Intelligence Feed - FleetLeaks

IMO 9292199

Vessel information

Vessel Name ALTURA

IMO Number 9292199

MMSI 667001275

Vessel Type Tanker

Flag 🇸🇱 Sierra Leone

Call Sign 9LU2078

Length 274 m

Beam 50 m

Sanction Status

⚠️ This vessel is sanctioned.

View Full Sanctions Details →

Detected Events (100)

Sts🛰️⏳ Bosphorus/Dardanelles Approach

Jun 9, 2026 09:01 UTC 75/100 ▼

Vessel A: ALTURA (ALTURA) Sierra Leone

Vessel B: VELORA (VELORA) Sierra Leone

Minimum Distance: 41 meters
Average Distance: 47 meters
Duration: 33 minutes
Period: 2026-06-09T09:01:48+00:00 to 2026-06-09T09:34:48+00:00
Vessel A Avg Speed: 0.0 knots
Vessel B Avg Speed: 0.0 knots
Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (ALTURA and VELORA) maintained close proximity (min 41m, avg 47m) 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 Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 41m, avg 47m
Duration	5/25	Duration 33 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±3m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Bosphorus/Dardanelles Approach

🛰️ Satellite Corroboration

⏳ SAR Pending

Satellite imagery search queued

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 667001275,
        "imo": 9292199,
        "name": "ALTURA",
        "flag": "Sierra Leone"
    },
    "vessel_b": {
        "mmsi": 667001274,
        "imo": 9290373,
        "name": "VELORA",
        "flag": "Sierra Leone"
    },
    "min_distance_m": 40.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 47.10000000000000142108547152020037174224853515625,
    "distance_consistency_m": 3.399999999999999911182158029987476766109466552734375,
    "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": "2026-06-09T09:01:48+00:00",
        "end": "2026-06-09T09:34:48+00:00"
    },
    "points_count": {
        "vessel_a": 11,
        "vessel_b": 11
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 41m, avg 47m"
            },
            "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 \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (ALTURA and VELORA) maintained close proximity (min 41m, avg 47m) 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 Bosphorus\/Dardanelles Approach, a known STS activity area."
    },
    "sar": {
        "status": "pending"
    }
}

Methodology: 2026.01.18

Sts Bosphorus/Dardanelles Approach

Jun 9, 2026 05:31 UTC 80/100 ▼

Vessel A: ALTURA (ALTURA) Sierra Leone

Vessel B: VELORA (VELORA) Sierra Leone

Minimum Distance: 28 meters
Average Distance: 56 meters
Duration: 58 minutes
Period: 2026-06-09T05:31:38+00:00 to 2026-06-09T06:29:58+00:00
Vessel A Avg Speed: 0.2 knots
Vessel B Avg Speed: 0.1 knots
Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (ALTURA and VELORA) maintained close proximity (min 28m, avg 56m) for 58 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 28m, avg 56m
Duration	10/25	Duration 58 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±21m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Bosphorus/Dardanelles Approach

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 667001275,
        "imo": 9292199,
        "name": "ALTURA",
        "flag": "Sierra Leone"
    },
    "vessel_b": {
        "mmsi": 667001274,
        "imo": 9290373,
        "name": "VELORA",
        "flag": "Sierra Leone"
    },
    "min_distance_m": 27.60000000000000142108547152020037174224853515625,
    "avg_distance_m": 55.60000000000000142108547152020037174224853515625,
    "distance_consistency_m": 21.39999999999999857891452847979962825775146484375,
    "duration_minutes": 58.2999999999999971578290569595992565155029296875,
    "overlap_duration_s": 3500,
    "speed_a_avg": 0.1700000000000000122124532708767219446599483489990234375,
    "speed_a_std": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_b_avg": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_b_std": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1700000000000000122124532708767219446599483489990234375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0.1000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-06-09T05:31:38+00:00",
        "end": "2026-06-09T06:29:58+00:00"
    },
    "points_count": {
        "vessel_a": 21,
        "vessel_b": 21
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 28m, avg 56m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 58 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b121m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (ALTURA and VELORA) maintained close proximity (min 28m, avg 56m) for 58 minutes. Both vessels were slow-moving (avg speeds 0.2 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus\/Dardanelles Approach, a known STS activity area."
    }
}

