OMSK

{
    "vessel_a": {
        "mmsi": 273264690,
        "imo": 9329655,
        "name": "PROXIMA",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "min_distance_m": 40.7000000000000028421709430404007434844970703125,
    "avg_distance_m": 51,
    "distance_consistency_m": 16.800000000000000710542735760100185871124267578125,
    "duration_minutes": 36.2000000000000028421709430404007434844970703125,
    "overlap_duration_s": 2172,
    "speed_a_avg": 0.729999999999999982236431605997495353221893310546875,
    "speed_a_std": 0.67000000000000003996802888650563545525074005126953125,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.729999999999999982236431605997495353221893310546875,
            "max_sog": 1.600000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-08-26T00:43:57+00:00",
        "end": "2026-08-26T01:20:09+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 67,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 41m, avg 51m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 36 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "both very slow; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b117m"
            },
            "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 (PROXIMA and OMSK) maintained close proximity (min 41m, avg 51m) for 36 minutes. Both vessels were slow-moving (avg speeds 0.7 and 0.0 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": "pending"
    }
}

{
    "vessel_a": {
        "mmsi": 273264690,
        "imo": 9329655,
        "name": "PROXIMA",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "min_distance_m": 40.7000000000000028421709430404007434844970703125,
    "avg_distance_m": 51,
    "distance_consistency_m": 16.800000000000000710542735760100185871124267578125,
    "duration_minutes": 36.2000000000000028421709430404007434844970703125,
    "overlap_duration_s": 2172,
    "speed_a_avg": 0.729999999999999982236431605997495353221893310546875,
    "speed_a_std": 0.67000000000000003996802888650563545525074005126953125,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.729999999999999982236431605997495353221893310546875,
            "max_sog": 1.600000000000000088817841970012523233890533447265625
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-08-26T00:43:57+00:00",
        "end": "2026-08-26T01:20:09+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 67,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 41m, avg 51m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 36 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "both very slow; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b117m"
            },
            "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 (PROXIMA and OMSK) maintained close proximity (min 41m, avg 51m) for 36 minutes. Both vessels were slow-moving (avg speeds 0.7 and 0.0 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": "pending"
    }
}

{
    "vessel_a": {
        "mmsi": 273264690,
        "imo": 9329655,
        "name": "PROXIMA",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "min_distance_m": 26.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 41.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 10.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 72.2000000000000028421709430404007434844970703125,
    "overlap_duration_s": 4329,
    "speed_a_avg": 0.59999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.65000000000000002220446049250313080847263336181640625,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.59999999999999997779553950749686919152736663818359375,
            "max_sog": 2
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-08-25T23:02:30+00:00",
        "end": "2026-08-26T00:14:39+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 77,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 26m, avg 41m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 72 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "both very slow; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b110m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (PROXIMA and OMSK) maintained close proximity (min 26m, avg 41m) for 72 minutes. Both vessels were slow-moving (avg speeds 0.6 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."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.66134579999999942856447887606918811798095703125,
            "lon": 142.660267900000008012284524738788604736328125
        },
        "time_window": {
            "start_ts": "2026-08-25T23:02:30+00:00",
            "end_ts": "2026-08-26T00:14:39+00:00"
        },
        "searched_at": "2026-08-26T01:30:12.285221+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 273264690,
        "imo": 9329655,
        "name": "PROXIMA",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "min_distance_m": 26.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 41.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 10.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 72.2000000000000028421709430404007434844970703125,
    "overlap_duration_s": 4329,
    "speed_a_avg": 0.59999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.65000000000000002220446049250313080847263336181640625,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.59999999999999997779553950749686919152736663818359375,
            "max_sog": 2
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-08-25T23:02:30+00:00",
        "end": "2026-08-26T00:14:39+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 77,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 26m, avg 41m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 72 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "both very slow; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b110m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (PROXIMA and OMSK) maintained close proximity (min 26m, avg 41m) for 72 minutes. Both vessels were slow-moving (avg speeds 0.6 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."
    },
    "sar": {
        "status": "pending"
    }
}

