HAFNIA DESPINA

IMO 9796494

Vessel information

Vessel Name HAFNIA DESPINA
IMO Number 9796494
MMSI 563068400
Vessel Type Tanker
Flag 🇸🇬 SINGAPORE
Call Sign 9V3093
Length 250 m
Beam 44 m

Detected Events (100)

Sts Ceuta/Gibraltar STS Zone
Oct 8, 2026 10:14 UTC 67/100 ▼
Vessel A: IMO 9290646 (DERIN) Barbados
Vessel B: IMO 9796494 (HAFNIA DESPINA) SINGAPORE
  • Minimum Distance: 247 meters
  • Average Distance: 266 meters
  • Duration: 48 minutes
  • Period: 2026-10-08T10:14:43+00:00 to 2026-10-08T11:02:43+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.2 knots
  • Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 67/100

Moderate-confidence STS candidate. Two tankers (DERIN and HAFNIA DESPINA) maintained close proximity (min 247m, avg 266m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 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
FactorScoreDetail
Distance Tightness15/25Min distance 247m, avg 266m
Duration10/25Duration 48 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency15/15Distance variance ±11m
Isolation5/10Isolation data not available
Context5/5In 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": 247.099999999999994315658113919198513031005859375,
    "avg_distance_m": 266,
    "distance_consistency_m": 10.699999999999999289457264239899814128875732421875,
    "duration_minutes": 48,
    "overlap_duration_s": 2880,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.1600000000000000033306690738754696212708950042724609375,
    "speed_b_std": 0.35999999999999998667732370449812151491641998291015625,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.1600000000000000033306690738754696212708950042724609375,
            "max_sog": 0.8000000000000000444089209850062616169452667236328125
        }
    },
    "time_window": {
        "start": "2026-10-08T10:14:43+00:00",
        "end": "2026-10-08T11:02:43+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 67,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 247m, avg 266m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 48 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b111m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (DERIN and HAFNIA DESPINA) maintained close proximity (min 247m, avg 266m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.2 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 07:06 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 16m
  • Data Points: 54 AIS positions
  • Period: 2026-10-08T07:06:27+00:00 to 2026-10-08T13:22:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 376.19999999999998863131622783839702606201171875,
    "points_in_zone": 54,
    "first_point": {
        "ts": "2026-10-08T07:06:27+00:00",
        "lat": 35.89775829999999956498868414200842380523681640625,
        "lon": -5.497550000000000380850906367413699626922607421875
    },
    "last_point": {
        "ts": "2026-10-08T13:22:42+00:00",
        "lat": 36.05655329999999736401150585152208805084228515625,
        "lon": -5.3357583000000001760554368956945836544036865234375
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 8, 2026 07:06 UTC 75.0% ▼
  • Duration: 4h 3m
  • Radius: 1,047 meters
  • Data Points: 18 AIS positions
  • Centroid: 35.8983, -5.4966
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 1046.59999999999990905052982270717620849609375,
    "duration_minutes": 243.599999999999994315658113919198513031005859375,
    "points": 18,
    "centroid": {
        "lat": 35.89834657777777948695074883289635181427001953125,
        "lon": -5.49661287222222227910606306977570056915283203125
    },
    "bbox": {
        "min_lat": 35.89673830000000265272319666109979152679443359375,
        "min_lon": -5.49760169999999970258386383648030459880828857421875,
        "max_lat": 35.90691170000000198569978238083422183990478515625,
        "max_lon": -5.49157999999999990592414178536273539066314697265625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 8, 2026 06:18 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 29m
  • Data Points: 54 AIS positions
  • Period: 2026-10-08T06:48:31+00:00 to 2026-10-08T13:17:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 389.3999999999999772626324556767940521240234375,
    "points_in_zone": 54,
    "first_point": {
        "ts": "2026-10-08T06:48:31+00:00",
        "lat": 35.897733299999998735074768774211406707763671875,
        "lon": -5.49759499999999956543206280912272632122039794921875
    },
    "last_point": {
        "ts": "2026-10-08T13:17:52+00:00",
        "lat": 36.055104999999997517079464159905910491943359375,
        "lon": -5.3336600000000000676436684443615376949310302734375
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 8, 2026 06:18 UTC 75.0% ▼
  • Duration: 4h 51m
  • Radius: 1,065 meters
  • Data Points: 22 AIS positions
  • Centroid: 35.8982, -5.4968
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 1064.5,
    "duration_minutes": 291.5,
    "points": 22,
    "centroid": {
        "lat": 35.89823591363636978712747804820537567138671875,
        "lon": -5.49679075909090730789330336847342550754547119140625
    },
    "bbox": {
        "min_lat": 35.89673830000000265272319666109979152679443359375,
        "min_lon": -5.49760169999999970258386383648030459880828857421875,
        "max_lat": 35.90691170000000198569978238083422183990478515625,
        "max_lon": -5.49157999999999990592414178536273539066314697265625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 8, 2026 05:39 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 29m
  • Data Points: 42 AIS positions
  • Period: 2026-10-08T05:39:31+00:00 to 2026-10-08T12:08:42+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 389.19999999999998863131622783839702606201171875,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-10-08T05:39:31+00:00",
        "lat": 35.89772330000000266636561718769371509552001953125,
        "lon": -5.49758999999999975472064761561341583728790283203125
    },
    "last_point": {
        "ts": "2026-10-08T12:08:42+00:00",
        "lat": 36.0094433000000009315044735558331012725830078125,
        "lon": -5.3738299999999998846078597125597298145294189453125
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 8, 2026 05:39 UTC 75.0% ▼
  • Duration: 5h 30m
  • Radius: 1,068 meters
  • Data Points: 23 AIS positions
  • Centroid: 35.8982, -5.4968
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 1068.09999999999990905052982270717620849609375,
    "duration_minutes": 330.5,
    "points": 23,
    "centroid": {
        "lat": 35.8982136260869566513065365143120288848876953125,
        "lon": -5.49682550869565123008442242280580103397369384765625
    },
    "bbox": {
        "min_lat": 35.89673830000000265272319666109979152679443359375,
        "min_lon": -5.49760169999999970258386383648030459880828857421875,
        "max_lat": 35.90691170000000198569978238083422183990478515625,
        "max_lon": -5.49157999999999990592414178536273539066314697265625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts🛰️? Ceuta/Gibraltar STS Zone
Oct 8, 2026 04:21 UTC 75/100 ▼
Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE
Vessel B: IMO 9290646 (DERIN) Barbados
  • Minimum Distance: 263 meters
  • Average Distance: 265 meters
  • Duration: 1h 18m
  • Period: 2026-10-08T04:21:32+00:00 to 2026-10-08T05:39:31+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 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.

View scoring breakdown
FactorScoreDetail
Distance Tightness15/25Min distance 263m, avg 265m
Duration15/25Duration 78 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In 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
SAR satellite preview for event 1473886