Methodology: 2026.01.18

Sts Bosphorus/Dardanelles Approach

Jun 9, 2026 04:06 UTC 95/100 ▼

Vessel A: VELORA (VELORA) Sierra Leone

Vessel B: ALTURA (ALTURA) Sierra Leone

Minimum Distance: 42 meters
Average Distance: 49 meters
Duration: 2h 33m
Period: 2026-06-09T04:16:38+00:00 to 2026-06-09T06:49:50+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.1 knots
Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (VELORA and ALTURA) maintained close proximity (min 42m, avg 49m) for 153 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 42m, avg 49m
Duration	25/25	Duration 153 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±4m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Bosphorus/Dardanelles Approach

Show Raw Evidence JSON

{
    "vessel_a": {
        "mmsi": 667001274,
        "imo": 9290373,
        "name": "VELORA",
        "flag": "Sierra Leone"
    },
    "vessel_b": {
        "mmsi": 667001275,
        "imo": 9292199,
        "name": "ALTURA",
        "flag": "Sierra Leone"
    },
    "min_distance_m": 41.7000000000000028421709430404007434844970703125,
    "avg_distance_m": 48.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 4.5,
    "duration_minutes": 153.19999999999998863131622783839702606201171875,
    "overlap_duration_s": 9192,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_b_avg": 0.11999999999999999555910790149937383830547332763671875,
    "speed_b_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        },
        "vessel_b": {
            "avg_sog": 0.11999999999999999555910790149937383830547332763671875,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        }
    },
    "time_window": {
        "start": "2026-06-09T04:16:38+00:00",
        "end": "2026-06-09T06:49:50+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 42m, avg 49m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 153 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Bosphorus\/Dardanelles Approach"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (VELORA and ALTURA) maintained close proximity (min 42m, avg 49m) for 153 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus\/Dardanelles Approach, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Bosphorus/Dardanelles Approach

Jun 9, 2026 03:32 UTC 80.0% ▼

Zone: Bosphorus/Dardanelles Approach
Duration: 6h 2m
Data Points: 106 AIS positions
Period: 2026-06-09T03:32:28+00:00 to 2026-06-09T09:34:48+00:00

Show Raw Evidence JSON

{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 362.30000000000001136868377216160297393798828125,
    "points_in_zone": 106,
    "first_point": {
        "ts": "2026-06-09T03:32:28+00:00",
        "lat": 41.466059999999998808561940677464008331298828125,
        "lon": 28.713011699999999137844497454352676868438720703125
    },
    "last_point": {
        "ts": "2026-06-09T09:34:48+00:00",
        "lat": 41.46201169999999791571099194698035717010498046875,
        "lon": 28.710833300000000889440343598835170269012451171875
    }
}

Methodology: 2026.01.18

Loiter Bosphorus/Dardanelles Approach

Jun 9, 2026 03:32 UTC 75.0% ▼

Duration: 6h 2m
Radius: 385 meters
Data Points: 106 AIS positions
Centroid: 41.4628, 28.7115
Zone: Bosphorus/Dardanelles Approach

Show Raw Evidence JSON

{
    "radius_m": 385.1000000000000227373675443232059478759765625,
    "duration_minutes": 362.30000000000001136868377216160297393798828125,
    "points": 106,
    "centroid": {
        "lat": 41.46277790849058675348715041764080524444580078125,
        "lon": 28.711523179245290293692960403859615325927734375
    },
    "bbox": {
        "min_lat": 41.46116829999999708888935856521129608154296875,
        "min_lon": 28.7104183000000006131813279353082180023193359375,
        "max_lat": 41.466059999999998808561940677464008331298828125,
        "max_lon": 28.713011699999999137844497454352676868438720703125
    },
    "zone_id": "osint_bosphorus"
}

