MULE

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        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 28m, avg 107m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 55 minutes"
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                "max": 15,
                "detail": "Distance variance \u00b177m"
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            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
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    "speed_b_std": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 1.20999999999999996447286321199499070644378662109375,
            "max_sog": 1.399999999999999911182158029987476766109466552734375
        },
        "vessel_b": {
            "avg_sog": 1.229999999999999982236431605997495353221893310546875,
            "max_sog": 1.399999999999999911182158029987476766109466552734375
        }
    },
    "time_window": {
        "start": "2026-07-26T17:18:37+00:00",
        "end": "2026-07-26T19:32:48+00:00"
    },
    "points_count": {
        "vessel_a": 32,
        "vessel_b": 32
    },
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "score": {
        "value": 83,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 23m, avg 76m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 134 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both slow; very stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b162m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CHIBA and MULE) maintained close proximity (min 23m, avg 76m) for 134 minutes. Both vessels were slow-moving (avg speeds 1.2 and 1.2 knots). Moderate distance variation observed during the encounter. Event occurred in Southern \u00d6resund Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "dwell_minutes": 226.19999999999998863131622783839702606201171875,
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    "first_point": {
        "ts": "2026-07-26T17:03:02+00:00",
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        "ts": "2026-07-26T20:49:12+00:00",
        "lat": 35.7522000000000019781509763561189174652099609375,
        "lon": -4.96992830000000029855300454073585569858551025390625
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}

{
    "vessel_a": {
        "mmsi": 352002692,
        "imo": 9349631,
        "name": "CHIBA",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 314842000,
        "imo": 9298662,
        "name": "MULE",
        "flag": "BARBADOS"
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    "min_distance_m": 13.5,
    "avg_distance_m": 63,
    "distance_consistency_m": 54.39999999999999857891452847979962825775146484375,
    "duration_minutes": 207,
    "overlap_duration_s": 12421,
    "speed_a_avg": 1.0700000000000000621724893790087662637233734130859375,
    "speed_a_std": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_b_avg": 1.12000000000000010658141036401502788066864013671875,
    "speed_b_std": 0.200000000000000011102230246251565404236316680908203125,
    "speed_summary": {
        "vessel_a": {
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        "vessel_b": {
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    },
    "time_window": {
        "start": "2026-07-26T16:05:47+00:00",
        "end": "2026-07-26T19:32:48+00:00"
    },
    "points_count": {
        "vessel_a": 48,
        "vessel_b": 48
    },
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "score": {
        "value": 83,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 14m, avg 63m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 207 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both slow; very stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b154m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CHIBA and MULE) maintained close proximity (min 14m, avg 63m) for 207 minutes. Both vessels were slow-moving (avg speeds 1.1 and 1.1 knots). Moderate distance variation observed during the encounter. Event occurred in Southern \u00d6resund Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.7908833999999984598616720177233219146728515625,
            "lon": -4.95921170000000000044337866711430251598358154296875
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        "time_window": {
            "start_ts": "2026-07-26T16:05:47+00:00",
            "end_ts": "2026-07-26T19:32:48+00:00"
        },
        "searched_at": "2026-07-26T22:45:02.142297+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_003",
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{
    "radius_m": 1328.09999999999990905052982270717620849609375,
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{
    "vessel_a": {
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    },
    "vessel_b": {
        "mmsi": 314842000,
        "imo": 9298662,
        "name": "MULE",
        "flag": "BARBADOS"
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    "avg_distance_m": 70.7999999999999971578290569595992565155029296875,
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    "overlap_duration_s": 15320,
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    "speed_b_std": 0.179999999999999993338661852249060757458209991455078125,
    "speed_summary": {
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    },
    "time_window": {
        "start": "2026-07-26T15:17:28+00:00",
        "end": "2026-07-26T19:32:48+00:00"
    },
    "points_count": {
        "vessel_a": 62,
        "vessel_b": 62
    },
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "score": {
        "value": 83,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 9m, avg 71m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 255 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both slow; very stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b164m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CHIBA and MULE) maintained close proximity (min 9m, avg 71m) for 255 minutes. Both vessels were slow-moving (avg speeds 1.1 and 1.1 knots). Moderate distance variation observed during the encounter. Event occurred in Southern \u00d6resund Surveillance Zone, a known STS activity area."
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        "time_window": {
            "start_ts": "2026-07-26T15:17:28+00:00",
            "end_ts": "2026-07-26T19:32:48+00:00"
        },
        "searched_at": "2026-07-26T21:45:15.525880+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_003",
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{
    "radius_m": 2245.5,
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{
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "dwell_minutes": 374,
    "points_in_zone": 79,
    "first_point": {
        "ts": "2026-07-26T14:35:12+00:00",
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{
    "vessel_a": {
        "mmsi": 352002692,
        "imo": 9349631,
        "name": "CHIBA",
        "flag": "Panama"
    },
    "vessel_b": {
        "mmsi": 314842000,
        "imo": 9298662,
        "name": "MULE",
        "flag": "BARBADOS"
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    "min_distance_m": 9.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 78.900000000000005684341886080801486968994140625,
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    "duration_minutes": 296.5,
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    "speed_b_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_summary": {
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    "time_window": {
        "start": "2026-07-26T14:36:17+00:00",
        "end": "2026-07-26T19:32:48+00:00"
    },
    "points_count": {
        "vessel_a": 73,
        "vessel_b": 73
    },
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "score": {
        "value": 83,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 9m, avg 79m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 296 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both slow; very stable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b172m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (CHIBA and MULE) maintained close proximity (min 9m, avg 79m) for 296 minutes. Both vessels were slow-moving (avg speeds 1.1 and 1.1 knots). Moderate distance variation observed during the encounter. Event occurred in Southern \u00d6resund Surveillance Zone, a known STS activity area."
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}