Click image to view full size

Searched: 2026-10-08T06:15:01.465323+00:00

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": 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"
    }
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 8, 2026 04:21 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 33m
  • Data Points: 27 AIS positions
  • Period: 2026-10-08T04:42:29+00:00 to 2026-10-08T11:15:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 393.19999999999998863131622783839702606201171875,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-10-08T04:42:29+00:00",
        "lat": 35.89772169999999817946445546112954616546630859375,
        "lon": -5.497588300000000316458681481890380382537841796875
    },
    "last_point": {
        "ts": "2026-10-08T11:15:41+00:00",
        "lat": 35.91737830000000286645445157773792743682861328125,
        "lon": -5.49452169999999995297912391833961009979248046875
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 8, 2026 04:21 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 1,075 meters
  • Data Points: 25 AIS positions
  • Centroid: 35.8982, -5.4969
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 1074.5,
    "duration_minutes": 387.5,
    "points": 25,
    "centroid": {
        "lat": 35.8981740720000033206815714947879314422607421875,
        "lon": -5.49688726799999916039496383746154606342315673828125
    },
    "bbox": {
        "min_lat": 35.89673830000000265272319666109979152679443359375,
        "min_lon": -5.4976067000000004014736987301148474216461181640625,
        "max_lat": 35.90691170000000198569978238083422183990478515625,
        "max_lon": -5.49157999999999990592414178536273539066314697265625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 8, 2026 03:18 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 33m
  • Data Points: 22 AIS positions
  • Period: 2026-10-08T03:42:33+00:00 to 2026-10-08T10:15:36+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-10-08T03:42:33+00:00",
        "lat": 35.8977282999999971480065141804516315460205078125,
        "lon": -5.497588300000000316458681481890380382537841796875
    },
    "last_point": {
        "ts": "2026-10-08T10:15:36+00:00",
        "lat": 35.89773670000000294066921924240887165069580078125,
        "lon": -5.49756330000000037472318581421859562397003173828125
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 8, 2026 03:18 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 4 meters
  • Data Points: 22 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 22,
    "centroid": {
        "lat": 35.89773257727272692818587529473006725311279296875,
        "lon": -5.49758151363636304864712656126357614994049072265625
    },
    "bbox": {
        "min_lat": 35.89771499999999804231265443377196788787841796875,
        "min_lon": -5.4976067000000004014736987301148474216461181640625,
        "max_lat": 35.89776499999999970214048516936600208282470703125,
        "max_lon": -5.497550000000000380850906367413699626922607421875
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts Ceuta/Gibraltar STS Zone
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
FactorScoreDetail
Distance Tightness15/25Min distance 263m, avg 268m
Duration20/25Duration 105 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In 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 02:27 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 27m
  • Data Points: 28 AIS positions
  • Period: 2026-10-08T02:39:30+00:00 to 2026-10-08T09:06:30+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 387,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-10-08T02:39:30+00:00",
        "lat": 35.89772500000000121644916362129151821136474609375,
        "lon": -5.4975649999999998129851519479416310787200927734375
    },
    "last_point": {
        "ts": "2026-10-08T09:06:30+00:00",
        "lat": 35.89771499999999804231265443377196788787841796875,
        "lon": -5.497576699999999760848368168808519840240478515625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 8, 2026 02:27 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 4 meters
  • Data Points: 28 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 3.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 387,
    "points": 28,
    "centroid": {
        "lat": 35.89773386785714848201678250916302204132080078125,
        "lon": -5.49758000000000013329781722859479486942291259765625
    },
    "bbox": {
        "min_lat": 35.89771499999999804231265443377196788787841796875,
        "min_lon": -5.4976067000000004014736987301148474216461181640625,
        "max_lat": 35.89776499999999970214048516936600208282470703125,
        "max_lon": -5.497550000000000380850906367413699626922607421875
    },
    "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
FactorScoreDetail
Distance Tightness15/25Min distance 262m, avg 267m
Duration15/25Duration 84 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In 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
SAR satellite preview for event 1474174

Click image to view full size

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

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,
    "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"
    }
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 8, 2026 01:00 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 33m
  • Data Points: 29 AIS positions
  • Period: 2026-10-08T01:51:30+00:00 to 2026-10-08T08:24:33+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-10-08T01:51:30+00:00",
        "lat": 35.89775670000000218351488001644611358642578125,
        "lon": -5.4975649999999998129851519479416310787200927734375
    },
    "last_point": {
        "ts": "2026-10-08T08:24:33+00:00",
        "lat": 35.8977282999999971480065141804516315460205078125,
        "lon": -5.49759170000000008116103344946168363094329833984375
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 8, 2026 01:00 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 4 meters
  • Data Points: 29 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 3.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 29,
    "centroid": {
        "lat": 35.89773528620690257184833171777427196502685546875,
        "lon": -5.49757942413793188052295590750873088836669921875
    },
    "bbox": {
        "min_lat": 35.89771499999999804231265443377196788787841796875,
        "min_lon": -5.4976067000000004014736987301148474216461181640625,
        "max_lat": 35.89776499999999970214048516936600208282470703125,
        "max_lon": -5.497550000000000380850906367413699626922607421875
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts Ceuta/Gibraltar STS Zone
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
FactorScoreDetail
Distance Tightness15/25Min distance 262m, avg 268m
Duration25/25Duration 135 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In 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 00:03 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 33m
  • Data Points: 33 AIS positions
  • Period: 2026-10-08T00:36:30+00:00 to 2026-10-08T07:09:33+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-10-08T00:36:30+00:00",
        "lat": 35.89772669999999976653271005488932132720947265625,
        "lon": -5.49759499999999956543206280912272632122039794921875
    },
    "last_point": {
        "ts": "2026-10-08T07:09:33+00:00",
        "lat": 35.89776499999999970214048516936600208282470703125,
        "lon": -5.49756330000000037472318581421859562397003173828125
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 8, 2026 00:03 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 8 meters
  • Data Points: 33 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 8.300000000000000710542735760100185871124267578125,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 33,
    "centroid": {
        "lat": 35.89773091515152003694311133585870265960693359375,
        "lon": -5.4975818090909083224460118799470365047454833984375
    },
    "bbox": {
        "min_lat": 35.897656699999998863859218545258045196533203125,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.89776499999999970214048516936600208282470703125,
        "max_lon": -5.497550000000000380850906367413699626922607421875
    },
    "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
FactorScoreDetail
Distance Tightness15/25Min distance 262m, avg 267m
Duration25/25Duration 201 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In 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
SAR satellite preview for event 1473600

Click image to view full size

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

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": 267.1000000000000227373675443232059478759765625,
    "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"
    }
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 23:06 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 36m
  • Data Points: 31 AIS positions
  • Period: 2026-10-07T23:42:31+00:00 to 2026-10-08T06:18:30+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 396,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-10-07T23:42:31+00:00",
        "lat": 35.8977282999999971480065141804516315460205078125,
        "lon": -5.49758499999999994400923242210410535335540771484375
    },
    "last_point": {
        "ts": "2026-10-08T06:18:30+00:00",
        "lat": 35.8977416999999974223101162351667881011962890625,
        "lon": -5.49758999999999975472064761561341583728790283203125
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 23:06 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 8 meters
  • Data Points: 31 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 7.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 396,
    "points": 31,
    "centroid": {
        "lat": 35.89772790967743532064559985883533954620361328125,
        "lon": -5.49758343225806367371433225343935191631317138671875
    },
    "bbox": {
        "min_lat": 35.897656699999998863859218545258045196533203125,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.89775670000000218351488001644611358642578125,
        "max_lon": -5.49755329999999986512193572707474231719970703125
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts Ceuta/Gibraltar STS Zone
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
FactorScoreDetail
Distance Tightness15/25Min distance 259m, avg 267m
Duration25/25Duration 213 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In 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 22:54 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 5h 51m
  • Data Points: 37 AIS positions
  • Period: 2026-10-07T22:54:25+00:00 to 2026-10-08T04:45:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 351.1000000000000227373675443232059478759765625,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-10-07T22:54:25+00:00",
        "lat": 35.89771499999999804231265443377196788787841796875,
        "lon": -5.497588300000000316458681481890380382537841796875
    },
    "last_point": {
        "ts": "2026-10-08T04:45:29+00:00",
        "lat": 35.89771669999999659239620086736977100372314453125,
        "lon": -5.4976067000000004014736987301148474216461181640625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 22:54 UTC 75.0% ▼
  • Duration: 5h 51m
  • Radius: 8 meters
  • Data Points: 37 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 7.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 351.1000000000000227373675443232059478759765625,
    "points": 37,
    "centroid": {
        "lat": 35.8977267621621649595908820629119873046875,
        "lon": -5.497583959459458213814286864362657070159912109375
    },
    "bbox": {
        "min_lat": 35.897656699999998863859218545258045196533203125,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.89775670000000218351488001644611358642578125,
        "max_lon": -5.49755329999999986512193572707474231719970703125
    },
    "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
FactorScoreDetail
Distance Tightness15/25Min distance 259m, avg 267m
Duration25/25Duration 288 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In 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 21:03 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 35m
  • Data Points: 36 AIS positions
  • Period: 2026-10-07T21:12:29+00:00 to 2026-10-08T03:48:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 395.8999999999999772626324556767940521240234375,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-10-07T21:12:29+00:00",
        "lat": 35.8977399999999988722265698015689849853515625,
        "lon": -5.4975617000000003287141225882805883884429931640625
    },
    "last_point": {
        "ts": "2026-10-08T03:48:26+00:00",
        "lat": 35.89773670000000294066921924240887165069580078125,
        "lon": -5.49758499999999994400923242210410535335540771484375
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 21:03 UTC 75.0% ▼
  • Duration: 6h 35m
  • Radius: 8 meters
  • Data Points: 36 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 8,
    "duration_minutes": 395.8999999999999772626324556767940521240234375,
    "points": 36,
    "centroid": {
        "lat": 35.8977287083333322925682296045124530792236328125,
        "lon": -5.49758393055555405481982234050519764423370361328125
    },
    "bbox": {
        "min_lat": 35.897656699999998863859218545258045196533203125,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.89775670000000218351488001644611358642578125,
        "max_lon": -5.49755329999999986512193572707474231719970703125
    },
    "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
FactorScoreDetail
Distance Tightness15/25Min distance 266m, avg 270m
Duration15/25Duration 75 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In 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
SAR satellite preview for event 1472915

