ZAPRAVSHCHIK 05

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 385.8999999999999772626324556767940521240234375,
    "points_in_zone": 58,
    "first_point": {
        "ts": "2026-07-23T00:18:44+00:00",
        "lat": 46.62516670000000118534444482065737247467041015625,
        "lon": 142.76614169999999148785718716681003570556640625
    },
    "last_point": {
        "ts": "2026-07-23T06:44:41+00:00",
        "lat": 46.62517170000000277241269941441714763641357421875,
        "lon": 142.766154999999997698978404514491558074951171875
    }
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 385.8999999999999772626324556767940521240234375,
    "points_in_zone": 58,
    "first_point": {
        "ts": "2026-07-23T00:18:44+00:00",
        "lat": 46.62516670000000118534444482065737247467041015625,
        "lon": 142.76614169999999148785718716681003570556640625
    },
    "last_point": {
        "ts": "2026-07-23T06:44:41+00:00",
        "lat": 46.62517170000000277241269941441714763641357421875,
        "lon": 142.766154999999997698978404514491558074951171875
    }
}

{
    "radius_m": 1.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 385.8999999999999772626324556767940521240234375,
    "points": 58,
    "centroid": {
        "lat": 46.62517249999998369958120747469365596771240234375,
        "lon": 142.766147186206893593407585285604000091552734375
    },
    "bbox": {
        "min_lat": 46.62516500000000263526089838705956935882568359375,
        "min_lon": 142.766134999999991350705386139452457427978515625,
        "max_lat": 46.6251816999999988411218510009348392486572265625,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 1.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 385.8999999999999772626324556767940521240234375,
    "points": 58,
    "centroid": {
        "lat": 46.62517249999998369958120747469365596771240234375,
        "lon": 142.766147186206893593407585285604000091552734375
    },
    "bbox": {
        "min_lat": 46.62516500000000263526089838705956935882568359375,
        "min_lon": 142.766134999999991350705386139452457427978515625,
        "max_lat": 46.6251816999999988411218510009348392486572265625,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 141.80000000000001136868377216160297393798828125,
    "avg_distance_m": 260.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 91.900000000000005684341886080801486968994140625,
    "duration_minutes": 380.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 22853,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.2600000000000000088817841970012523233890533447265625,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 1.8000000000000000444089209850062616169452667236328125
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-23T00:20:13+00:00",
        "end": "2026-07-23T06:41:06+00:00"
    },
    "points_count": {
        "vessel_a": 89,
        "vessel_b": 89
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 83,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 142m, avg 261m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 381 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b192m"
            },
            "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 (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 142m, avg 261m) for 381 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). Moderate distance variation observed during the encounter. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 141.80000000000001136868377216160297393798828125,
    "avg_distance_m": 260.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 91.900000000000005684341886080801486968994140625,
    "duration_minutes": 380.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 22853,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.2600000000000000088817841970012523233890533447265625,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 1.8000000000000000444089209850062616169452667236328125
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-23T00:20:13+00:00",
        "end": "2026-07-23T06:41:06+00:00"
    },
    "points_count": {
        "vessel_a": 89,
        "vessel_b": 89
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 83,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 142m, avg 261m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 381 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b192m"
            },
            "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 (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 142m, avg 261m) for 381 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). Moderate distance variation observed during the encounter. Event occurred in Sakhalin South Approach, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 406.6000000000000227373675443232059478759765625,
    "avg_distance_m": 408.5,
    "distance_consistency_m": 1.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 55.60000000000000142108547152020037174224853515625,
    "overlap_duration_s": 3339,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-22T23:06:54+00:00",
        "end": "2026-07-23T00:02:33+00:00"
    },
    "points_count": {
        "vessel_a": 19,
        "vessel_b": 19
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 407m, avg 408m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 56 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 407m, avg 408m) for 56 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.62355099999999907822711975313723087310791015625,
            "lon": 142.767414999999999736246536485850811004638671875
        },
        "time_window": {
            "start_ts": "2026-07-22T23:06:54+00:00",
            "end_ts": "2026-07-23T00:02:33+00:00"
        },
        "searched_at": "2026-07-23T05:45:04.363090+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 406.6000000000000227373675443232059478759765625,
    "avg_distance_m": 408.5,
    "distance_consistency_m": 1.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 55.60000000000000142108547152020037174224853515625,
    "overlap_duration_s": 3339,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-22T23:06:54+00:00",
        "end": "2026-07-23T00:02:33+00:00"
    },
    "points_count": {
        "vessel_a": 19,
        "vessel_b": 19
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 407m, avg 408m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 56 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 407m, avg 408m) for 56 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.62355099999999907822711975313723087310791015625,
            "lon": 142.767414999999999736246536485850811004638671875
        },
        "time_window": {
            "start_ts": "2026-07-22T23:06:54+00:00",
            "end_ts": "2026-07-23T00:02:33+00:00"
        },
        "searched_at": "2026-07-23T05:45:06.808775+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 391,
    "points_in_zone": 62,
    "first_point": {
        "ts": "2026-07-22T23:01:42+00:00",
        "lat": 46.6251682999999985668182489462196826934814453125,
        "lon": 142.76614330000001018561306409537792205810546875
    },
    "last_point": {
        "ts": "2026-07-23T05:32:42+00:00",
        "lat": 46.6251749999999987039700499735772609710693359375,
        "lon": 142.766153300000013359749573282897472381591796875
    }
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 391,
    "points_in_zone": 62,
    "first_point": {
        "ts": "2026-07-22T23:01:42+00:00",
        "lat": 46.6251682999999985668182489462196826934814453125,
        "lon": 142.76614330000001018561306409537792205810546875
    },
    "last_point": {
        "ts": "2026-07-23T05:32:42+00:00",
        "lat": 46.6251749999999987039700499735772609710693359375,
        "lon": 142.766153300000013359749573282897472381591796875
    }
}

