ILITHA

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "min_distance_m": 485.8999999999999772626324556767940521240234375,
    "avg_distance_m": 489.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 72.2000000000000028421709430404007434844970703125,
    "overlap_duration_s": 4333,
    "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": "2026-11-01T10:58:22+00:00",
        "end": "2026-11-01T12:10:35+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 486m, avg 489m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 72 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Cape Town Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ILITHA and CHASE OCEAN) maintained close proximity (min 486m, avg 489m) for 72 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 Cape Town Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "min_distance_m": 485.80000000000001136868377216160297393798828125,
    "avg_distance_m": 489,
    "distance_consistency_m": 2.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 183,
    "overlap_duration_s": 10980,
    "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": "2026-11-01T08:58:09+00:00",
        "end": "2026-11-01T12:01:09+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 486m, avg 489m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 183 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: Cape Town Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CHASE OCEAN and ILITHA) maintained close proximity (min 486m, avg 489m) for 183 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 Cape Town Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "dwell_minutes": 380,
    "points_in_zone": 41,
    "first_point": {
        "ts": "2026-11-01T08:16:34+00:00",
        "lat": -33.91486669999999747915353509597480297088623046875,
        "lon": 18.44105499999999864257915760390460491180419921875
    },
    "last_point": {
        "ts": "2026-11-01T14:36:34+00:00",
        "lat": -33.914843300000001136140781454741954803466796875,
        "lon": 18.441068300000001300986696151085197925567626953125
    }
}

{
    "radius_m": 9.300000000000000710542735760100185871124267578125,
    "duration_minutes": 380,
    "points": 41,
    "centroid": {
        "lat": -33.91484772682927228970584110356867313385009765625,
        "lon": 18.441040404878048519776712055318057537078857421875
    },
    "bbox": {
        "min_lat": -33.91492000000000217596607399173080921173095703125,
        "min_lon": 18.440983299999999189822119660675525665283203125,
        "max_lat": -33.9148100000000027876012609340250492095947265625,
        "max_lon": 18.44110669999999885249053477309644222259521484375
    },
    "zone_id": "discovered_047"
}

{
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "dwell_minutes": 384.1000000000000227373675443232059478759765625,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-11-01T07:58:25+00:00",
        "lat": -33.9149000000000029331204132176935672760009765625,
        "lon": 18.441096699999999231067704386077821254730224609375
    },
    "last_point": {
        "ts": "2026-11-01T14:22:34+00:00",
        "lat": -33.9148799999999965848473948426544666290283203125,
        "lon": 18.441030000000001365378921036608517169952392578125
    }
}

{
    "radius_m": 9.199999999999999289457264239899814128875732421875,
    "duration_minutes": 384.1000000000000227373675443232059478759765625,
    "points": 39,
    "centroid": {
        "lat": -33.91484897692307498573427437804639339447021484375,
        "lon": 18.44104128205128034778681467287242412567138671875
    },
    "bbox": {
        "min_lat": -33.91492000000000217596607399173080921173095703125,
        "min_lon": 18.440983299999999189822119660675525665283203125,
        "max_lat": -33.9148100000000027876012609340250492095947265625,
        "max_lon": 18.44110669999999885249053477309644222259521484375
    },
    "zone_id": "discovered_047"
}

{
    "vessel_a": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "min_distance_m": 485.80000000000001136868377216160297393798828125,
    "avg_distance_m": 490.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 4,
    "duration_minutes": 90,
    "overlap_duration_s": 5400,
    "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": "2026-11-01T07:13:09+00:00",
        "end": "2026-11-01T08:43:09+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 486m, avg 490m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 90 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Cape Town Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CHASE OCEAN and ILITHA) maintained close proximity (min 486m, avg 490m) for 90 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 Cape Town Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": -33.91308860000000180434653884731233119964599609375,
            "lon": 18.4394273999999995794496499001979827880859375
        },
        "time_window": {
            "start_ts": "2026-11-01T07:13:09+00:00",
            "end_ts": "2026-11-01T08:43:09+00:00"
        },
        "searched_at": "2026-11-01T09:00:07.683666+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "min_distance_m": 478.3999999999999772626324556767940521240234375,
    "avg_distance_m": 483.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 4.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 48,
    "overlap_duration_s": 2880,
    "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": "2026-11-01T06:01:09+00:00",
        "end": "2026-11-01T06:49:09+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 478m, avg 484m"
            },
            "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 \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CHASE OCEAN and ILITHA) maintained close proximity (min 478m, avg 484m) 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "dwell_minutes": 393,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-11-01T06:43:22+00:00",
        "lat": -33.9147999999999996134647517465054988861083984375,
        "lon": 18.441030000000001365378921036608517169952392578125
    },
    "last_point": {
        "ts": "2026-11-01T13:16:22+00:00",
        "lat": -33.91483670000000216759872273541986942291259765625,
        "lon": 18.441050000000000608224581810645759105682373046875
    }
}