Click image to view full size

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

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": 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"
    }
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 20:12 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 33m
  • Data Points: 34 AIS positions
  • Period: 2026-10-07T20:12:30+00:00 to 2026-10-08T02:45:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 393,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-10-07T20:12:30+00:00",
        "lat": 35.89770829999999790516085340641438961029052734375,
        "lon": -5.49759499999999956543206280912272632122039794921875
    },
    "last_point": {
        "ts": "2026-10-08T02:45:29+00:00",
        "lat": 35.8977383000000003221430233679711818695068359375,
        "lon": -5.49758000000000013329781722859479486942291259765625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 20:12 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 8 meters
  • Data Points: 34 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 7.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 393,
    "points": 34,
    "centroid": {
        "lat": 35.897726179411762359450221993029117584228515625,
        "lon": -5.497584947058822280041567864827811717987060546875
    },
    "bbox": {
        "min_lat": 35.897656699999998863859218545258045196533203125,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.89775670000000218351488001644611358642578125,
        "max_lon": -5.4975582999999996758333509205840528011322021484375
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts Ceuta/Gibraltar STS Zone
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
FactorScoreDetail
Distance Tightness15/25Min distance 264m, avg 270m
Duration25/25Duration 141 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In 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 19:00 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 36m
  • Data Points: 34 AIS positions
  • Period: 2026-10-07T19:51:30+00:00 to 2026-10-08T02:27:30+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 396,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-10-07T19:51:30+00:00",
        "lat": 35.897733299999998735074768774211406707763671875,
        "lon": -5.497588300000000316458681481890380382537841796875
    },
    "last_point": {
        "ts": "2026-10-08T02:27:30+00:00",
        "lat": 35.89772500000000121644916362129151821136474609375,
        "lon": -5.49756670000000013942553778178989887237548828125
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 19:00 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 8 meters
  • Data Points: 34 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 7.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 396,
    "points": 34,
    "centroid": {
        "lat": 35.89772583529411775771222892217338085174560546875,
        "lon": -5.49758577941176351799867916270159184932708740234375
    },
    "bbox": {
        "min_lat": 35.897656699999998863859218545258045196533203125,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.89775670000000218351488001644611358642578125,
        "max_lon": -5.4975582999999996758333509205840528011322021484375
    },
    "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
FactorScoreDetail
Distance Tightness15/25Min distance 264m, avg 269m
Duration25/25Duration 213 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In 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
SAR satellite preview for event 1472377

Click image to view full size

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

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": 269.30000000000001136868377216160297393798828125,
    "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"
    }
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 18:09 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 30m
  • Data Points: 35 AIS positions
  • Period: 2026-10-07T18:48:29+00:00 to 2026-10-08T01:18:31+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 390,
    "points_in_zone": 35,
    "first_point": {
        "ts": "2026-10-07T18:48:29+00:00",
        "lat": 35.89776330000000115205693873576819896697998046875,
        "lon": -5.4975582999999996758333509205840528011322021484375
    },
    "last_point": {
        "ts": "2026-10-08T01:18:31+00:00",
        "lat": 35.89772669999999976653271005488932132720947265625,
        "lon": -5.49758000000000013329781722859479486942291259765625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 18:09 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 5 meters
  • Data Points: 35 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 390,
    "points": 35,
    "centroid": {
        "lat": 35.89772785714286129632455413229763507843017578125,
        "lon": -5.49758594571428460540118976496160030364990234375
    },
    "bbox": {
        "min_lat": 35.8977067000000005236870492808520793914794921875,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.89776330000000115205693873576819896697998046875,
        "max_lon": -5.4975582999999996758333509205840528011322021484375
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts Ceuta/Gibraltar STS Zone
Oct 7, 2026 17:03 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 51m
  • Period: 2026-10-07T17:53:43+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 231 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
FactorScoreDetail
Distance Tightness15/25Min distance 264m, avg 269m
Duration25/25Duration 231 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In 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": 269.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 2.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 231,
    "overlap_duration_s": 13860,
    "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": "2026-10-07T17:53:43+00:00",
        "end": "2026-10-07T21:44:43+00:00"
    },
    "points_count": {
        "vessel_a": 17,
        "vessel_b": 17
    },
    "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 231 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 231 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 17:03 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 24m
  • Data Points: 30 AIS positions
  • Period: 2026-10-07T17:48:24+00:00 to 2026-10-08T00:12:34+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 384.19999999999998863131622783839702606201171875,
    "points_in_zone": 30,
    "first_point": {
        "ts": "2026-10-07T17:48:24+00:00",
        "lat": 35.8977383000000003221430233679711818695068359375,
        "lon": -5.4975716999999999501369529752992093563079833984375
    },
    "last_point": {
        "ts": "2026-10-08T00:12:34+00:00",
        "lat": 35.89773670000000294066921924240887165069580078125,
        "lon": -5.497576699999999760848368168808519840240478515625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 17:03 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 4 meters
  • Data Points: 30 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 384.19999999999998863131622783839702606201171875,
    "points": 30,
    "centroid": {
        "lat": 35.89772999333333558524827822111546993255615234375,
        "lon": -5.49758405333333488584912629448808729648590087890625
    },
    "bbox": {
        "min_lat": 35.89770829999999790516085340641438961029052734375,
        "min_lon": -5.49761330000000025819417714956216514110565185546875,
        "max_lat": 35.89776330000000115205693873576819896697998046875,
        "max_lon": -5.4975582999999996758333509205840528011322021484375
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts Ceuta/Gibraltar STS Zone
Oct 7, 2026 16:48 UTC 85/100 ▼
Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE
Vessel B: IMO 9290646 (DERIN) Barbados
  • Minimum Distance: 263 meters
  • Average Distance: 269 meters
  • Duration: 4h 24m
  • Period: 2026-10-07T16:48:26+00:00 to 2026-10-07T21:12:29+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 263m, avg 269m) for 264 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
FactorScoreDetail
Distance Tightness15/25Min distance 263m, avg 269m
Duration25/25Duration 264 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In 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": 263.19999999999998863131622783839702606201171875,
    "avg_distance_m": 268.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 264.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 15843,
    "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": "2026-10-07T16:48:26+00:00",
        "end": "2026-10-07T21:12:29+00:00"
    },
    "points_count": {
        "vessel_a": 21,
        "vessel_b": 21
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 263m, avg 269m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 264 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 263m, avg 269m) for 264 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 16:36 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 36m
  • Data Points: 29 AIS positions
  • Period: 2026-10-07T16:51:25+00:00 to 2026-10-07T23:27:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-10-07T16:51:25+00:00",
        "lat": 35.89771170000000211075530387461185455322265625,
        "lon": -5.497576699999999760848368168808519840240478515625
    },
    "last_point": {
        "ts": "2026-10-07T23:27:28+00:00",
        "lat": 35.89773670000000294066921924240887165069580078125,
        "lon": -5.49757500000000032258640203508548438549041748046875
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 16:36 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 4 meters
  • Data Points: 29 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 29,
    "centroid": {
        "lat": 35.897729596551727127007325179874897003173828125,
        "lon": -5.49758092068965620313747422187589108943939208984375
    },
    "bbox": {
        "min_lat": 35.89770829999999790516085340641438961029052734375,
        "min_lon": -5.49761170000000021218511392362415790557861328125,
        "max_lat": 35.89776330000000115205693873576819896697998046875,
        "max_lon": -5.49754170000000019769004211411811411380767822265625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 15:21 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 17m
  • Data Points: 26 AIS positions
  • Period: 2026-10-07T15:21:29+00:00 to 2026-10-07T21:39:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 377.8999999999999772626324556767940521240234375,
    "points_in_zone": 26,
    "first_point": {
        "ts": "2026-10-07T15:21:29+00:00",
        "lat": 35.89771999999999962938090902753174304962158203125,
        "lon": -5.49755669999999962982428769464604556560516357421875
    },
    "last_point": {
        "ts": "2026-10-07T21:39:25+00:00",
        "lat": 35.897750000000002046363078989088535308837890625,
        "lon": -5.49760500000000007503331289626657962799072265625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 15:21 UTC 75.0% ▼
  • Duration: 6h 17m
  • Radius: 4 meters
  • Data Points: 26 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 377.8999999999999772626324556767940521240234375,
    "points": 26,
    "centroid": {
        "lat": 35.8977301923076907996801310218870639801025390625,
        "lon": -5.49757897307692200428164142067544162273406982421875
    },
    "bbox": {
        "min_lat": 35.89770829999999790516085340641438961029052734375,
        "min_lon": -5.49760500000000007503331289626657962799072265625,
        "max_lat": 35.89776330000000115205693873576819896697998046875,
        "max_lon": -5.49754170000000019769004211411811411380767822265625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 14:15 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 18m
  • Data Points: 23 AIS positions
  • Period: 2026-10-07T14:15:26+00:00 to 2026-10-07T20:33:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 378.1000000000000227373675443232059478759765625,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-10-07T14:15:26+00:00",
        "lat": 35.89772330000000266636561718769371509552001953125,
        "lon": -5.4975816999999995715597833623178303241729736328125
    },
    "last_point": {
        "ts": "2026-10-07T20:33:29+00:00",
        "lat": 35.89773670000000294066921924240887165069580078125,
        "lon": -5.4975816999999995715597833623178303241729736328125
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 14:15 UTC 75.0% ▼
  • Duration: 6h 18m
  • Radius: 4 meters
  • Data Points: 23 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 378.1000000000000227373675443232059478759765625,
    "points": 23,
    "centroid": {
        "lat": 35.89772956521738933588494546711444854736328125,
        "lon": -5.49757840869565317376554958173073828220367431640625
    },
    "bbox": {
        "min_lat": 35.89770829999999790516085340641438961029052734375,
        "min_lon": -5.49760500000000007503331289626657962799072265625,
        "max_lat": 35.89776330000000115205693873576819896697998046875,
        "max_lon": -5.49754170000000019769004211411811411380767822265625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts🛰️✗ Ceuta/Gibraltar STS Zone
Oct 7, 2026 13:27 UTC 70/100 ▼
Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE
Vessel B: IMO 9290646 (DERIN) Barbados
  • Minimum Distance: 267 meters
  • Average Distance: 268 meters
  • Duration: 48 minutes
  • Period: 2026-10-07T13:27:25+00:00 to 2026-10-07T14:15:26+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 267m, avg 268m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness15/25Min distance 267m, avg 268m
Duration10/25Duration 48 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ceuta/Gibraltar STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-07T19:15:02.033689+00:00

