DERIN

{
    "vessel_a": {
        "mmsi": 563068400,
        "imo": 9796494,
        "name": "HAFNIA DESPINA",
        "flag": "SINGAPORE"
    },
    "vessel_b": {
        "mmsi": 314001015,
        "imo": 9290646,
        "name": "DERIN",
        "flag": "Barbados"
    },
    "min_distance_m": 263.19999999999998863131622783839702606201171875,
    "avg_distance_m": 265.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 78,
    "overlap_duration_s": 4679,
    "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": "2026-10-08T04:21:32+00:00",
        "end": "2026-10-08T05:39:31+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 263m, avg 265m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 78 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: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 263m, avg 265m) for 78 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 Ceuta\/Gibraltar STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 35.89697879999999940991983748972415924072265625,
            "lon": -5.49874099999999987886667440761812031269073486328125
        },
        "time_window": {
            "start_ts": "2026-10-08T04:21:32+00:00",
            "end_ts": "2026-10-08T05:39:31+00:00"
        },
        "searched_at": "2026-10-08T06:15:01.465323+00:00",
        "scene_id": "S1D_IW_GRDH_1SDV_20261007T182556_20261007T182621_004913_00940B_DC99_COG",
        "scene_datetime": "2026-10-07T18:25:56.434201Z",
        "platform": "sentinel-1d",
        "bbox": {
            "min_lon": -8.473487999999999686906448914669454097747802734375,
            "min_lat": 35.45128600000000318459569825790822505950927734375,
            "max_lon": -5.2800560000000000826503310236148536205291748046875,
            "max_lat": 37.36214400000000068757799454033374786376953125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1473886_thumbnail_20261008061506.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1473886_thumbnail_20261008061506.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Oct 8, 2026 04:17 UTC 80.0% ▼

Zone: Ceuta/Gibraltar STS Zone
Duration: 6h 33m
Data Points: 24 AIS positions
Period: 2026-10-08T04:50:43+00:00 to 2026-10-08T11:23:43+00:00

{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 393,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-10-08T04:50:43+00:00",
        "lat": 35.89625170000000053960320656187832355499267578125,
        "lon": -5.499900000000000233058017329312860965728759765625
    },
    "last_point": {
        "ts": "2026-10-08T11:23:43+00:00",
        "lat": 35.8962599999999980582288117147982120513916015625,
        "lon": -5.4999432999999999793772076372988522052764892578125
    }
}

Oct 8, 2026 04:17 UTC 75.0% ▼

Duration: 6h 33m
Radius: 5 meters
Data Points: 24 AIS positions
Centroid: 35.8962, -5.4999
Zone: Ceuta/Gibraltar STS Zone

{
    "radius_m": 5,
    "duration_minutes": 393,
    "points": 24,
    "centroid": {
        "lat": 35.89623597500000329318936564959585666656494140625,
        "lon": -5.49991903333333187475773229380138218402862548828125
    },
    "bbox": {
        "min_lat": 35.89620169999999887977537582628428936004638671875,
        "min_lon": -5.499951700000000442969394498504698276519775390625,
        "max_lat": 35.8962767000000013695171219296753406524658203125,
        "max_lon": -5.49988000000000010203393685515038669109344482421875
    },
    "zone_id": "osint_ceuta"
}

Oct 8, 2026 03:08 UTC 80/100 ▼

Vessel A: IMO 9290646 (DERIN) Barbados

Vessel B: IMO 9796494 (HAFNIA DESPINA) SINGAPORE

Minimum Distance: 263 meters
Average Distance: 268 meters
Duration: 1h 45m
Period: 2026-10-08T03:08:43+00:00 to 2026-10-08T04:53:43+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (DERIN and HAFNIA DESPINA) maintained close proximity (min 263m, avg 268m) for 105 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 Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	15/25	Min distance 263m, avg 268m
Duration	20/25	Duration 105 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±2m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 314001015,
        "imo": 9290646,
        "name": "DERIN",
        "flag": "Barbados"
    },
    "vessel_b": {
        "mmsi": 563068400,
        "imo": 9796494,
        "name": "HAFNIA DESPINA",
        "flag": "SINGAPORE"
    },
    "min_distance_m": 263.19999999999998863131622783839702606201171875,
    "avg_distance_m": 267.5,
    "distance_consistency_m": 2.5,
    "duration_minutes": 105,
    "overlap_duration_s": 6300,
    "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": "2026-10-08T03:08:43+00:00",
        "end": "2026-10-08T04:53:43+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 263m, avg 268m"
            },
            "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 \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (DERIN and HAFNIA DESPINA) maintained close proximity (min 263m, avg 268m) for 105 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 Ceuta\/Gibraltar STS Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Ceuta/Gibraltar STS Zone