{
    "radius_m": 9.800000000000000710542735760100185871124267578125,
    "duration_minutes": 393,
    "points": 38,
    "centroid": {
        "lat": -33.91484298684211040608715848065912723541259765625,
        "lon": 18.44103960263158370480596204288303852081298828125
    },
    "bbox": {
        "min_lat": -33.91492000000000217596607399173080921173095703125,
        "min_lon": 18.440983299999999189822119660675525665283203125,
        "max_lat": -33.9147999999999996134647517465054988861083984375,
        "max_lon": 18.44110669999999885249053477309644222259521484375
    },
    "zone_id": "discovered_047"
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "min_distance_m": 478.3999999999999772626324556767940521240234375,
    "avg_distance_m": 487.5,
    "distance_consistency_m": 4.5,
    "duration_minutes": 96.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 5765,
    "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": "2026-11-01T06:10:21+00:00",
        "end": "2026-11-01T07:46:26+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 478m, avg 488m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 96 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Cape Town Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ILITHA and CHASE OCEAN) maintained close proximity (min 478m, avg 488m) for 96 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 Cape Town Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": -33.91306800000000265526978182606399059295654296875,
            "lon": 18.439391799999999221881807898171246051788330078125
        },
        "time_window": {
            "start_ts": "2026-11-01T06:01:09+00:00",
            "end_ts": "2026-11-01T07:46:26+00:00"
        },
        "searched_at": "2026-11-01T08:45:03.949935+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-11-01T05:40:23+00:00",
        "lat": -33.91484669999999823630787432193756103515625,
        "lon": 18.44101500000000015688783605583012104034423828125
    },
    "last_point": {
        "ts": "2026-11-01T12:16:27+00:00",
        "lat": -33.91486669999999747915353509597480297088623046875,
        "lon": 18.441068300000001300986696151085197925567626953125
    }
}

{
    "radius_m": 12.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 34,
    "centroid": {
        "lat": -33.91484098823529080846128636039793491363525390625,
        "lon": 18.44103729999999785604813951067626476287841796875
    },
    "bbox": {
        "min_lat": -33.91492000000000217596607399173080921173095703125,
        "min_lon": 18.440954999999998875637174933217465877532958984375,
        "max_lat": -33.914749999999997953636921010911464691162109375,
        "max_lon": 18.44110669999999885249053477309644222259521484375
    },
    "zone_id": "discovered_047"
}

{
    "vessel_a": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "min_distance_m": 491.19999999999998863131622783839702606201171875,
    "avg_distance_m": 492.5,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 54,
    "overlap_duration_s": 3240,
    "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": "2026-11-01T04:37:09+00:00",
        "end": "2026-11-01T05:31:09+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 491m, avg 492m"
            },
            "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: Cape Town Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CHASE OCEAN and ILITHA) maintained close proximity (min 491m, avg 492m) 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 Cape Town Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": -33.913093099999997548366081900894641876220703125,
            "lon": 18.43940690000000159898263518698513507843017578125
        },
        "time_window": {
            "start_ts": "2026-11-01T04:37:09+00:00",
            "end_ts": "2026-11-01T05:31:09+00:00"
        },
        "searched_at": "2026-11-01T11:00:01.504000+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "dwell_minutes": 384,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-11-01T04:55:31+00:00",
        "lat": -33.91485329999999720484993304125964641571044921875,
        "lon": 18.441038299999998884004526189528405666351318359375
    },
    "last_point": {
        "ts": "2026-11-01T11:19:33+00:00",
        "lat": -33.9148100000000027876012609340250492095947265625,
        "lon": 18.441018299999999641158865415491163730621337890625
    }
}

{
    "radius_m": 12.300000000000000710542735760100185871124267578125,
    "duration_minutes": 384,
    "points": 36,
    "centroid": {
        "lat": -33.914837697222225187942967750132083892822265625,
        "lon": 18.441033605555549712562424247153103351593017578125
    },
    "bbox": {
        "min_lat": -33.91492000000000217596607399173080921173095703125,
        "min_lon": 18.440954999999998875637174933217465877532958984375,
        "max_lat": -33.91473669999999884794306126423180103302001953125,
        "max_lon": 18.44110669999999885249053477309644222259521484375
    },
    "zone_id": "discovered_047"
}

{
    "vessel_a": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "min_distance_m": 489.6000000000000227373675443232059478759765625,
    "avg_distance_m": 491.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 147,
    "overlap_duration_s": 8820,
    "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": "2026-11-01T03:04:09+00:00",
        "end": "2026-11-01T05:31:09+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 490m, avg 492m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 147 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: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CHASE OCEAN and ILITHA) maintained close proximity (min 490m, avg 492m) for 147 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": -33.913101199999999835199560038745403289794921875,
            "lon": 18.439407700000000289719537249766290187835693359375
        },
        "time_window": {
            "start_ts": "2026-11-01T03:04:09+00:00",
            "end_ts": "2026-11-01T05:31:09+00:00"
        },
        "searched_at": "2026-11-01T06:15:04.442575+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "min_distance_m": 489.6000000000000227373675443232059478759765625,
    "avg_distance_m": 491.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 147,
    "overlap_duration_s": 8820,
    "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": "2026-11-01T03:04:09+00:00",
        "end": "2026-11-01T05:31:09+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 490m, avg 492m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 147 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: Cape Town Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CHASE OCEAN and ILITHA) maintained close proximity (min 490m, avg 492m) for 147 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 Cape Town Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": -33.913101199999999835199560038745403289794921875,
            "lon": 18.439407700000000289719537249766290187835693359375
        },
        "time_window": {
            "start_ts": "2026-11-01T03:04:09+00:00",
            "end_ts": "2026-11-01T05:31:09+00:00"
        },
        "searched_at": "2026-11-01T08:45:01.554998+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-11-01T03:43:28+00:00",
        "lat": -33.91484669999999823630787432193756103515625,
        "lon": 18.44106670000000036679921322502195835113525390625
    },
    "last_point": {
        "ts": "2026-11-01T10:19:31+00:00",
        "lat": -33.91484669999999823630787432193756103515625,
        "lon": 18.441018299999999641158865415491163730621337890625
    }
}