{
    "radius_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 391,
    "points": 62,
    "centroid": {
        "lat": 46.625171719354824517722590826451778411865234375,
        "lon": 142.766147016128996938277850858867168426513671875
    },
    "bbox": {
        "min_lat": 46.62516329999999697974999435245990753173828125,
        "min_lon": 142.766134999999991350705386139452457427978515625,
        "max_lat": 46.6251816999999988411218510009348392486572265625,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 391,
    "points": 62,
    "centroid": {
        "lat": 46.625171719354824517722590826451778411865234375,
        "lon": 142.766147016128996938277850858867168426513671875
    },
    "bbox": {
        "min_lat": 46.62516329999999697974999435245990753173828125,
        "min_lon": 142.766134999999991350705386139452457427978515625,
        "max_lat": 46.6251816999999988411218510009348392486572265625,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 406.6000000000000227373675443232059478759765625,
    "avg_distance_m": 408.5,
    "distance_consistency_m": 1,
    "duration_minutes": 116,
    "overlap_duration_s": 6960,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-22T22:06:33+00:00",
        "end": "2026-07-23T00:02:33+00:00"
    },
    "points_count": {
        "vessel_a": 39,
        "vessel_b": 39
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 407m, avg 408m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 116 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 407m, avg 408m) for 116 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.62354950000000286536305793561041355133056640625,
            "lon": 142.767413699999991649747244082391262054443359375
        },
        "time_window": {
            "start_ts": "2026-07-22T22:06:33+00:00",
            "end_ts": "2026-07-23T00:02:33+00:00"
        },
        "searched_at": "2026-07-23T04:45:02.083501+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 406.6000000000000227373675443232059478759765625,
    "avg_distance_m": 408.5,
    "distance_consistency_m": 1,
    "duration_minutes": 116,
    "overlap_duration_s": 6960,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-22T22:06:33+00:00",
        "end": "2026-07-23T00:02:33+00:00"
    },
    "points_count": {
        "vessel_a": 39,
        "vessel_b": 39
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 407m, avg 408m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 116 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 407m, avg 408m) for 116 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.62354950000000286536305793561041355133056640625,
            "lon": 142.767413699999991649747244082391262054443359375
        },
        "time_window": {
            "start_ts": "2026-07-22T22:06:33+00:00",
            "end_ts": "2026-07-23T00:02:33+00:00"
        },
        "searched_at": "2026-07-23T04:45:04.923319+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 391,
    "points_in_zone": 71,
    "first_point": {
        "ts": "2026-07-22T22:10:44+00:00",
        "lat": 46.62516670000000118534444482065737247467041015625,
        "lon": 142.766150000000010322764865122735500335693359375
    },
    "last_point": {
        "ts": "2026-07-23T04:41:43+00:00",
        "lat": 46.625169999999997116901795379817485809326171875,
        "lon": 142.76614169999999148785718716681003570556640625
    }
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 391,
    "points_in_zone": 71,
    "first_point": {
        "ts": "2026-07-22T22:10:44+00:00",
        "lat": 46.62516670000000118534444482065737247467041015625,
        "lon": 142.766150000000010322764865122735500335693359375
    },
    "last_point": {
        "ts": "2026-07-23T04:41:43+00:00",
        "lat": 46.625169999999997116901795379817485809326171875,
        "lon": 142.76614169999999148785718716681003570556640625
    }
}

{
    "radius_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 391,
    "points": 71,
    "centroid": {
        "lat": 46.6251709859154885862153605557978153228759765625,
        "lon": 142.766147514084451586313662119209766387939453125
    },
    "bbox": {
        "min_lat": 46.62516169999999959827619022689759731292724609375,
        "min_lon": 142.766134999999991350705386139452457427978515625,
        "max_lat": 46.6251816999999988411218510009348392486572265625,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 391,
    "points": 71,
    "centroid": {
        "lat": 46.6251709859154885862153605557978153228759765625,
        "lon": 142.766147514084451586313662119209766387939453125
    },
    "bbox": {
        "min_lat": 46.62516169999999959827619022689759731292724609375,
        "min_lon": 142.766134999999991350705386139452457427978515625,
        "max_lat": 46.6251816999999988411218510009348392486572265625,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 405.5,
    "avg_distance_m": 408.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 174.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 10491,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-22T21:07:42+00:00",
        "end": "2026-07-23T00:02:33+00:00"
    },
    "points_count": {
        "vessel_a": 57,
        "vessel_b": 57
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 406m, avg 409m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 175 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 406m, avg 409m) for 175 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.62354810000000071568138082511723041534423828125,
            "lon": 142.767413199999992912125890143215656280517578125
        },
        "time_window": {
            "start_ts": "2026-07-22T21:07:42+00:00",
            "end_ts": "2026-07-23T00:02:33+00:00"
        },
        "searched_at": "2026-07-23T03:45:04.910728+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 405.5,
    "avg_distance_m": 408.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 174.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 10491,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-22T21:07:42+00:00",
        "end": "2026-07-23T00:02:33+00:00"
    },
    "points_count": {
        "vessel_a": 57,
        "vessel_b": 57
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 406m, avg 409m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 175 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 406m, avg 409m) for 175 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.62354810000000071568138082511723041534423828125,
            "lon": 142.767413199999992912125890143215656280517578125
        },
        "time_window": {
            "start_ts": "2026-07-22T21:07:42+00:00",
            "end_ts": "2026-07-23T00:02:33+00:00"
        },
        "searched_at": "2026-07-23T03:45:07.492403+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 395.8999999999999772626324556767940521240234375,
    "points_in_zone": 74,
    "first_point": {
        "ts": "2026-07-22T21:43:45+00:00",
        "lat": 46.62516329999999697974999435245990753173828125,
        "lon": 142.76615670000001045991666615009307861328125
    },
    "last_point": {
        "ts": "2026-07-23T04:19:42+00:00",
        "lat": 46.625169999999997116901795379817485809326171875,
        "lon": 142.766138299999994387690094299614429473876953125
    }
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 395.8999999999999772626324556767940521240234375,
    "points_in_zone": 74,
    "first_point": {
        "ts": "2026-07-22T21:43:45+00:00",
        "lat": 46.62516329999999697974999435245990753173828125,
        "lon": 142.76615670000001045991666615009307861328125
    },
    "last_point": {
        "ts": "2026-07-23T04:19:42+00:00",
        "lat": 46.625169999999997116901795379817485809326171875,
        "lon": 142.766138299999994387690094299614429473876953125
    }
}