Oct 8, 2026 03:02 UTC 80.0% ▼

Zone: Ceuta/Gibraltar STS Zone
Duration: 6h 27m
Data Points: 21 AIS positions
Period: 2026-10-08T03:32:43+00:00 to 2026-10-08T09:59:43+00:00

Show Raw Evidence JSON

{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 387,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-10-08T03:32:43+00:00",
        "lat": 35.89624830000000343943611369468271732330322265625,
        "lon": -5.499926699999999613055479130707681179046630859375
    },
    "last_point": {
        "ts": "2026-10-08T09:59:43+00:00",
        "lat": 35.89623830000000026529960450716316699981689453125,
        "lon": -5.499951700000000442969394498504698276519775390625
    }
}

Methodology: 2026.01.18

Loiter Ceuta/Gibraltar STS Zone

Oct 8, 2026 03:02 UTC 75.0% ▼

Duration: 6h 27m
Radius: 5 meters
Data Points: 21 AIS positions
Centroid: 35.8962, -5.4999
Zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "radius_m": 4.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 387,
    "points": 21,
    "centroid": {
        "lat": 35.8962349238095299597262055613100528717041015625,
        "lon": -5.4999143761904765170811515417881309986114501953125
    },
    "bbox": {
        "min_lat": 35.89620169999999887977537582628428936004638671875,
        "min_lon": -5.499951700000000442969394498504698276519775390625,
        "max_lat": 35.8962666999999981953806127421557903289794921875,
        "max_lon": -5.49988000000000010203393685515038669109344482421875
    },
    "zone_id": "osint_ceuta"
}

Methodology: 2026.01.18

Zone Dwell Ceuta/Gibraltar STS Zone

Oct 8, 2026 02:26 UTC 80.0% ▼

Zone: Ceuta/Gibraltar STS Zone
Duration: 6h 24m
Data Points: 21 AIS positions
Period: 2026-10-08T02:26:43+00:00 to 2026-10-08T08:50:43+00:00

Show Raw Evidence JSON

{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 384,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-10-08T02:26:43+00:00",
        "lat": 35.89620500000000191676008398644626140594482421875,
        "lon": -5.499900000000000233058017329312860965728759765625
    },
    "last_point": {
        "ts": "2026-10-08T08:50:43+00:00",
        "lat": 35.896264999999999645297066308557987213134765625,
        "lon": -5.49990999999999985448084771633148193359375
    }
}

Methodology: 2026.01.18

Loiter Ceuta/Gibraltar STS Zone

Oct 8, 2026 02:26 UTC 75.0% ▼

Duration: 6h 24m
Radius: 4 meters
Data Points: 21 AIS positions
Centroid: 35.8962, -5.4999
Zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "radius_m": 3.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 384,
    "points": 21,
    "centroid": {
        "lat": 35.896233657142857964572613127529621124267578125,
        "lon": -5.49991016190476234015704903868027031421661376953125
    },
    "bbox": {
        "min_lat": 35.89620169999999887977537582628428936004638671875,
        "min_lon": -5.4999333000000003579543772502802312374114990234375,
        "max_lat": 35.8962666999999981953806127421557903289794921875,
        "max_lon": -5.49988000000000010203393685515038669109344482421875
    },
    "zone_id": "osint_ceuta"
}

Methodology: 2026.01.18

Sts🛰️? Ceuta/Gibraltar STS Zone

Oct 8, 2026 01:02 UTC 75/100 ▼

Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE

Vessel B: IMO 9290646 (DERIN) Barbados

Minimum Distance: 262 meters
Average Distance: 267 meters
Duration: 1h 24m
Period: 2026-10-08T01:03:30+00:00 to 2026-10-08T02:27:30+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 262m, avg 267m) for 84 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 Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	15/25	Min distance 262m, avg 267m
Duration	15/25	Duration 84 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ceuta/Gibraltar STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1D_IW_GRDH_1SDV_20261007T182556_20261007T182621_004913_00940B_DC99_COG • Acquired: 2026-10-07T18:25:56.434201Z • Platform: sentinel-1d