Methodology: 2026.01.18

Zone Dwell Bosphorus/Dardanelles Approach

Jun 9, 2026 02:00 UTC 80.0% ▼

Zone: Bosphorus/Dardanelles Approach
Duration: 6h 35m
Data Points: 106 AIS positions
Period: 2026-06-09T02:53:47+00:00 to 2026-06-09T09:29:39+00:00

Show Raw Evidence JSON

{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 395.8999999999999772626324556767940521240234375,
    "points_in_zone": 106,
    "first_point": {
        "ts": "2026-06-09T02:53:47+00:00",
        "lat": 41.46622500000000144382283906452357769012451171875,
        "lon": 28.71327169999999995297912391833961009979248046875
    },
    "last_point": {
        "ts": "2026-06-09T09:29:39+00:00",
        "lat": 41.4620383000000032325260690413415431976318359375,
        "lon": 28.71084499999999906094672041945159435272216796875
    }
}

Methodology: 2026.01.18

Loiter Bosphorus/Dardanelles Approach

Jun 9, 2026 02:00 UTC 75.0% ▼

Duration: 6h 35m
Radius: 400 meters
Data Points: 106 AIS positions
Centroid: 41.4629, 28.7116
Zone: Bosphorus/Dardanelles Approach

Show Raw Evidence JSON

{
    "radius_m": 400.19999999999998863131622783839702606201171875,
    "duration_minutes": 395.8999999999999772626324556767940521240234375,
    "points": 106,
    "centroid": {
        "lat": 41.46285702735850264843975310213863849639892578125,
        "lon": 28.711569092452837281825850368477404117584228515625
    },
    "bbox": {
        "min_lat": 41.46116829999999708888935856521129608154296875,
        "min_lon": 28.7104183000000006131813279353082180023193359375,
        "max_lat": 41.46622500000000144382283906452357769012451171875,
        "max_lon": 28.71327169999999995297912391833961009979248046875
    },
    "zone_id": "osint_bosphorus"
}

Methodology: 2026.01.18

Zone Dwell Bosphorus/Dardanelles Approach

Jun 9, 2026 01:00 UTC 80.0% ▼

Zone: Bosphorus/Dardanelles Approach
Duration: 6h 32m
Data Points: 107 AIS positions
Period: 2026-06-09T01:55:48+00:00 to 2026-06-09T08:28:18+00:00

Show Raw Evidence JSON

{
    "zone_id": "osint_bosphorus",
    "zone_name": "Bosphorus\/Dardanelles Approach",
    "dwell_minutes": 392.5,
    "points_in_zone": 107,
    "first_point": {
        "ts": "2026-06-09T01:55:48+00:00",
        "lat": 41.46614670000000302252374240197241306304931640625,
        "lon": 28.713100000000000733280103304423391819000244140625
    },
    "last_point": {
        "ts": "2026-06-09T08:28:18+00:00",
        "lat": 41.4617999999999966576069709844887256622314453125,
        "lon": 28.71121670000000136724338517524302005767822265625
    }
}

Methodology: 2026.01.18

Loiter Bosphorus/Dardanelles Approach

Jun 9, 2026 01:00 UTC 75.0% ▼

Duration: 6h 32m
Radius: 313 meters
Data Points: 107 AIS positions
Centroid: 41.4636, 28.7120
Zone: Bosphorus/Dardanelles Approach

Show Raw Evidence JSON

{
    "radius_m": 312.6000000000000227373675443232059478759765625,
    "duration_minutes": 392.5,
    "points": 107,
    "centroid": {
        "lat": 41.463578070093461747092078439891338348388671875,
        "lon": 28.712000766355163960952268098480999469757080078125
    },
    "bbox": {
        "min_lat": 41.46116829999999708888935856521129608154296875,
        "min_lon": 28.7104183000000006131813279353082180023193359375,
        "max_lat": 41.46622500000000144382283906452357769012451171875,
        "max_lon": 28.71349500000000176669345819391310214996337890625
    },
    "zone_id": "osint_bosphorus"
}

