OKEAN

IMO 9142916

Vessel information

Vessel Name OKEAN
IMO Number 9142916
MMSI 273378580
Vessel Type Tanker
Flag 🇷🇺 RUSSIA
Call Sign UBQN2
Length 98 m
Beam 16 m

Sanction Status

⚠️ This vessel is sanctioned.

View Full Sanctions Details →

Detected Events (100)

Sts Prigorodnoye/Sakhalin LNG
Oct 28, 2026 11:30 UTC 80/100 ▼
Vessel A: Okean (OKEAN) RUSSIA
Vessel B: Omsk (OMSK) Russia
  • Minimum Distance: 5 meters
  • Average Distance: 23 meters
  • Duration: 1h 25m
  • Period: 2026-10-28T11:58:42+00:00 to 2026-10-28T13:23:56+00:00
  • Vessel A Avg Speed: 1.0 knots
  • Vessel B Avg Speed: 0.7 knots
  • Zone: Prigorodnoye/Sakhalin LNG

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (OKEAN and OMSK) maintained close proximity (min 5m, avg 23m) for 85 minutes. Both vessels were slow-moving (avg speeds 1.0 and 0.7 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
FactorScoreDetail
Distance Tightness25/25Min distance 5m, avg 23m
Duration15/25Duration 85 minutes
Speed Stability15/20both very slow; stable speeds
Distance Consistency15/15Distance variance ±23m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273378580,
        "imo": 9142916,
        "name": "OKEAN",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "min_distance_m": 5,
    "avg_distance_m": 23.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 22.699999999999999289457264239899814128875732421875,
    "duration_minutes": 85.2000000000000028421709430404007434844970703125,
    "overlap_duration_s": 5114,
    "speed_a_avg": 0.95999999999999996447286321199499070644378662109375,
    "speed_a_std": 0.4899999999999999911182158029987476766109466552734375,
    "speed_b_avg": 0.6999999999999999555910790149937383830547332763671875,
    "speed_b_std": 0.38000000000000000444089209850062616169452667236328125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.95999999999999996447286321199499070644378662109375,
            "max_sog": 1.8000000000000000444089209850062616169452667236328125
        },
        "vessel_b": {
            "avg_sog": 0.6999999999999999555910790149937383830547332763671875,
            "max_sog": 1.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-10-28T11:58:42+00:00",
        "end": "2026-10-28T13:23:56+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 5m, avg 23m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 85 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both very slow; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b123m"
            },
            "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 (OKEAN and OMSK) maintained close proximity (min 5m, avg 23m) for 85 minutes. Both vessels were slow-moving (avg speeds 1.0 and 0.7 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
Oct 28, 2026 11:30 UTC 80/100 ▼
Vessel A: Okean (OKEAN) RUSSIA
Vessel B: Omsk (OMSK) Russia
  • Minimum Distance: 5 meters
  • Average Distance: 23 meters
  • Duration: 1h 25m
  • Period: 2026-10-28T11:58:42+00:00 to 2026-10-28T13:23:56+00:00
  • Vessel A Avg Speed: 1.0 knots
  • Vessel B Avg Speed: 0.7 knots
  • Zone: Sakhalin South Approach

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (OKEAN and OMSK) maintained close proximity (min 5m, avg 23m) for 85 minutes. Both vessels were slow-moving (avg speeds 1.0 and 0.7 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
FactorScoreDetail
Distance Tightness25/25Min distance 5m, avg 23m
Duration15/25Duration 85 minutes
Speed Stability15/20both very slow; stable speeds
Distance Consistency15/15Distance variance ±23m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273378580,
        "imo": 9142916,
        "name": "OKEAN",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "min_distance_m": 5,
    "avg_distance_m": 23.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 22.699999999999999289457264239899814128875732421875,
    "duration_minutes": 85.2000000000000028421709430404007434844970703125,
    "overlap_duration_s": 5114,
    "speed_a_avg": 0.95999999999999996447286321199499070644378662109375,
    "speed_a_std": 0.4899999999999999911182158029987476766109466552734375,
    "speed_b_avg": 0.6999999999999999555910790149937383830547332763671875,
    "speed_b_std": 0.38000000000000000444089209850062616169452667236328125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.95999999999999996447286321199499070644378662109375,
            "max_sog": 1.8000000000000000444089209850062616169452667236328125
        },
        "vessel_b": {
            "avg_sog": 0.6999999999999999555910790149937383830547332763671875,
            "max_sog": 1.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-10-28T11:58:42+00:00",
        "end": "2026-10-28T13:23:56+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 5m, avg 23m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 85 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both very slow; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b123m"
            },
            "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 (OKEAN and OMSK) maintained close proximity (min 5m, avg 23m) for 85 minutes. Both vessels were slow-moving (avg speeds 1.0 and 0.7 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
Sts🛰️✗ Prigorodnoye/Sakhalin LNG
Oct 28, 2026 10:58 UTC 70/100 ▼
Vessel A: Okean (OKEAN) RUSSIA
Vessel B: Omsk (OMSK) Russia
  • Minimum Distance: 10 meters
  • Average Distance: 14 meters
  • Duration: 36 minutes
  • Period: 2026-10-28T10:58:11+00:00 to 2026-10-28T11:35:07+00:00
  • Vessel A Avg Speed: 0.7 knots
  • Vessel B Avg Speed: 0.7 knots
  • Zone: Prigorodnoye/Sakhalin LNG

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (OKEAN and OMSK) maintained close proximity (min 10m, avg 14m) for 37 minutes. Both vessels were slow-moving (avg speeds 0.7 and 0.7 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
FactorScoreDetail
Distance Tightness25/25Min distance 10m, avg 14m
Duration5/25Duration 37 minutes
Speed Stability15/20both very slow; stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Prigorodnoye/Sakhalin LNG

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-28T12:00:03.951898+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273378580,
        "imo": 9142916,
        "name": "OKEAN",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "min_distance_m": 10.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 13.5999999999999996447286321199499070644378662109375,
    "distance_consistency_m": 5.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 36.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2216,
    "speed_a_avg": 0.67000000000000003996802888650563545525074005126953125,
    "speed_a_std": 0.38000000000000000444089209850062616169452667236328125,
    "speed_b_avg": 0.729999999999999982236431605997495353221893310546875,
    "speed_b_std": 0.289999999999999980015985556747182272374629974365234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.67000000000000003996802888650563545525074005126953125,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.729999999999999982236431605997495353221893310546875,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-10-28T10:58:11+00:00",
        "end": "2026-10-28T11:35:07+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 10m, avg 14m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 37 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both very slow; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (OKEAN and OMSK) maintained close proximity (min 10m, avg 14m) for 37 minutes. Both vessels were slow-moving (avg speeds 0.7 and 0.7 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.64928780000000330119291902519762516021728515625,
            "lon": 142.65841580000000021755113266408443450927734375
        },
        "time_window": {
            "start_ts": "2026-10-28T10:58:11+00:00",
            "end_ts": "2026-10-28T11:35:07+00:00"
        },
        "searched_at": "2026-10-28T12:00:03.951898+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Sakhalin South Approach
Oct 28, 2026 10:58 UTC 70/100 ▼
Vessel A: Okean (OKEAN) RUSSIA
Vessel B: Omsk (OMSK) Russia
  • Minimum Distance: 10 meters
  • Average Distance: 14 meters
  • Duration: 36 minutes
  • Period: 2026-10-28T10:58:11+00:00 to 2026-10-28T11:35:07+00:00
  • Vessel A Avg Speed: 0.7 knots
  • Vessel B Avg Speed: 0.7 knots
  • Zone: Sakhalin South Approach

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (OKEAN and OMSK) maintained close proximity (min 10m, avg 14m) for 37 minutes. Both vessels were slow-moving (avg speeds 0.7 and 0.7 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
FactorScoreDetail
Distance Tightness25/25Min distance 10m, avg 14m
Duration5/25Duration 37 minutes
Speed Stability15/20both very slow; stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Sakhalin South Approach

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-28T12:00:06.653300+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273378580,
        "imo": 9142916,
        "name": "OKEAN",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "min_distance_m": 10.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 13.5999999999999996447286321199499070644378662109375,
    "distance_consistency_m": 5.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 36.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2216,
    "speed_a_avg": 0.67000000000000003996802888650563545525074005126953125,
    "speed_a_std": 0.38000000000000000444089209850062616169452667236328125,
    "speed_b_avg": 0.729999999999999982236431605997495353221893310546875,
    "speed_b_std": 0.289999999999999980015985556747182272374629974365234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.67000000000000003996802888650563545525074005126953125,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.729999999999999982236431605997495353221893310546875,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-10-28T10:58:11+00:00",
        "end": "2026-10-28T11:35:07+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 10m, avg 14m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 37 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both very slow; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (OKEAN and OMSK) maintained close proximity (min 10m, avg 14m) for 37 minutes. Both vessels were slow-moving (avg speeds 0.7 and 0.7 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.64928780000000330119291902519762516021728515625,
            "lon": 142.65841580000000021755113266408443450927734375
        },
        "time_window": {
            "start_ts": "2026-10-28T10:58:11+00:00",
            "end_ts": "2026-10-28T11:35:07+00:00"
        },
        "searched_at": "2026-10-28T12:00:06.653300+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts Prigorodnoye/Sakhalin LNG
Oct 28, 2026 09:04 UTC 90/100 ▼
Vessel A: Omsk (OMSK) Russia
Vessel B: Okean (OKEAN) RUSSIA
  • Minimum Distance: 6 meters
  • Average Distance: 16 meters
  • Duration: 1h 36m
  • Period: 2026-10-28T09:27:43+00:00 to 2026-10-28T11:03:44+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Prigorodnoye/Sakhalin LNG