Click image to view full size

Searched: 2026-10-08T07:30:01.911378+00:00

{
    "vessel_a": {
        "mmsi": 563068400,
        "imo": 9796494,
        "name": "HAFNIA DESPINA",
        "flag": "SINGAPORE"
    },
    "vessel_b": {
        "mmsi": 314001015,
        "imo": 9290646,
        "name": "DERIN",
        "flag": "Barbados"
    },
    "min_distance_m": 262.3999999999999772626324556767940521240234375,
    "avg_distance_m": 267,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 84,
    "overlap_duration_s": 5040,
    "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": "2026-10-08T01:03:30+00:00",
        "end": "2026-10-08T02:27:30+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 262m, avg 267m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 84 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: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 262m, avg 267m) for 84 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 Ceuta\/Gibraltar STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 35.89697220000000044137777877040207386016845703125,
            "lon": -5.49874650000000020355628294055350124835968017578125
        },
        "time_window": {
            "start_ts": "2026-10-08T01:02:43+00:00",
            "end_ts": "2026-10-08T02:26:43+00:00"
        },
        "searched_at": "2026-10-08T07:30:01.911378+00:00",
        "scene_id": "S1D_IW_GRDH_1SDV_20261007T182556_20261007T182621_004913_00940B_DC99_COG",
        "scene_datetime": "2026-10-07T18:25:56.434201Z",
        "platform": "sentinel-1d",
        "bbox": {
            "min_lon": -8.473487999999999686906448914669454097747802734375,
            "min_lat": 35.45128600000000318459569825790822505950927734375,
            "max_lon": -5.2800560000000000826503310236148536205291748046875,
            "max_lat": 37.36214400000000068757799454033374786376953125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1474174_thumbnail_20261008073007.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1474174_thumbnail_20261008073007.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Oct 8, 2026 01:02 UTC 80.0% ▼

Zone: Ceuta/Gibraltar STS Zone
Duration: 6h 30m
Data Points: 21 AIS positions
Period: 2026-10-08T01:11:43+00:00 to 2026-10-08T07:41:43+00:00

{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 390,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-10-08T01:11:43+00:00",
        "lat": 35.8962549999999964711605571210384368896484375,
        "lon": -5.4998950000000004223466021358035504817962646484375
    },
    "last_point": {
        "ts": "2026-10-08T07:41:43+00:00",
        "lat": 35.8962549999999964711605571210384368896484375,
        "lon": -5.49988000000000010203393685515038669109344482421875
    }
}

Oct 8, 2026 01:02 UTC 75.0% ▼

Duration: 6h 30m
Radius: 4 meters
Data Points: 21 AIS positions
Centroid: 35.8962, -5.4999
Zone: Ceuta/Gibraltar STS Zone

{
    "radius_m": 4,
    "duration_minutes": 390,
    "points": 21,
    "centroid": {
        "lat": 35.8962321476190453495291876606643199920654296875,
        "lon": -5.49990944285714444816903778701089322566986083984375
    },
    "bbox": {
        "min_lat": 35.89620169999999887977537582628428936004638671875,
        "min_lon": -5.4999333000000003579543772502802312374114990234375,
        "max_lat": 35.8962666999999981953806127421557903289794921875,
        "max_lon": -5.49988000000000010203393685515038669109344482421875
    },
    "zone_id": "osint_ceuta"
}

Oct 8, 2026 00:11 UTC 85/100 ▼

Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE

Vessel B: IMO 9290646 (DERIN) Barbados

Minimum Distance: 262 meters
Average Distance: 268 meters
Duration: 2h 14m
Period: 2026-10-08T00:12:34+00:00 to 2026-10-08T02:27:30+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 262m, avg 268m) for 135 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 Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	15/25	Min distance 262m, avg 268m
Duration	25/25	Duration 135 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 563068400,
        "imo": 9796494,
        "name": "HAFNIA DESPINA",
        "flag": "SINGAPORE"
    },
    "vessel_b": {
        "mmsi": 314001015,
        "imo": 9290646,
        "name": "DERIN",
        "flag": "Barbados"
    },
    "min_distance_m": 262.3999999999999772626324556767940521240234375,
    "avg_distance_m": 267.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 134.900000000000005684341886080801486968994140625,
    "overlap_duration_s": 8096,
    "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": "2026-10-08T00:12:34+00:00",
        "end": "2026-10-08T02:27:30+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 262m, avg 268m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 135 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: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 262m, avg 268m) for 135 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 Ceuta\/Gibraltar STS Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Ceuta/Gibraltar STS Zone

Oct 8, 2026 00:11 UTC 80.0% ▼

Zone: Ceuta/Gibraltar STS Zone
Duration: 6h 33m
Data Points: 24 AIS positions
Period: 2026-10-08T00:20:43+00:00 to 2026-10-08T06:53:43+00:00

Show Raw Evidence JSON

{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 393,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-10-08T00:20:43+00:00",
        "lat": 35.896223300000002609522198326885700225830078125,
        "lon": -5.499906700000000370209818356670439243316650390625
    },
    "last_point": {
        "ts": "2026-10-08T06:53:43+00:00",
        "lat": 35.8962183000000010224539437331259250640869140625,
        "lon": -5.499926699999999613055479130707681179046630859375
    }
}