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": 267.19999999999998863131622783839702606201171875,
    "avg_distance_m": 268.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 1.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 48,
    "overlap_duration_s": 2881,
    "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": "2026-10-07T13:27:25+00:00",
        "end": "2026-10-07T14:15:26+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 267m, avg 268m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 48 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 267m, avg 268m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ceuta\/Gibraltar STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.8969771000000008598362910561263561248779296875,
            "lon": -5.49875209999999992049879438127391040325164794921875
        },
        "time_window": {
            "start_ts": "2026-10-07T13:27:25+00:00",
            "end_ts": "2026-10-07T14:15:26+00:00"
        },
        "searched_at": "2026-10-07T19:15:02.033689+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 13:27 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 24m
  • Data Points: 23 AIS positions
  • Period: 2026-10-07T13:57:23+00:00 to 2026-10-07T20:21:30+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 384.1000000000000227373675443232059478759765625,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-10-07T13:57:23+00:00",
        "lat": 35.89772669999999976653271005488932132720947265625,
        "lon": -5.49758670000000027044961825595237314701080322265625
    },
    "last_point": {
        "ts": "2026-10-07T20:21:30+00:00",
        "lat": 35.89773000000000280351741821505129337310791015625,
        "lon": -5.4976000000000002643218977027572691440582275390625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 13:27 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 4 meters
  • Data Points: 23 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 384.1000000000000227373675443232059478759765625,
    "points": 23,
    "centroid": {
        "lat": 35.897729130434782973679830320179462432861328125,
        "lon": -5.49757862608695635486810715519823133945465087890625
    },
    "bbox": {
        "min_lat": 35.89770829999999790516085340641438961029052734375,
        "min_lon": -5.49760500000000007503331289626657962799072265625,
        "max_lat": 35.89776330000000115205693873576819896697998046875,
        "max_lon": -5.49754170000000019769004211411811411380767822265625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts Ceuta/Gibraltar STS Zone
Oct 7, 2026 12:03 UTC 85/100 ▼
Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE
Vessel B: IMO 9290646 (DERIN) Barbados
  • Minimum Distance: 267 meters
  • Average Distance: 269 meters
  • Duration: 2h 12m
  • Period: 2026-10-07T12:03:24+00:00 to 2026-10-07T14:15:26+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 267m, avg 269m) for 132 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
FactorScoreDetail
Distance Tightness15/25Min distance 267m, avg 269m
Duration25/25Duration 132 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In 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": 267.19999999999998863131622783839702606201171875,
    "avg_distance_m": 269.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 132,
    "overlap_duration_s": 7922,
    "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": "2026-10-07T12:03:24+00:00",
        "end": "2026-10-07T14:15:26+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 267m, avg 269m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 132 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 (HAFNIA DESPINA and DERIN) maintained close proximity (min 267m, avg 269m) for 132 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 12:03 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 12m
  • Data Points: 19 AIS positions
  • Period: 2026-10-07T12:48:28+00:00 to 2026-10-07T19:00:33+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 372.1000000000000227373675443232059478759765625,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-10-07T12:48:28+00:00",
        "lat": 35.89773000000000280351741821505129337310791015625,
        "lon": -5.49758329999999961756884658825583755970001220703125
    },
    "last_point": {
        "ts": "2026-10-07T19:00:33+00:00",
        "lat": 35.89772500000000121644916362129151821136474609375,
        "lon": -5.49758000000000013329781722859479486942291259765625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 12:03 UTC 75.0% ▼
  • Duration: 6h 12m
  • Radius: 4 meters
  • Data Points: 19 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4,
    "duration_minutes": 372.1000000000000227373675443232059478759765625,
    "points": 19,
    "centroid": {
        "lat": 35.89773017894736995003768242895603179931640625,
        "lon": -5.49757553157894651718606837675906717777252197265625
    },
    "bbox": {
        "min_lat": 35.89771170000000211075530387461185455322265625,
        "min_lon": -5.49758999999999975472064761561341583728790283203125,
        "max_lat": 35.89776330000000115205693873576819896697998046875,
        "max_lon": -5.49754170000000019769004211411811411380767822265625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 11:12 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 35m
  • Data Points: 18 AIS positions
  • Period: 2026-10-07T11:12:27+00:00 to 2026-10-07T17:48:24+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 395.8999999999999772626324556767940521240234375,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-10-07T11:12:27+00:00",
        "lat": 35.8977383000000003221430233679711818695068359375,
        "lon": -5.49757329999999999614601620123721659183502197265625
    },
    "last_point": {
        "ts": "2026-10-07T17:48:24+00:00",
        "lat": 35.8977383000000003221430233679711818695068359375,
        "lon": -5.4975716999999999501369529752992093563079833984375
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 11:12 UTC 75.0% ▼
  • Duration: 6h 35m
  • Radius: 3 meters
  • Data Points: 18 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 395.8999999999999772626324556767940521240234375,
    "points": 18,
    "centroid": {
        "lat": 35.897729816666668511970783583819866180419921875,
        "lon": -5.49757463888888775471741610090248286724090576171875
    },
    "bbox": {
        "min_lat": 35.89771170000000211075530387461185455322265625,
        "min_lon": -5.49758999999999975472064761561341583728790283203125,
        "max_lat": 35.89775329999999797792042954824864864349365234375,
        "max_lon": -5.49754170000000019769004211411811411380767822265625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 09:27 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6 hours
  • Data Points: 14 AIS positions
  • Period: 2026-10-07T09:27:26+00:00 to 2026-10-07T15:27:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 360,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-10-07T09:27:26+00:00",
        "lat": 35.8977383000000003221430233679711818695068359375,
        "lon": -5.4975716999999999501369529752992093563079833984375
    },
    "last_point": {
        "ts": "2026-10-07T15:27:28+00:00",
        "lat": 35.89773170000000135360096464864909648895263671875,
        "lon": -5.49758499999999994400923242210410535335540771484375
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 09:27 UTC 75.0% ▼
  • Duration: 6 hours
  • Radius: 3 meters
  • Data Points: 14 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 360,
    "points": 14,
    "centroid": {
        "lat": 35.89773404285714519801331334747374057769775390625,
        "lon": -5.49757476428571489890373413800261914730072021484375
    },
    "bbox": {
        "min_lat": 35.89771999999999962938090902753174304962158203125,
        "min_lon": -5.497588300000000316458681481890380382537841796875,
        "max_lat": 35.89775329999999797792042954824864864349365234375,
        "max_lon": -5.4975550000000001915623215609230101108551025390625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts Ceuta/Gibraltar STS Zone
Oct 7, 2026 08:00 UTC 70/100 ▼
Vessel A: IMO 9290646 (DERIN) Barbados
Vessel B: IMO 9796494 (HAFNIA DESPINA) SINGAPORE
  • Minimum Distance: 263 meters
  • Average Distance: 265 meters
  • Duration: 51 minutes
  • Period: 2026-10-07T08:05:43+00:00 to 2026-10-07T08:56:43+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (DERIN and HAFNIA DESPINA) maintained close proximity (min 262m, avg 265m) for 51 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
FactorScoreDetail
Distance Tightness15/25Min distance 262m, avg 265m
Duration10/25Duration 51 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In 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": 262.5,
    "avg_distance_m": 265.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 3,
    "duration_minutes": 51,
    "overlap_duration_s": 3060,
    "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": "2026-10-07T08:05:43+00:00",
        "end": "2026-10-07T08:56:43+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 262m, avg 265m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 51 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 262m, avg 265m) for 51 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 08:00 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 18m
  • Data Points: 16 AIS positions
  • Period: 2026-10-07T08:00:25+00:00 to 2026-10-07T14:18:24+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 378,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-10-07T08:00:25+00:00",
        "lat": 35.8977399999999988722265698015689849853515625,
        "lon": -5.4975816999999995715597833623178303241729736328125
    },
    "last_point": {
        "ts": "2026-10-07T14:18:24+00:00",
        "lat": 35.89774330000000190921127796173095703125,
        "lon": -5.4975617000000003287141225882805883884429931640625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 08:00 UTC 75.0% ▼
  • Duration: 6h 18m
  • Radius: 3 meters
  • Data Points: 16 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 2.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 378,
    "points": 16,
    "centroid": {
        "lat": 35.89773436875000101053956313990056514739990234375,
        "lon": -5.49757635625000062873368733562529087066650390625
    },
    "bbox": {
        "min_lat": 35.89771999999999962938090902753174304962158203125,
        "min_lon": -5.497588300000000316458681481890380382537841796875,
        "max_lat": 35.89775329999999797792042954824864864349365234375,
        "max_lon": -5.4975550000000001915623215609230101108551025390625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 07:06 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 3 meters
  • Data Points: 14 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 393,
    "points": 14,
    "centroid": {
        "lat": 35.89773547142856813252365100197494029998779296875,
        "lon": -5.49757654285714369990500927087850868701934814453125
    },
    "bbox": {
        "min_lat": 35.89771999999999962938090902753174304962158203125,
        "min_lon": -5.497588300000000316458681481890380382537841796875,
        "max_lat": 35.89775329999999797792042954824864864349365234375,
        "max_lon": -5.4975550000000001915623215609230101108551025390625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 07:06 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 33m
  • Data Points: 14 AIS positions
  • Period: 2026-10-07T07:06:23+00:00 to 2026-10-07T13:39:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 393,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-10-07T07:06:23+00:00",
        "lat": 35.8977399999999988722265698015689849853515625,
        "lon": -5.49758000000000013329781722859479486942291259765625
    },
    "last_point": {
        "ts": "2026-10-07T13:39:25+00:00",
        "lat": 35.89771999999999962938090902753174304962158203125,
        "lon": -5.497588300000000316458681481890380382537841796875
    }
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 06:00 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 36m
  • Data Points: 13 AIS positions
  • Period: 2026-10-07T06:12:25+00:00 to 2026-10-07T12:48:28+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-10-07T06:12:25+00:00",
        "lat": 35.89772500000000121644916362129151821136474609375,
        "lon": -5.49758329999999961756884658825583755970001220703125
    },
    "last_point": {
        "ts": "2026-10-07T12:48:28+00:00",
        "lat": 35.89773000000000280351741821505129337310791015625,
        "lon": -5.49758329999999961756884658825583755970001220703125
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 06:00 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 3 meters
  • Data Points: 13 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 2.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 13,
    "centroid": {
        "lat": 35.89773627692307655934200738556683063507080078125,
        "lon": -5.497575507692307184015589882619678974151611328125
    },
    "bbox": {
        "min_lat": 35.89772330000000266636561718769371509552001953125,
        "min_lon": -5.49758499999999994400923242210410535335540771484375,
        "max_lat": 35.89775329999999797792042954824864864349365234375,
        "max_lon": -5.4975550000000001915623215609230101108551025390625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts🛰️✗ Ceuta/Gibraltar STS Zone
Oct 7, 2026 05:42 UTC 65/100 ▼
Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE
Vessel B: IMO 9290646 (DERIN) Barbados
  • Minimum Distance: 265 meters
  • Average Distance: 267 meters
  • Duration: 30 minutes
  • Period: 2026-10-07T05:42:24+00:00 to 2026-10-07T06:12:25+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 265m, avg 267m) for 30 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness15/25Min distance 265m, avg 267m
Duration5/25Duration 30 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ceuta/Gibraltar STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-07T11:15:01.437669+00:00