{
    "zone_id": "discovered_003",
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{
    "zone_id": "discovered_003",
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    "zone_id": "discovered_003",
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{
    "zone_id": "discovered_003",
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{
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{
    "zone_id": "discovered_003",
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    "radius_m": 1154.200000000000045474735088646411895751953125,
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{
    "vessel_a": {
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        "name": "PRAGUE",
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        "vessel_a": {
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        "start": "2026-07-23T11:18:11+00:00",
        "end": "2026-07-23T13:49:41+00:00"
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    "points_count": {
        "vessel_a": 12,
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    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 23m, avg 49m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 152 minutes"
            },
            "speed_stability": {
                "score": 15,
                "max": 20,
                "detail": "both slow; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b118m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (PRAGUE and MULE) maintained close proximity (min 23m, avg 49m) for 152 minutes. Both vessels were slow-moving (avg speeds 1.0 and 1.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Southern \u00d6resund Surveillance Zone, a known STS activity area."
    }
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{
    "zone_id": "discovered_003",
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        "start": "2026-07-23T10:50:58+00:00",
        "end": "2026-07-23T11:38:28+00:00"
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    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
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    "score": {
        "value": 71,
        "components": {
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                "score": 25,
                "max": 25,
                "detail": "Min distance 24m, avg 86m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 48 minutes"
            },
            "speed_stability": {
                "score": 18,
                "max": 20,
                "detail": "both very slow; very stable speeds"
            },
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                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b170m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
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{
    "vessel_a": {
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        "flag": "BARBADOS"
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                "score": 25,
                "max": 25,
                "detail": "Min distance 19m, avg 69m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 67 minutes"
            },
            "speed_stability": {
                "score": 18,
                "max": 20,
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                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b154m"
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            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
            }
        },
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}

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        "value": 85,
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                "max": 25,
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            },
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                "score": 20,
                "max": 25,
                "detail": "Duration 97 minutes"
            },
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                "score": 12,
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                "score": 5,
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                "score": 5,
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            },
            "duration": {
                "score": 10,
                "max": 25,
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                "score": 5,
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                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
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            "max_sog": 1.100000000000000088817841970012523233890533447265625
        }
    },
    "time_window": {
        "start": "2026-07-12T13:43:14+00:00",
        "end": "2026-07-12T14:51:54+00:00"
    },
    "points_count": {
        "vessel_a": 18,
        "vessel_b": 18
    },
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 17m, avg 61m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 69 minutes"
            },
            "speed_stability": {
                "score": 18,
                "max": 20,
                "detail": "both very slow; very stable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b140m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (SUPER G and MULE) maintained close proximity (min 17m, avg 61m) for 69 minutes. Both vessels were slow-moving (avg speeds 0.9 and 1.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Southern \u00d6resund Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "dwell_minutes": 395.5,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-07-12T13:53:52+00:00",
        "lat": 35.74152000000000128920873976312577724456787109375,
        "lon": -4.76489000000000029189095585024915635585784912109375
    },
    "last_point": {
        "ts": "2026-07-12T20:29:24+00:00",
        "lat": 35.81440669999999926176315057091414928436279296875,
        "lon": -4.759541699999999764258973300457000732421875
    }
}