{
    "radius_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 395.8999999999999772626324556767940521240234375,
    "points": 74,
    "centroid": {
        "lat": 46.62517063108106185609358362853527069091796875,
        "lon": 142.76614808648645293942536227405071258544921875
    },
    "bbox": {
        "min_lat": 46.62515830000000249810909735970199108123779296875,
        "min_lon": 142.766134999999991350705386139452457427978515625,
        "max_lat": 46.6251816999999988411218510009348392486572265625,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 395.8999999999999772626324556767940521240234375,
    "points": 74,
    "centroid": {
        "lat": 46.62517063108106185609358362853527069091796875,
        "lon": 142.76614808648645293942536227405071258544921875
    },
    "bbox": {
        "min_lat": 46.62515830000000249810909735970199108123779296875,
        "min_lon": 142.766134999999991350705386139452457427978515625,
        "max_lat": 46.6251816999999988411218510009348392486572265625,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 405.5,
    "avg_distance_m": 408.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 238.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 14322,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-22T20:03:51+00:00",
        "end": "2026-07-23T00:02:33+00:00"
    },
    "points_count": {
        "vessel_a": 81,
        "vessel_b": 81
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 406m, avg 409m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 239 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 406m, avg 409m) for 239 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.62354619999999982837834977544844150543212890625,
            "lon": 142.7674111000000038984580896794795989990234375
        },
        "time_window": {
            "start_ts": "2026-07-22T20:03:51+00:00",
            "end_ts": "2026-07-23T00:02:33+00:00"
        },
        "searched_at": "2026-07-23T02:45:05.374879+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 405.5,
    "avg_distance_m": 408.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 238.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 14322,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-22T20:03:51+00:00",
        "end": "2026-07-23T00:02:33+00:00"
    },
    "points_count": {
        "vessel_a": 81,
        "vessel_b": 81
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 406m, avg 409m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 239 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 406m, avg 409m) for 239 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.62354619999999982837834977544844150543212890625,
            "lon": 142.7674111000000038984580896794795989990234375
        },
        "time_window": {
            "start_ts": "2026-07-22T20:03:51+00:00",
            "end_ts": "2026-07-23T00:02:33+00:00"
        },
        "searched_at": "2026-07-23T02:45:08.447010+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 395,
    "points_in_zone": 73,
    "first_point": {
        "ts": "2026-07-22T20:52:43+00:00",
        "lat": 46.6251682999999985668182489462196826934814453125,
        "lon": 142.76614169999999148785718716681003570556640625
    },
    "last_point": {
        "ts": "2026-07-23T03:27:43+00:00",
        "lat": 46.6251783000000017409547581337392330169677734375,
        "lon": 142.766158300000000735963112674653530120849609375
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 395,
    "points_in_zone": 73,
    "first_point": {
        "ts": "2026-07-22T20:52:43+00:00",
        "lat": 46.6251682999999985668182489462196826934814453125,
        "lon": 142.76614169999999148785718716681003570556640625
    },
    "last_point": {
        "ts": "2026-07-23T03:27:43+00:00",
        "lat": 46.6251783000000017409547581337392330169677734375,
        "lon": 142.766158300000000735963112674653530120849609375
    }
}

{
    "radius_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 395,
    "points": 73,
    "centroid": {
        "lat": 46.62516940547941857175828772597014904022216796875,
        "lon": 142.766148497260246585938148200511932373046875
    },
    "bbox": {
        "min_lat": 46.62515669999999801120793563313782215118408203125,
        "min_lon": 142.766138299999994387690094299614429473876953125,
        "max_lat": 46.6251816999999988411218510009348392486572265625,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 395,
    "points": 73,
    "centroid": {
        "lat": 46.62516940547941857175828772597014904022216796875,
        "lon": 142.766148497260246585938148200511932373046875
    },
    "bbox": {
        "min_lat": 46.62515669999999801120793563313782215118408203125,
        "min_lon": 142.766138299999994387690094299614429473876953125,
        "max_lat": 46.6251816999999988411218510009348392486572265625,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 405.5,
    "avg_distance_m": 409,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 298.5,
    "overlap_duration_s": 17912,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-22T19:04:01+00:00",
        "end": "2026-07-23T00:02:33+00:00"
    },
    "points_count": {
        "vessel_a": 106,
        "vessel_b": 106
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 406m, avg 409m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 298 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 406m, avg 409m) for 298 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.6235453999999975849277689121663570404052734375,
            "lon": 142.76740860000001021035131998360157012939453125
        },
        "time_window": {
            "start_ts": "2026-07-22T19:04:01+00:00",
            "end_ts": "2026-07-23T00:02:33+00:00"
        },
        "searched_at": "2026-07-23T01:45:01.775317+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 405.5,
    "avg_distance_m": 409,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 298.5,
    "overlap_duration_s": 17912,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-22T19:04:01+00:00",
        "end": "2026-07-23T00:02:33+00:00"
    },
    "points_count": {
        "vessel_a": 106,
        "vessel_b": 106
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 406m, avg 409m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 298 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 406m, avg 409m) for 298 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.6235453999999975849277689121663570404052734375,
            "lon": 142.76740860000001021035131998360157012939453125
        },
        "time_window": {
            "start_ts": "2026-07-22T19:04:01+00:00",
            "end_ts": "2026-07-23T00:02:33+00:00"
        },
        "searched_at": "2026-07-23T01:45:05.598979+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 397,
    "points_in_zone": 77,
    "first_point": {
        "ts": "2026-07-22T19:50:43+00:00",
        "lat": 46.62516670000000118534444482065737247467041015625,
        "lon": 142.766138299999994387690094299614429473876953125
    },
    "last_point": {
        "ts": "2026-07-23T02:27:44+00:00",
        "lat": 46.625173300000000153886503539979457855224609375,
        "lon": 142.766150000000010322764865122735500335693359375
    }
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 397,
    "points_in_zone": 77,
    "first_point": {
        "ts": "2026-07-22T19:50:43+00:00",
        "lat": 46.62516670000000118534444482065737247467041015625,
        "lon": 142.766138299999994387690094299614429473876953125
    },
    "last_point": {
        "ts": "2026-07-23T02:27:44+00:00",
        "lat": 46.625173300000000153886503539979457855224609375,
        "lon": 142.766150000000010322764865122735500335693359375
    }
}