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": 264.6000000000000227373675443232059478759765625,
    "avg_distance_m": 266.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.6999999999999999555910790149937383830547332763671875,
    "duration_minutes": 30,
    "overlap_duration_s": 1801,
    "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": "2026-10-07T05:42:24+00:00",
        "end": "2026-10-07T06:12:25+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 265m, avg 267m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 30 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \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 265m, avg 267m) for 30 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ceuta\/Gibraltar STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.8969929000000007590642780996859073638916015625,
            "lon": -5.4987472999999997824716047034598886966705322265625
        },
        "time_window": {
            "start_ts": "2026-10-07T05:42:24+00:00",
            "end_ts": "2026-10-07T06:12:25+00:00"
        },
        "searched_at": "2026-10-07T11:15:01.437669+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 05:42 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 24m
  • Data Points: 15 AIS positions
  • Period: 2026-10-07T05:42:24+00:00 to 2026-10-07T12:06:29+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 384.1000000000000227373675443232059478759765625,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-10-07T05:42:24+00:00",
        "lat": 35.89772500000000121644916362129151821136474609375,
        "lon": -5.49758999999999975472064761561341583728790283203125
    },
    "last_point": {
        "ts": "2026-10-07T12:06:29+00:00",
        "lat": 35.89773670000000294066921924240887165069580078125,
        "lon": -5.49758499999999994400923242210410535335540771484375
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 05:42 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 3 meters
  • Data Points: 15 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 384.1000000000000227373675443232059478759765625,
    "points": 15,
    "centroid": {
        "lat": 35.8977364400000027444548322819173336029052734375,
        "lon": -5.4975763333333329541119383065961301326751708984375
    },
    "bbox": {
        "min_lat": 35.89772330000000266636561718769371509552001953125,
        "min_lon": -5.49758999999999975472064761561341583728790283203125,
        "max_lat": 35.89775329999999797792042954824864864349365234375,
        "max_lon": -5.4975550000000001915623215609230101108551025390625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts Ceuta/Gibraltar STS Zone
Oct 7, 2026 04:39 UTC 80/100 ▼
Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE
Vessel B: IMO 9290646 (DERIN) Barbados
  • Minimum Distance: 264 meters
  • Average Distance: 266 meters
  • Duration: 1h 33m
  • Period: 2026-10-07T04:39:27+00:00 to 2026-10-07T06:12:25+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 (HAFNIA DESPINA and DERIN) maintained close proximity (min 264m, avg 266m) for 93 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
FactorScoreDetail
Distance Tightness15/25Min distance 264m, avg 266m
Duration20/25Duration 93 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In 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": 263.6000000000000227373675443232059478759765625,
    "avg_distance_m": 266.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 93,
    "overlap_duration_s": 5578,
    "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": "2026-10-07T04:39:27+00:00",
        "end": "2026-10-07T06:12:25+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 264m, avg 266m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 93 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 (HAFNIA DESPINA and DERIN) maintained close proximity (min 264m, avg 266m) for 93 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 04:09 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 5h 41m
  • Data Points: 13 AIS positions
  • Period: 2026-10-07T04:09:30+00:00 to 2026-10-07T09:51:24+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 341.8999999999999772626324556767940521240234375,
    "points_in_zone": 13,
    "first_point": {
        "ts": "2026-10-07T04:09:30+00:00",
        "lat": 35.89771499999999804231265443377196788787841796875,
        "lon": -5.49759499999999956543206280912272632122039794921875
    },
    "last_point": {
        "ts": "2026-10-07T09:51:24+00:00",
        "lat": 35.8977416999999974223101162351667881011962890625,
        "lon": -5.49756830000000018543460100772790610790252685546875
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 04:09 UTC 75.0% ▼
  • Duration: 5h 41m
  • Radius: 2 meters
  • Data Points: 13 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 2.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 341.8999999999999772626324556767940521240234375,
    "points": 13,
    "centroid": {
        "lat": 35.89773153846153519452855107374489307403564453125,
        "lon": -5.49758103076923010377186074038036167621612548828125
    },
    "bbox": {
        "min_lat": 35.89771499999999804231265443377196788787841796875,
        "min_lon": -5.49759499999999956543206280912272632122039794921875,
        "max_lat": 35.89774330000000190921127796173095703125,
        "max_lon": -5.49756830000000018543460100772790610790252685546875
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts🛰️✗ Ceuta/Gibraltar STS Zone
Oct 7, 2026 03:18 UTC 65/100 ▼
Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE
Vessel B: IMO 9290646 (DERIN) Barbados
  • Minimum Distance: 271 meters
  • Average Distance: 271 meters
  • Duration: 33 minutes
  • Period: 2026-10-07T03:18:25+00:00 to 2026-10-07T03:51:25+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Ceuta/Gibraltar STS Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 270m, avg 271m) for 33 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness15/25Min distance 270m, avg 271m
Duration5/25Duration 33 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Ceuta/Gibraltar STS Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-10-07T09:45:01.564279+00:00