{
    "radius_m": 12.800000000000000710542735760100185871124267578125,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 38,
    "centroid": {
        "lat": -33.91484185263158224188373424112796783447265625,
        "lon": 18.441034121052634731086072861216962337493896484375
    },
    "bbox": {
        "min_lat": -33.91492000000000217596607399173080921173095703125,
        "min_lon": 18.440954999999998875637174933217465877532958984375,
        "max_lat": -33.91473669999999884794306126423180103302001953125,
        "max_lon": 18.44110669999999885249053477309644222259521484375
    },
    "zone_id": "discovered_047"
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "min_distance_m": 486.19999999999998863131622783839702606201171875,
    "avg_distance_m": 491.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 99,
    "overlap_duration_s": 5937,
    "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": "2026-11-01T02:55:28+00:00",
        "end": "2026-11-01T04:34:25+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 486m, avg 491m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 99 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ILITHA and CHASE OCEAN) maintained close proximity (min 486m, avg 491m) for 99 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "min_distance_m": 486.19999999999998863131622783839702606201171875,
    "avg_distance_m": 491.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 99,
    "overlap_duration_s": 5937,
    "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": "2026-11-01T02:55:28+00:00",
        "end": "2026-11-01T04:34:25+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 486m, avg 491m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 99 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Cape Town Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ILITHA and CHASE OCEAN) maintained close proximity (min 486m, avg 491m) for 99 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 Cape Town Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": -33.91309729999999689198375563137233257293701171875,
            "lon": 18.43940539999999828069121576845645904541015625
        },
        "time_window": {
            "start_ts": "2026-11-01T02:55:28+00:00",
            "end_ts": "2026-11-01T04:34:25+00:00"
        },
        "searched_at": "2026-11-01T08:45:08.217394+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "dwell_minutes": 386.8999999999999772626324556767940521240234375,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-11-01T02:52:26+00:00",
        "lat": -33.91484669999999823630787432193756103515625,
        "lon": 18.441018299999999641158865415491163730621337890625
    },
    "last_point": {
        "ts": "2026-11-01T09:19:20+00:00",
        "lat": -33.91481999999999885631041252054274082183837890625,
        "lon": 18.441023300000001228227120009250938892364501953125
    }
}

{
    "radius_m": 13,
    "duration_minutes": 386.8999999999999772626324556767940521240234375,
    "points": 39,
    "centroid": {
        "lat": -33.9148440282051382155259489081799983978271484375,
        "lon": 18.441034271794872978489365777932107448577880859375
    },
    "bbox": {
        "min_lat": -33.91492000000000217596607399173080921173095703125,
        "min_lon": 18.440954999999998875637174933217465877532958984375,
        "max_lat": -33.91473669999999884794306126423180103302001953125,
        "max_lon": 18.44110669999999885249053477309644222259521484375
    },
    "zone_id": "discovered_047"
}

{
    "vessel_a": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "min_distance_m": 485.8999999999999772626324556767940521240234375,
    "avg_distance_m": 492.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 6.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 30,
    "overlap_duration_s": 1800,
    "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": "2026-11-01T01:52:09+00:00",
        "end": "2026-11-01T02:22:09+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 486m, avg 492m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 30 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Cape Town Surveillance Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (CHASE OCEAN and ILITHA) maintained close proximity (min 486m, avg 492m) for 30 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 Cape Town Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": -33.913088299999998298517311923205852508544921875,
            "lon": 18.439411299999999727106114733032882213592529296875
        },
        "time_window": {
            "start_ts": "2026-11-01T01:52:09+00:00",
            "end_ts": "2026-11-01T02:22:09+00:00"
        },
        "searched_at": "2026-11-01T08:30:13.932156+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_047",
    "zone_name": "Cape Town Surveillance Zone",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 39,
    "first_point": {
        "ts": "2026-11-01T01:58:23+00:00",
        "lat": -33.91485999999999734200173406861722469329833984375,
        "lon": 18.440978300000001155467543867416679859161376953125
    },
    "last_point": {
        "ts": "2026-11-01T08:28:29+00:00",
        "lat": -33.9148799999999965848473948426544666290283203125,
        "lon": 18.440983299999999189822119660675525665283203125
    }
}

{
    "radius_m": 12.5,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 39,
    "centroid": {
        "lat": -33.914841723076932566982577554881572723388671875,
        "lon": 18.441027861538461962709334329701960086822509765625
    },
    "bbox": {
        "min_lat": -33.9149000000000029331204132176935672760009765625,
        "min_lon": 18.440954999999998875637174933217465877532958984375,
        "max_lat": -33.91473669999999884794306126423180103302001953125,
        "max_lon": 18.441096699999999231067704386077821254730224609375
    },
    "zone_id": "discovered_047"
}