{
    "vessel_a": {
        "mmsi": 273264690,
        "imo": 9329655,
        "name": "PROXIMA",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "min_distance_m": 20.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 49.5,
    "distance_consistency_m": 15.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 69.599999999999994315658113919198513031005859375,
    "overlap_duration_s": 4178,
    "speed_a_avg": 0.57999999999999996003197111349436454474925994873046875,
    "speed_a_std": 0.39000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.13000000000000000444089209850062616169452667236328125,
    "speed_b_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.57999999999999996003197111349436454474925994873046875,
            "max_sog": 1.399999999999999911182158029987476766109466552734375
        },
        "vessel_b": {
            "avg_sog": 0.13000000000000000444089209850062616169452667236328125,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-08-25T21:05:27+00:00",
        "end": "2026-08-25T22:15:05+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 20m, avg 50m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 70 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both very slow; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b116m"
            },
            "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 (PROXIMA and OMSK) maintained close proximity (min 20m, avg 50m) for 70 minutes. Both vessels were slow-moving (avg speeds 0.6 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."
    }
}

{
    "vessel_a": {
        "mmsi": 273264690,
        "imo": 9329655,
        "name": "PROXIMA",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "min_distance_m": 20.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 49.5,
    "distance_consistency_m": 15.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 69.599999999999994315658113919198513031005859375,
    "overlap_duration_s": 4178,
    "speed_a_avg": 0.57999999999999996003197111349436454474925994873046875,
    "speed_a_std": 0.39000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0.13000000000000000444089209850062616169452667236328125,
    "speed_b_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.57999999999999996003197111349436454474925994873046875,
            "max_sog": 1.399999999999999911182158029987476766109466552734375
        },
        "vessel_b": {
            "avg_sog": 0.13000000000000000444089209850062616169452667236328125,
            "max_sog": 0.5
        }
    },
    "time_window": {
        "start": "2026-08-25T21:05:27+00:00",
        "end": "2026-08-25T22:15:05+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 20m, avg 50m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 70 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both very slow; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b116m"
            },
            "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 (PROXIMA and OMSK) maintained close proximity (min 20m, avg 50m) for 70 minutes. Both vessels were slow-moving (avg speeds 0.6 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."
    }
}

{
    "vessel_a": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273264690,
        "imo": 9329655,
        "name": "PROXIMA",
        "flag": "RUSSIA"
    },
    "min_distance_m": 20.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 55.5,
    "distance_consistency_m": 46.60000000000000142108547152020037174224853515625,
    "duration_minutes": 234.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 14086,
    "speed_a_avg": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_a_std": 0.2399999999999999911182158029987476766109466552734375,
    "speed_b_avg": 0.67000000000000003996802888650563545525074005126953125,
    "speed_b_std": 0.54000000000000003552713678800500929355621337890625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1600000000000000033306690738754696212708950042724609375,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        },
        "vessel_b": {
            "avg_sog": 0.67000000000000003996802888650563545525074005126953125,
            "max_sog": 2
        }
    },
    "time_window": {
        "start": "2026-08-25T20:55:56+00:00",
        "end": "2026-08-26T00:50:42+00:00"
    },
    "points_count": {
        "vessel_a": 22,
        "vessel_b": 22
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 84,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 20m, avg 56m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 235 minutes"
            },
            "speed_stability": {
                "score": 12,
                "max": 20,
                "detail": "both very slow; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b147m"
            },
            "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 PROXIMA) maintained close proximity (min 20m, avg 56m) for 235 minutes. Both vessels were slow-moving (avg speeds 0.2 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."
    }
}

