Marble

IMO 9323974

Vessel information

Vessel Name Marble View name history 📜
IMO Number 9323974
MMSI 511101787
Vessel Type Oil Tanker | Navire-citerne pour produits pétroliers
Flag 🇨🇲 Cameroon View flag history 📜
Call Sign T8A5276
Gross Tonnage 56,285 GT
Year Built 2006

Sanctioned by

🇪🇺 EU 2025-07-20🇬🇧 UK 2025-05-09🇨🇦 CA 2026-02-19

Company & Ownership

🏢
Sunflower Marine Inc
IMO Company: 6441220
Address Suite 212, 2nd Floor, Block A, Unity House, Victoria, Mahe Island, Seychelles.
Status Active
Fleet 1.0 owner, 1.0 operator, 1.0 manager, 0.0 beneficial

Management & Operations

ISM Manager
YI CHUN HE SHIPMANAGEMENT
Room 1201, Shangfeng Lu, Gutang Lu, Pudong Xinqu, Shanghai, 200000, China.
Commercial Manager
SUNFLOWER MARINE INC
Suite 212, 2nd Floor, Block A, Unity House, Victoria, Mahe Island, Seychelles.
Registered Owner
SUNFLOWER MARINE INC
Suite 212, 2nd Floor, Block A, Unity House, Victoria, Mahe Island, Seychelles.

Classification & Safety

Current Classification
Med Lloyd Classification Delivered

Port State Control (PSC) Inspections

⚠️
Risk Level
LOW
Last 36 Months
1
Inspections
Last Inspection
📍 Constanta
📅 2023-10-06

Survey Renewal & Certificates

Code Type Issuer Issued Expires
501 Cargo Ship Safety Construction RINA Services S.p.A. (186) 30/03/2022 13/11/2026
503 Cargo Ship Safety Radio RINA 30/03/2022 13/11/2026

Programs & Notes

EU Russia Sanctions – Shadow Fleet | SEMA (Canada) — vessel designations | The Russia (Sanctions) (EU Exit) Regulations 2019

DateOfListing: 2025-07-20 || DateDesignated: 2025-05-09 | Shipping sanctions: (see “Other information”) | Shipping sanctions: a specified ship is prohibited from being provided with access to or having its master or pilot cause it to enter a port in the UK, may have its registration on the UK Ship Register terminated, and a master or pilot of a specified ship may be given a port barring direction, a detention direction, and a port entry direction or a movement direction. | IMO 9323974 (MARBLE) is involved in activity whose object or effect is to destabilise Ukraine or undermine or threaten the territorial integrity, sovereignty or independence of Ukraine or to obtain a benefit from or support the Government of Russia. Namely, MARBLE is involved in carrying oil or oil products that originated in Russia from Russia to a third country.