{
    "radius_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 397,
    "points": 77,
    "centroid": {
        "lat": 46.62516765974023513763313530944287776947021484375,
        "lon": 142.766147296103810049316962249577045440673828125
    },
    "bbox": {
        "min_lat": 46.62515669999999801120793563313782215118408203125,
        "min_lon": 142.76613670000000411164364777505397796630859375,
        "max_lat": 46.6251800000000002910383045673370361328125,
        "max_lon": 142.766158300000000735963112674653530120849609375
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 397,
    "points": 77,
    "centroid": {
        "lat": 46.62516765974023513763313530944287776947021484375,
        "lon": 142.766147296103810049316962249577045440673828125
    },
    "bbox": {
        "min_lat": 46.62515669999999801120793563313782215118408203125,
        "min_lon": 142.76613670000000411164364777505397796630859375,
        "max_lat": 46.6251800000000002910383045673370361328125,
        "max_lon": 142.766158300000000735963112674653530120849609375
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 405.5,
    "avg_distance_m": 409,
    "distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 316.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 19012,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-22T18:45:41+00:00",
        "end": "2026-07-23T00:02:33+00:00"
    },
    "points_count": {
        "vessel_a": 114,
        "vessel_b": 114
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 406m, avg 409m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 317 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 406m, avg 409m) for 317 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 405.5,
    "avg_distance_m": 409,
    "distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 316.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 19012,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-22T18:45:41+00:00",
        "end": "2026-07-23T00:02:33+00:00"
    },
    "points_count": {
        "vessel_a": 114,
        "vessel_b": 114
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 406m, avg 409m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 317 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 406m, avg 409m) for 317 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 397.1000000000000227373675443232059478759765625,
    "points_in_zone": 81,
    "first_point": {
        "ts": "2026-07-22T18:50:41+00:00",
        "lat": 46.6251682999999985668182489462196826934814453125,
        "lon": 142.76614000000000714862835593521595001220703125
    },
    "last_point": {
        "ts": "2026-07-23T01:27:44+00:00",
        "lat": 46.6251783000000017409547581337392330169677734375,
        "lon": 142.766146700000007285780156962573528289794921875
    }
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 397.1000000000000227373675443232059478759765625,
    "points_in_zone": 81,
    "first_point": {
        "ts": "2026-07-22T18:50:41+00:00",
        "lat": 46.6251682999999985668182489462196826934814453125,
        "lon": 142.76614000000000714862835593521595001220703125
    },
    "last_point": {
        "ts": "2026-07-23T01:27:44+00:00",
        "lat": 46.6251783000000017409547581337392330169677734375,
        "lon": 142.766146700000007285780156962573528289794921875
    }
}

{
    "radius_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 397.1000000000000227373675443232059478759765625,
    "points": 81,
    "centroid": {
        "lat": 46.62516726172838588126978720538318157196044921875,
        "lon": 142.766146440740584466766449622809886932373046875
    },
    "bbox": {
        "min_lat": 46.62515669999999801120793563313782215118408203125,
        "min_lon": 142.76613670000000411164364777505397796630859375,
        "max_lat": 46.6251783000000017409547581337392330169677734375,
        "max_lon": 142.766158300000000735963112674653530120849609375
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 397.1000000000000227373675443232059478759765625,
    "points": 81,
    "centroid": {
        "lat": 46.62516726172838588126978720538318157196044921875,
        "lon": 142.766146440740584466766449622809886932373046875
    },
    "bbox": {
        "min_lat": 46.62515669999999801120793563313782215118408203125,
        "min_lon": 142.76613670000000411164364777505397796630859375,
        "max_lat": 46.6251783000000017409547581337392330169677734375,
        "max_lon": 142.766158300000000735963112674653530120849609375
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 90,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-07-22T07:05:43+00:00",
        "lat": 46.6251766999999972540535964071750640869140625,
        "lon": 142.766146700000007285780156962573528289794921875
    },
    "last_point": {
        "ts": "2026-07-22T08:35:44+00:00",
        "lat": 46.6251749999999987039700499735772609710693359375,
        "lon": 142.766150000000010322764865122735500335693359375
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 90,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-07-22T07:05:43+00:00",
        "lat": 46.6251766999999972540535964071750640869140625,
        "lon": 142.766146700000007285780156962573528289794921875
    },
    "last_point": {
        "ts": "2026-07-22T08:35:44+00:00",
        "lat": 46.6251749999999987039700499735772609710693359375,
        "lon": 142.766150000000010322764865122735500335693359375
    }
}

{
    "radius_m": 1,
    "duration_minutes": 90,
    "points": 23,
    "centroid": {
        "lat": 46.625180434782606653243419714272022247314453125,
        "lon": 142.76614956086956453873426653444766998291015625
    },
    "bbox": {
        "min_lat": 46.6251749999999987039700499735772609710693359375,
        "min_lon": 142.76614000000000714862835593521595001220703125,
        "max_lat": 46.62518829999999780966390972025692462921142578125,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 1,
    "duration_minutes": 90,
    "points": 23,
    "centroid": {
        "lat": 46.625180434782606653243419714272022247314453125,
        "lon": 142.76614956086956453873426653444766998291015625
    },
    "bbox": {
        "min_lat": 46.6251749999999987039700499735772609710693359375,
        "min_lon": 142.76614000000000714862835593521595001220703125,
        "max_lat": 46.62518829999999780966390972025692462921142578125,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 153,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-07-22T06:02:42+00:00",
        "lat": 46.6251766999999972540535964071750640869140625,
        "lon": 142.766150000000010322764865122735500335693359375
    },
    "last_point": {
        "ts": "2026-07-22T08:35:44+00:00",
        "lat": 46.6251749999999987039700499735772609710693359375,
        "lon": 142.766150000000010322764865122735500335693359375
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 153,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-07-22T06:02:42+00:00",
        "lat": 46.6251766999999972540535964071750640869140625,
        "lon": 142.766150000000010322764865122735500335693359375
    },
    "last_point": {
        "ts": "2026-07-22T08:35:44+00:00",
        "lat": 46.6251749999999987039700499735772609710693359375,
        "lon": 142.766150000000010322764865122735500335693359375
    }
}