{
    "vessel_a": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273264690,
        "imo": 9329655,
        "name": "PROXIMA",
        "flag": "RUSSIA"
    },
    "min_distance_m": 20.300000000000000710542735760100185871124267578125,
    "avg_distance_m": 55.5,
    "distance_consistency_m": 46.60000000000000142108547152020037174224853515625,
    "duration_minutes": 234.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 14086,
    "speed_a_avg": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_a_std": 0.2399999999999999911182158029987476766109466552734375,
    "speed_b_avg": 0.67000000000000003996802888650563545525074005126953125,
    "speed_b_std": 0.54000000000000003552713678800500929355621337890625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1600000000000000033306690738754696212708950042724609375,
            "max_sog": 0.90000000000000002220446049250313080847263336181640625
        },
        "vessel_b": {
            "avg_sog": 0.67000000000000003996802888650563545525074005126953125,
            "max_sog": 2
        }
    },
    "time_window": {
        "start": "2026-08-25T20:55:56+00:00",
        "end": "2026-08-26T00:50:42+00:00"
    },
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    "points_in_zone": 57,
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        "ts": "2026-08-01T04:50:48+00:00",
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}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 393.5,
    "points_in_zone": 57,
    "first_point": {
        "ts": "2026-08-01T04:50:48+00:00",
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}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 394.8999999999999772626324556767940521240234375,
    "points_in_zone": 59,
    "first_point": {
        "ts": "2026-08-01T03:52:23+00:00",
        "lat": 46.66523500000000268528310698457062244415283203125,
        "lon": 142.662761700000004339017323218286037445068359375
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    "last_point": {
        "ts": "2026-08-01T10:27:15+00:00",
        "lat": 46.65135670000000089885361376218497753143310546875,
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}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 394.8999999999999772626324556767940521240234375,
    "points_in_zone": 59,
    "first_point": {
        "ts": "2026-08-01T03:52:23+00:00",
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        "ts": "2026-08-01T10:27:15+00:00",
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{
    "radius_m": 1122.09999999999990905052982270717620849609375,
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    "points": 18,
    "centroid": {
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    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 1122.09999999999990905052982270717620849609375,
    "duration_minutes": 97.400000000000005684341886080801486968994140625,
    "points": 18,
    "centroid": {
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        "min_lon": 142.652186699999987240516929887235164642333984375,
        "max_lat": 46.66523500000000268528310698457062244415283203125,
        "max_lon": 142.66291830000000118161551654338836669921875
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    "zone_id": "russia_sakhalin_south"
}