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (OMSK and OKEAN) maintained close proximity (min 6m, avg 16m) for 96 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye/Sakhalin LNG, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 6m, avg 16m
Duration20/25Duration 96 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±7m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273378580,
        "imo": 9142916,
        "name": "OKEAN",
        "flag": "RUSSIA"
    },
    "min_distance_m": 5.70000000000000017763568394002504646778106689453125,
    "avg_distance_m": 15.5999999999999996447286321199499070644378662109375,
    "distance_consistency_m": 7,
    "duration_minutes": 96,
    "overlap_duration_s": 5761,
    "speed_a_avg": 0.179999999999999993338661852249060757458209991455078125,
    "speed_a_std": 0.179999999999999993338661852249060757458209991455078125,
    "speed_b_avg": 0.13000000000000000444089209850062616169452667236328125,
    "speed_b_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.179999999999999993338661852249060757458209991455078125,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        },
        "vessel_b": {
            "avg_sog": 0.13000000000000000444089209850062616169452667236328125,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-10-28T09:27:43+00:00",
        "end": "2026-10-28T11:03:44+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 6m, avg 16m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 96 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (OMSK and OKEAN) maintained close proximity (min 6m, avg 16m) for 96 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Sakhalin South Approach
Oct 28, 2026 09:04 UTC 90/100 ▼
Vessel A: Omsk (OMSK) Russia
Vessel B: Okean (OKEAN) RUSSIA
  • Minimum Distance: 6 meters
  • Average Distance: 16 meters
  • Duration: 1h 36m
  • Period: 2026-10-28T09:27:43+00:00 to 2026-10-28T11:03:44+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.1 knots
  • Zone: Sakhalin South Approach

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (OMSK and OKEAN) maintained close proximity (min 6m, avg 16m) for 96 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 6m, avg 16m
Duration20/25Duration 96 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±7m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273378580,
        "imo": 9142916,
        "name": "OKEAN",
        "flag": "RUSSIA"
    },
    "min_distance_m": 5.70000000000000017763568394002504646778106689453125,
    "avg_distance_m": 15.5999999999999996447286321199499070644378662109375,
    "distance_consistency_m": 7,
    "duration_minutes": 96,
    "overlap_duration_s": 5761,
    "speed_a_avg": 0.179999999999999993338661852249060757458209991455078125,
    "speed_a_std": 0.179999999999999993338661852249060757458209991455078125,
    "speed_b_avg": 0.13000000000000000444089209850062616169452667236328125,
    "speed_b_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.179999999999999993338661852249060757458209991455078125,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        },
        "vessel_b": {
            "avg_sog": 0.13000000000000000444089209850062616169452667236328125,
            "max_sog": 0.40000000000000002220446049250313080847263336181640625
        }
    },
    "time_window": {
        "start": "2026-10-28T09:27:43+00:00",
        "end": "2026-10-28T11:03:44+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 6m, avg 16m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 96 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (OMSK and OKEAN) maintained close proximity (min 6m, avg 16m) for 96 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 28, 2026 09:04 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 4h 28m
  • Data Points: 30 AIS positions
  • Period: 2026-10-28T09:04:11+00:00 to 2026-10-28T13:32:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 268.6000000000000227373675443232059478759765625,
    "points_in_zone": 30,
    "first_point": {
        "ts": "2026-10-28T09:04:11+00:00",
        "lat": 46.64976329999999649089659214951097965240478515625,
        "lon": 142.6578299999999899227987043559551239013671875
    },
    "last_point": {
        "ts": "2026-10-28T13:32:46+00:00",
        "lat": 46.64969169999999820674929651431739330291748046875,
        "lon": 142.65704329999999799838406033813953399658203125
    }
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 28, 2026 09:04 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 4h 28m
  • Data Points: 30 AIS positions
  • Period: 2026-10-28T09:04:11+00:00 to 2026-10-28T13:32:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 268.6000000000000227373675443232059478759765625,
    "points_in_zone": 30,
    "first_point": {
        "ts": "2026-10-28T09:04:11+00:00",
        "lat": 46.64976329999999649089659214951097965240478515625,
        "lon": 142.6578299999999899227987043559551239013671875
    },
    "last_point": {
        "ts": "2026-10-28T13:32:46+00:00",
        "lat": 46.64969169999999820674929651431739330291748046875,
        "lon": 142.65704329999999799838406033813953399658203125
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 28, 2026 09:04 UTC 75.0% ▼
  • Duration: 4h 28m
  • Radius: 101 meters
  • Data Points: 30 AIS positions
  • Centroid: 46.6493, 142.6582
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 100.7000000000000028421709430404007434844970703125,
    "duration_minutes": 268.6000000000000227373675443232059478759765625,
    "points": 30,
    "centroid": {
        "lat": 46.6492688333333234140809508971869945526123046875,
        "lon": 142.6582059933333539447630755603313446044921875
    },
    "bbox": {
        "min_lat": 46.64888830000000297104634228162467479705810546875,
        "min_lon": 142.65704329999999799838406033813953399658203125,
        "max_lat": 46.64976329999999649089659214951097965240478515625,
        "max_lon": 142.65856500000001005901140160858631134033203125
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 28, 2026 09:04 UTC 75.0% ▼
  • Duration: 4h 28m
  • Radius: 101 meters
  • Data Points: 30 AIS positions
  • Centroid: 46.6493, 142.6582
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 100.7000000000000028421709430404007434844970703125,
    "duration_minutes": 268.6000000000000227373675443232059478759765625,
    "points": 30,
    "centroid": {
        "lat": 46.6492688333333234140809508971869945526123046875,
        "lon": 142.6582059933333539447630755603313446044921875
    },
    "bbox": {
        "min_lat": 46.64888830000000297104634228162467479705810546875,
        "min_lon": 142.65704329999999799838406033813953399658203125,
        "max_lat": 46.64976329999999649089659214951097965240478515625,
        "max_lon": 142.65856500000001005901140160858631134033203125
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Sts🛰️✗ Prigorodnoye/Sakhalin LNG
Oct 28, 2026 08:54 UTC 88/100 ▼
Vessel A: Omsk (OMSK) Russia
Vessel B: Okean (OKEAN) RUSSIA
  • Minimum Distance: 6 meters
  • Average Distance: 47 meters
  • Duration: 2h 9m
  • Period: 2026-10-28T08:54:43+00:00 to 2026-10-28T11:03:44+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Prigorodnoye/Sakhalin LNG

Confidence Analysis

Score: 88/100

High-confidence STS candidate. Two tankers (OMSK and OKEAN) maintained close proximity (min 6m, avg 47m) for 129 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.2 knots). Moderate distance variation observed during the encounter. Event occurred in Prigorodnoye/Sakhalin LNG, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 6m, avg 47m
Duration25/25Duration 129 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency8/15Distance variance ±84m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Prigorodnoye/Sakhalin LNG

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-28T12:30:07.054222+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273378580,
        "imo": 9142916,
        "name": "OKEAN",
        "flag": "RUSSIA"
    },
    "min_distance_m": 5.70000000000000017763568394002504646778106689453125,
    "avg_distance_m": 47.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 84.2000000000000028421709430404007434844970703125,
    "duration_minutes": 129,
    "overlap_duration_s": 7741,
    "speed_a_avg": 0.2399999999999999911182158029987476766109466552734375,
    "speed_a_std": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_b_avg": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_b_std": 0.25,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.2399999999999999911182158029987476766109466552734375,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        },
        "vessel_b": {
            "avg_sog": 0.2099999999999999922284388276239042170345783233642578125,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-10-28T08:54:43+00:00",
        "end": "2026-10-28T11:03:44+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 88,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 6m, avg 47m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 129 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b184m"
            },
            "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 (OMSK and OKEAN) maintained close proximity (min 6m, avg 47m) for 129 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.2 knots). Moderate distance variation observed during the encounter. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.64945329999999756864781375043094158172607421875,
            "lon": 142.658139799999986507827998138964176177978515625
        },
        "time_window": {
            "start_ts": "2026-10-28T08:54:43+00:00",
            "end_ts": "2026-10-28T11:03:44+00:00"
        },
        "searched_at": "2026-10-28T12:30:07.054222+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Sts🛰️✗ Sakhalin South Approach
Oct 28, 2026 08:54 UTC 88/100 ▼
Vessel A: Omsk (OMSK) Russia
Vessel B: Okean (OKEAN) RUSSIA
  • Minimum Distance: 6 meters
  • Average Distance: 47 meters
  • Duration: 2h 9m
  • Period: 2026-10-28T08:54:43+00:00 to 2026-10-28T11:03:44+00:00
  • Vessel A Avg Speed: 0.2 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Sakhalin South Approach

Confidence Analysis

Score: 88/100

High-confidence STS candidate. Two tankers (OMSK and OKEAN) maintained close proximity (min 6m, avg 47m) for 129 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.2 knots). Moderate distance variation observed during the encounter. Event occurred in Sakhalin South Approach, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 6m, avg 47m
Duration25/25Duration 129 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency8/15Distance variance ±84m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Sakhalin South Approach