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": 270.5,
    "avg_distance_m": 271.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 33,
    "overlap_duration_s": 1980,
    "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": "2026-10-07T03:18:25+00:00",
        "end": "2026-10-07T03:51:25+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 270m, avg 271m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 33 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 270m, avg 271m) for 33 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ceuta\/Gibraltar STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 35.89698390000000216559783439151942729949951171875,
            "lon": -5.498770300000000332829586113803088665008544921875
        },
        "time_window": {
            "start_ts": "2026-10-07T03:18:25+00:00",
            "end_ts": "2026-10-07T03:51:25+00:00"
        },
        "searched_at": "2026-10-07T09:45:01.564279+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 03:00 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 21m
  • Data Points: 15 AIS positions
  • Period: 2026-10-07T03:30:24+00:00 to 2026-10-07T09:51:24+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 381,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-10-07T03:30:24+00:00",
        "lat": 35.89772669999999976653271005488932132720947265625,
        "lon": -5.497569999999999623696567141450941562652587890625
    },
    "last_point": {
        "ts": "2026-10-07T09:51:24+00:00",
        "lat": 35.8977416999999974223101162351667881011962890625,
        "lon": -5.49756830000000018543460100772790610790252685546875
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 03:00 UTC 75.0% ▼
  • Duration: 6h 21m
  • Radius: 2 meters
  • Data Points: 15 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 2.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 381,
    "points": 15,
    "centroid": {
        "lat": 35.8977308933333318918812437914311885833740234375,
        "lon": -5.49758011333333218573216072400100529193878173828125
    },
    "bbox": {
        "min_lat": 35.89771499999999804231265443377196788787841796875,
        "min_lon": -5.49759499999999956543206280912272632122039794921875,
        "max_lat": 35.89774330000000190921127796173095703125,
        "max_lon": -5.49756830000000018543460100772790610790252685546875
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts Ceuta/Gibraltar STS Zone
Oct 7, 2026 02:47 UTC 75/100 ▼
Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE
Vessel B: IMO 9290646 (DERIN) Barbados
  • Minimum Distance: 267 meters
  • Average Distance: 270 meters
  • Duration: 1 hours
  • Period: 2026-10-07T02:51:25+00:00 to 2026-10-07T03:51:25+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 266m, avg 270m) for 60 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
FactorScoreDetail
Distance Tightness15/25Min distance 266m, avg 270m
Duration15/25Duration 60 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In 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": 266.5,
    "avg_distance_m": 269.5,
    "distance_consistency_m": 2.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 60,
    "overlap_duration_s": 3600,
    "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": "2026-10-07T02:51:25+00:00",
        "end": "2026-10-07T03:51:25+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 266m, avg 270m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 60 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 266m, avg 270m) for 60 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 02:24 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 36m
  • Data Points: 20 AIS positions
  • Period: 2026-10-07T02:51:25+00:00 to 2026-10-07T09:27:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 396,
    "points_in_zone": 20,
    "first_point": {
        "ts": "2026-10-07T02:51:25+00:00",
        "lat": 35.8977383000000003221430233679711818695068359375,
        "lon": -5.49759170000000008116103344946168363094329833984375
    },
    "last_point": {
        "ts": "2026-10-07T09:27:26+00:00",
        "lat": 35.8977383000000003221430233679711818695068359375,
        "lon": -5.4975716999999999501369529752992093563079833984375
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 02:24 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 2 meters
  • Data Points: 20 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 2.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 396,
    "points": 20,
    "centroid": {
        "lat": 35.89773125500000361398633685894310474395751953125,
        "lon": -5.49758292000000015065097613842226564884185791015625
    },
    "bbox": {
        "min_lat": 35.89771499999999804231265443377196788787841796875,
        "min_lon": -5.49759499999999956543206280912272632122039794921875,
        "max_lat": 35.89774330000000190921127796173095703125,
        "max_lon": -5.497569999999999623696567141450941562652587890625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Sts Ceuta/Gibraltar STS Zone
Oct 7, 2026 01:24 UTC 85/100 ▼
Vessel A: IMO 9796494 (HAFNIA DESPINA) SINGAPORE
Vessel B: IMO 9290646 (DERIN) Barbados
  • Minimum Distance: 267 meters
  • Average Distance: 269 meters
  • Duration: 2h 26m
  • Period: 2026-10-07T01:24:28+00:00 to 2026-10-07T03:51:25+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 266m, avg 269m) for 147 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ceuta/Gibraltar STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness15/25Min distance 266m, avg 269m
Duration25/25Duration 147 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In 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": 266.5,
    "avg_distance_m": 269.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 2,
    "duration_minutes": 146.900000000000005684341886080801486968994140625,
    "overlap_duration_s": 8817,
    "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": "2026-10-07T01:24:28+00:00",
        "end": "2026-10-07T03:51:25+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 15,
                "max": 25,
                "detail": "Min distance 266m, avg 269m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 147 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Ceuta\/Gibraltar STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (HAFNIA DESPINA and DERIN) maintained close proximity (min 266m, avg 269m) for 147 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Ceuta\/Gibraltar STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 01:24 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 5h 41m
  • Data Points: 17 AIS positions
  • Period: 2026-10-07T01:24:28+00:00 to 2026-10-07T07:06:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 341.8999999999999772626324556767940521240234375,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-10-07T01:24:28+00:00",
        "lat": 35.897701699999998936618794687092304229736328125,
        "lon": -5.497569999999999623696567141450941562652587890625
    },
    "last_point": {
        "ts": "2026-10-07T07:06:23+00:00",
        "lat": 35.8977399999999988722265698015689849853515625,
        "lon": -5.49758000000000013329781722859479486942291259765625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 01:24 UTC 75.0% ▼
  • Duration: 5h 41m
  • Radius: 3 meters
  • Data Points: 17 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 341.8999999999999772626324556767940521240234375,
    "points": 17,
    "centroid": {
        "lat": 35.89772883529411728886771015822887420654296875,
        "lon": -5.49758352941176386963206823565997183322906494140625
    },
    "bbox": {
        "min_lat": 35.897701699999998936618794687092304229736328125,