{
    "vessel_a": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "min_distance_m": 485.8999999999999772626324556767940521240234375,
    "avg_distance_m": 492.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 3.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 62,
    "overlap_duration_s": 3723,
    "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": "2026-11-01T01:20:06+00:00",
        "end": "2026-11-01T02:22:09+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 486m, avg 492m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 62 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (CHASE OCEAN and ILITHA) maintained close proximity (min 486m, avg 492m) for 62 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": -33.91309559999999834190020919777452945709228515625,
            "lon": 18.439411299999999727106114733032882213592529296875
        },
        "time_window": {
            "start_ts": "2026-11-01T01:20:06+00:00",
            "end_ts": "2026-11-01T02:22:09+00:00"
        },
        "searched_at": "2026-11-01T07:45:01.344581+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 375,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-11-01T01:43:25+00:00",
        "lat": -33.91486669999999747915353509597480297088623046875,
        "lon": 18.441023300000001228227120009250938892364501953125
    },
    "last_point": {
        "ts": "2026-11-01T07:58:25+00:00",
        "lat": -33.9149000000000029331204132176935672760009765625,
        "lon": 18.441096699999999231067704386077821254730224609375
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}

{
    "radius_m": 12.5,
    "duration_minutes": 375,
    "points": 38,
    "centroid": {
        "lat": -33.9148411526315811670428956858813762664794921875,
        "lon": 18.441029426315790118451332091353833675384521484375
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        "min_lat": -33.9149000000000029331204132176935672760009765625,
        "min_lon": 18.440954999999998875637174933217465877532958984375,
        "max_lat": -33.91473669999999884794306126423180103302001953125,
        "max_lon": 18.441096699999999231067704386077821254730224609375
    },
    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636024344,
        "imo": 9290660,
        "name": "CHASE OCEAN",
        "flag": "LIBERIA"
    },
    "min_distance_m": 485.8999999999999772626324556767940521240234375,
    "avg_distance_m": 492,
    "distance_consistency_m": 4.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 87.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 5227,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_std": 0.11000000000000000055511151231257827021181583404541015625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.040000000000000000832667268468867405317723751068115234375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        }
    },
    "time_window": {
        "start": "2026-11-01T00:55:28+00:00",
        "end": "2026-11-01T02:22:35+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 486m, avg 492m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 87 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ILITHA and CHASE OCEAN) maintained close proximity (min 486m, avg 492m) for 87 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-11-01T00:55:28+00:00",
        "lat": -33.91487670000000065329004428349435329437255859375,
        "lon": 18.44110330000000175232344190590083599090576171875
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    "last_point": {
        "ts": "2026-11-01T07:25:26+00:00",
        "lat": -33.91483000000000203044692170806229114532470703125,
        "lon": 18.44105830000000167956386576406657695770263671875
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}

{
    "radius_m": 12.5,
    "duration_minutes": 390,
    "points": 36,
    "centroid": {
        "lat": -33.9148415861111089952828478999435901641845703125,
        "lon": 18.44102883888889010677303303964436054229736328125
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        "min_lat": -33.91487670000000065329004428349435329437255859375,
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        "max_lon": 18.44110330000000175232344190590083599090576171875
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    "zone_id": "discovered_048"
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 40,
    "first_point": {
        "ts": "2026-10-31T23:52:23+00:00",
        "lat": -33.91483000000000203044692170806229114532470703125,
        "lon": 18.441011700000000672616806696169078350067138671875
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    "last_point": {
        "ts": "2026-11-01T06:19:23+00:00",
        "lat": -33.914749999999997953636921010911464691162109375,
        "lon": 18.440954999999998875637174933217465877532958984375
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}

{
    "radius_m": 13.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 387,
    "points": 40,
    "centroid": {
        "lat": -33.9148450974999917661989456973969936370849609375,
        "lon": 18.441029832500003493578333291225135326385498046875
    },
    "bbox": {
        "min_lat": -33.9148832999999996218321030028164386749267578125,
        "min_lon": 18.440909999999998802877598791383206844329833984375,
        "max_lat": -33.91473669999999884794306126423180103302001953125,
        "max_lon": 18.441179999999999239435055642388761043548583984375
    },
    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 387,
    "avg_distance_m": 397.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 12.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 75,
    "overlap_duration_s": 4502,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_std": 0.309999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.14000000000000001332267629550187848508358001708984375,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-10-31T22:13:21+00:00",
        "end": "2026-10-31T23:28:23+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 67,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 387m, avg 398m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 75 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b112m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ILITHA and FEW BPS) maintained close proximity (min 387m, avg 398m) for 75 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 384,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-10-31T22:34:21+00:00",
        "lat": -33.91485329999999720484993304125964641571044921875,
        "lon": 18.4410333000000008496499503962695598602294921875
    },
    "last_point": {
        "ts": "2026-11-01T04:58:21+00:00",
        "lat": -33.91473669999999884794306126423180103302001953125,
        "lon": 18.440978300000001155467543867416679859161376953125
    }
}