Methodology: 2026.01.18

Loiter Ceuta/Gibraltar STS Zone

Oct 8, 2026 00:11 UTC 75.0% ▼

Duration: 6h 33m
Radius: 5 meters
Data Points: 24 AIS positions
Centroid: 35.8962, -5.4999
Zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "radius_m": 4.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 393,
    "points": 24,
    "centroid": {
        "lat": 35.89622708333333633845541044138371944427490234375,
        "lon": -5.49991305416666786953783230273984372615814208984375
    },
    "bbox": {
        "min_lat": 35.89618999999999715555532020516693592071533203125,
        "min_lon": -5.49996330000000011040128811146132647991180419921875,
        "max_lat": 35.8962549999999964711605571210384368896484375,
        "max_lon": -5.49988000000000010203393685515038669109344482421875
    },
    "zone_id": "osint_ceuta"
}

Methodology: 2026.01.18

Zone Dwell Ceuta/Gibraltar STS Zone

Oct 7, 2026 23:11 UTC 80.0% ▼

Zone: Ceuta/Gibraltar STS Zone
Duration: 6h 21m
Data Points: 25 AIS positions
Period: 2026-10-07T23:41:43+00:00 to 2026-10-08T06:02:43+00:00

Show Raw Evidence JSON

{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 381,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-10-07T23:41:43+00:00",
        "lat": 35.8962149999999979854692355729639530181884765625,
        "lon": -5.49992329999999984835312716313637793064117431640625
    },
    "last_point": {
        "ts": "2026-10-08T06:02:43+00:00",
        "lat": 35.89620169999999887977537582628428936004638671875,
        "lon": -5.4999216999999998023440639371983706951141357421875
    }
}

Methodology: 2026.01.18

Loiter Ceuta/Gibraltar STS Zone

Oct 7, 2026 23:11 UTC 75.0% ▼

Duration: 6h 21m
Radius: 5 meters
Data Points: 25 AIS positions
Centroid: 35.8962, -5.4999
Zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "radius_m": 5.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 381,
    "points": 25,
    "centroid": {
        "lat": 35.89622886800000145512967719696462154388427734375,
        "lon": -5.4999112639999996332562659517861902713775634765625
    },
    "bbox": {
        "min_lat": 35.89618999999999715555532020516693592071533203125,
        "min_lon": -5.49996330000000011040128811146132647991180419921875,
        "max_lat": 35.8962549999999964711605571210384368896484375,
        "max_lon": -5.49988000000000010203393685515038669109344482421875
    },
    "zone_id": "osint_ceuta"
}

Methodology: 2026.01.18

Sts🛰️? Ceuta/Gibraltar STS Zone

Oct 7, 2026 23:06 UTC 85/100 ▼

Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE

Vessel B: IMO 9290646 (DERIN) Barbados

Minimum Distance: 262 meters
Average Distance: 267 meters
Duration: 3h 21m
Period: 2026-10-07T23:06:30+00:00 to 2026-10-08T02:27:30+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 262m, avg 267m) for 201 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 Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	15/25	Min distance 262m, avg 267m
Duration	25/25	Duration 201 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ceuta/Gibraltar STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1D_IW_GRDH_1SDV_20261007T182556_20261007T182621_004913_00940B_DC99_COG • Acquired: 2026-10-07T18:25:56.434201Z • Platform: sentinel-1d

Click image to view full size

Searched: 2026-10-08T05:00:08.715109+00:00

{
    "vessel_a": {
        "mmsi": 563068400,
        "imo": 9796494,
        "name": "HAFNIA DESPINA",
        "flag": "SINGAPORE"
    },
    "vessel_b": {
        "mmsi": 314001015,
        "imo": 9290646,
        "name": "DERIN",
        "flag": "Barbados"
    },
    "min_distance_m": 262.3999999999999772626324556767940521240234375,
    "avg_distance_m": 267.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 201,
    "overlap_duration_s": 12060,
    "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": "2026-10-07T23:06:30+00:00",
        "end": "2026-10-08T02:27:30+00:00"
    },
    "points_count": {
        "vessel_a": 23,
        "vessel_b": 23
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 262m, avg 267m"
            },
            "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 \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 262m, avg 267m) for 201 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 Ceuta\/Gibraltar STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 35.89697979999999688516254536807537078857421875,
            "lon": -5.49874859999999987536511980579234659671783447265625
        },
        "time_window": {
            "start_ts": "2026-10-07T23:06:30+00:00",
            "end_ts": "2026-10-08T02:27:30+00:00"
        },
        "searched_at": "2026-10-08T05:00:08.715109+00:00",
        "scene_id": "S1D_IW_GRDH_1SDV_20261007T182556_20261007T182621_004913_00940B_DC99_COG",
        "scene_datetime": "2026-10-07T18:25:56.434201Z",
        "platform": "sentinel-1d",
        "bbox": {
            "min_lon": -8.473487999999999686906448914669454097747802734375,
            "min_lat": 35.45128600000000318459569825790822505950927734375,
            "max_lon": -5.2800560000000000826503310236148536205291748046875,
            "max_lat": 37.36214400000000068757799454033374786376953125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1473600_thumbnail_20261008050013.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1473600_thumbnail_20261008050013.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Oct 7, 2026 22:56 UTC 85/100 ▼

Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE

Vessel B: IMO 9290646 (DERIN) Barbados

Minimum Distance: 259 meters
Average Distance: 267 meters
Duration: 3h 33m
Period: 2026-10-07T22:54:25+00:00 to 2026-10-08T02:27:30+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 259m, avg 267m) for 213 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 Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	15/25	Min distance 259m, avg 267m
Duration	25/25	Duration 213 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 563068400,
        "imo": 9796494,
        "name": "HAFNIA DESPINA",
        "flag": "SINGAPORE"
    },
    "vessel_b": {
        "mmsi": 314001015,
        "imo": 9290646,
        "name": "DERIN",
        "flag": "Barbados"
    },
    "min_distance_m": 259.30000000000001136868377216160297393798828125,
    "avg_distance_m": 266.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 213.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 12785,
    "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": "2026-10-07T22:54:25+00:00",
        "end": "2026-10-08T02:27:30+00:00"
    },
    "points_count": {
        "vessel_a": 24,
        "vessel_b": 24
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 259m, avg 267m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 213 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: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 259m, avg 267m) for 213 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 Ceuta\/Gibraltar STS Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Ceuta/Gibraltar STS Zone

Oct 7, 2026 22:11 UTC 80.0% ▼

Zone: Ceuta/Gibraltar STS Zone
Duration: 6h 27m
Data Points: 27 AIS positions
Period: 2026-10-07T22:56:43+00:00 to 2026-10-08T05:23:43+00:00

Show Raw Evidence JSON

{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 387,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-10-07T22:56:43+00:00",
        "lat": 35.89627829999999875099092605523765087127685546875,
        "lon": -5.4998532999999998338580553536303341388702392578125
    },
    "last_point": {
        "ts": "2026-10-08T05:23:43+00:00",
        "lat": 35.8962549999999964711605571210384368896484375,
        "lon": -5.4999149999999996651922629098407924175262451171875
    }
}

Methodology: 2026.01.18

Loiter Ceuta/Gibraltar STS Zone

Oct 7, 2026 22:11 UTC 75.0% ▼

Duration: 6h 27m
Radius: 7 meters
Data Points: 27 AIS positions
Centroid: 35.8962, -5.4999
Zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "radius_m": 7.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 387,
    "points": 27,
    "centroid": {
        "lat": 35.896232837037047147532575763761997222900390625,
        "lon": -5.4999101777777763544463596190325915813446044921875
    },
    "bbox": {
        "min_lat": 35.89618999999999715555532020516693592071533203125,
        "min_lon": -5.49996330000000011040128811146132647991180419921875,
        "max_lat": 35.89627829999999875099092605523765087127685546875,
        "max_lon": -5.4998532999999998338580553536303341388702392578125
    },
    "zone_id": "osint_ceuta"
}

Methodology: 2026.01.18

Sts Ceuta/Gibraltar STS Zone

Oct 7, 2026 21:39 UTC 85/100 ▼

Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE

Vessel B: IMO 9290646 (DERIN) Barbados

Minimum Distance: 259 meters
Average Distance: 267 meters
Duration: 4h 48m
Period: 2026-10-07T21:39:25+00:00 to 2026-10-08T02:27:30+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 259m, avg 267m) for 288 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 Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	15/25	Min distance 259m, avg 267m
Duration	25/25	Duration 288 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 563068400,
        "imo": 9796494,
        "name": "HAFNIA DESPINA",
        "flag": "SINGAPORE"
    },
    "vessel_b": {
        "mmsi": 314001015,
        "imo": 9290646,
        "name": "DERIN",
        "flag": "Barbados"
    },
    "min_distance_m": 259.30000000000001136868377216160297393798828125,
    "avg_distance_m": 267.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 288.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 17285,
    "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": "2026-10-07T21:39:25+00:00",
        "end": "2026-10-08T02:27:30+00:00"
    },
    "points_count": {
        "vessel_a": 25,
        "vessel_b": 25
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 259m, avg 267m"
            },
            "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 \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 259m, avg 267m) for 288 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 Ceuta\/Gibraltar STS Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Ceuta/Gibraltar STS Zone

Oct 7, 2026 21:11 UTC 80.0% ▼

Zone: Ceuta/Gibraltar STS Zone
Duration: 6h 33m
Data Points: 26 AIS positions
Period: 2026-10-07T21:53:43+00:00 to 2026-10-08T04:26:43+00:00

Show Raw Evidence JSON

{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 393,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-10-07T21:53:43+00:00",
        "lat": 35.89624330000000185236785910092294216156005859375,
        "lon": -5.499916699999999991632648743689060211181640625
    },
    "last_point": {
        "ts": "2026-10-08T04:26:43+00:00",
        "lat": 35.896223300000002609522198326885700225830078125,
        "lon": -5.49988000000000010203393685515038669109344482421875
    }
}