        "min_lon": -5.49759499999999956543206280912272632122039794921875,
        "max_lat": 35.89774330000000190921127796173095703125,
        "max_lon": -5.497569999999999623696567141450941562652587890625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 7, 2026 00:00 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 17m
  • Data Points: 19 AIS positions
  • Period: 2026-10-07T00:48:26+00:00 to 2026-10-07T07:06:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 377.8999999999999772626324556767940521240234375,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-10-07T00:48:26+00:00",
        "lat": 35.8977349999999972851583152078092098236083984375,
        "lon": -5.497576699999999760848368168808519840240478515625
    },
    "last_point": {
        "ts": "2026-10-07T07:06:23+00:00",
        "lat": 35.8977399999999988722265698015689849853515625,
        "lon": -5.49758000000000013329781722859479486942291259765625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 7, 2026 00:00 UTC 75.0% ▼
  • Duration: 6h 17m
  • Radius: 4 meters
  • Data Points: 19 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 3.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 377.8999999999999772626324556767940521240234375,
    "points": 19,
    "centroid": {
        "lat": 35.89772728947368563012787490151822566986083984375,
        "lon": -5.49758263157894777606315983575768768787384033203125
    },
    "bbox": {
        "min_lat": 35.8976933000000002493834472261369228363037109375,
        "min_lon": -5.49759499999999956543206280912272632122039794921875,
        "max_lat": 35.89774330000000190921127796173095703125,
        "max_lon": -5.497569999999999623696567141450941562652587890625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 6, 2026 23:45 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 27m
  • Data Points: 23 AIS positions
  • Period: 2026-10-06T23:45:21+00:00 to 2026-10-07T06:12:25+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-10-06T23:45:21+00:00",
        "lat": 35.89772669999999976653271005488932132720947265625,
        "lon": -5.4975816999999995715597833623178303241729736328125
    },
    "last_point": {
        "ts": "2026-10-07T06:12:25+00:00",
        "lat": 35.89772500000000121644916362129151821136474609375,
        "lon": -5.49758329999999961756884658825583755970001220703125
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 6, 2026 23:45 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 4 meters
  • Data Points: 23 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 23,
    "centroid": {
        "lat": 35.89772508260870154117583297193050384521484375,
        "lon": -5.497587104347825714967257226817309856414794921875
    },
    "bbox": {
        "min_lat": 35.8976933000000002493834472261369228363037109375,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.89774330000000190921127796173095703125,
        "max_lon": -5.497569999999999623696567141450941562652587890625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 6, 2026 22:00 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 39m
  • Data Points: 22 AIS positions
  • Period: 2026-10-06T22:00:20+00:00 to 2026-10-07T04:39:27+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 399.1000000000000227373675443232059478759765625,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-10-06T22:00:20+00:00",
        "lat": 35.89774330000000190921127796173095703125,
        "lon": -5.4975933000000001271700966753996908664703369140625
    },
    "last_point": {
        "ts": "2026-10-07T04:39:27+00:00",
        "lat": 35.89771999999999962938090902753174304962158203125,
        "lon": -5.49759170000000008116103344946168363094329833984375
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 6, 2026 22:00 UTC 75.0% ▼
  • Duration: 6h 39m
  • Radius: 4 meters
  • Data Points: 22 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 3.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 399.1000000000000227373675443232059478759765625,
    "points": 22,
    "centroid": {
        "lat": 35.89772478181819082010406418703496456146240234375,
        "lon": -5.49758863636363681592911234474740922451019287109375
    },
    "bbox": {
        "min_lat": 35.8976933000000002493834472261369228363037109375,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.89774330000000190921127796173095703125,
        "max_lon": -5.497569999999999623696567141450941562652587890625
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 6, 2026 21:06 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 36m
  • Data Points: 23 AIS positions
  • Period: 2026-10-06T21:33:27+00:00 to 2026-10-07T04:09:30+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-10-06T21:33:27+00:00",
        "lat": 35.897746699999999009378370828926563262939453125,
        "lon": -5.49758499999999994400923242210410535335540771484375
    },
    "last_point": {
        "ts": "2026-10-07T04:09:30+00:00",
        "lat": 35.89771499999999804231265443377196788787841796875,
        "lon": -5.49759499999999956543206280912272632122039794921875
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 6, 2026 21:06 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 4 meters
  • Data Points: 23 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 23,
    "centroid": {
        "lat": 35.89772631304348493586076074279844760894775390625,
        "lon": -5.49758746086956495702224856358952820301055908203125
    },
    "bbox": {
        "min_lat": 35.8976933000000002493834472261369228363037109375,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.897746699999999009378370828926563262939453125,
        "max_lon": -5.49756830000000018543460100772790610790252685546875
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 6, 2026 20:27 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 32m
  • Data Points: 22 AIS positions
  • Period: 2026-10-06T20:36:27+00:00 to 2026-10-07T03:09:23+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 392.8999999999999772626324556767940521240234375,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-10-06T20:36:27+00:00",
        "lat": 35.897750000000002046363078989088535308837890625,
        "lon": -5.49758670000000027044961825595237314701080322265625
    },
    "last_point": {
        "ts": "2026-10-07T03:09:23+00:00",
        "lat": 35.89772169999999817946445546112954616546630859375,
        "lon": -5.49758499999999994400923242210410535335540771484375
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 6, 2026 20:27 UTC 75.0% ▼
  • Duration: 6h 32m
  • Radius: 4 meters
  • Data Points: 22 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 392.8999999999999772626324556767940521240234375,
    "points": 22,
    "centroid": {
        "lat": 35.897728490909088350235833786427974700927734375,
        "lon": -5.49758894090909056018290357314981520175933837890625
    },
    "bbox": {
        "min_lat": 35.8976933000000002493834472261369228363037109375,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.897750000000002046363078989088535308837890625,
        "max_lon": -5.49756670000000013942553778178989887237548828125
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 6, 2026 19:09 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 27m
  • Data Points: 19 AIS positions
  • Period: 2026-10-06T19:57:22+00:00 to 2026-10-07T02:24:22+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 387,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-10-06T19:57:22+00:00",
        "lat": 35.89773170000000135360096464864909648895263671875,
        "lon": -5.49762500000000020605739337042905390262603759765625
    },
    "last_point": {
        "ts": "2026-10-07T02:24:22+00:00",