{
    "radius_m": 13.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 384,
    "points": 34,
    "centroid": {
        "lat": -33.91484942058823293109526275657117366790771484375,
        "lon": 18.441030438235291200044230208732187747955322265625
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    "bbox": {
        "min_lat": -33.914946700000001555963535793125629425048828125,
        "min_lon": 18.440909999999998802877598791383206844329833984375,
        "max_lat": -33.91473669999999884794306126423180103302001953125,
        "max_lon": 18.441179999999999239435055642388761043548583984375
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    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 387,
    "avg_distance_m": 395.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 10.800000000000000710542735760100185871124267578125,
    "duration_minutes": 105,
    "overlap_duration_s": 6299,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_b_std": 0.2600000000000000088817841970012523233890533447265625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.1000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-10-31T21:43:24+00:00",
        "end": "2026-10-31T23:28:23+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 387m, avg 395m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 105 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b111m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ILITHA and FEW BPS) maintained close proximity (min 387m, avg 395m) for 105 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-10-31T21:43:24+00:00",
        "lat": -33.91485329999999720484993304125964641571044921875,
        "lon": 18.441068300000001300986696151085197925567626953125
    },
    "last_point": {
        "ts": "2026-11-01T04:19:33+00:00",
        "lat": -33.914843300000001136140781454741954803466796875,
        "lon": 18.440983299999999189822119660675525665283203125
    }
}

{
    "radius_m": 13.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 33,
    "centroid": {
        "lat": -33.91485394848483991836474160663783550262451171875,
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    "bbox": {
        "min_lat": -33.914946700000001555963535793125629425048828125,
        "min_lon": 18.440909999999998802877598791383206844329833984375,
        "max_lat": -33.9148167000000029247530619613826274871826171875,
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    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 386.6000000000000227373675443232059478759765625,
    "avg_distance_m": 392.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 7.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 201,
    "overlap_duration_s": 12059,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.179999999999999993338661852249060757458209991455078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
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    },
    "time_window": {
        "start": "2026-10-31T20:07:24+00:00",
        "end": "2026-10-31T23:28:23+00:00"
    },
    "points_count": {
        "vessel_a": 15,
        "vessel_b": 15
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 387m, avg 393m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 201 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: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ILITHA and FEW BPS) maintained close proximity (min 387m, avg 393m) for 201 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Mid-Atlantic Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": -33.9133822000000009211362339556217193603515625,
            "lon": 18.439851600000000786394593887962400913238525390625
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        "time_window": {
            "start_ts": "2026-10-31T20:07:24+00:00",
            "end_ts": "2026-10-31T23:28:23+00:00"
        },
        "searched_at": "2026-11-01T02:30:04.422819+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_048",
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    "first_point": {
        "ts": "2026-10-31T20:40:28+00:00",
        "lat": -33.914843300000001136140781454741954803466796875,
        "lon": 18.441030000000001365378921036608517169952392578125
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    "last_point": {
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{
    "radius_m": 13.4000000000000003552713678800500929355621337890625,
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{
    "vessel_a": {
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        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
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    "avg_distance_m": 392.3999999999999772626324556767940521240234375,
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    "overlap_duration_s": 16025,
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    "speed_summary": {
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            "max_sog": 0
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        "vessel_b": {
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    },
    "time_window": {
        "start": "2026-10-31T19:01:18+00:00",
        "end": "2026-10-31T23:28:23+00:00"
    },
    "points_count": {
        "vessel_a": 19,
        "vessel_b": 19
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 385m, avg 392m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 267 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ILITHA and FEW BPS) maintained close proximity (min 385m, avg 392m) for 267 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-10-31T19:52:28+00:00",
        "lat": -33.91484669999999823630787432193756103515625,
        "lon": 18.44105499999999864257915760390460491180419921875
    },
    "last_point": {
        "ts": "2026-11-01T02:22:35+00:00",
        "lat": -33.91481999999999885631041252054274082183837890625,
        "lon": 18.441005000000000535465005668811500072479248046875
    }
}

{
    "radius_m": 13,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 31,
    "centroid": {
        "lat": -33.9148505451612862771071377210319042205810546875,
        "lon": 18.44104032580644769723221543245017528533935546875
    },
    "bbox": {
        "min_lat": -33.914946700000001555963535793125629425048828125,
        "min_lon": 18.440909999999998802877598791383206844329833984375,
        "max_lat": -33.91478330000000340760379913263022899627685546875,
        "max_lon": 18.441179999999999239435055642388761043548583984375
    },
    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 385.19999999999998863131622783839702606201171875,
    "avg_distance_m": 393.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 7.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 326.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 19617,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.6999999999999999555910790149937383830547332763671875
        }
    },
    "time_window": {
        "start": "2026-10-31T18:01:26+00:00",
        "end": "2026-10-31T23:28:23+00:00"
    },
    "points_count": {
        "vessel_a": 22,
        "vessel_b": 22
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 385m, avg 393m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 327 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ILITHA and FEW BPS) maintained close proximity (min 385m, avg 393m) for 327 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": -33.91337539999999961537469062022864818572998046875,
            "lon": 18.439855800000000130012267618440091609954833984375
        },
        "time_window": {
            "start_ts": "2026-10-31T18:01:26+00:00",
            "end_ts": "2026-10-31T23:28:23+00:00"
        },
        "searched_at": "2026-11-01T00:15:04.668581+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 392.8999999999999772626324556767940521240234375,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-10-31T18:01:26+00:00",
        "lat": -33.91484669999999823630787432193756103515625,
        "lon": 18.44105830000000167956386576406657695770263671875
    },
    "last_point": {
        "ts": "2026-11-01T00:34:21+00:00",
        "lat": -33.9148167000000029247530619613826274871826171875,
        "lon": 18.440909999999998802877598791383206844329833984375
    }
}