Methodology: 2026.01.18

Sts🛰️? Bosphorus/Dardanelles Approach

Jun 9, 2026 00:52 UTC 95/100 ▼

Vessel A: VELORA (VELORA) Sierra Leone

Vessel B: ALTURA (ALTURA) Sierra Leone

Minimum Distance: 42 meters
Average Distance: 49 meters
Duration: 5h 57m
Period: 2026-06-09T00:52:33+00:00 to 2026-06-09T06:49:50+00:00
Vessel A Avg Speed: 0.1 knots
Vessel B Avg Speed: 0.1 knots
Zone: Bosphorus/Dardanelles Approach

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (VELORA and ALTURA) maintained close proximity (min 42m, avg 49m) for 357 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.1 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Bosphorus/Dardanelles Approach, a known STS activity area.

View scoring breakdown

Factor	Score	Detail
Distance Tightness	25/25	Min distance 42m, avg 49m
Duration	25/25	Duration 357 minutes
Speed Stability	20/20	both nearly stationary; very stable speeds
Distance Consistency	15/15	Distance variance ±4m
Isolation	5/10	Isolation data not available
Context	5/5	In monitored zone: Bosphorus/Dardanelles Approach

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1D_IW_GRDH_1SDV_20260609T040522_20260609T040547_003154_0057B6_9317_COG • Acquired: 2026-06-09T04:05:22.864988Z • Platform: sentinel-1d

Click image to view full size

Time (UTC)	Lat	Lon	Speed	Course	Zone
Jun 9 09:43	41.4620	28.7108	0.0 kn	353.6°	Bosphorus/Dardanelles Approach
Jun 9 09:40	41.4620	28.7108	0.0 kn	353.6°	Bosphorus/Dardanelles Approach
Jun 9 09:34	41.4620	28.7108	0.0 kn	353.6°	Bosphorus/Dardanelles Approach
Jun 9 09:32	41.4620	28.7108	0.0 kn	353.6°	Bosphorus/Dardanelles Approach
Jun 9 09:29	41.4620	28.7108	0.0 kn	353.6°	Bosphorus/Dardanelles Approach
Jun 9 09:26	41.4621	28.7108	0.0 kn	353.6°	Bosphorus/Dardanelles Approach
Jun 9 09:22	41.4621	28.7108	0.0 kn	353.6°	Bosphorus/Dardanelles Approach
Jun 9 09:19	41.4621	28.7108	0.0 kn	353.6°	Bosphorus/Dardanelles Approach
Jun 9 09:17	41.4621	28.7108	0.0 kn	353.6°	Bosphorus/Dardanelles Approach
Jun 9 09:13	41.4621	28.7108	0.0 kn	336.0°	Bosphorus/Dardanelles Approach
Jun 9 09:08	41.4620	28.7108	0.0 kn	319.9°	Bosphorus/Dardanelles Approach
Jun 9 09:06	41.4620	28.7108	0.0 kn	319.9°	Bosphorus/Dardanelles Approach
Jun 9 09:01	41.4620	28.7109	0.0 kn	319.9°	Bosphorus/Dardanelles Approach
Jun 9 08:57	41.4620	28.7109	0.0 kn	319.9°	Bosphorus/Dardanelles Approach
Jun 9 08:55	41.4620	28.7109	0.0 kn	319.9°	Bosphorus/Dardanelles Approach
Jun 9 08:52	41.4620	28.7110	0.0 kn	319.9°	Bosphorus/Dardanelles Approach
Jun 9 08:48	41.4620	28.7110	0.0 kn	319.9°	Bosphorus/Dardanelles Approach
Jun 9 08:42	41.4619	28.7110	0.0 kn	319.9°	Bosphorus/Dardanelles Approach
Jun 9 08:39	41.4619	28.7110	0.1 kn	312.2°	Bosphorus/Dardanelles Approach
Jun 9 08:36	41.4619	28.7111	0.1 kn	306.2°	Bosphorus/Dardanelles Approach

ALTURA

IMO 9292199

Vessel information

Sanction Status

Detected Events (100)

Confidence Analysis

🛰️ Satellite Corroboration

Confidence Analysis

Confidence Analysis

Confidence Analysis

🛰️ Satellite Corroboration

Recent Position Data

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