{
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "dwell_minutes": 86,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-07-08T14:01:05+00:00",
        "lat": 35.82451669999999666060830350033938884735107421875,
        "lon": -4.85853330000000038779717215220443904399871826171875
    },
    "last_point": {
        "ts": "2026-07-08T15:27:06+00:00",
        "lat": 35.73521670000000227673808694817125797271728515625,
        "lon": -4.821033299999999854890120332129299640655517578125
    }
}

{
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "dwell_minutes": 140.30000000000001136868377216160297393798828125,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-07-08T13:06:45+00:00",
        "lat": 35.88128329999999976962499204091727733612060546875,
        "lon": -4.89513330000000035369112083571963012218475341796875
    },
    "last_point": {
        "ts": "2026-07-08T15:27:06+00:00",
        "lat": 35.73521670000000227673808694817125797271728515625,
        "lon": -4.821033299999999854890120332129299640655517578125
    }
}

{
    "vessel_a": {
        "mmsi": 314842000,
        "imo": 9298662,
        "name": "MULE",
        "flag": "BARBADOS"
    },
    "vessel_b": {
        "mmsi": 636026162,
        "imo": 9315068,
        "name": "MIREA",
        "flag": "LIBERIA"
    },
    "min_distance_m": 15.4000000000000003552713678800500929355621337890625,
    "avg_distance_m": 38.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 15.199999999999999289457264239899814128875732421875,
    "duration_minutes": 40.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 2419,
    "speed_a_avg": 0.7399999999999999911182158029987476766109466552734375,
    "speed_a_std": 0.2600000000000000088817841970012523233890533447265625,
    "speed_b_avg": 0.70999999999999996447286321199499070644378662109375,
    "speed_b_std": 0.1499999999999999944488848768742172978818416595458984375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.7399999999999999911182158029987476766109466552734375,
            "max_sog": 1.399999999999999911182158029987476766109466552734375
        },
        "vessel_b": {
            "avg_sog": 0.70999999999999996447286321199499070644378662109375,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        }
    },
    "time_window": {
        "start": "2026-07-08T12:02:45+00:00",
        "end": "2026-07-08T12:43:04+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "score": {
        "value": 73,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 15m, avg 38m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 40 minutes"
            },
            "speed_stability": {
                "score": 18,
                "max": 20,
                "detail": "both very slow; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b115m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (MULE and MIREA) maintained close proximity (min 15m, avg 38m) for 40 minutes. Both vessels were slow-moving (avg speeds 0.7 and 0.7 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Southern \u00d6resund Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "dwell_minutes": 206.30000000000001136868377216160297393798828125,
    "points_in_zone": 50,
    "first_point": {
        "ts": "2026-07-08T12:00:45+00:00",
        "lat": 35.8738833000000028050635592080652713775634765625,
        "lon": -4.916100000000000136424205265939235687255859375
    },
    "last_point": {
        "ts": "2026-07-08T15:27:06+00:00",
        "lat": 35.73521670000000227673808694817125797271728515625,
        "lon": -4.821033299999999854890120332129299640655517578125
    }
}

{
    "radius_m": 1143.299999999999954525264911353588104248046875,
    "duration_minutes": 95.400000000000005684341886080801486968994140625,
    "points": 25,
    "centroid": {
        "lat": 35.87360533199998968711952329613268375396728515625,
        "lon": -4.9153746680000001134658305090852081775665283203125
    },
    "bbox": {
        "min_lat": 35.865133299999996552287484519183635711669921875,
        "min_lon": -4.919116700000000008685674401931464672088623046875,
        "max_lat": 35.8838166999999970130375004373490810394287109375,
        "max_lon": -4.910116699999999667625161237083375453948974609375
    },
    "zone_id": "discovered_003"
}