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-28T12:30:09.445965+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273378580,
        "imo": 9142916,
        "name": "OKEAN",
        "flag": "RUSSIA"
    },
    "min_distance_m": 5.70000000000000017763568394002504646778106689453125,
    "avg_distance_m": 47.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 84.2000000000000028421709430404007434844970703125,
    "duration_minutes": 129,
    "overlap_duration_s": 7741,
    "speed_a_avg": 0.2399999999999999911182158029987476766109466552734375,
    "speed_a_std": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_b_avg": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_b_std": 0.25,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.2399999999999999911182158029987476766109466552734375,
            "max_sog": 0.59999999999999997779553950749686919152736663818359375
        },
        "vessel_b": {
            "avg_sog": 0.2099999999999999922284388276239042170345783233642578125,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-10-28T08:54:43+00:00",
        "end": "2026-10-28T11:03:44+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 88,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 6m, avg 47m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 129 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b184m"
            },
            "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 (OMSK and OKEAN) maintained close proximity (min 6m, avg 47m) for 129 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.2 knots). Moderate distance variation observed during the encounter. Event occurred in Sakhalin South Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.64945329999999756864781375043094158172607421875,
            "lon": 142.658139799999986507827998138964176177978515625
        },
        "time_window": {
            "start_ts": "2026-10-28T08:54:43+00:00",
            "end_ts": "2026-10-28T11:03:44+00:00"
        },
        "searched_at": "2026-10-28T12:30:09.445965+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 28, 2026 07:00 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 32m
  • Data Points: 32 AIS positions
  • Period: 2026-10-28T07:00:14+00:00 to 2026-10-28T13:32:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 392.5,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-10-28T07:00:14+00:00",
        "lat": 46.65037000000000233512764680199325084686279296875,
        "lon": 142.652236700000003111199475824832916259765625
    },
    "last_point": {
        "ts": "2026-10-28T13:32:46+00:00",
        "lat": 46.64969169999999820674929651431739330291748046875,
        "lon": 142.65704329999999799838406033813953399658203125
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 28, 2026 07:00 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 32m
  • Data Points: 32 AIS positions
  • Period: 2026-10-28T07:00:14+00:00 to 2026-10-28T13:32:46+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 392.5,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-10-28T07:00:14+00:00",
        "lat": 46.65037000000000233512764680199325084686279296875,
        "lon": 142.652236700000003111199475824832916259765625
    },
    "last_point": {
        "ts": "2026-10-28T13:32:46+00:00",
        "lat": 46.64969169999999820674929651431739330291748046875,
        "lon": 142.65704329999999799838406033813953399658203125
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 28, 2026 07:00 UTC 75.0% ▼
  • Duration: 6h 32m
  • Radius: 444 meters
  • Data Points: 32 AIS positions
  • Centroid: 46.6493, 142.6578
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 444,
    "duration_minutes": 392.5,
    "points": 32,
    "centroid": {
        "lat": 46.64933864687498754619809915311634540557861328125,
        "lon": 142.657839734375016860212781466543674468994140625
    },
    "bbox": {
        "min_lat": 46.64888830000000297104634228162467479705810546875,
        "min_lon": 142.652236700000003111199475824832916259765625,
        "max_lat": 46.650401700000003302193363197147846221923828125,
        "max_lon": 142.65856500000001005901140160858631134033203125
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 28, 2026 07:00 UTC 75.0% ▼
  • Duration: 6h 32m
  • Radius: 444 meters
  • Data Points: 32 AIS positions
  • Centroid: 46.6493, 142.6578
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 444,
    "duration_minutes": 392.5,
    "points": 32,
    "centroid": {
        "lat": 46.64933864687498754619809915311634540557861328125,
        "lon": 142.657839734375016860212781466543674468994140625
    },
    "bbox": {
        "min_lat": 46.64888830000000297104634228162467479705810546875,
        "min_lon": 142.652236700000003111199475824832916259765625,
        "max_lat": 46.650401700000003302193363197147846221923828125,
        "max_lon": 142.65856500000001005901140160858631134033203125
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 28, 2026 06:02 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 30m
  • Data Points: 32 AIS positions
  • Period: 2026-10-28T06:53:44+00:00 to 2026-10-28T13:23:56+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390.19999999999998863131622783839702606201171875,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-10-28T06:53:44+00:00",
        "lat": 46.65039829999999909659891272895038127899169921875,
        "lon": 142.652716700000013361204764805734157562255859375
    },
    "last_point": {
        "ts": "2026-10-28T13:23:56+00:00",
        "lat": 46.64924669999999906622178968973457813262939453125,
        "lon": 142.65717829999999821666278876364231109619140625
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 28, 2026 06:02 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 30m
  • Data Points: 32 AIS positions
  • Period: 2026-10-28T06:53:44+00:00 to 2026-10-28T13:23:56+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390.19999999999998863131622783839702606201171875,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-10-28T06:53:44+00:00",
        "lat": 46.65039829999999909659891272895038127899169921875,
        "lon": 142.652716700000013361204764805734157562255859375
    },
    "last_point": {
        "ts": "2026-10-28T13:23:56+00:00",
        "lat": 46.64924669999999906622178968973457813262939453125,
        "lon": 142.65717829999999821666278876364231109619140625
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 28, 2026 06:02 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 433 meters
  • Data Points: 32 AIS positions
  • Centroid: 46.6494, 142.6577
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 433.30000000000001136868377216160297393798828125,
    "duration_minutes": 390.19999999999998863131622783839702606201171875,
    "points": 32,
    "centroid": {
        "lat": 46.6493607281249893503627390600740909576416015625,
        "lon": 142.6577045281250093466951511800289154052734375
    },
    "bbox": {
        "min_lat": 46.64888830000000297104634228162467479705810546875,
        "min_lon": 142.652236700000003111199475824832916259765625,
        "max_lat": 46.650401700000003302193363197147846221923828125,
        "max_lon": 142.65856500000001005901140160858631134033203125
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 28, 2026 06:02 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 433 meters
  • Data Points: 32 AIS positions
  • Centroid: 46.6494, 142.6577
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 433.30000000000001136868377216160297393798828125,
    "duration_minutes": 390.19999999999998863131622783839702606201171875,
    "points": 32,
    "centroid": {
        "lat": 46.6493607281249893503627390600740909576416015625,
        "lon": 142.6577045281250093466951511800289154052734375
    },
    "bbox": {
        "min_lat": 46.64888830000000297104634228162467479705810546875,
        "min_lon": 142.652236700000003111199475824832916259765625,
        "max_lat": 46.650401700000003302193363197147846221923828125,
        "max_lon": 142.65856500000001005901140160858631134033203125
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 28, 2026 05:00 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 30m
  • Data Points: 23 AIS positions
  • Period: 2026-10-28T05:42:04+00:00 to 2026-10-28T12:12:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390.3999999999999772626324556767940521240234375,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-10-28T05:42:04+00:00",
        "lat": 46.65028829999999970823409967124462127685546875,
        "lon": 142.651884999999992942321114242076873779296875
    },
    "last_point": {
        "ts": "2026-10-28T12:12:26+00:00",
        "lat": 46.6493116999999983818270266056060791015625,
        "lon": 142.658375000000006593836587853729724884033203125
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 28, 2026 05:00 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 30m
  • Data Points: 23 AIS positions
  • Period: 2026-10-28T05:42:04+00:00 to 2026-10-28T12:12:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390.3999999999999772626324556767940521240234375,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-10-28T05:42:04+00:00",
        "lat": 46.65028829999999970823409967124462127685546875,
        "lon": 142.651884999999992942321114242076873779296875
    },
    "last_point": {
        "ts": "2026-10-28T12:12:26+00:00",
        "lat": 46.6493116999999983818270266056060791015625,
        "lon": 142.658375000000006593836587853729724884033203125
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 28, 2026 05:00 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 348 meters
  • Data Points: 23 AIS positions
  • Centroid: 46.6497, 142.6562
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 348.19999999999998863131622783839702606201171875,
    "duration_minutes": 390.3999999999999772626324556767940521240234375,
    "points": 23,
    "centroid": {
        "lat": 46.64968723913042225603931001387536525726318359375,
        "lon": 142.65618644782608726018224842846393585205078125
    },
    "bbox": {
        "min_lat": 46.64888830000000297104634228162467479705810546875,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.650401700000003302193363197147846221923828125,
        "max_lon": 142.65856500000001005901140160858631134033203125
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 28, 2026 05:00 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 348 meters
  • Data Points: 23 AIS positions
  • Centroid: 46.6497, 142.6562
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 348.19999999999998863131622783839702606201171875,
    "duration_minutes": 390.3999999999999772626324556767940521240234375,
    "points": 23,
    "centroid": {
        "lat": 46.64968723913042225603931001387536525726318359375,
        "lon": 142.65618644782608726018224842846393585205078125
    },
    "bbox": {
        "min_lat": 46.64888830000000297104634228162467479705810546875,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.650401700000003302193363197147846221923828125,