Methodology: 2026.01.18

Loiter Ceuta/Gibraltar STS Zone

Oct 7, 2026 21:11 UTC 75.0% ▼

Duration: 6h 33m
Radius: 7 meters
Data Points: 26 AIS positions
Centroid: 35.8962, -5.4999
Zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "radius_m": 7.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 393,
    "points": 26,
    "centroid": {
        "lat": 35.89623185384615311477318755351006984710693359375,
        "lon": -5.49991037692307660478263642289675772190093994140625
    },
    "bbox": {
        "min_lat": 35.89618999999999715555532020516693592071533203125,
        "min_lon": -5.49996330000000011040128811146132647991180419921875,
        "max_lat": 35.89627829999999875099092605523765087127685546875,
        "max_lon": -5.4998532999999998338580553536303341388702392578125
    },
    "zone_id": "osint_ceuta"
}

Methodology: 2026.01.18

Sts🛰️? Ceuta/Gibraltar STS Zone

Oct 7, 2026 20:12 UTC 75/100 ▼

Vessel A: IMO 9290646 (DERIN) Barbados

Vessel B: IMO 9796494 (HAFNIA DESPINA) SINGAPORE

Minimum Distance: 266 meters
Average Distance: 270 meters
Duration: 1h 15m
Period: 2026-10-07T20:29:43+00:00 to 2026-10-07T21:44:43+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (DERIN and HAFNIA DESPINA) maintained close proximity (min 266m, avg 270m) for 75 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 Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	15/25	Min distance 266m, avg 270m
Duration	15/25	Duration 75 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ceuta/Gibraltar STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1D_IW_GRDH_1SDV_20261007T182556_20261007T182621_004913_00940B_DC99_COG • Acquired: 2026-10-07T18:25:56.434201Z • Platform: sentinel-1d

Click image to view full size

Searched: 2026-10-08T02:45:01.628083+00:00

{
    "vessel_a": {
        "mmsi": 314001015,
        "imo": 9290646,
        "name": "DERIN",
        "flag": "Barbados"
    },
    "vessel_b": {
        "mmsi": 563068400,
        "imo": 9796494,
        "name": "HAFNIA DESPINA",
        "flag": "SINGAPORE"
    },
    "min_distance_m": 266.1000000000000227373675443232059478759765625,
    "avg_distance_m": 270.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 3,
    "duration_minutes": 75,
    "overlap_duration_s": 4500,
    "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": "2026-10-07T20:29:43+00:00",
        "end": "2026-10-07T21:44:43+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 266m, avg 270m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 75 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: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (DERIN and HAFNIA DESPINA) maintained close proximity (min 266m, avg 270m) for 75 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 Ceuta\/Gibraltar STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 35.89698179999999894107531872577965259552001953125,
            "lon": -5.49876349999999991524646247853524982929229736328125
        },
        "time_window": {
            "start_ts": "2026-10-07T20:12:30+00:00",
            "end_ts": "2026-10-07T21:44:43+00:00"
        },
        "searched_at": "2026-10-08T02:45:01.628083+00:00",
        "scene_id": "S1D_IW_GRDH_1SDV_20261007T182556_20261007T182621_004913_00940B_DC99_COG",
        "scene_datetime": "2026-10-07T18:25:56.434201Z",
        "platform": "sentinel-1d",
        "bbox": {
            "min_lon": -8.473487999999999686906448914669454097747802734375,
            "min_lat": 35.45128600000000318459569825790822505950927734375,
            "max_lon": -5.2800560000000000826503310236148536205291748046875,
            "max_lat": 37.36214400000000068757799454033374786376953125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1472915_thumbnail_20261008024506.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1472915_thumbnail_20261008024506.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Oct 7, 2026 20:02 UTC 80.0% ▼

Zone: Ceuta/Gibraltar STS Zone
Duration: 6h 27m
Data Points: 26 AIS positions
Period: 2026-10-07T20:41:43+00:00 to 2026-10-08T03:08:43+00:00

{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 387,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-10-07T20:41:43+00:00",
        "lat": 35.89627500000000281943357549607753753662109375,
        "lon": -5.49991830000000003764171196962706744670867919921875
    },
    "last_point": {
        "ts": "2026-10-08T03:08:43+00:00",
        "lat": 35.89624169999999736546669737435877323150634765625,
        "lon": -5.49991330000000022693029677611775696277618408203125
    }
}

Oct 7, 2026 20:02 UTC 75.0% ▼

Duration: 6h 27m
Radius: 8 meters
Data Points: 26 AIS positions
Centroid: 35.8962, -5.4999
Zone: Ceuta/Gibraltar STS Zone