        "lat": 35.89772669999999976653271005488932132720947265625,
        "lon": -5.49758000000000013329781722859479486942291259765625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 6, 2026 19:09 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 5 meters
  • Data Points: 19 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 387,
    "points": 19,
    "centroid": {
        "lat": 35.8977288631578943522981717251241207122802734375,
        "lon": -5.49758964736842159481966518796980381011962890625
    },
    "bbox": {
        "min_lat": 35.8976933000000002493834472261369228363037109375,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.89776830000000273912519332952797412872314453125,
        "max_lon": -5.49756670000000013942553778178989887237548828125
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 6, 2026 18:27 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 27m
  • Data Points: 21 AIS positions
  • Period: 2026-10-06T18:27:22+00:00 to 2026-10-07T00:54:27+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-10-06T18:27:22+00:00",
        "lat": 35.897746699999999009378370828926563262939453125,
        "lon": -5.49759170000000008116103344946168363094329833984375
    },
    "last_point": {
        "ts": "2026-10-07T00:54:27+00:00",
        "lat": 35.8976933000000002493834472261369228363037109375,
        "lon": -5.49757329999999999614601620123721659183502197265625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 6, 2026 18:27 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 5 meters
  • Data Points: 21 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 21,
    "centroid": {
        "lat": 35.89773214761904540637260652147233486175537109375,
        "lon": -5.49759079047619092506238303030841052532196044921875
    },
    "bbox": {
        "min_lat": 35.8976933000000002493834472261369228363037109375,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.89776830000000273912519332952797412872314453125,
        "max_lon": -5.49756670000000013942553778178989887237548828125
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 6, 2026 17:36 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 24m
  • Data Points: 18 AIS positions
  • Period: 2026-10-06T17:36:23+00:00 to 2026-10-07T00:00:26+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 384.1000000000000227373675443232059478759765625,
    "points_in_zone": 18,
    "first_point": {
        "ts": "2026-10-06T17:36:23+00:00",
        "lat": 35.89773000000000280351741821505129337310791015625,
        "lon": -5.4976000000000002643218977027572691440582275390625
    },
    "last_point": {
        "ts": "2026-10-07T00:00:26+00:00",
        "lat": 35.89770999999999645524439984001219272613525390625,
        "lon": -5.49762829999999969032842273009009659290313720703125
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 6, 2026 17:36 UTC 75.0% ▼
  • Duration: 6h 24m
  • Radius: 4 meters
  • Data Points: 18 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 384.1000000000000227373675443232059478759765625,
    "points": 18,
    "centroid": {
        "lat": 35.89773435555556346798766753636300563812255859375,
        "lon": -5.49759221666666775263365707360208034515380859375
    },
    "bbox": {
        "min_lat": 35.8977033000000034235199564136564731597900390625,
        "min_lon": -5.49762829999999969032842273009009659290313720703125,
        "max_lat": 35.89776830000000273912519332952797412872314453125,
        "max_lon": -5.49756670000000013942553778178989887237548828125
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 6, 2026 16:36 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 6m
  • Data Points: 16 AIS positions
  • Period: 2026-10-06T16:36:17+00:00 to 2026-10-06T22:42:20+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 366.1000000000000227373675443232059478759765625,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-10-06T16:36:17+00:00",
        "lat": 35.89772330000000266636561718769371509552001953125,
        "lon": -5.49758999999999975472064761561341583728790283203125
    },
    "last_point": {
        "ts": "2026-10-06T22:42:20+00:00",
        "lat": 35.89772500000000121644916362129151821136474609375,
        "lon": -5.4975933000000001271700966753996908664703369140625
    }
}
Methodology: 2026.01.18
Loiter Ceuta/Gibraltar STS Zone
Oct 6, 2026 16:36 UTC 75.0% ▼
  • Duration: 6h 6m
  • Radius: 4 meters
  • Data Points: 16 AIS positions
  • Centroid: 35.8977, -5.4976
  • Zone: Ceuta/Gibraltar STS Zone
Show Raw Evidence JSON
{
    "radius_m": 3.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 366.1000000000000227373675443232059478759765625,
    "points": 16,
    "centroid": {
        "lat": 35.8977376062500042053216020576655864715576171875,
        "lon": -5.49758957500000011719976100721396505832672119140625
    },
    "bbox": {
        "min_lat": 35.89771669999999659239620086736977100372314453125,
        "min_lon": -5.49762500000000020605739337042905390262603759765625,
        "max_lat": 35.89776830000000273912519332952797412872314453125,
        "max_lon": -5.49756670000000013942553778178989887237548828125
    },
    "zone_id": "osint_ceuta"
}
Methodology: 2026.01.18
Zone Dwell Ceuta/Gibraltar STS Zone
Oct 6, 2026 15:00 UTC 80.0% ▼
  • Zone: Ceuta/Gibraltar STS Zone
  • Duration: 6h 36m
  • Data Points: 16 AIS positions
  • Period: 2026-10-06T15:51:17+00:00 to 2026-10-06T22:27:18+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_ceuta",
    "zone_name": "Ceuta\/Gibraltar STS Zone",
    "dwell_minutes": 396,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-10-06T15:51:17+00:00",
        "lat": 35.89773000000000280351741821505129337310791015625,
        "lon": -5.49758329999999961756884658825583755970001220703125
    },
    "last_point": {
        "ts": "2026-10-06T22:27:18+00:00",
        "lat": 35.89773000000000280351741821505129337310791015625,
        "lon": -5.49758999999999975472064761561341583728790283203125
    }
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Oct 8 13:31 36.0610 -5.3429 3.7 kn 305.8° Ceuta/Gibraltar STS Zone
Oct 8 13:22 36.0566 -5.3358 2.2 kn 310.1° Ceuta/Gibraltar STS Zone
Oct 8 13:17 36.0551 -5.3337 0.9 kn 311.5° Ceuta/Gibraltar STS Zone
Oct 8 13:13 36.0549 -5.3334 0.6 kn 109.6° Ceuta/Gibraltar STS Zone
Oct 8 13:11 36.0550 -5.3339 0.6 kn 107.4° Ceuta/Gibraltar STS Zone
Oct 8 13:07 36.0552 -5.3347 0.5 kn 91.7° Ceuta/Gibraltar STS Zone
Oct 8 13:04 36.0551 -5.3352 0.4 kn 83.4° Ceuta/Gibraltar STS Zone
Oct 8 13:01 36.0552 -5.3356 0.2 kn 121.4° Ceuta/Gibraltar STS Zone
Oct 8 12:56 36.0555 -5.3363 1.1 kn 93.8° Ceuta/Gibraltar STS Zone
Oct 8 12:52 36.0556 -5.3380 1.3 kn 100.6° Ceuta/Gibraltar STS Zone
Oct 8 12:45 36.0562 -5.3414 1.4 kn 103.9° Ceuta/Gibraltar STS Zone
Oct 8 12:33 36.0528 -5.3482 4.0 kn 37.6° Ceuta/Gibraltar STS Zone
Oct 8 12:31 36.0504 -5.3506 4.8 kn 45.3° Ceuta/Gibraltar STS Zone
Oct 8 12:29 36.0488 -5.3525 5.0 kn 42.0° Ceuta/Gibraltar STS Zone
Oct 8 12:26 36.0447 -5.3569 5.9 kn 39.9° Ceuta/Gibraltar STS Zone
Oct 8 12:21 36.0385 -5.3628 7.0 kn 33.4° Ceuta/Gibraltar STS Zone
Oct 8 12:15 36.0263 -5.3706 8.1 kn 15.8° Ceuta/Gibraltar STS Zone
Oct 8 12:10 36.0153 -5.3729 9.7 kn 6.3° Ceuta/Gibraltar STS Zone
Oct 8 12:08 36.0094 -5.3738 9.7 kn 11.1° Ceuta/Gibraltar STS Zone
Oct 8 12:07 36.0063 -5.3748 9.6 kn 14.9° Ceuta/Gibraltar STS Zone

Showing 20 of 100 recent positions.

Data Source

Vessel observed through FleetLeaks' AIS monitoring system in zones of interest. Identity and position data derived from AIS broadcasts and public maritime databases.

Disclaimer: AIS data can be spoofed or falsified. Vessel identities should be independently verified before making compliance decisions.