{
    "radius_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 153,
    "points": 38,
    "centroid": {
        "lat": 46.62517820789472722253776737488806247711181640625,
        "lon": 142.766147978947401497862301766872406005859375
    },
    "bbox": {
        "min_lat": 46.625169999999997116901795379817485809326171875,
        "min_lon": 142.766138299999994387690094299614429473876953125,
        "max_lat": 46.62518829999999780966390972025692462921142578125,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 153,
    "points": 38,
    "centroid": {
        "lat": 46.62517820789472722253776737488806247711181640625,
        "lon": 142.766147978947401497862301766872406005859375
    },
    "bbox": {
        "min_lat": 46.625169999999997116901795379817485809326171875,
        "min_lon": 142.766138299999994387690094299614429473876953125,
        "max_lat": 46.62518829999999780966390972025692462921142578125,
        "max_lon": 142.7661600000000134969013743102550506591796875
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 210,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-07-22T05:05:43+00:00",
        "lat": 46.6251749999999987039700499735772609710693359375,
        "lon": 142.76615670000001045991666615009307861328125
    },
    "last_point": {
        "ts": "2026-07-22T08:35:44+00:00",
        "lat": 46.6251749999999987039700499735772609710693359375,
        "lon": 142.766150000000010322764865122735500335693359375
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 210,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-07-22T05:05:43+00:00",
        "lat": 46.6251749999999987039700499735772609710693359375,
        "lon": 142.76615670000001045991666615009307861328125
    },
    "last_point": {
        "ts": "2026-07-22T08:35:44+00:00",
        "lat": 46.6251749999999987039700499735772609710693359375,
        "lon": 142.766150000000010322764865122735500335693359375
    }
}

{
    "radius_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 210,
    "points": 49,
    "centroid": {
        "lat": 46.625177930612238696994609199464321136474609375,
        "lon": 142.766148908163330588649841956794261932373046875
    },
    "bbox": {
        "min_lat": 46.6251682999999985668182489462196826934814453125,
        "min_lon": 142.766138299999994387690094299614429473876953125,
        "max_lat": 46.62518829999999780966390972025692462921142578125,
        "max_lon": 142.766163299999988112176652066409587860107421875
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 210,
    "points": 49,
    "centroid": {
        "lat": 46.625177930612238696994609199464321136474609375,
        "lon": 142.766148908163330588649841956794261932373046875
    },
    "bbox": {
        "min_lat": 46.6251682999999985668182489462196826934814453125,
        "min_lon": 142.766138299999994387690094299614429473876953125,
        "max_lat": 46.62518829999999780966390972025692462921142578125,
        "max_lon": 142.766163299999988112176652066409587860107421875
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 228,
    "points_in_zone": 52,
    "first_point": {
        "ts": "2026-07-22T04:47:43+00:00",
        "lat": 46.62517170000000277241269941441714763641357421875,
        "lon": 142.76614499999999452484189532697200775146484375
    },
    "last_point": {
        "ts": "2026-07-22T08:35:44+00:00",
        "lat": 46.6251749999999987039700499735772609710693359375,
        "lon": 142.766150000000010322764865122735500335693359375
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 228,
    "points_in_zone": 52,
    "first_point": {
        "ts": "2026-07-22T04:47:43+00:00",
        "lat": 46.62517170000000277241269941441714763641357421875,
        "lon": 142.76614499999999452484189532697200775146484375
    },
    "last_point": {
        "ts": "2026-07-22T08:35:44+00:00",
        "lat": 46.6251749999999987039700499735772609710693359375,
        "lon": 142.766150000000010322764865122735500335693359375
    }
}

{
    "radius_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 228,
    "points": 52,
    "centroid": {
        "lat": 46.62517740961538237343120272271335124969482421875,
        "lon": 142.766148682692374904945609159767627716064453125
    },
    "bbox": {
        "min_lat": 46.62516670000000118534444482065737247467041015625,
        "min_lon": 142.766138299999994387690094299614429473876953125,
        "max_lat": 46.62518829999999780966390972025692462921142578125,
        "max_lon": 142.766163299999988112176652066409587860107421875
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 228,
    "points": 52,
    "centroid": {
        "lat": 46.62517740961538237343120272271335124969482421875,
        "lon": 142.766148682692374904945609159767627716064453125
    },
    "bbox": {
        "min_lat": 46.62516670000000118534444482065737247467041015625,
        "min_lon": 142.766138299999994387690094299614429473876953125,
        "max_lat": 46.62518829999999780966390972025692462921142578125,
        "max_lon": 142.766163299999988112176652066409587860107421875
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 115.599999999999994315658113919198513031005859375,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-07-19T22:00:03+00:00",
        "lat": 46.6257250000000027512214728631079196929931640625,
        "lon": 142.762370000000004210960469208657741546630859375
    },
    "last_point": {
        "ts": "2026-07-19T23:55:41+00:00",
        "lat": 46.6208232999999978574123815633356571197509765625,
        "lon": 142.75781829999999672509147785604000091552734375
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 115.599999999999994315658113919198513031005859375,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-07-19T22:00:03+00:00",
        "lat": 46.6257250000000027512214728631079196929931640625,
        "lon": 142.762370000000004210960469208657741546630859375
    },
    "last_point": {
        "ts": "2026-07-19T23:55:41+00:00",
        "lat": 46.6208232999999978574123815633356571197509765625,
        "lon": 142.75781829999999672509147785604000091552734375
    }
}

{
    "radius_m": 591.5,
    "duration_minutes": 115.599999999999994315658113919198513031005859375,
    "points": 19,
    "centroid": {
        "lat": 46.621271315789471145762945525348186492919921875,
        "lon": 142.758143763157846706235432066023349761962890625
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781499999999368810676969587802886962890625,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.762370000000004210960469208657741546630859375
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 591.5,
    "duration_minutes": 115.599999999999994315658113919198513031005859375,
    "points": 19,
    "centroid": {
        "lat": 46.621271315789471145762945525348186492919921875,
        "lon": 142.758143763157846706235432066023349761962890625
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781499999999368810676969587802886962890625,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.762370000000004210960469208657741546630859375
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 150,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-07-19T21:25:40+00:00",
        "lat": 46.6251366999999987683622748591005802154541015625,
        "lon": 142.7662516999999979816493578255176544189453125
    },
    "last_point": {
        "ts": "2026-07-19T23:55:41+00:00",
        "lat": 46.6208232999999978574123815633356571197509765625,
        "lon": 142.75781829999999672509147785604000091552734375
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 150,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-07-19T21:25:40+00:00",
        "lat": 46.6251366999999987683622748591005802154541015625,
        "lon": 142.7662516999999979816493578255176544189453125
    },
    "last_point": {
        "ts": "2026-07-19T23:55:41+00:00",
        "lat": 46.6208232999999978574123815633356571197509765625,
        "lon": 142.75781829999999672509147785604000091552734375
    }
}