{
    "radius_m": 13,
    "duration_minutes": 392.8999999999999772626324556767940521240234375,
    "points": 29,
    "centroid": {
        "lat": -33.91484759310345253879859228618443012237548828125,
        "lon": 18.441040120689653036833988153375685214996337890625
    },
    "bbox": {
        "min_lat": -33.914946700000001555963535793125629425048828125,
        "min_lon": 18.440909999999998802877598791383206844329833984375,
        "max_lat": -33.91478330000000340760379913263022899627685546875,
        "max_lon": 18.441179999999999239435055642388761043548583984375
    },
    "zone_id": "discovered_048"
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 392.69999999999998863131622783839702606201171875,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-10-31T17:34:35+00:00",
        "lat": -33.91485329999999720484993304125964641571044921875,
        "lon": 18.4410333000000008496499503962695598602294921875
    },
    "last_point": {
        "ts": "2026-11-01T00:07:18+00:00",
        "lat": -33.91487670000000065329004428349435329437255859375,
        "lon": 18.441088300000000543832356925122439861297607421875
    }
}

{
    "radius_m": 11.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 392.69999999999998863131622783839702606201171875,
    "points": 26,
    "centroid": {
        "lat": -33.91484846538461539466879912652075290679931640625,
        "lon": 18.44103885000000531135810888372361660003662109375
    },
    "bbox": {
        "min_lat": -33.914946700000001555963535793125629425048828125,
        "min_lon": 18.440996699999999464125721715390682220458984375,
        "max_lat": -33.91478330000000340760379913263022899627685546875,
        "max_lon": 18.441088300000000543832356925122439861297607421875
    },
    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 383.69999999999998863131622783839702606201171875,
    "avg_distance_m": 391.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 4.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 369,
    "overlap_duration_s": 22139,
    "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": "2026-10-31T16:25:22+00:00",
        "end": "2026-10-31T22:34:21+00:00"
    },
    "points_count": {
        "vessel_a": 24,
        "vessel_b": 24
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 384m, avg 391m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 369 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ILITHA and FEW BPS) maintained close proximity (min 384m, avg 391m) for 369 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-10-31T16:55:19+00:00",
        "lat": -33.9148799999999965848473948426544666290283203125,
        "lon": 18.440981699999998255634636734612286090850830078125
    },
    "last_point": {
        "ts": "2026-10-31T23:28:23+00:00",
        "lat": -33.914843300000001136140781454741954803466796875,
        "lon": 18.441030000000001365378921036608517169952392578125
    }
}

{
    "radius_m": 11.199999999999999289457264239899814128875732421875,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 25,
    "centroid": {
        "lat": -33.91484986799999745699096820317208766937255859375,
        "lon": 18.441036340000000137706592795439064502716064453125
    },
    "bbox": {
        "min_lat": -33.914946700000001555963535793125629425048828125,
        "min_lon": 18.440981699999998255634636734612286090850830078125,
        "max_lat": -33.91478330000000340760379913263022899627685546875,
        "max_lon": 18.441088300000000543832356925122439861297607421875
    },
    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "min_distance_m": 381.8999999999999772626324556767940521240234375,
    "avg_distance_m": 389.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 5.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 126,
    "overlap_duration_s": 7562,
    "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": "2026-10-31T15:10:37+00:00",
        "end": "2026-10-31T17:16:39+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 382m, avg 390m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 126 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FEW BPS and ILITHA) maintained close proximity (min 382m, avg 390m) for 126 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": -33.91339260000000166428435477428138256072998046875,
            "lon": 18.439879300000001194348442368209362030029296875
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        "time_window": {
            "start_ts": "2026-10-31T15:10:37+00:00",
            "end_ts": "2026-10-31T17:16:39+00:00"
        },
        "searched_at": "2026-10-31T21:30:04.456654+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 380.8999999999999772626324556767940521240234375,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-10-31T15:52:28+00:00",
        "lat": -33.91485999999999734200173406861722469329833984375,
        "lon": 18.4410333000000008496499503962695598602294921875
    },
    "last_point": {
        "ts": "2026-10-31T22:13:21+00:00",
        "lat": -33.91485999999999734200173406861722469329833984375,
        "lon": 18.441088300000000543832356925122439861297607421875
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}

{
    "radius_m": 8.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 380.8999999999999772626324556767940521240234375,
    "points": 26,
    "centroid": {
        "lat": -33.91484884999999138699422474019229412078857421875,
        "lon": 18.441039876923081664017445291392505168914794921875
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    "bbox": {
        "min_lat": -33.9148832999999996218321030028164386749267578125,
        "min_lon": 18.4409500000000008412825991399586200714111328125,
        "max_lat": -33.91478330000000340760379913263022899627685546875,
        "max_lon": 18.441134999999999166675479500554502010345458984375
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    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "min_distance_m": 376.6000000000000227373675443232059478759765625,
    "avg_distance_m": 389.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 7.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 180,
    "overlap_duration_s": 10799,
    "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": "2026-10-31T14:16:40+00:00",
        "end": "2026-10-31T17:16:39+00:00"
    },
    "points_count": {
        "vessel_a": 19,
        "vessel_b": 19
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 377m, avg 390m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 180 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FEW BPS and ILITHA) maintained close proximity (min 377m, avg 390m) for 180 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_048",
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    "first_point": {
        "ts": "2026-10-31T14:49:34+00:00",
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        "lon": 18.441076699999999988222043612040579319000244140625
    },
    "last_point": {
        "ts": "2026-10-31T21:07:18+00:00",
        "lat": -33.9148167000000029247530619613826274871826171875,
        "lon": 18.44102170000000029403963708318769931793212890625
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}