{
    "radius_m": 7.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 387,
    "points": 26,
    "centroid": {
        "lat": 35.8962327538461494214061531238257884979248046875,
        "lon": -5.49991671923076896888460396439768373966217041015625
    },
    "bbox": {
        "min_lat": 35.89618999999999715555532020516693592071533203125,
        "min_lon": -5.499983300000000241425368585623800754547119140625,
        "max_lat": 35.89627829999999875099092605523765087127685546875,
        "max_lon": -5.4998532999999998338580553536303341388702392578125
    },
    "zone_id": "osint_ceuta"
}

Oct 7, 2026 19:21 UTC 85/100 ▼

Vessel A: IMO 9290646 (DERIN) Barbados

Vessel B: IMO 9796494 (HAFNIA DESPINA) SINGAPORE

Minimum Distance: 264 meters
Average Distance: 270 meters
Duration: 2h 21m
Period: 2026-10-07T19:23:43+00:00 to 2026-10-07T21:44:43+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (DERIN and HAFNIA DESPINA) maintained close proximity (min 264m, avg 270m) for 141 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 Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	15/25	Min distance 264m, avg 270m
Duration	25/25	Duration 141 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 314001015,
        "imo": 9290646,
        "name": "DERIN",
        "flag": "Barbados"
    },
    "vessel_b": {
        "mmsi": 563068400,
        "imo": 9796494,
        "name": "HAFNIA DESPINA",
        "flag": "SINGAPORE"
    },
    "min_distance_m": 264.30000000000001136868377216160297393798828125,
    "avg_distance_m": 269.5,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 141,
    "overlap_duration_s": 8460,
    "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": "2026-10-07T19:23:43+00:00",
        "end": "2026-10-07T21:44:43+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 264m, avg 270m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 141 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: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (DERIN and HAFNIA DESPINA) maintained close proximity (min 264m, avg 270m) for 141 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 Ceuta\/Gibraltar STS Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Ceuta/Gibraltar STS Zone

Oct 7, 2026 19:08 UTC 80.0% ▼

Zone: Ceuta/Gibraltar STS Zone
Duration: 6h 27m
Data Points: 26 AIS positions
Period: 2026-10-07T19:59:43+00:00 to 2026-10-08T02:26:43+00:00

Show Raw Evidence JSON

{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 387,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-10-07T19:59:43+00:00",
        "lat": 35.896223300000002609522198326885700225830078125,
        "lon": -5.4999432999999999793772076372988522052764892578125
    },
    "last_point": {
        "ts": "2026-10-08T02:26:43+00:00",
        "lat": 35.89620500000000191676008398644626140594482421875,
        "lon": -5.499900000000000233058017329312860965728759765625
    }
}

Methodology: 2026.01.18

Loiter Ceuta/Gibraltar STS Zone

Oct 7, 2026 19:08 UTC 75.0% ▼

Duration: 6h 27m
Radius: 8 meters
Data Points: 26 AIS positions
Centroid: 35.8962, -5.4999
Zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "radius_m": 8,
    "duration_minutes": 387,
    "points": 26,
    "centroid": {
        "lat": 35.8962315346153815198704251088201999664306640625,
        "lon": -5.499920826923077044057208695448935031890869140625
    },
    "bbox": {
        "min_lat": 35.89618999999999715555532020516693592071533203125,
        "min_lon": -5.499983300000000241425368585623800754547119140625,
        "max_lat": 35.89627829999999875099092605523765087127685546875,
        "max_lon": -5.4998532999999998338580553536303341388702392578125
    },
    "zone_id": "osint_ceuta"
}

Methodology: 2026.01.18

Zone Dwell Ceuta/Gibraltar STS Zone

Oct 7, 2026 18:11 UTC 80.0% ▼

Zone: Ceuta/Gibraltar STS Zone
Duration: 6h 24m
Data Points: 29 AIS positions
Period: 2026-10-07T18:38:43+00:00 to 2026-10-08T01:02:43+00:00

Show Raw Evidence JSON

{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 384,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-10-07T18:38:43+00:00",
        "lat": 35.89628669999999743822627351619303226470947265625,
        "lon": -5.499903299999999717329046688973903656005859375
    },
    "last_point": {
        "ts": "2026-10-08T01:02:43+00:00",
        "lat": 35.89622669999999970968929119408130645751953125,
        "lon": -5.49996330000000011040128811146132647991180419921875
    }
}

Methodology: 2026.01.18

Loiter Ceuta/Gibraltar STS Zone

Oct 7, 2026 18:11 UTC 75.0% ▼

Duration: 6h 24m
Radius: 8 meters
Data Points: 29 AIS positions
Centroid: 35.8962, -5.4999
Zone: Ceuta/Gibraltar STS Zone