{
    "radius_m": 603.3999999999999772626324556767940521240234375,
    "duration_minutes": 150,
    "points": 24,
    "centroid": {
        "lat": 46.62206333749998776738721062429249286651611328125,
        "lon": 142.759850204166667708705062977969646453857421875
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781499999999368810676969587802886962890625,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.766646699999995462349033914506435394287109375
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 603.3999999999999772626324556767940521240234375,
    "duration_minutes": 150,
    "points": 24,
    "centroid": {
        "lat": 46.62206333749998776738721062429249286651611328125,
        "lon": 142.759850204166667708705062977969646453857421875
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781499999999368810676969587802886962890625,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.766646699999995462349033914506435394287109375
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 401.8999999999999772626324556767940521240234375,
    "avg_distance_m": 403.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 1,
    "duration_minutes": 33.39999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2001,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-19T21:19:45+00:00",
        "end": "2026-07-19T21:53:06+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 402m, avg 404m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 33 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 402m, avg 404m) for 33 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.62352820000000264144546235911548137664794921875,
            "lon": 142.7674733000000060201273299753665924072265625
        },
        "time_window": {
            "start_ts": "2026-07-19T21:19:45+00:00",
            "end_ts": "2026-07-19T21:53:06+00:00"
        },
        "searched_at": "2026-07-19T22:15:10.658205+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 401.8999999999999772626324556767940521240234375,
    "avg_distance_m": 403.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 1,
    "duration_minutes": 33.39999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2001,
    "speed_a_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-19T21:19:45+00:00",
        "end": "2026-07-19T21:53:06+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 402m, avg 404m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 33 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 402m, avg 404m) for 33 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.62352820000000264144546235911548137664794921875,
            "lon": 142.7674733000000060201273299753665924072265625
        },
        "time_window": {
            "start_ts": "2026-07-19T21:19:45+00:00",
            "end_ts": "2026-07-19T21:53:06+00:00"
        },
        "searched_at": "2026-07-19T22:15:17.732275+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 400.8999999999999772626324556767940521240234375,
    "avg_distance_m": 403.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 1.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 43.7999999999999971578290569595992565155029296875,
    "overlap_duration_s": 2630,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-19T20:07:36+00:00",
        "end": "2026-07-19T20:51:26+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 401m, avg 403m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 44 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 401m, avg 403m) for 44 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.62352489999999960446075419895350933074951171875,
            "lon": 142.7674623999999994339304976165294647216796875
        },
        "time_window": {
            "start_ts": "2026-07-19T20:07:36+00:00",
            "end_ts": "2026-07-19T20:51:26+00:00"
        },
        "searched_at": "2026-07-20T02:45:04.832513+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 400.8999999999999772626324556767940521240234375,
    "avg_distance_m": 403.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 1.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 43.7999999999999971578290569595992565155029296875,
    "overlap_duration_s": 2630,
    "speed_a_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-19T20:07:36+00:00",
        "end": "2026-07-19T20:51:26+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 401m, avg 403m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 44 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 401m, avg 403m) for 44 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.62352489999999960446075419895350933074951171875,
            "lon": 142.7674623999999994339304976165294647216796875
        },
        "time_window": {
            "start_ts": "2026-07-19T20:07:36+00:00",
            "end_ts": "2026-07-19T20:51:26+00:00"
        },
        "searched_at": "2026-07-20T02:45:07.839459+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 229,
    "points_in_zone": 30,
    "first_point": {
        "ts": "2026-07-19T20:06:43+00:00",
        "lat": 46.6251316999999971812940202653408050537109375,
        "lon": 142.766240000000010468284017406404018402099609375
    },
    "last_point": {
        "ts": "2026-07-19T23:55:41+00:00",
        "lat": 46.6208232999999978574123815633356571197509765625,
        "lon": 142.75781829999999672509147785604000091552734375
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 229,
    "points_in_zone": 30,
    "first_point": {
        "ts": "2026-07-19T20:06:43+00:00",
        "lat": 46.6251316999999971812940202653408050537109375,
        "lon": 142.766240000000010468284017406404018402099609375
    },
    "last_point": {
        "ts": "2026-07-19T23:55:41+00:00",
        "lat": 46.6208232999999978574123815633356571197509765625,
        "lon": 142.75781829999999672509147785604000091552734375
    }
}

{
    "radius_m": 484.3999999999999772626324556767940521240234375,
    "duration_minutes": 229,
    "points": 30,
    "centroid": {
        "lat": 46.622677449999997634222381748259067535400390625,
        "lon": 142.761130386666621916447184048593044281005859375
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781499999999368810676969587802886962890625,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.766646699999995462349033914506435394287109375
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 484.3999999999999772626324556767940521240234375,
    "duration_minutes": 229,
    "points": 30,
    "centroid": {
        "lat": 46.622677449999997634222381748259067535400390625,
        "lon": 142.761130386666621916447184048593044281005859375
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781499999999368810676969587802886962890625,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.766646699999995462349033914506435394287109375
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "vessel_a": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 357.1000000000000227373675443232059478759765625,
    "avg_distance_m": 399.5,
    "distance_consistency_m": 12.800000000000000710542735760100185871124267578125,
    "duration_minutes": 122,
    "overlap_duration_s": 7321,
    "speed_a_avg": 0.11999999999999999555910790149937383830547332763671875,
    "speed_a_std": 0.409999999999999975575093458246556110680103302001953125,
    "speed_b_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.11999999999999999555910790149937383830547332763671875,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-19T19:54:42+00:00",
        "end": "2026-07-19T21:56:43+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 77,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 357m, avg 400m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 122 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b113m"
            },
            "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 (ZAPRAVSHCHIK 05 and AZOV) maintained close proximity (min 357m, avg 400m) for 122 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 357.1000000000000227373675443232059478759765625,
    "avg_distance_m": 399.5,
    "distance_consistency_m": 12.800000000000000710542735760100185871124267578125,
    "duration_minutes": 122,
    "overlap_duration_s": 7321,
    "speed_a_avg": 0.11999999999999999555910790149937383830547332763671875,
    "speed_a_std": 0.409999999999999975575093458246556110680103302001953125,
    "speed_b_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.11999999999999999555910790149937383830547332763671875,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-19T19:54:42+00:00",
        "end": "2026-07-19T21:56:43+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 77,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 357m, avg 400m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 122 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b113m"
            },
            "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 (ZAPRAVSHCHIK 05 and AZOV) maintained close proximity (min 357m, avg 400m) for 122 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    }
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 286,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-07-19T19:09:40+00:00",
        "lat": 46.6251333000000016681951819919049739837646484375,
        "lon": 142.766256700000013779572327621281147003173828125
    },
    "last_point": {
        "ts": "2026-07-19T23:55:41+00:00",
        "lat": 46.6208232999999978574123815633356571197509765625,
        "lon": 142.75781829999999672509147785604000091552734375
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 286,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-07-19T19:09:40+00:00",
        "lat": 46.6251333000000016681951819919049739837646484375,
        "lon": 142.766256700000013779572327621281147003173828125
    },
    "last_point": {
        "ts": "2026-07-19T23:55:41+00:00",
        "lat": 46.6208232999999978574123815633356571197509765625,
        "lon": 142.75781829999999672509147785604000091552734375
    }
}