{
    "vessel_a": {
        "mmsi": 314842000,
        "imo": 9298662,
        "name": "MULE",
        "flag": "BARBADOS"
    },
    "vessel_b": {
        "mmsi": 636026162,
        "imo": 9315068,
        "name": "MIREA",
        "flag": "LIBERIA"
    },
    "min_distance_m": 15.4000000000000003552713678800500929355621337890625,
    "avg_distance_m": 53,
    "distance_consistency_m": 33.5,
    "duration_minutes": 97.5,
    "overlap_duration_s": 5848,
    "speed_a_avg": 0.7399999999999999911182158029987476766109466552734375,
    "speed_a_std": 0.2300000000000000099920072216264088638126850128173828125,
    "speed_b_avg": 0.7399999999999999911182158029987476766109466552734375,
    "speed_b_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.7399999999999999911182158029987476766109466552734375,
            "max_sog": 1.399999999999999911182158029987476766109466552734375
        },
        "vessel_b": {
            "avg_sog": 0.7399999999999999911182158029987476766109466552734375,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        }
    },
    "time_window": {
        "start": "2026-07-08T11:05:36+00:00",
        "end": "2026-07-08T12:43:04+00:00"
    },
    "points_count": {
        "vessel_a": 26,
        "vessel_b": 26
    },
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 15m, avg 53m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 98 minutes"
            },
            "speed_stability": {
                "score": 18,
                "max": 20,
                "detail": "both very slow; very stable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b134m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MULE and MIREA) maintained close proximity (min 15m, avg 53m) for 98 minutes. Both vessels were slow-moving (avg speeds 0.7 and 0.7 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Southern \u00d6resund Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.8723827000000028419890441000461578369140625,
            "lon": -4.91465420000000019484787117107771337032318115234375
        },
        "time_window": {
            "start_ts": "2026-07-08T11:05:36+00:00",
            "end_ts": "2026-07-08T12:43:04+00:00"
        },
        "searched_at": "2026-07-08T17:45:09.999102+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "dwell_minutes": 265.80000000000001136868377216160297393798828125,
    "points_in_zone": 66,
    "first_point": {
        "ts": "2026-07-08T11:01:16+00:00",
        "lat": 35.8628666999999978770574671216309070587158203125,
        "lon": -4.908500000000000085265128291212022304534912109375
    },
    "last_point": {
        "ts": "2026-07-08T15:27:06+00:00",
        "lat": 35.73521670000000227673808694817125797271728515625,
        "lon": -4.821033299999999854890120332129299640655517578125
    }
}

{
    "vessel_a": {
        "mmsi": 314842000,
        "imo": 9298662,
        "name": "MULE",
        "flag": "BARBADOS"
    },
    "vessel_b": {
        "mmsi": 636026162,
        "imo": 9315068,
        "name": "MIREA",
        "flag": "LIBERIA"
    },
    "min_distance_m": 15.4000000000000003552713678800500929355621337890625,
    "avg_distance_m": 50.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 28.39999999999999857891452847979962825775146484375,
    "duration_minutes": 145.5,
    "overlap_duration_s": 8730,
    "speed_a_avg": 0.7199999999999999733546474089962430298328399658203125,
    "speed_a_std": 0.2099999999999999922284388276239042170345783233642578125,
    "speed_b_avg": 0.7399999999999999911182158029987476766109466552734375,
    "speed_b_std": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.7199999999999999733546474089962430298328399658203125,
            "max_sog": 1.399999999999999911182158029987476766109466552734375
        },
        "vessel_b": {
            "avg_sog": 0.7399999999999999911182158029987476766109466552734375,
            "max_sog": 1.100000000000000088817841970012523233890533447265625
        }
    },
    "time_window": {
        "start": "2026-07-08T10:17:34+00:00",
        "end": "2026-07-08T12:43:04+00:00"
    },
    "points_count": {
        "vessel_a": 38,
        "vessel_b": 38
    },
    "zone_id": "discovered_003",
    "zone_name": "Southern \u00d6resund Surveillance Zone",
    "score": {
        "value": 93,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 15m, avg 50m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 146 minutes"
            },
            "speed_stability": {
                "score": 18,
                "max": 20,
                "detail": "both very slow; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b128m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Southern \u00d6resund Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MULE and MIREA) maintained close proximity (min 15m, avg 50m) for 146 minutes. Both vessels were slow-moving (avg speeds 0.7 and 0.7 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Southern \u00d6resund Surveillance Zone, a known STS activity area."
    }
}