Vanino

{
    "vessel_a": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
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    "min_distance_m": 21.10000000000000142108547152020037174224853515625,
    "avg_distance_m": 22.89999999999999857891452847979962825775146484375,
    "distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 56.5,
    "overlap_duration_s": 3392,
    "speed_a_avg": 0,
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    "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": "2026-05-04T07:07:07+00:00",
        "end": "2026-05-04T08:03:39+00:00"
    },
    "points_count": {
        "vessel_a": 19,
        "vessel_b": 19
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 21m, avg 23m"
            },
            "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: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 21m, avg 23m) 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 Ust-Luga Terminal Complex, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 59.7719282999999990124706528149545192718505859375,
            "lon": 28.443560000000001508624336565844714641571044921875
        },
        "time_window": {
            "start_ts": "2026-05-04T07:07:07+00:00",
            "end_ts": "2026-05-04T08:03:39+00:00"
        },
        "searched_at": "2026-05-04T13:45:10.219966+00:00",
        "scene_id": "S1C_EW_GRDM_1SDH_20260504T044051_20260504T044151_007499_00F398_3E10_COG",
        "scene_datetime": "2026-05-04T04:40:51.268359Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 21.9211600000000004229150363244116306304931640625,
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        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/05\/event_483619_thumbnail_20260504134513.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/05\/event_483619_thumbnail_20260504134513.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

{
    "vessel_a": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "min_distance_m": 14.0999999999999996447286321199499070644378662109375,
    "avg_distance_m": 22.5,
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    "duration_minutes": 118,
    "overlap_duration_s": 7081,
    "speed_a_avg": 0,
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    "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": "2026-05-04T06:05:38+00:00",
        "end": "2026-05-04T08:03:39+00:00"
    },
    "points_count": {
        "vessel_a": 40,
        "vessel_b": 40
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 22m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 118 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 14m, avg 22m) for 118 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 Ust-Luga Terminal Complex, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
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        "time_window": {
            "start_ts": "2026-05-04T06:05:38+00:00",
            "end_ts": "2026-05-04T08:03:39+00:00"
        },
        "searched_at": "2026-05-04T12:45:04.044089+00:00",
        "scene_id": "S1C_EW_GRDM_1SDH_20260504T044051_20260504T044151_007499_00F398_3E10_COG",
        "scene_datetime": "2026-05-04T04:40:51.268359Z",
        "platform": "sentinel-1c",
        "bbox": {
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        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/05\/event_483488_thumbnail_20260504124508.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/05\/event_483488_thumbnail_20260504124508.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
    },
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    "avg_distance_m": 22.5,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 164.19999999999998863131622783839702606201171875,
    "overlap_duration_s": 9854,
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    "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": "2026-05-04T05:22:09+00:00",
        "end": "2026-05-04T08:06:23+00:00"
    },
    "points_count": {
        "vessel_a": 33,
        "vessel_b": 33
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 22m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 164 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 14m, avg 22m) for 164 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 Ust-Luga Terminal Complex, a known STS activity area."
    }
}

{
    "radius_m": 8.199999999999999289457264239899814128875732421875,
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    "zone_id": "russia_ust_luga"
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{
    "zone_id": "russia_ust_luga",
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    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-05-04T05:02:08+00:00",
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}

{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
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    "distance_consistency_m": 1.6999999999999999555910790149937383830547332763671875,
    "duration_minutes": 202.19999999999998863131622783839702606201171875,
    "overlap_duration_s": 12134,
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    "speed_summary": {
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            "max_sog": 0
        },
        "vessel_b": {
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            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-05-04T04:44:09+00:00",
        "end": "2026-05-04T08:06:23+00:00"
    },
    "points_count": {
        "vessel_a": 38,
        "vessel_b": 38
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 23m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 202 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 14m, avg 23m) for 202 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 Ust-Luga Terminal Complex, a known STS activity area."
    }
}

{
    "radius_m": 8.199999999999999289457264239899814128875732421875,
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{
    "zone_id": "russia_ust_luga",
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    "dwell_minutes": 244.5,
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}

{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
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    },
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    "avg_distance_m": 22.60000000000000142108547152020037174224853515625,
    "distance_consistency_m": 1.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 279.5,
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    "speed_summary": {
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            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
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    },
    "time_window": {
        "start": "2026-05-04T03:26:55+00:00",
        "end": "2026-05-04T08:06:23+00:00"
    },
    "points_count": {
        "vessel_a": 52,
        "vessel_b": 52
    },
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 23m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 280 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 14m, avg 23m) for 280 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 Ust-Luga Terminal Complex, a known STS activity area."
    }
}