{
    "radius_m": 428.30000000000001136868377216160297393798828125,
    "duration_minutes": 286,
    "points": 38,
    "centroid": {
        "lat": 46.62319460789473168915719725191593170166015625,
        "lon": 142.762209386842101821457617916166782379150390625
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781499999999368810676969587802886962890625,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.766646699999995462349033914506435394287109375
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 428.30000000000001136868377216160297393798828125,
    "duration_minutes": 286,
    "points": 38,
    "centroid": {
        "lat": 46.62319460789473168915719725191593170166015625,
        "lon": 142.762209386842101821457617916166782379150390625
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781499999999368810676969587802886962890625,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.766646699999995462349033914506435394287109375
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "vessel_a": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 357.1000000000000227373675443232059478759765625,
    "avg_distance_m": 400.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 9.800000000000000710542735760100185871124267578125,
    "duration_minutes": 227,
    "overlap_duration_s": 13620,
    "speed_a_avg": 0.070000000000000006661338147750939242541790008544921875,
    "speed_a_std": 0.320000000000000006661338147750939242541790008544921875,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.070000000000000006661338147750939242541790008544921875,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-19T18:09:43+00:00",
        "end": "2026-07-19T21:56:43+00:00"
    },
    "points_count": {
        "vessel_a": 22,
        "vessel_b": 22
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 77,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 357m, avg 401m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 227 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable 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 (ZAPRAVSHCHIK 05 and AZOV) maintained close proximity (min 357m, avg 401m) for 227 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 357.1000000000000227373675443232059478759765625,
    "avg_distance_m": 400.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 9.800000000000000710542735760100185871124267578125,
    "duration_minutes": 227,
    "overlap_duration_s": 13620,
    "speed_a_avg": 0.070000000000000006661338147750939242541790008544921875,
    "speed_a_std": 0.320000000000000006661338147750939242541790008544921875,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.070000000000000006661338147750939242541790008544921875,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-19T18:09:43+00:00",
        "end": "2026-07-19T21:56:43+00:00"
    },
    "points_count": {
        "vessel_a": 22,
        "vessel_b": 22
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 77,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 357m, avg 401m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 227 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable 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 (ZAPRAVSHCHIK 05 and AZOV) maintained close proximity (min 357m, avg 401m) for 227 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 355,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-07-19T18:00:41+00:00",
        "lat": 46.6251366999999987683622748591005802154541015625,
        "lon": 142.766266699999988531999406404793262481689453125
    },
    "last_point": {
        "ts": "2026-07-19T23:55:41+00:00",
        "lat": 46.6208232999999978574123815633356571197509765625,
        "lon": 142.75781829999999672509147785604000091552734375
    }
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 355,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-07-19T18:00:41+00:00",
        "lat": 46.6251366999999987683622748591005802154541015625,
        "lon": 142.766266699999988531999406404793262481689453125
    },
    "last_point": {
        "ts": "2026-07-19T23:55:41+00:00",
        "lat": 46.6208232999999978574123815633356571197509765625,
        "lon": 142.75781829999999672509147785604000091552734375
    }
}

{
    "radius_m": 464.30000000000001136868377216160297393798828125,
    "duration_minutes": 355,
    "points": 42,
    "centroid": {
        "lat": 46.62337984523809808479200000874698162078857421875,
        "lon": 142.76259520000002112283254973590373992919921875
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781499999999368810676969587802886962890625,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.766646699999995462349033914506435394287109375
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 464.30000000000001136868377216160297393798828125,
    "duration_minutes": 355,
    "points": 42,
    "centroid": {
        "lat": 46.62337984523809808479200000874698162078857421875,
        "lon": 142.76259520000002112283254973590373992919921875
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781499999999368810676969587802886962890625,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.766646699999995462349033914506435394287109375
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 381,
    "points_in_zone": 46,
    "first_point": {
        "ts": "2026-07-19T17:34:42+00:00",
        "lat": 46.6251383000000032552634365856647491455078125,
        "lon": 142.766265000000004192770575173199176788330078125
    },
    "last_point": {
        "ts": "2026-07-19T23:55:41+00:00",
        "lat": 46.6208232999999978574123815633356571197509765625,
        "lon": 142.75781829999999672509147785604000091552734375
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 381,
    "points_in_zone": 46,
    "first_point": {
        "ts": "2026-07-19T17:34:42+00:00",
        "lat": 46.6251383000000032552634365856647491455078125,
        "lon": 142.766265000000004192770575173199176788330078125
    },
    "last_point": {
        "ts": "2026-07-19T23:55:41+00:00",
        "lat": 46.6208232999999978574123815633356571197509765625,
        "lon": 142.75781829999999672509147785604000091552734375
    }
}