        "max_lon": 142.65856500000001005901140160858631134033203125
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 28, 2026 04:02 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 37m
  • Data Points: 22 AIS positions
  • Period: 2026-10-28T04:21:04+00:00 to 2026-10-28T10:58:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 397.1000000000000227373675443232059478759765625,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-10-28T04:21:04+00:00",
        "lat": 46.65030329999999736401150585152208805084228515625,
        "lon": 142.65228170000000318395905196666717529296875
    },
    "last_point": {
        "ts": "2026-10-28T10:58:11+00:00",
        "lat": 46.6492932999999965204551699571311473846435546875,
        "lon": 142.658441699999997354098013602197170257568359375
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 28, 2026 04:02 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 37m
  • Data Points: 22 AIS positions
  • Period: 2026-10-28T04:21:04+00:00 to 2026-10-28T10:58:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 397.1000000000000227373675443232059478759765625,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-10-28T04:21:04+00:00",
        "lat": 46.65030329999999736401150585152208805084228515625,
        "lon": 142.65228170000000318395905196666717529296875
    },
    "last_point": {
        "ts": "2026-10-28T10:58:11+00:00",
        "lat": 46.6492932999999965204551699571311473846435546875,
        "lon": 142.658441699999997354098013602197170257568359375
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 28, 2026 04:02 UTC 75.0% ▼
  • Duration: 6h 37m
  • Radius: 345 meters
  • Data Points: 22 AIS positions
  • Centroid: 46.6500, 142.6541
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 345.19999999999998863131622783839702606201171875,
    "duration_minutes": 397.1000000000000227373675443232059478759765625,
    "points": 22,
    "centroid": {
        "lat": 46.65003635909089751976352999918162822723388671875,
        "lon": 142.65413060909094156158971600234508514404296875
    },
    "bbox": {
        "min_lat": 46.6492817000000030702722142450511455535888671875,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.650401700000003302193363197147846221923828125,
        "max_lon": 142.65856500000001005901140160858631134033203125
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 28, 2026 04:02 UTC 75.0% ▼
  • Duration: 6h 37m
  • Radius: 345 meters
  • Data Points: 22 AIS positions
  • Centroid: 46.6500, 142.6541
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 345.19999999999998863131622783839702606201171875,
    "duration_minutes": 397.1000000000000227373675443232059478759765625,
    "points": 22,
    "centroid": {
        "lat": 46.65003635909089751976352999918162822723388671875,
        "lon": 142.65413060909094156158971600234508514404296875
    },
    "bbox": {
        "min_lat": 46.6492817000000030702722142450511455535888671875,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.650401700000003302193363197147846221923828125,
        "max_lon": 142.65856500000001005901140160858631134033203125
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 28, 2026 03:02 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 31m
  • Data Points: 24 AIS positions
  • Period: 2026-10-28T03:32:56+00:00 to 2026-10-28T10:04:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 391.19999999999998863131622783839702606201171875,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-10-28T03:32:56+00:00",
        "lat": 46.6503050000000030195224098861217498779296875,
        "lon": 142.65258330000000341897248290479183197021484375
    },
    "last_point": {
        "ts": "2026-10-28T10:04:11+00:00",
        "lat": 46.6493267000000031430317903868854045867919921875,
        "lon": 142.65847500000000991349224932491779327392578125
    }
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 28, 2026 03:02 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 31m
  • Data Points: 24 AIS positions
  • Period: 2026-10-28T03:32:56+00:00 to 2026-10-28T10:04:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 391.19999999999998863131622783839702606201171875,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-10-28T03:32:56+00:00",
        "lat": 46.6503050000000030195224098861217498779296875,
        "lon": 142.65258330000000341897248290479183197021484375
    },
    "last_point": {
        "ts": "2026-10-28T10:04:11+00:00",
        "lat": 46.6493267000000031430317903868854045867919921875,
        "lon": 142.65847500000000991349224932491779327392578125
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 28, 2026 03:02 UTC 75.0% ▼
  • Duration: 6h 31m
  • Radius: 416 meters
  • Data Points: 24 AIS positions
  • Centroid: 46.6502, 142.6532
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 415.6000000000000227373675443232059478759765625,
    "duration_minutes": 391.19999999999998863131622783839702606201171875,
    "points": 24,
    "centroid": {
        "lat": 46.65018090000000228201315621845424175262451171875,
        "lon": 142.653189720833353248963248915970325469970703125
    },
    "bbox": {
        "min_lat": 46.6493267000000031430317903868854045867919921875,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.650401700000003302193363197147846221923828125,
        "max_lon": 142.65847500000000991349224932491779327392578125
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 28, 2026 03:02 UTC 75.0% ▼
  • Duration: 6h 31m
  • Radius: 416 meters
  • Data Points: 24 AIS positions
  • Centroid: 46.6502, 142.6532
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 415.6000000000000227373675443232059478759765625,
    "duration_minutes": 391.19999999999998863131622783839702606201171875,
    "points": 24,
    "centroid": {
        "lat": 46.65018090000000228201315621845424175262451171875,
        "lon": 142.653189720833353248963248915970325469970703125
    },
    "bbox": {
        "min_lat": 46.6493267000000031430317903868854045867919921875,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.650401700000003302193363197147846221923828125,
        "max_lon": 142.65847500000000991349224932491779327392578125
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 28, 2026 02:00 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 34m
  • Data Points: 26 AIS positions
  • Period: 2026-10-28T02:44:56+00:00 to 2026-10-28T09:19:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 394.19999999999998863131622783839702606201171875,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-10-28T02:44:56+00:00",
        "lat": 46.65037829999999985375325195491313934326171875,
        "lon": 142.6528266999999914332875050604343414306640625
    },
    "last_point": {
        "ts": "2026-10-28T09:19:11+00:00",
        "lat": 46.6494617000000033613105188123881816864013671875,
        "lon": 142.65825330000001258667907677590847015380859375
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 28, 2026 02:00 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 34m
  • Data Points: 26 AIS positions
  • Period: 2026-10-28T02:44:56+00:00 to 2026-10-28T09:19:11+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 394.19999999999998863131622783839702606201171875,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-10-28T02:44:56+00:00",
        "lat": 46.65037829999999985375325195491313934326171875,
        "lon": 142.6528266999999914332875050604343414306640625
    },
    "last_point": {
        "ts": "2026-10-28T09:19:11+00:00",
        "lat": 46.6494617000000033613105188123881816864013671875,
        "lon": 142.65825330000001258667907677590847015380859375
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 28, 2026 02:00 UTC 75.0% ▼
  • Duration: 6h 34m
  • Radius: 431 meters
  • Data Points: 26 AIS positions
  • Centroid: 46.6503, 142.6527
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 431.3999999999999772626324556767940521240234375,
    "duration_minutes": 394.19999999999998863131622783839702606201171875,
    "points": 26,
    "centroid": {
        "lat": 46.650275892307689673543791286647319793701171875,
        "lon": 142.6527427538461552103399299085140228271484375
    },
    "bbox": {
        "min_lat": 46.6494617000000033613105188123881816864013671875,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.65041999999999688952811993658542633056640625,
        "max_lon": 142.65825330000001258667907677590847015380859375
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 28, 2026 02:00 UTC 75.0% ▼
  • Duration: 6h 34m
  • Radius: 431 meters
  • Data Points: 26 AIS positions
  • Centroid: 46.6503, 142.6527
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 431.3999999999999772626324556767940521240234375,
    "duration_minutes": 394.19999999999998863131622783839702606201171875,
    "points": 26,
    "centroid": {
        "lat": 46.650275892307689673543791286647319793701171875,
        "lon": 142.6527427538461552103399299085140228271484375
    },
    "bbox": {
        "min_lat": 46.6494617000000033613105188123881816864013671875,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.65041999999999688952811993658542633056640625,
        "max_lon": 142.65825330000001258667907677590847015380859375
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 28, 2026 01:03 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 2m
  • Data Points: 35 AIS positions
  • Period: 2026-10-28T01:03:34+00:00 to 2026-10-28T07:06:10+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 362.6000000000000227373675443232059478759765625,
    "points_in_zone": 35,
    "first_point": {
        "ts": "2026-10-28T01:03:34+00:00",
        "lat": 46.6503383000000013680619304068386554718017578125,
        "lon": 142.6522032999999964886228553950786590576171875
    },
    "last_point": {
        "ts": "2026-10-28T07:06:10+00:00",
        "lat": 46.650401700000003302193363197147846221923828125,
        "lon": 142.652455000000003337845555506646633148193359375
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 28, 2026 01:03 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 2m
  • Data Points: 35 AIS positions
  • Period: 2026-10-28T01:03:34+00:00 to 2026-10-28T07:06:10+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 362.6000000000000227373675443232059478759765625,
    "points_in_zone": 35,
    "first_point": {
        "ts": "2026-10-28T01:03:34+00:00",
        "lat": 46.6503383000000013680619304068386554718017578125,
        "lon": 142.6522032999999964886228553950786590576171875
    },
    "last_point": {
        "ts": "2026-10-28T07:06:10+00:00",
        "lat": 46.650401700000003302193363197147846221923828125,
        "lon": 142.652455000000003337845555506646633148193359375
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 28, 2026 01:03 UTC 75.0% ▼
  • Duration: 6h 2m
  • Radius: 62 meters
  • Data Points: 35 AIS positions
  • Centroid: 46.6503, 142.6523
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 61.5,
    "duration_minutes": 362.6000000000000227373675443232059478759765625,
    "points": 35,
    "centroid": {