{
    "radius_m": 11.800000000000000710542735760100185871124267578125,
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    "points": 26,
    "centroid": {
        "lat": -33.9148425692307711187822860665619373321533203125,
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    "bbox": {
        "min_lat": -33.9148832999999996218321030028164386749267578125,
        "min_lon": 18.4409500000000008412825991399586200714111328125,
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        "max_lon": 18.441134999999999166675479500554502010345458984375
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    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 376.6000000000000227373675443232059478759765625,
    "avg_distance_m": 386.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 7.5999999999999996447286321199499070644378662109375,
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    "overlap_duration_s": 7190,
    "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": "2026-10-31T13:10:34+00:00",
        "end": "2026-10-31T15:10:24+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 377m, avg 387m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 120 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: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ILITHA and FEW BPS) maintained close proximity (min 377m, avg 387m) for 120 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-10-31T13:31:22+00:00",
        "lat": -33.91484669999999823630787432193756103515625,
        "lon": 18.44106000000000022964741219766438007354736328125
    },
    "last_point": {
        "ts": "2026-10-31T20:07:24+00:00",
        "lat": -33.9148100000000027876012609340250492095947265625,
        "lon": 18.441076699999999988222043612040579319000244140625
    }
}

{
    "radius_m": 11.800000000000000710542735760100185871124267578125,
    "duration_minutes": 396,
    "points": 24,
    "centroid": {
        "lat": -33.9148404208333289489019080065190792083740234375,
        "lon": 18.44103458750000612553776591084897518157958984375
    },
    "bbox": {
        "min_lat": -33.9148799999999965848473948426544666290283203125,
        "min_lon": 18.4409500000000008412825991399586200714111328125,
        "max_lat": -33.91475669999999809078872203826904296875,
        "max_lon": 18.441134999999999166675479500554502010345458984375
    },
    "zone_id": "discovered_048"
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-10-31T12:52:27+00:00",
        "lat": -33.91483000000000203044692170806229114532470703125,
        "lon": 18.441023300000001228227120009250938892364501953125
    },
    "last_point": {
        "ts": "2026-10-31T19:28:35+00:00",
        "lat": -33.9148799999999965848473948426544666290283203125,
        "lon": 18.441006699999999085548552102409303188323974609375
    }
}

{
    "radius_m": 11.199999999999999289457264239899814128875732421875,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 26,
    "centroid": {
        "lat": -33.91483808076923622820686432532966136932373046875,
        "lon": 18.44102807692308232390132616274058818817138671875
    },
    "bbox": {
        "min_lat": -33.9148799999999965848473948426544666290283203125,
        "min_lon": 18.4409500000000008412825991399586200714111328125,
        "max_lat": -33.91475669999999809078872203826904296875,
        "max_lon": 18.441134999999999166675479500554502010345458984375
    },
    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "min_distance_m": 379,
    "avg_distance_m": 390.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 9,
    "duration_minutes": 147,
    "overlap_duration_s": 8819,
    "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": "2026-10-31T11:07:39+00:00",
        "end": "2026-10-31T13:34:38+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 379m, avg 390m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 147 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b19m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FEW BPS and ILITHA) maintained close proximity (min 379m, avg 390m) for 147 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-10-31T11:40:19+00:00",
        "lat": -33.914843300000001136140781454741954803466796875,
        "lon": 18.441030000000001365378921036608517169952392578125
    },
    "last_point": {
        "ts": "2026-10-31T18:10:24+00:00",
        "lat": -33.91481999999999885631041252054274082183837890625,
        "lon": 18.441030000000001365378921036608517169952392578125
    }
}

{
    "radius_m": 11.199999999999999289457264239899814128875732421875,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 32,
    "centroid": {
        "lat": -33.91483791875000264326445176266133785247802734375,
        "lon": 18.44102911249999721121639595367014408111572265625
    },
    "bbox": {
        "min_lat": -33.914933300000001281659933738410472869873046875,
        "min_lon": 18.4409500000000008412825991399586200714111328125,
        "max_lat": -33.91475669999999809078872203826904296875,
        "max_lon": 18.441134999999999166675479500554502010345458984375
    },
    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "vessel_b": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "min_distance_m": 379,
    "avg_distance_m": 390.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 8.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 186,
    "overlap_duration_s": 11162,
    "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": "2026-10-31T10:28:36+00:00",
        "end": "2026-10-31T13:34:38+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 379m, avg 390m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 186 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: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (FEW BPS and ILITHA) maintained close proximity (min 379m, avg 390m) for 186 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 390.19999999999998863131622783839702606201171875,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-10-31T10:37:22+00:00",
        "lat": -33.91487670000000065329004428349435329437255859375,
        "lon": 18.4410467000000011239535524509847164154052734375
    },
    "last_point": {
        "ts": "2026-10-31T17:07:33+00:00",
        "lat": -33.9148799999999965848473948426544666290283203125,
        "lon": 18.44102170000000029403963708318769931793212890625
    }
}