{
    "radius_m": 494,
    "duration_minutes": 381,
    "points": 46,
    "centroid": {
        "lat": 46.62353246739132117681947420351207256317138671875,
        "lon": 142.76291413043480815758812241256237030029296875
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781499999999368810676969587802886962890625,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.766646699999995462349033914506435394287109375
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 494,
    "duration_minutes": 381,
    "points": 46,
    "centroid": {
        "lat": 46.62353246739132117681947420351207256317138671875,
        "lon": 142.76291413043480815758812241256237030029296875
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781499999999368810676969587802886962890625,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.766646699999995462349033914506435394287109375
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 400.1000000000000227373675443232059478759765625,
    "avg_distance_m": 401.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 0.90000000000000002220446049250313080847263336181640625,
    "duration_minutes": 47.5,
    "overlap_duration_s": 2851,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-19T17:27:34+00:00",
        "end": "2026-07-19T18:15:05+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 400m, avg 401m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 48 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "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 (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 400m, avg 401m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "min_distance_m": 400.1000000000000227373675443232059478759765625,
    "avg_distance_m": 401.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 0.90000000000000002220446049250313080847263336181640625,
    "duration_minutes": 47.5,
    "overlap_duration_s": 2851,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-07-19T17:27:34+00:00",
        "end": "2026-07-19T18:15:05+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 400m, avg 401m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 48 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "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 (AZOV and ZAPRAVSHCHIK 05) maintained close proximity (min 400m, avg 401m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 357.1000000000000227373675443232059478759765625,
    "avg_distance_m": 400.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 8.5,
    "duration_minutes": 304,
    "overlap_duration_s": 18239,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.2800000000000000266453525910037569701671600341796875,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-19T16:52:44+00:00",
        "end": "2026-07-19T21:56:43+00:00"
    },
    "points_count": {
        "vessel_a": 29,
        "vessel_b": 29
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 357m, avg 401m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 304 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b18m"
            },
            "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 (ZAPRAVSHCHIK 05 and AZOV) maintained close proximity (min 357m, avg 401m) for 304 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 357.1000000000000227373675443232059478759765625,
    "avg_distance_m": 400.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 8.5,
    "duration_minutes": 304,
    "overlap_duration_s": 18239,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.2800000000000000266453525910037569701671600341796875,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-19T16:52:44+00:00",
        "end": "2026-07-19T21:56:43+00:00"
    },
    "points_count": {
        "vessel_a": 29,
        "vessel_b": 29
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 357m, avg 401m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 304 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b18m"
            },
            "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 (ZAPRAVSHCHIK 05 and AZOV) maintained close proximity (min 357m, avg 401m) for 304 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    }
}

{
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "dwell_minutes": 390,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-07-19T16:52:44+00:00",
        "lat": 46.6251299999999986312104738317430019378662109375,
        "lon": 142.766256700000013779572327621281147003173828125
    },
    "last_point": {
        "ts": "2026-07-19T23:22:42+00:00",
        "lat": 46.62082500000000351292328559793531894683837890625,
        "lon": 142.75783000000001266016624867916107177734375
    }
}

{
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "dwell_minutes": 390,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-07-19T16:52:44+00:00",
        "lat": 46.6251299999999986312104738317430019378662109375,
        "lon": 142.766256700000013779572327621281147003173828125
    },
    "last_point": {
        "ts": "2026-07-19T23:22:42+00:00",
        "lat": 46.62082500000000351292328559793531894683837890625,
        "lon": 142.75783000000001266016624867916107177734375
    }
}

{
    "radius_m": 579.200000000000045474735088646411895751953125,
    "duration_minutes": 390,
    "points": 42,
    "centroid": {
        "lat": 46.6239958357142967315667192451655864715576171875,
        "lon": 142.763800992857198934871121309697628021240234375
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781829999999672509147785604000091552734375,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.766646699999995462349033914506435394287109375
    },
    "zone_id": "russia_prigorodnoye"
}

{
    "radius_m": 579.200000000000045474735088646411895751953125,
    "duration_minutes": 390,
    "points": 42,
    "centroid": {
        "lat": 46.6239958357142967315667192451655864715576171875,
        "lon": 142.763800992857198934871121309697628021240234375
    },
    "bbox": {
        "min_lat": 46.62080499999999716465026722289621829986572265625,
        "min_lon": 142.75781829999999672509147785604000091552734375,
        "max_lat": 46.6257250000000027512214728631079196929931640625,
        "max_lon": 142.766646699999995462349033914506435394287109375
    },
    "zone_id": "russia_sakhalin_south"
}

{
    "vessel_a": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 400.19999999999998863131622783839702606201171875,
    "avg_distance_m": 402.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 1,
    "duration_minutes": 377,
    "overlap_duration_s": 22618,
    "speed_a_avg": 0,
    "speed_a_std": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-19T15:08:42+00:00",
        "end": "2026-07-19T21:25:40+00:00"
    },
    "points_count": {
        "vessel_a": 39,
        "vessel_b": 39
    },
    "zone_id": "russia_prigorodnoye",
    "zone_name": "Prigorodnoye\/Sakhalin LNG",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 400m, avg 402m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 377 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Prigorodnoye\/Sakhalin LNG"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ZAPRAVSHCHIK 05 and AZOV) maintained close proximity (min 400m, avg 402m) for 377 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Prigorodnoye\/Sakhalin LNG, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.6235309999999998353814589790999889373779296875,
            "lon": 142.76746919999999363426468335092067718505859375
        },
        "time_window": {
            "start_ts": "2026-07-19T15:08:42+00:00",
            "end_ts": "2026-07-19T21:25:40+00:00"
        },
        "searched_at": "2026-07-19T21:45:12.086871+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 273439180,
        "imo": 8930744,
        "name": "ZAPRAVSHCHIK 05",
        "flag": "Russia"
    },
    "vessel_b": {
        "mmsi": 273456730,
        "imo": 9084401,
        "name": "AZOV",
        "flag": "Russia"
    },
    "min_distance_m": 400.19999999999998863131622783839702606201171875,
    "avg_distance_m": 402.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 1,
    "duration_minutes": 377,
    "overlap_duration_s": 22618,
    "speed_a_avg": 0,
    "speed_a_std": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-07-19T15:08:42+00:00",
        "end": "2026-07-19T21:25:40+00:00"
    },
    "points_count": {
        "vessel_a": 39,
        "vessel_b": 39
    },
    "zone_id": "russia_sakhalin_south",
    "zone_name": "Sakhalin South Approach",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 400m, avg 402m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 377 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Sakhalin South Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ZAPRAVSHCHIK 05 and AZOV) maintained close proximity (min 400m, avg 402m) for 377 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Sakhalin South Approach, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 46.6235309999999998353814589790999889373779296875,
            "lon": 142.76746919999999363426468335092067718505859375
        },
        "time_window": {
            "start_ts": "2026-07-19T15:08:42+00:00",
            "end_ts": "2026-07-19T21:25:40+00:00"
        },
        "searched_at": "2026-07-19T21:45:14.941182+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}