.7329	0.2 kn	62.2°	Prigorodnoye/Sakhalin LNG
Jun 3 21:47	46.3981	142.7326	0.2 kn	324.7°	Prigorodnoye/Sakhalin LNG
Jun 3 21:44	46.3980	142.7326	0.2 kn	304.1°	Prigorodnoye/Sakhalin LNG
Jun 3 21:26	46.3982	142.7326	0.2 kn	261.5°	Prigorodnoye/Sakhalin LNG
Jun 3 21:23	46.3981	142.7326	0.1 kn	90.5°	Prigorodnoye/Sakhalin LNG
Jun 3 21:20	46.3981	142.7326	0.1 kn	286.3°	Prigorodnoye/Sakhalin LNG

ORIS

IMO 9004310

Vessel information

Detected Events (100)

Confidence Analysis

Confidence Analysis

Recent Position Data

Data Source

Support FleetLeaks

Thank you!

Something went wrong