{
    "radius_m": 11.300000000000000710542735760100185871124267578125,
    "duration_minutes": 390.19999999999998863131622783839702606201171875,
    "points": 33,
    "centroid": {
        "lat": -33.91483950000000646696207695640623569488525390625,
        "lon": 18.44102848787878912162341293878853321075439453125
    },
    "bbox": {
        "min_lat": -33.914933300000001281659933738410472869873046875,
        "min_lon": 18.4409500000000008412825991399586200714111328125,
        "max_lat": -33.91475669999999809078872203826904296875,
        "max_lon": 18.441134999999999166675479500554502010345458984375
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    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 379.80000000000001136868377216160297393798828125,
    "avg_distance_m": 392.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 7.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 186,
    "overlap_duration_s": 11160,
    "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": "2026-10-31T09:04:32+00:00",
        "end": "2026-10-31T12:10:32+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 380m, avg 393m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 186 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: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ILITHA and FEW BPS) maintained close proximity (min 380m, avg 393m) for 186 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": -33.91337469999999854053385206498205661773681640625,
            "lon": 18.4398651999999998452040017582476139068603515625
        },
        "time_window": {
            "start_ts": "2026-10-31T09:04:32+00:00",
            "end_ts": "2026-10-31T12:10:32+00:00"
        },
        "searched_at": "2026-10-31T15:30:02.211517+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 392.80000000000001136868377216160297393798828125,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-10-31T09:40:29+00:00",
        "lat": -33.91481999999999885631041252054274082183837890625,
        "lon": 18.441018299999999641158865415491163730621337890625
    },
    "last_point": {
        "ts": "2026-10-31T16:13:18+00:00",
        "lat": -33.91484669999999823630787432193756103515625,
        "lon": 18.4410400000000009868017514236271381378173828125
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}

{
    "radius_m": 11.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 392.80000000000001136868377216160297393798828125,
    "points": 31,
    "centroid": {
        "lat": -33.91483355483871520164029789157211780548095703125,
        "lon": 18.44102865483871056540010613389313220977783203125
    },
    "bbox": {
        "min_lat": -33.914933300000001281659933738410472869873046875,
        "min_lon": 18.4409567000000009784344001673161983489990234375,
        "max_lat": -33.91475669999999809078872203826904296875,
        "max_lon": 18.441076699999999988222043612040579319000244140625
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    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 379.80000000000001136868377216160297393798828125,
    "avg_distance_m": 391.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 7.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 240,
    "overlap_duration_s": 14400,
    "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": "2026-10-31T08:10:32+00:00",
        "end": "2026-10-31T12:10:32+00:00"
    },
    "points_count": {
        "vessel_a": 18,
        "vessel_b": 18
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 380m, avg 392m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 240 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b17m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ILITHA and FEW BPS) maintained close proximity (min 380m, avg 392m) for 240 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 Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 389.8999999999999772626324556767940521240234375,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-10-31T08:40:27+00:00",
        "lat": -33.91481999999999885631041252054274082183837890625,
        "lon": 18.440981699999998255634636734612286090850830078125
    },
    "last_point": {
        "ts": "2026-10-31T15:10:24+00:00",
        "lat": -33.91478330000000340760379913263022899627685546875,
        "lon": 18.440986699999999842702891328372061252593994140625
    }
}

{
    "radius_m": 11.199999999999999289457264239899814128875732421875,
    "duration_minutes": 389.8999999999999772626324556767940521240234375,
    "points": 29,
    "centroid": {
        "lat": -33.91483643793103652797071845270693302154541015625,
        "lon": 18.441032127586208133607215131632983684539794921875
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        "min_lat": -33.914933300000001281659933738410472869873046875,
        "min_lon": 18.44096329999999994697645888663828372955322265625,
        "max_lat": -33.91478330000000340760379913263022899627685546875,
        "max_lon": 18.44109830000000016525518731214106082916259765625
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    "zone_id": "discovered_048"
}

{
    "vessel_a": {
        "mmsi": 601041620,
        "imo": 9514494,
        "name": "ILITHA",
        "flag": "SOUTH AFRICA"
    },
    "vessel_b": {
        "mmsi": 636025561,
        "imo": 9405538,
        "name": "FEW BPS",
        "flag": "LIBERIA"
    },
    "min_distance_m": 355.19999999999998863131622783839702606201171875,
    "avg_distance_m": 389.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 11.199999999999999289457264239899814128875732421875,
    "duration_minutes": 288.19999999999998863131622783839702606201171875,
    "overlap_duration_s": 17290,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.05000000000000000277555756156289135105907917022705078125,
            "max_sog": 0.8000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-10-31T07:22:22+00:00",
        "end": "2026-10-31T12:10:32+00:00"
    },
    "points_count": {
        "vessel_a": 22,
        "vessel_b": 22
    },
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 355m, avg 389m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 288 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b111m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Mid-Atlantic Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ILITHA and FEW BPS) maintained close proximity (min 355m, avg 389m) for 288 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Mid-Atlantic Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_048",
    "zone_name": "Mid-Atlantic Surveillance Zone",
    "dwell_minutes": 386.8999999999999772626324556767940521240234375,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-10-31T07:04:27+00:00",
        "lat": -33.91481999999999885631041252054274082183837890625,
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        "components": {
            "distance_tightness": {
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                "detail": "Min distance 489m, avg 494m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 36 minutes"
            },
            "speed_stability": {
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                "detail": "Isolation data not available"
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                "score": 5,
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            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1599995_thumbnail_20261031001509.png",
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        "notes": "Preview available for manual review"
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}