{
    "vessel_a": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273264690,
        "imo": 9329655,
        "name": "PROXIMA",
        "flag": "RUSSIA"
    },
    "min_distance_m": 28.5,
    "avg_distance_m": 58,
    "distance_consistency_m": 48.39999999999999857891452847979962825775146484375,
    "duration_minutes": 84.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 5056,
    "speed_a_avg": 0.34999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.61999999999999999555910790149937383830547332763671875,
    "speed_b_avg": 0.35999999999999998667732370449812151491641998291015625,
    "speed_b_std": 0.409999999999999975575093458246556110680103302001953125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.34999999999999997779553950749686919152736663818359375,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
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        "vessel_b": {
            "avg_sog": 0.35999999999999998667732370449812151491641998291015625,
            "max_sog": 1.3000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-08-01T03:19:23+00:00",
        "end": "2026-08-01T04:43:39+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 76,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 28m, avg 58m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 84 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b148m"
            },
            "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 (OMSK and PROXIMA) maintained close proximity (min 28m, avg 58m) for 84 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.4 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273264690,
        "imo": 9329655,
        "name": "PROXIMA",
        "flag": "RUSSIA"
    },
    "min_distance_m": 28.5,
    "avg_distance_m": 58,
    "distance_consistency_m": 48.39999999999999857891452847979962825775146484375,
    "duration_minutes": 84.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 5056,
    "speed_a_avg": 0.34999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.61999999999999999555910790149937383830547332763671875,
    "speed_b_avg": 0.35999999999999998667732370449812151491641998291015625,
    "speed_b_std": 0.409999999999999975575093458246556110680103302001953125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.34999999999999997779553950749686919152736663818359375,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
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        "vessel_b": {
            "avg_sog": 0.35999999999999998667732370449812151491641998291015625,
            "max_sog": 1.3000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-08-01T03:19:23+00:00",
        "end": "2026-08-01T04:43:39+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 76,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 28m, avg 58m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 84 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b148m"
            },
            "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 (OMSK and PROXIMA) maintained close proximity (min 28m, avg 58m) for 84 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.4 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273264690,
        "imo": 9329655,
        "name": "PROXIMA",
        "flag": "RUSSIA"
    },
    "min_distance_m": 28.5,
    "avg_distance_m": 57.10000000000000142108547152020037174224853515625,
    "distance_consistency_m": 46.7999999999999971578290569595992565155029296875,
    "duration_minutes": 117.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 7037,
    "speed_a_avg": 0.330000000000000015543122344752191565930843353271484375,
    "speed_a_std": 0.60999999999999998667732370449812151491641998291015625,
    "speed_b_avg": 0.340000000000000024424906541753443889319896697998046875,
    "speed_b_std": 0.40000000000000002220446049250313080847263336181640625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.330000000000000015543122344752191565930843353271484375,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
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        "vessel_b": {
            "avg_sog": 0.340000000000000024424906541753443889319896697998046875,
            "max_sog": 1.3000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-08-01T02:46:22+00:00",
        "end": "2026-08-01T04:43:39+00:00"
    },
    "points_count": {
        "vessel_a": 15,
        "vessel_b": 15
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 81,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 28m, avg 57m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 117 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b147m"
            },
            "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 PROXIMA) maintained close proximity (min 28m, avg 57m) for 117 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.664990299999999479041434824466705322265625,
            "lon": 142.662928800000003093373379670083522796630859375
        },
        "time_window": {
            "start_ts": "2026-08-01T02:46:22+00:00",
            "end_ts": "2026-08-01T04:43:39+00:00"
        },
        "searched_at": "2026-08-01T09:00:07.244148+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 273371330,
        "imo": 9418509,
        "name": "OMSK",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273264690,
        "imo": 9329655,
        "name": "PROXIMA",
        "flag": "RUSSIA"
    },
    "min_distance_m": 28.5,
    "avg_distance_m": 57.10000000000000142108547152020037174224853515625,
    "distance_consistency_m": 46.7999999999999971578290569595992565155029296875,
    "duration_minutes": 117.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 7037,
    "speed_a_avg": 0.330000000000000015543122344752191565930843353271484375,
    "speed_a_std": 0.60999999999999998667732370449812151491641998291015625,
    "speed_b_avg": 0.340000000000000024424906541753443889319896697998046875,
    "speed_b_std": 0.40000000000000002220446049250313080847263336181640625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.330000000000000015543122344752191565930843353271484375,
            "max_sog": 1.899999999999999911182158029987476766109466552734375
        },
        "vessel_b": {
            "avg_sog": 0.340000000000000024424906541753443889319896697998046875,
            "max_sog": 1.3000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-08-01T02:46:22+00:00",
        "end": "2026-08-01T04:43:39+00:00"
    },
    "points_count": {
        "vessel_a": 15,
        "vessel_b": 15
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 81,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 28m, avg 57m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 117 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b147m"
            },
            "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 PROXIMA) maintained close proximity (min 28m, avg 57m) for 117 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.664990299999999479041434824466705322265625,
            "lon": 142.662928800000003093373379670083522796630859375
        },
        "time_window": {
            "start_ts": "2026-08-01T02:46:22+00:00",
            "end_ts": "2026-08-01T04:43:39+00:00"
        },
        "searched_at": "2026-08-01T09:00:10.599992+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 391.8999999999999772626324556767940521240234375,
    "points_in_zone": 56,
    "first_point": {
        "ts": "2026-08-01T02:46:22+00:00",
        "lat": 46.66507829999999756864781375043094158172607421875,
        "lon": 142.662946699999992006269167177379131317138671875
    },
    "last_point": {
        "ts": "2026-08-01T09:18:14+00:00",
        "lat": 46.6511516999999997779013938270509243011474609375,
        "lon": 142.642836700000003702371031977236270904541015625
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}