{
    "radius_m": 8,
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    "points": 62,
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{
    "zone_id": "russia_ust_luga",
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        "ts": "2026-05-04T03:02:55+00:00",
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{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
    },
    "vessel_b": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
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    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 315.5,
    "overlap_duration_s": 18928,
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    "speed_summary": {
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            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
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    },
    "time_window": {
        "start": "2026-05-04T02:50:55+00:00",
        "end": "2026-05-04T08:06:23+00:00"
    },
    "points_count": {
        "vessel_a": 62,
        "vessel_b": 62
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    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 22m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 316 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 14m, avg 22m) for 316 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 Ust-Luga Terminal Complex, a known STS activity area."
    }
}

{
    "radius_m": 7.5999999999999996447286321199499070644378662109375,
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{
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{
    "vessel_a": {
        "mmsi": 273353940,
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        "imo": 8724779,
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        "start": "2026-05-04T01:03:47+00:00",
        "end": "2026-05-04T04:04:48+00:00"
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    "points_count": {
        "vessel_a": 62,
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    "score": {
        "value": 95,
        "components": {
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                "score": 25,
                "max": 25,
                "detail": "Min distance 15m, avg 20m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 181 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 15m, avg 20m) for 181 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 Ust-Luga Terminal Complex, a known STS activity area."
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            "start_ts": "2026-05-04T01:03:47+00:00",
            "end_ts": "2026-05-04T04:04:48+00:00"
        },
        "searched_at": "2026-05-04T07:45:07.004083+00:00",
        "scene_id": "S1C_EW_GRDM_1SDH_20260504T044051_20260504T044151_007499_00F398_3E10_COG",
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            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/05\/event_482629_thumbnail_20260504074510.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/05\/event_482629_thumbnail_20260504074510.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

{
    "vessel_a": {
        "mmsi": 273331620,
        "imo": 8724779,
        "name": "VANINO",
        "flag": "RUSSIA"
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        "vessel_a": {
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        "vessel_b": {
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    "time_window": {
        "start": "2026-05-04T00:26:18+00:00",
        "end": "2026-05-04T06:56:53+00:00"
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    "points_count": {
        "vessel_a": 80,
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    "score": {
        "value": 95,
        "components": {
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                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 21m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 391 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
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                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
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        "summary": "High-confidence STS candidate. Two tankers (VANINO and KORSAKOV) maintained close proximity (min 14m, avg 21m) for 391 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 Ust-Luga Terminal Complex, a known STS activity area."
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{
    "radius_m": 7.29999999999999982236431605997495353221893310546875,
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{
    "zone_id": "russia_ust_luga",
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{
    "vessel_a": {
        "mmsi": 273353940,
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    },
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        "start": "2026-05-03T23:03:28+00:00",
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                "score": 25,
                "max": 25,
                "detail": "Min distance 15m, avg 21m"
            },
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                "score": 25,
                "max": 25,
                "detail": "Duration 301 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
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            "end_ts": "2026-05-04T04:04:48+00:00"
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        "searched_at": "2026-05-04T05:45:05.429791+00:00",
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            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/05\/event_482225_thumbnail_20260504054509.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

{
    "vessel_a": {
        "mmsi": 273353940,
        "imo": 8724793,
        "name": "KORSAKOV",
        "flag": "RUSSIA"
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    "time_window": {
        "start": "2026-05-03T22:00:58+00:00",
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        "vessel_b": 126
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        "value": 95,
        "components": {
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                "max": 25,
                "detail": "Min distance 15m, avg 21m"
            },
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                "max": 25,
                "detail": "Duration 364 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 15m, avg 21m) for 364 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 Ust-Luga Terminal Complex, a known STS activity area."
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        "notes": "No Sentinel-1 scenes covering AOI and time window"
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}

{
    "radius_m": 3,
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{
    "zone_id": "russia_ust_luga",
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{
    "vessel_a": {
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                "max": 25,
                "detail": "Min distance 15m, avg 21m"
            },
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                "max": 25,
                "detail": "Duration 375 minutes"
            },
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                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
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                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
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            "isolation": {
                "score": 5,
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                "detail": "Isolation data not available"
            },
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                "score": 5,
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{
    "radius_m": 7.4000000000000003552713678800500929355621337890625,
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{
    "zone_id": "russia_ust_luga",
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{
    "vessel_a": {
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        "mmsi": 273331620,
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        "vessel_a": {
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        "start": "2026-05-03T20:54:07+00:00",
        "end": "2026-05-04T03:29:17+00:00"
    },
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        "vessel_a": 139,
        "vessel_b": 139
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    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 15m, avg 21m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 395 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
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        "summary": "High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 15m, avg 21m) for 395 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 Ust-Luga Terminal Complex, a known STS activity area."
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}