        "lat": 46.65032356857142303852015174925327301025390625,
        "lon": 142.652287857142852089964435435831546783447265625
    },
    "bbox": {
        "min_lat": 46.6502449999999981855580699630081653594970703125,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.65041999999999688952811993658542633056640625,
        "max_lon": 142.65307830000000421932782046496868133544921875
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 28, 2026 01:03 UTC 75.0% ▼
  • Duration: 6h 2m
  • Radius: 62 meters
  • Data Points: 35 AIS positions
  • Centroid: 46.6503, 142.6523
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 61.5,
    "duration_minutes": 362.6000000000000227373675443232059478759765625,
    "points": 35,
    "centroid": {
        "lat": 46.65032356857142303852015174925327301025390625,
        "lon": 142.652287857142852089964435435831546783447265625
    },
    "bbox": {
        "min_lat": 46.6502449999999981855580699630081653594970703125,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.65041999999999688952811993658542633056640625,
        "max_lon": 142.65307830000000421932782046496868133544921875
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 28, 2026 00:12 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 25m
  • Data Points: 37 AIS positions
  • Period: 2026-10-28T00:40:38+00:00 to 2026-10-28T07:06:10+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 385.5,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-10-28T00:40:38+00:00",
        "lat": 46.6502832999999981211658450774848461151123046875,
        "lon": 142.652111700000006067057256586849689483642578125
    },
    "last_point": {
        "ts": "2026-10-28T07:06:10+00:00",
        "lat": 46.650401700000003302193363197147846221923828125,
        "lon": 142.652455000000003337845555506646633148193359375
    }
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 28, 2026 00:12 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 25m
  • Data Points: 37 AIS positions
  • Period: 2026-10-28T00:40:38+00:00 to 2026-10-28T07:06:10+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 385.5,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-10-28T00:40:38+00:00",
        "lat": 46.6502832999999981211658450774848461151123046875,
        "lon": 142.652111700000006067057256586849689483642578125
    },
    "last_point": {
        "ts": "2026-10-28T07:06:10+00:00",
        "lat": 46.650401700000003302193363197147846221923828125,
        "lon": 142.652455000000003337845555506646633148193359375
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 28, 2026 00:12 UTC 75.0% ▼
  • Duration: 6h 25m
  • Radius: 62 meters
  • Data Points: 37 AIS positions
  • Centroid: 46.6503, 142.6523
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 62.10000000000000142108547152020037174224853515625,
    "duration_minutes": 385.5,
    "points": 37,
    "centroid": {
        "lat": 46.650323059459452679220703430473804473876953125,
        "lon": 142.65227891891890976694412529468536376953125
    },
    "bbox": {
        "min_lat": 46.6502449999999981855580699630081653594970703125,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.65041999999999688952811993658542633056640625,
        "max_lon": 142.65307830000000421932782046496868133544921875
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 28, 2026 00:12 UTC 75.0% ▼
  • Duration: 6h 25m
  • Radius: 62 meters
  • Data Points: 37 AIS positions
  • Centroid: 46.6503, 142.6523
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 62.10000000000000142108547152020037174224853515625,
    "duration_minutes": 385.5,
    "points": 37,
    "centroid": {
        "lat": 46.650323059459452679220703430473804473876953125,
        "lon": 142.65227891891890976694412529468536376953125
    },
    "bbox": {
        "min_lat": 46.6502449999999981855580699630081653594970703125,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.65041999999999688952811993658542633056640625,
        "max_lon": 142.65307830000000421932782046496868133544921875
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 23:02 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 31m
  • Data Points: 37 AIS positions
  • Period: 2026-10-27T23:51:58+00:00 to 2026-10-28T06:23:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 391.80000000000001136868377216160297393798828125,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-10-27T23:51:58+00:00",
        "lat": 46.65032670000000081245161709375679492950439453125,
        "lon": 142.652275000000003046807250939309597015380859375
    },
    "last_point": {
        "ts": "2026-10-28T06:23:45+00:00",
        "lat": 46.650339999999999918145476840436458587646484375,
        "lon": 142.652008300000005647234502248466014862060546875
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 23:02 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 31m
  • Data Points: 37 AIS positions
  • Period: 2026-10-27T23:51:58+00:00 to 2026-10-28T06:23:45+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 391.80000000000001136868377216160297393798828125,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-10-27T23:51:58+00:00",
        "lat": 46.65032670000000081245161709375679492950439453125,
        "lon": 142.652275000000003046807250939309597015380859375
    },
    "last_point": {
        "ts": "2026-10-28T06:23:45+00:00",
        "lat": 46.650339999999999918145476840436458587646484375,
        "lon": 142.652008300000005647234502248466014862060546875
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 23:02 UTC 75.0% ▼
  • Duration: 6h 31m
  • Radius: 64 meters
  • Data Points: 37 AIS positions
  • Centroid: 46.6503, 142.6522
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 64.400000000000005684341886080801486968994140625,
    "duration_minutes": 391.80000000000001136868377216160297393798828125,
    "points": 37,
    "centroid": {
        "lat": 46.6503209891891827965082484297454357147216796875,
        "lon": 142.65224927837834911770187318325042724609375
    },
    "bbox": {
        "min_lat": 46.6502449999999981855580699630081653594970703125,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.65041999999999688952811993658542633056640625,
        "max_lon": 142.65307830000000421932782046496868133544921875
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 23:02 UTC 75.0% ▼
  • Duration: 6h 31m
  • Radius: 64 meters
  • Data Points: 37 AIS positions
  • Centroid: 46.6503, 142.6522
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 64.400000000000005684341886080801486968994140625,
    "duration_minutes": 391.80000000000001136868377216160297393798828125,
    "points": 37,
    "centroid": {
        "lat": 46.6503209891891827965082484297454357147216796875,
        "lon": 142.65224927837834911770187318325042724609375
    },
    "bbox": {
        "min_lat": 46.6502449999999981855580699630081653594970703125,
        "min_lon": 142.65172830000000203654053620994091033935546875,
        "max_lat": 46.65041999999999688952811993658542633056640625,
        "max_lon": 142.65307830000000421932782046496868133544921875
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 22:47 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 12m
  • Data Points: 36 AIS positions
  • Period: 2026-10-27T22:47:54+00:00 to 2026-10-28T05:00:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 372.19999999999998863131622783839702606201171875,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-10-27T22:47:54+00:00",
        "lat": 46.650433300000003100649337284266948699951171875,
        "lon": 142.652050000000002683009370230138301849365234375
    },
    "last_point": {
        "ts": "2026-10-28T05:00:05+00:00",
        "lat": 46.65028000000000218960849451832473278045654296875,
        "lon": 142.652164999999996553015080280601978302001953125
    }
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 22:47 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 12m
  • Data Points: 36 AIS positions
  • Period: 2026-10-27T22:47:54+00:00 to 2026-10-28T05:00:05+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 372.19999999999998863131622783839702606201171875,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-10-27T22:47:54+00:00",
        "lat": 46.650433300000003100649337284266948699951171875,
        "lon": 142.652050000000002683009370230138301849365234375
    },
    "last_point": {
        "ts": "2026-10-28T05:00:05+00:00",
        "lat": 46.65028000000000218960849451832473278045654296875,
        "lon": 142.652164999999996553015080280601978302001953125
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 22:47 UTC 75.0% ▼
  • Duration: 6h 12m
  • Radius: 61 meters
  • Data Points: 36 AIS positions
  • Centroid: 46.6503, 142.6523
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 60.7000000000000028421709430404007434844970703125,
    "duration_minutes": 372.19999999999998863131622783839702606201171875,
    "points": 36,
    "centroid": {
        "lat": 46.65032981111109933181069209240376949310302734375,
        "lon": 142.65229574444447280257008969783782958984375
    },
    "bbox": {
        "min_lat": 46.6502449999999981855580699630081653594970703125,
        "min_lon": 142.65190000000001191438059322535991668701171875,
        "max_lat": 46.650433300000003100649337284266948699951171875,
        "max_lon": 142.65307830000000421932782046496868133544921875
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 22:47 UTC 75.0% ▼
  • Duration: 6h 12m
  • Radius: 61 meters
  • Data Points: 36 AIS positions
  • Centroid: 46.6503, 142.6523
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 60.7000000000000028421709430404007434844970703125,
    "duration_minutes": 372.19999999999998863131622783839702606201171875,
    "points": 36,
    "centroid": {
        "lat": 46.65032981111109933181069209240376949310302734375,
        "lon": 142.65229574444447280257008969783782958984375
    },
    "bbox": {
        "min_lat": 46.6502449999999981855580699630081653594970703125,
        "min_lon": 142.65190000000001191438059322535991668701171875,
        "max_lat": 46.650433300000003100649337284266948699951171875,
        "max_lon": 142.65307830000000421932782046496868133544921875
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 20:19 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 1h 17m
  • Data Points: 7 AIS positions
  • Period: 2026-10-27T20:19:13+00:00 to 2026-10-27T21:36:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 77.2000000000000028421709430404007434844970703125,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-10-27T20:19:13+00:00",
        "lat": 46.6512000000000028876456781290471553802490234375,
        "lon": 142.651800000000008594724931754171848297119140625
    },
    "last_point": {
        "ts": "2026-10-27T21:36:25+00:00",
        "lat": 46.65124829999999889196260483004152774810791015625,
        "lon": 142.65218329999999014034983702003955841064453125
    }
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 20:19 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 1h 17m
  • Data Points: 7 AIS positions