Show Raw Evidence JSON

{
    "radius_m": 8.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 384,
    "points": 29,
    "centroid": {
        "lat": 35.89623402413793229470684309490025043487548828125,
        "lon": -5.49992395517241305924471816979348659515380859375
    },
    "bbox": {
        "min_lat": 35.89618999999999715555532020516693592071533203125,
        "min_lon": -5.499983300000000241425368585623800754547119140625,
        "max_lat": 35.89628669999999743822627351619303226470947265625,
        "max_lon": -5.4998532999999998338580553536303341388702392578125
    },
    "zone_id": "osint_ceuta"
}

Methodology: 2026.01.18

Sts🛰️? Ceuta/Gibraltar STS Zone

Oct 7, 2026 18:09 UTC 85/100 ▼

Vessel A: IMO 9290646 (DERIN) Barbados

Vessel B: IMO 9796494 (HAFNIA DESPINA) SINGAPORE

Minimum Distance: 264 meters
Average Distance: 269 meters
Duration: 3h 33m
Period: 2026-10-07T18:11:43+00:00 to 2026-10-07T21:44:43+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (DERIN and HAFNIA DESPINA) maintained close proximity (min 264m, avg 269m) for 213 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 Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	15/25	Min distance 264m, avg 269m
Duration	25/25	Duration 213 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Ceuta/Gibraltar STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1D_IW_GRDH_1SDV_20261007T182556_20261007T182621_004913_00940B_DC99_COG • Acquired: 2026-10-07T18:25:56.434201Z • Platform: sentinel-1d

Click image to view full size

Searched: 2026-10-08T00:30:01.625682+00:00

{
    "vessel_a": {
        "mmsi": 314001015,
        "imo": 9290646,
        "name": "DERIN",
        "flag": "Barbados"
    },
    "vessel_b": {
        "mmsi": 563068400,
        "imo": 9796494,
        "name": "HAFNIA DESPINA",
        "flag": "SINGAPORE"
    },
    "min_distance_m": 264.30000000000001136868377216160297393798828125,
    "avg_distance_m": 269.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 2.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 213,
    "overlap_duration_s": 12780,
    "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": "2026-10-07T18:11:43+00:00",
        "end": "2026-10-07T21:44:43+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 264m, avg 269m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 213 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: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (DERIN and HAFNIA DESPINA) maintained close proximity (min 264m, avg 269m) for 213 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 Ceuta\/Gibraltar STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 35.89698409999999739738996140658855438232421875,
            "lon": -5.498756300000000152294887811876833438873291015625
        },
        "time_window": {
            "start_ts": "2026-10-07T18:09:27+00:00",
            "end_ts": "2026-10-07T21:12:29+00:00"
        },
        "searched_at": "2026-10-08T00:30:01.625682+00:00",
        "scene_id": "S1D_IW_GRDH_1SDV_20261007T182556_20261007T182621_004913_00940B_DC99_COG",
        "scene_datetime": "2026-10-07T18:25:56.434201Z",
        "platform": "sentinel-1d",
        "bbox": {
            "min_lon": -8.473487999999999686906448914669454097747802734375,
            "min_lat": 35.45128600000000318459569825790822505950927734375,
            "max_lon": -5.2800560000000000826503310236148536205291748046875,
            "max_lat": 37.36214400000000068757799454033374786376953125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1472377_thumbnail_20261008003005.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/10\/event_1472377_thumbnail_20261008003005.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}

Oct 7, 2026 17:35 UTC 80.0% ▼

Zone: Ceuta/Gibraltar STS Zone
Duration: 6h 33m
Data Points: 29 AIS positions
Period: 2026-10-07T17:53:43+00:00 to 2026-10-08T00:26:43+00:00

{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 393,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-10-07T17:53:43+00:00",
        "lat": 35.89624669999999895253495196811854839324951171875,
        "lon": -5.49991830000000003764171196962706744670867919921875
    },
    "last_point": {
        "ts": "2026-10-08T00:26:43+00:00",
        "lat": 35.89618999999999715555532020516693592071533203125,
        "lon": -5.49994169999999993336814441136084496974945068359375
    }
}

Oct 7, 2026 17:35 UTC 75.0% ▼

Duration: 6h 33m
Radius: 8 meters
Data Points: 29 AIS positions
Centroid: 35.8962, -5.4999
Zone: Ceuta/Gibraltar STS Zone

{
    "radius_m": 8,
    "duration_minutes": 393,
    "points": 29,
    "centroid": {
        "lat": 35.89623436896551567087954026646912097930908203125,
        "lon": -5.499923210344828561346730566583573818206787109375
    },
    "bbox": {
        "min_lat": 35.89618999999999715555532020516693592071533203125,
        "min_lon": -5.499983300000000241425368585623800754547119140625,
        "max_lat": 35.89628669999999743822627351619303226470947265625,
        "max_lon": -5.4998532999999998338580553536303341388702392578125
    },
    "zone_id": "osint_ceuta"
}