{
    "radius_m": 7.4000000000000003552713678800500929355621337890625,
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{
    "zone_id": "russia_ust_luga",
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{
    "vessel_a": {
        "mmsi": 273353940,
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                "max": 25,
                "detail": "Min distance 15m, avg 21m"
            },
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                "score": 25,
                "max": 25,
                "detail": "Duration 396 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
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                "score": 15,
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                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ust-Luga Terminal Complex"
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        },
        "summary": "High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 15m, avg 21m) for 396 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 Ust-Luga Terminal Complex, a known STS activity area."
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}

{
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{
    "zone_id": "russia_ust_luga",
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{
    "vessel_a": {
        "mmsi": 273353940,
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        "start": "2026-05-03T18:52:57+00:00",
        "end": "2026-05-04T01:25:39+00:00"
    },
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                "max": 25,
                "detail": "Min distance 15m, avg 21m"
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                "max": 25,
                "detail": "Duration 393 minutes"
            },
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                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
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                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
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            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
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                "detail": "In monitored zone: Ust-Luga Terminal Complex"
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        },
        "summary": "High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 15m, avg 21m) for 393 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 Ust-Luga Terminal Complex, a known STS activity area."
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}

{
    "radius_m": 7.5,
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{
    "zone_id": "russia_ust_luga",
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{
    "radius_m": 7.5999999999999996447286321199499070644378662109375,
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{
    "zone_id": "russia_ust_luga",
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{
    "vessel_a": {
        "mmsi": 273353940,
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        "imo": 8724779,
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    "score": {
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        "components": {
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                "max": 25,
                "detail": "Min distance 15m, avg 21m"
            },
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                "max": 25,
                "detail": "Duration 396 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
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                "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: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 15m, avg 21m) for 396 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 Ust-Luga Terminal Complex, a known STS activity area."
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}

{
    "vessel_a": {
        "mmsi": 273353940,
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    },
    "time_window": {
        "start": "2026-05-03T16:07:37+00:00",
        "end": "2026-05-03T17:01:58+00:00"
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    "points_count": {
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    "zone_id": "russia_ust_luga",
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    "score": {
        "value": 80,
        "components": {
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                "max": 25,
                "detail": "Min distance 20m, avg 22m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 54 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: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 20m, avg 22m) for 54 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 Ust-Luga Terminal Complex, a known STS activity area."
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    "sar": {
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        "searched_at": "2026-05-03T22:45:04.976288+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
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}

{
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{
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{
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                "score": 25,
                "max": 25,
                "detail": "Min distance 20m, avg 22m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 114 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: Ust-Luga Terminal Complex"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KORSAKOV and VANINO) maintained close proximity (min 20m, avg 22m) for 114 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 Ust-Luga Terminal Complex, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 59.77194570000000339859980158507823944091796875,
            "lon": 28.44357339999999823021425982005894184112548828125
        },
        "time_window": {
            "start_ts": "2026-05-03T15:07:38+00:00",
            "end_ts": "2026-05-03T17:01:58+00:00"
        },
        "searched_at": "2026-05-03T21:45:04.623977+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "radius_m": 7.5,
    "duration_minutes": 394.8999999999999772626324556767940521240234375,
    "points": 79,
    "centroid": {
        "lat": 59.77188617974682216527071432210505008697509765625,
        "lon": 28.443710775949373470439240918494760990142822265625
    },
    "bbox": {
        "min_lat": 59.7718550000000021782398107461631298065185546875,
        "min_lon": 28.443598300000001444232111680321395397186279296875,
        "max_lat": 59.771923299999997425402398221194744110107421875,
        "max_lon": 28.44373170000000072832335717976093292236328125
    },
    "zone_id": "russia_ust_luga"
}

{
    "zone_id": "russia_ust_luga",
    "zone_name": "Ust-Luga Terminal Complex",
    "dwell_minutes": 394.8999999999999772626324556767940521240234375,
    "points_in_zone": 79,
    "first_point": {
        "ts": "2026-05-03T15:52:34+00:00",
        "lat": 59.77188000000000300815372611396014690399169921875,
        "lon": 28.443725000000000591171556152403354644775390625
    },
    "last_point": {
        "ts": "2026-05-03T22:27:31+00:00",
        "lat": 59.771891699999997626946424134075641632080078125,
        "lon": 28.443721700000001106900526792742311954498291015625
    }
}