  • Period: 2026-10-27T20:19:13+00:00 to 2026-10-27T21:36:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 77.2000000000000028421709430404007434844970703125,
    "points_in_zone": 7,
    "first_point": {
        "ts": "2026-10-27T20:19:13+00:00",
        "lat": 46.6512000000000028876456781290471553802490234375,
        "lon": 142.651800000000008594724931754171848297119140625
    },
    "last_point": {
        "ts": "2026-10-27T21:36:25+00:00",
        "lat": 46.65124829999999889196260483004152774810791015625,
        "lon": 142.65218329999999014034983702003955841064453125
    }
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 12:02 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 1h 24m
  • Data Points: 14 AIS positions
  • Period: 2026-10-27T12:02:06+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 84.400000000000005684341886080801486968994140625,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-10-27T12:02:06+00:00",
        "lat": 46.6515083000000032598109100945293903350830078125,
        "lon": 142.652295000000009395080269314348697662353515625
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 12:02 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 1h 24m
  • Data Points: 14 AIS positions
  • Period: 2026-10-27T12:02:06+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 84.400000000000005684341886080801486968994140625,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-10-27T12:02:06+00:00",
        "lat": 46.6515083000000032598109100945293903350830078125,
        "lon": 142.652295000000009395080269314348697662353515625
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 11:01 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 2h 25m
  • Data Points: 25 AIS positions
  • Period: 2026-10-27T11:01:01+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 145.5,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-10-27T11:01:01+00:00",
        "lat": 46.652348299999999881038093008100986480712890625,
        "lon": 142.65342670000001135122147388756275177001953125
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 11:01 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 2h 25m
  • Data Points: 25 AIS positions
  • Period: 2026-10-27T11:01:01+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 145.5,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-10-27T11:01:01+00:00",
        "lat": 46.652348299999999881038093008100986480712890625,
        "lon": 142.65342670000001135122147388756275177001953125
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 11:01 UTC 75.0% ▼
  • Duration: 2h 25m
  • Radius: 114 meters
  • Data Points: 25 AIS positions
  • Centroid: 46.6516, 142.6524
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 114.400000000000005684341886080801486968994140625,
    "duration_minutes": 145.5,
    "points": 25,
    "centroid": {
        "lat": 46.65158932799999291773929144255816936492919921875,
        "lon": 142.6524180679999744825181551277637481689453125
    },
    "bbox": {
        "min_lat": 46.6512967000000031703166314400732517242431640625,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.652348299999999881038093008100986480712890625,
        "max_lon": 142.653429999999985966496751643717288970947265625
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 11:01 UTC 75.0% ▼
  • Duration: 2h 25m
  • Radius: 114 meters
  • Data Points: 25 AIS positions
  • Centroid: 46.6516, 142.6524
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 114.400000000000005684341886080801486968994140625,
    "duration_minutes": 145.5,
    "points": 25,
    "centroid": {
        "lat": 46.65158932799999291773929144255816936492919921875,
        "lon": 142.6524180679999744825181551277637481689453125
    },
    "bbox": {
        "min_lat": 46.6512967000000031703166314400732517242431640625,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.652348299999999881038093008100986480712890625,
        "max_lon": 142.653429999999985966496751643717288970947265625
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 10:03 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 3h 23m
  • Data Points: 35 AIS positions
  • Period: 2026-10-27T10:03:28+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 203.099999999999994315658113919198513031005859375,
    "points_in_zone": 35,
    "first_point": {
        "ts": "2026-10-27T10:03:28+00:00",
        "lat": 46.65300169999999724268491263501346111297607421875,
        "lon": 142.65321330000000443760654889047145843505859375
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 10:03 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 3h 23m
  • Data Points: 35 AIS positions
  • Period: 2026-10-27T10:03:28+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 203.099999999999994315658113919198513031005859375,
    "points_in_zone": 35,
    "first_point": {
        "ts": "2026-10-27T10:03:28+00:00",
        "lat": 46.65300169999999724268491263501346111297607421875,
        "lon": 142.65321330000000443760654889047145843505859375
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 10:03 UTC 75.0% ▼
  • Duration: 3h 23m
  • Radius: 127 meters
  • Data Points: 35 AIS positions
  • Centroid: 46.6520, 142.6526
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 126.7000000000000028421709430404007434844970703125,
    "duration_minutes": 203.099999999999994315658113919198513031005859375,
    "points": 35,
    "centroid": {
        "lat": 46.6519887600000089378227130509912967681884765625,
        "lon": 142.652635239999966643154039047658443450927734375
    },
    "bbox": {
        "min_lat": 46.6512967000000031703166314400732517242431640625,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.653429999999985966496751643717288970947265625
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 10:03 UTC 75.0% ▼
  • Duration: 3h 23m
  • Radius: 127 meters
  • Data Points: 35 AIS positions
  • Centroid: 46.6520, 142.6526
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 126.7000000000000028421709430404007434844970703125,
    "duration_minutes": 203.099999999999994315658113919198513031005859375,
    "points": 35,
    "centroid": {
        "lat": 46.6519887600000089378227130509912967681884765625,
        "lon": 142.652635239999966643154039047658443450927734375
    },
    "bbox": {
        "min_lat": 46.6512967000000031703166314400732517242431640625,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.653429999999985966496751643717288970947265625
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 09:01 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 4h 24m
  • Data Points: 41 AIS positions
  • Period: 2026-10-27T09:01:37+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 264.8999999999999772626324556767940521240234375,
    "points_in_zone": 41,
    "first_point": {
        "ts": "2026-10-27T09:01:37+00:00",
        "lat": 46.65287670000000019854269339703023433685302734375,
        "lon": 142.653473300000001700027496553957462310791015625
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 09:01 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 4h 24m
  • Data Points: 41 AIS positions
  • Period: 2026-10-27T09:01:37+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 264.8999999999999772626324556767940521240234375,
    "points_in_zone": 41,
    "first_point": {
        "ts": "2026-10-27T09:01:37+00:00",
        "lat": 46.65287670000000019854269339703023433685302734375,
        "lon": 142.653473300000001700027496553957462310791015625
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 09:01 UTC 75.0% ▼
  • Duration: 4h 24m
  • Radius: 114 meters
  • Data Points: 41 AIS positions
  • Centroid: 46.6521, 142.6528
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 113.900000000000005684341886080801486968994140625,
    "duration_minutes": 264.8999999999999772626324556767940521240234375,
    "points": 41,
    "centroid": {
        "lat": 46.65208239756098151929109008051455020904541015625,
        "lon": 142.6527637804878168026334606111049652099609375
    },
    "bbox": {
        "min_lat": 46.6512967000000031703166314400732517242431640625,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.653654999999986330294632352888584136962890625
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 09:01 UTC 75.0% ▼
  • Duration: 4h 24m
  • Radius: 114 meters
  • Data Points: 41 AIS positions
  • Centroid: 46.6521, 142.6528
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 113.900000000000005684341886080801486968994140625,
    "duration_minutes": 264.8999999999999772626324556767940521240234375,
    "points": 41,
    "centroid": {
        "lat": 46.65208239756098151929109008051455020904541015625,
        "lon": 142.6527637804878168026334606111049652099609375
    },
    "bbox": {
        "min_lat": 46.6512967000000031703166314400732517242431640625,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.653654999999986330294632352888584136962890625
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 08:00 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 5h 26m
  • Data Points: 49 AIS positions
  • Period: 2026-10-27T08:00:31+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 326,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-10-27T08:00:31+00:00",
        "lat": 46.652631700000000591899151913821697235107421875,
        "lon": 142.653604999999998881321516819298267364501953125
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 08:00 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 5h 26m
  • Data Points: 49 AIS positions
  • Period: 2026-10-27T08:00:31+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 326,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-10-27T08:00:31+00:00",
        "lat": 46.652631700000000591899151913821697235107421875,
        "lon": 142.653604999999998881321516819298267364501953125
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 08:00 UTC 75.0% ▼
  • Duration: 5h 26m
  • Radius: 105 meters
  • Data Points: 49 AIS positions
  • Centroid: 46.6522, 142.6529
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 105.2999999999999971578290569595992565155029296875,
    "duration_minutes": 326,
    "points": 49,
    "centroid": {
        "lat": 46.6521995897959271815125248394906520843505859375,
        "lon": 142.652889932653096138892578892409801483154296875
    },
    "bbox": {
        "min_lat": 46.6512967000000031703166314400732517242431640625,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.6537332999999989624484442174434661865234375
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 08:00 UTC 75.0% ▼
  • Duration: 5h 26m
  • Radius: 105 meters
  • Data Points: 49 AIS positions
  • Centroid: 46.6522, 142.6529
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 105.2999999999999971578290569595992565155029296875,
    "duration_minutes": 326,
    "points": 49,
    "centroid": {
        "lat": 46.6521995897959271815125248394906520843505859375,
        "lon": 142.652889932653096138892578892409801483154296875
    },
    "bbox": {
        "min_lat": 46.6512967000000031703166314400732517242431640625,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.6537332999999989624484442174434661865234375
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 07:06 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 20m
  • Data Points: 53 AIS positions
  • Period: 2026-10-27T07:06:32+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 380,
    "points_in_zone": 53,
    "first_point": {
        "ts": "2026-10-27T07:06:32+00:00",
        "lat": 46.65286830000000151130734593607485294342041015625,
        "lon": 142.6535499999999956344254314899444580078125
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 07:06 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 20m
  • Data Points: 53 AIS positions
  • Period: 2026-10-27T07:06:32+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 380,
    "points_in_zone": 53,
    "first_point": {
        "ts": "2026-10-27T07:06:32+00:00",
        "lat": 46.65286830000000151130734593607485294342041015625,
        "lon": 142.6535499999999956344254314899444580078125
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 07:06 UTC 75.0% ▼
  • Duration: 6h 20m
  • Radius: 111 meters
  • Data Points: 53 AIS positions
  • Centroid: 46.6522, 142.6529
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 111.2999999999999971578290569595992565155029296875,
    "duration_minutes": 380,
    "points": 53,
    "centroid": {
        "lat": 46.65224355094340324967561173252761363983154296875,
        "lon": 142.652947232075490546776563860476016998291015625
    },
    "bbox": {
        "min_lat": 46.6512967000000031703166314400732517242431640625,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.6537332999999989624484442174434661865234375
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 07:06 UTC 75.0% ▼
  • Duration: 6h 20m
  • Radius: 111 meters
  • Data Points: 53 AIS positions
  • Centroid: 46.6522, 142.6529
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 111.2999999999999971578290569595992565155029296875,
    "duration_minutes": 380,
    "points": 53,
    "centroid": {
        "lat": 46.65224355094340324967561173252761363983154296875,
        "lon": 142.652947232075490546776563860476016998291015625
    },
    "bbox": {
        "min_lat": 46.6512967000000031703166314400732517242431640625,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.6537332999999989624484442174434661865234375
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 06:03 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 35m
  • Data Points: 54 AIS positions
  • Period: 2026-10-27T06:51:31+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 395,
    "points_in_zone": 54,
    "first_point": {
        "ts": "2026-10-27T06:51:31+00:00",
        "lat": 46.652676700000000664658728055655956268310546875,
        "lon": 142.653621700000002192609827034175395965576171875
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 06:03 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 35m
  • Data Points: 54 AIS positions
  • Period: 2026-10-27T06:51:31+00:00 to 2026-10-27T13:26:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 395,
    "points_in_zone": 54,
    "first_point": {
        "ts": "2026-10-27T06:51:31+00:00",
        "lat": 46.652676700000000664658728055655956268310546875,
        "lon": 142.653621700000002192609827034175395965576171875
    },
    "last_point": {
        "ts": "2026-10-27T13:26:32+00:00",
        "lat": 46.6516682999999972025761962868273258209228515625,
        "lon": 142.652516700000006721893441863358020782470703125
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 06:03 UTC 75.0% ▼
  • Duration: 6h 35m
  • Radius: 112 meters
  • Data Points: 54 AIS positions
  • Centroid: 46.6523, 142.6530
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 112.400000000000005684341886080801486968994140625,
    "duration_minutes": 395,
    "points": 54,
    "centroid": {
        "lat": 46.65225157222221952224572305567562580108642578125,
        "lon": 142.652959722222249183687381446361541748046875
    },
    "bbox": {
        "min_lat": 46.6512967000000031703166314400732517242431640625,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.6537332999999989624484442174434661865234375
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 06:03 UTC 75.0% ▼
  • Duration: 6h 35m
  • Radius: 112 meters
  • Data Points: 54 AIS positions
  • Centroid: 46.6523, 142.6530
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 112.400000000000005684341886080801486968994140625,
    "duration_minutes": 395,
    "points": 54,
    "centroid": {
        "lat": 46.65225157222221952224572305567562580108642578125,
        "lon": 142.652959722222249183687381446361541748046875
    },
    "bbox": {
        "min_lat": 46.6512967000000031703166314400732517242431640625,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.6537332999999989624484442174434661865234375
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 05:09 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 26m
  • Data Points: 49 AIS positions
  • Period: 2026-10-27T05:57:32+00:00 to 2026-10-27T12:24:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 386.80000000000001136868377216160297393798828125,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-10-27T05:57:32+00:00",
        "lat": 46.65287000000000006139089236967265605926513671875,
        "lon": 142.653559999999998808561940677464008331298828125
    },
    "last_point": {
        "ts": "2026-10-27T12:24:17+00:00",
        "lat": 46.65174669999999679248503525741398334503173828125,
        "lon": 142.652236700000003111199475824832916259765625
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 05:09 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 26m
  • Data Points: 49 AIS positions
  • Period: 2026-10-27T05:57:32+00:00 to 2026-10-27T12:24:17+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 386.80000000000001136868377216160297393798828125,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-10-27T05:57:32+00:00",
        "lat": 46.65287000000000006139089236967265605926513671875,
        "lon": 142.653559999999998808561940677464008331298828125
    },
    "last_point": {
        "ts": "2026-10-27T12:24:17+00:00",
        "lat": 46.65174669999999679248503525741398334503173828125,
        "lon": 142.652236700000003111199475824832916259765625
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 05:09 UTC 75.0% ▼
  • Duration: 6h 26m
  • Radius: 129 meters
  • Data Points: 49 AIS positions
  • Centroid: 46.6524, 142.6531
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 129.099999999999994315658113919198513031005859375,
    "duration_minutes": 386.80000000000001136868377216160297393798828125,
    "points": 49,
    "centroid": {
        "lat": 46.652426526530604178333305753767490386962890625,
        "lon": 142.65309462653061700621037743985652923583984375
    },
    "bbox": {
        "min_lat": 46.65146829999999766869223094545304775238037109375,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.6537332999999989624484442174434661865234375
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 05:09 UTC 75.0% ▼
  • Duration: 6h 26m
  • Radius: 129 meters
  • Data Points: 49 AIS positions
  • Centroid: 46.6524, 142.6531
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 129.099999999999994315658113919198513031005859375,
    "duration_minutes": 386.80000000000001136868377216160297393798828125,
    "points": 49,
    "centroid": {
        "lat": 46.652426526530604178333305753767490386962890625,
        "lon": 142.65309462653061700621037743985652923583984375
    },
    "bbox": {
        "min_lat": 46.65146829999999766869223094545304775238037109375,
        "min_lon": 142.6521050000000059299054555594921112060546875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.6537332999999989624484442174434661865234375
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 04:03 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 33m
  • Data Points: 43 AIS positions
  • Period: 2026-10-27T04:42:31+00:00 to 2026-10-27T11:16:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 393.8999999999999772626324556767940521240234375,
    "points_in_zone": 43,
    "first_point": {
        "ts": "2026-10-27T04:42:31+00:00",
        "lat": 46.65253169999999727224349044263362884521484375,
        "lon": 142.65384330000000545624061487615108489990234375
    },
    "last_point": {
        "ts": "2026-10-27T11:16:22+00:00",
        "lat": 46.65146829999999766869223094545304775238037109375,
        "lon": 142.65258000000000038198777474462985992431640625
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 04:03 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 33m
  • Data Points: 43 AIS positions
  • Period: 2026-10-27T04:42:31+00:00 to 2026-10-27T11:16:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 393.8999999999999772626324556767940521240234375,
    "points_in_zone": 43,
    "first_point": {
        "ts": "2026-10-27T04:42:31+00:00",
        "lat": 46.65253169999999727224349044263362884521484375,
        "lon": 142.65384330000000545624061487615108489990234375
    },
    "last_point": {
        "ts": "2026-10-27T11:16:22+00:00",
        "lat": 46.65146829999999766869223094545304775238037109375,
        "lon": 142.65258000000000038198777474462985992431640625
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 04:03 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 156 meters
  • Data Points: 43 AIS positions
  • Centroid: 46.6527, 142.6535
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 156.400000000000005684341886080801486968994140625,
    "duration_minutes": 393.8999999999999772626324556767940521240234375,
    "points": 43,
    "centroid": {
        "lat": 46.6527350000000069485395215451717376708984375,
        "lon": 142.65346848837208426630240865051746368408203125
    },
    "bbox": {
        "min_lat": 46.65146829999999766869223094545304775238037109375,
        "min_lon": 142.65258000000000038198777474462985992431640625,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.65384330000000545624061487615108489990234375
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 04:03 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 156 meters
  • Data Points: 43 AIS positions
  • Centroid: 46.6527, 142.6535
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 156.400000000000005684341886080801486968994140625,
    "duration_minutes": 393.8999999999999772626324556767940521240234375,
    "points": 43,
    "centroid": {
        "lat": 46.6527350000000069485395215451717376708984375,
        "lon": 142.65346848837208426630240865051746368408203125
    },
    "bbox": {
        "min_lat": 46.65146829999999766869223094545304775238037109375,
        "min_lon": 142.65258000000000038198777474462985992431640625,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.65384330000000545624061487615108489990234375
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 03:09 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 36m
  • Data Points: 42 AIS positions
  • Period: 2026-10-27T03:51:32+00:00 to 2026-10-27T10:28:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 396.6000000000000227373675443232059478759765625,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-10-27T03:51:32+00:00",
        "lat": 46.65296169999999875699359108693897724151611328125,
        "lon": 142.653288300000014032775652594864368438720703125
    },
    "last_point": {
        "ts": "2026-10-27T10:28:06+00:00",
        "lat": 46.653068300000001045191311277449131011962890625,
        "lon": 142.653166700000014088800526224076747894287109375
    }
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 03:09 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 36m
  • Data Points: 42 AIS positions
  • Period: 2026-10-27T03:51:32+00:00 to 2026-10-27T10:28:06+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 396.6000000000000227373675443232059478759765625,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-10-27T03:51:32+00:00",
        "lat": 46.65296169999999875699359108693897724151611328125,
        "lon": 142.653288300000014032775652594864368438720703125
    },
    "last_point": {
        "ts": "2026-10-27T10:28:06+00:00",
        "lat": 46.653068300000001045191311277449131011962890625,
        "lon": 142.653166700000014088800526224076747894287109375
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 03:09 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 52 meters
  • Data Points: 42 AIS positions
  • Centroid: 46.6528, 142.6535
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 52.10000000000000142108547152020037174224853515625,
    "duration_minutes": 396.6000000000000227373675443232059478759765625,
    "points": 42,
    "centroid": {
        "lat": 46.6527777000000156704118126071989536285400390625,
        "lon": 142.653522773809498858099686913192272186279296875
    },
    "bbox": {
        "min_lat": 46.65238670000000098525561043061316013336181640625,
        "min_lon": 142.6530050000000073850969783961772918701171875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.65384330000000545624061487615108489990234375
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 03:09 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 52 meters
  • Data Points: 42 AIS positions
  • Centroid: 46.6528, 142.6535
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 52.10000000000000142108547152020037174224853515625,
    "duration_minutes": 396.6000000000000227373675443232059478759765625,
    "points": 42,
    "centroid": {
        "lat": 46.6527777000000156704118126071989536285400390625,
        "lon": 142.653522773809498858099686913192272186279296875
    },
    "bbox": {
        "min_lat": 46.65238670000000098525561043061316013336181640625,
        "min_lon": 142.6530050000000073850969783961772918701171875,
        "max_lat": 46.653081700000001319494913332164287567138671875,
        "max_lon": 142.65384330000000545624061487615108489990234375
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 02:42 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 38m
  • Data Points: 38 AIS positions
  • Period: 2026-10-27T02:51:32+00:00 to 2026-10-27T09:29:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 398,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-10-27T02:51:32+00:00",
        "lat": 46.6530867000000029065631679259240627288818359375,
        "lon": 142.652458300000006374830263666808605194091796875
    },
    "last_point": {
        "ts": "2026-10-27T09:29:32+00:00",
        "lat": 46.65238670000000098525561043061316013336181640625,
        "lon": 142.65361999999998943167156539857387542724609375
    }
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 02:42 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 38m
  • Data Points: 38 AIS positions
  • Period: 2026-10-27T02:51:32+00:00 to 2026-10-27T09:29:32+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 398,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-10-27T02:51:32+00:00",
        "lat": 46.6530867000000029065631679259240627288818359375,
        "lon": 142.652458300000006374830263666808605194091796875
    },
    "last_point": {
        "ts": "2026-10-27T09:29:32+00:00",
        "lat": 46.65238670000000098525561043061316013336181640625,
        "lon": 142.65361999999998943167156539857387542724609375
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 02:42 UTC 75.0% ▼
  • Duration: 6h 38m
  • Radius: 87 meters
  • Data Points: 38 AIS positions
  • Centroid: 46.6528, 142.6535
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 87.2999999999999971578290569595992565155029296875,
    "duration_minutes": 398,
    "points": 38,
    "centroid": {
        "lat": 46.65275859473684505474011530168354511260986328125,
        "lon": 142.65349232105262444747495464980602264404296875
    },
    "bbox": {
        "min_lat": 46.65238670000000098525561043061316013336181640625,
        "min_lon": 142.65245329999999057690729387104511260986328125,
        "max_lat": 46.6530867000000029065631679259240627288818359375,
        "max_lon": 142.65384330000000545624061487615108489990234375
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 02:42 UTC 75.0% ▼
  • Duration: 6h 38m
  • Radius: 87 meters
  • Data Points: 38 AIS positions
  • Centroid: 46.6528, 142.6535
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 87.2999999999999971578290569595992565155029296875,
    "duration_minutes": 398,
    "points": 38,
    "centroid": {
        "lat": 46.65275859473684505474011530168354511260986328125,
        "lon": 142.65349232105262444747495464980602264404296875
    },
    "bbox": {
        "min_lat": 46.65238670000000098525561043061316013336181640625,
        "min_lon": 142.65245329999999057690729387104511260986328125,
        "max_lat": 46.6530867000000029065631679259240627288818359375,
        "max_lon": 142.65384330000000545624061487615108489990234375
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18
Zone Dwell Sakhalin South Approach
Oct 27, 2026 01:15 UTC 80.0% ▼
  • Zone: Sakhalin South Approach
  • Duration: 6h 32m
  • Data Points: 34 AIS positions
  • Period: 2026-10-27T01:51:31+00:00 to 2026-10-27T08:23:57+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 392.3999999999999772626324556767940521240234375,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-10-27T01:51:31+00:00",
        "lat": 46.653036700000001246735337190330028533935546875,
        "lon": 142.6525566999999909967300482094287872314453125
    },
    "last_point": {
        "ts": "2026-10-27T08:23:57+00:00",
        "lat": 46.6527200000000021873347577638924121856689453125,
        "lon": 142.653626699999989568823366425931453704833984375
    }
}
Methodology: 2026.01.18
Zone Dwell Prigorodnoye/Sakhalin LNG
Oct 27, 2026 01:15 UTC 80.0% ▼
  • Zone: Prigorodnoye/Sakhalin LNG
  • Duration: 6h 32m
  • Data Points: 34 AIS positions
  • Period: 2026-10-27T01:51:31+00:00 to 2026-10-27T08:23:57+00:00
Show Raw Evidence JSON
{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 392.3999999999999772626324556767940521240234375,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-10-27T01:51:31+00:00",
        "lat": 46.653036700000001246735337190330028533935546875,
        "lon": 142.6525566999999909967300482094287872314453125
    },
    "last_point": {
        "ts": "2026-10-27T08:23:57+00:00",
        "lat": 46.6527200000000021873347577638924121856689453125,
        "lon": 142.653626699999989568823366425931453704833984375
    }
}
Methodology: 2026.01.18
Loiter Prigorodnoye/Sakhalin LNG
Oct 27, 2026 01:15 UTC 75.0% ▼
  • Duration: 6h 32m
  • Radius: 83 meters
  • Data Points: 34 AIS positions
  • Centroid: 46.6528, 142.6534
  • Zone: Prigorodnoye/Sakhalin LNG
Show Raw Evidence JSON
{
    "radius_m": 82.7000000000000028421709430404007434844970703125,
    "duration_minutes": 392.3999999999999772626324556767940521240234375,
    "points": 34,
    "centroid": {
        "lat": 46.65279779411765304075743188150227069854736328125,
        "lon": 142.653400485294099553357227705419063568115234375
    },
    "bbox": {
        "min_lat": 46.65243170000000105801518657244741916656494140625,
        "min_lon": 142.65239500000001271473593078553676605224609375,
        "max_lat": 46.65308830000000028803697205148637294769287109375,
        "max_lon": 142.65384330000000545624061487615108489990234375
    },
    "zone_id": "russia_prigorodnoye"
}
Methodology: 2026.01.18
Loiter Sakhalin South Approach
Oct 27, 2026 01:15 UTC 75.0% ▼
  • Duration: 6h 32m
  • Radius: 83 meters
  • Data Points: 34 AIS positions
  • Centroid: 46.6528, 142.6534
  • Zone: Sakhalin South Approach
Show Raw Evidence JSON
{
    "radius_m": 82.7000000000000028421709430404007434844970703125,
    "duration_minutes": 392.3999999999999772626324556767940521240234375,
    "points": 34,
    "centroid": {
        "lat": 46.65279779411765304075743188150227069854736328125,
        "lon": 142.653400485294099553357227705419063568115234375
    },
    "bbox": {
        "min_lat": 46.65243170000000105801518657244741916656494140625,
        "min_lon": 142.65239500000001271473593078553676605224609375,
        "max_lat": 46.65308830000000028803697205148637294769287109375,
        "max_lon": 142.65384330000000545624061487615108489990234375
    },
    "zone_id": "russia_sakhalin_south"
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Oct 28 13:32 46.6497 142.6570 2.4 kn 232.5° Prigorodnoye/Sakhalin LNG
Oct 28 13:23 46.6492 142.6572 0.9 kn 245.3° Prigorodnoye/Sakhalin LNG
Oct 28 13:18 46.6492 142.6578 0.1 kn 199.7° Prigorodnoye/Sakhalin LNG
Oct 28 13:16 46.6491 142.6581 3.3 kn 209.5° Prigorodnoye/Sakhalin LNG
Oct 28 13:09 46.6492 142.6583 0.7 kn 355.2° Prigorodnoye/Sakhalin LNG
Oct 28 13:05 46.6495 142.6583 3.3 kn 30.2° Prigorodnoye/Sakhalin LNG
Oct 28 12:55 46.6489 142.6583 0.4 kn 23.9° Prigorodnoye/Sakhalin LNG
Oct 28 12:53 46.6492 142.6581 2.1 kn 218.4° Prigorodnoye/Sakhalin LNG
Oct 28 12:45 46.6492 142.6584 0.7 kn 335.1° Prigorodnoye/Sakhalin LNG
Oct 28 12:41 46.6490 142.6582 0.8 kn 310.8° Prigorodnoye/Sakhalin LNG
Oct 28 12:35 46.6492 142.6584 0.8 kn 331.2° Prigorodnoye/Sakhalin LNG
Oct 28 12:33 46.6492 142.6583 0.4 kn 210.2° Prigorodnoye/Sakhalin LNG
Oct 28 12:28 46.6492 142.6584 1.8 kn 211.5° Prigorodnoye/Sakhalin LNG
Oct 28 12:25 46.6492 142.6583 1.6 kn 175.1° Prigorodnoye/Sakhalin LNG
Oct 28 12:21 46.6490 142.6583 1.4 kn 211.7° Prigorodnoye/Sakhalin LNG
Oct 28 12:12 46.6493 142.6584 1.4 kn 315.9° Prigorodnoye/Sakhalin LNG
Oct 28 12:06 46.6493 142.6584 1.2 kn 344.3° Prigorodnoye/Sakhalin LNG
Oct 28 12:03 46.6494 142.6583 3.0 kn 333.7° Prigorodnoye/Sakhalin LNG
Oct 28 11:58 46.6489 142.6582 1.2 kn 176.1° Prigorodnoye/Sakhalin LNG
Oct 28 11:51 46.6492 142.6583 1.4 kn 254.7° Prigorodnoye/Sakhalin LNG

Showing 20 of 100 recent positions.

Data Source

Vessel observed through FleetLeaks' AIS monitoring system in zones of interest. Identity and position data derived from AIS broadcasts and public maritime databases.

Disclaimer: AIS data can be spoofed or falsified. Vessel identities should be independently verified before making compliance decisions.