Vessel Changes

11 changes

AIS Events

50 events detected • 1 zone • Last: May 29, 2026

Sts🛰️✗ Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 22:02 UTC 75/100
Vessel A: SILVER ICE (SINAR G) Cameroon
Vessel B: Marble (MARBLE) CAMEROON
  • Minimum Distance: 43 meters
  • Average Distance: 45 meters
  • Duration: 44 minutes
  • Period: 2026-05-29T22:02:55+00:00 to 2026-05-29T22:46:57+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (SINAR G and MARBLE) maintained close proximity (min 43m, avg 45m) for 44 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 43m, avg 45m
Duration5/25Duration 44 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-30T05:00:04.686241+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613271812,
        "imo": 9323364,
        "name": "SINAR G",
        "flag": "Cameroon"
    },
    "vessel_b": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "min_distance_m": 42.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 45.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 2,
    "duration_minutes": 44,
    "overlap_duration_s": 2642,
    "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": "2026-05-29T22:02:55+00:00",
        "end": "2026-05-29T22:46:57+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 43m, avg 45m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 44 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: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (SINAR G and MARBLE) maintained close proximity (min 43m, avg 45m) for 44 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.539858599999998745033735758624970912933349609375,
            "lon": 32.33103870000000057416400522924959659576416015625
        },
        "time_window": {
            "start_ts": "2026-05-29T22:02:55+00:00",
            "end_ts": "2026-05-29T22:46:57+00:00"
        },
        "searched_at": "2026-05-30T05:00:04.686241+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Sts Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 21:56 UTC 80/100
Vessel A: SILVER ICE (SINAR G) Cameroon
Vessel B: Marble (MARBLE) CAMEROON
  • Minimum Distance: 43 meters
  • Average Distance: 45 meters
  • Duration: 50 minutes
  • Period: 2026-05-29T21:56:58+00:00 to 2026-05-29T22:46:57+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (SINAR G and MARBLE) maintained close proximity (min 43m, avg 45m) for 50 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 43m, avg 45m
Duration10/25Duration 50 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613271812,
        "imo": 9323364,
        "name": "SINAR G",
        "flag": "Cameroon"
    },
    "vessel_b": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "min_distance_m": 42.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 45.10000000000000142108547152020037174224853515625,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 50,
    "overlap_duration_s": 2999,
    "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": "2026-05-29T21:56:58+00:00",
        "end": "2026-05-29T22:46:57+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 43m, avg 45m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 50 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: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (SINAR G and MARBLE) maintained close proximity (min 43m, avg 45m) for 50 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 21:47 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 1h 5m
  • Data Points: 21 AIS positions
  • Period: 2026-05-29T21:47:19+00:00 to 2026-05-29T22:52:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 65.2999999999999971578290569595992565155029296875,
    "points_in_zone": 21,
    "first_point": {
        "ts": "2026-05-29T21:47:19+00:00",
        "lat": 31.5396266999999994595782482065260410308837890625,
        "lon": 32.3310282999999998310158844105899333953857421875
    },
    "last_point": {
        "ts": "2026-05-29T22:52:40+00:00",
        "lat": 31.539591699999999008241502451710402965545654296875,
        "lon": 32.330991699999998445491655729711055755615234375
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 20:16 UTC 95/100
Vessel A: Marble (MARBLE) CAMEROON
Vessel B: SILVER ICE (SINAR G) Cameroon
  • Minimum Distance: 42 meters
  • Average Distance: 45 meters
  • Duration: 2h 35m
  • Period: 2026-05-29T20:16:49+00:00 to 2026-05-29T22:52:40+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (MARBLE and SINAR G) maintained close proximity (min 42m, avg 45m) for 156 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 42m, avg 45m
Duration25/25Duration 156 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-29T23:15:08.628340+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 613271812,
        "imo": 9323364,
        "name": "SINAR G",
        "flag": "Cameroon"
    },
    "min_distance_m": 42,
    "avg_distance_m": 45.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 155.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 9351,
    "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": "2026-05-29T20:16:49+00:00",
        "end": "2026-05-29T22:52:40+00:00"
    },
    "points_count": {
        "vessel_a": 26,
        "vessel_b": 26
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 42m, avg 45m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 156 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: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MARBLE and SINAR G) maintained close proximity (min 42m, avg 45m) for 156 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.5398201000000000249201548285782337188720703125,
            "lon": 32.331014199999998481871443800628185272216796875
        },
        "time_window": {
            "start_ts": "2026-05-29T20:16:49+00:00",
            "end_ts": "2026-05-29T22:52:40+00:00"
        },
        "searched_at": "2026-05-29T23:15:08.628340+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 20:01 UTC 75.0%
  • Duration: 2h 51m
  • Radius: 31 meters
  • Data Points: 27 AIS positions
  • Centroid: 31.5396, 32.3310
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 31,
    "duration_minutes": 171.099999999999994315658113919198513031005859375,
    "points": 27,
    "centroid": {
        "lat": 31.539607640740744187723976210691034793853759765625,
        "lon": 32.330996725925928103606565855443477630615234375
    },
    "bbox": {
        "min_lat": 31.539378299999999200053935055620968341827392578125,
        "min_lon": 32.3308099999999996043698047287762165069580078125,
        "max_lat": 31.539708300000000917862053029239177703857421875,
        "max_lon": 32.331068299999998316707205958664417266845703125
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 20:01 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 2h 51m
  • Data Points: 27 AIS positions
  • Period: 2026-05-29T20:01:33+00:00 to 2026-05-29T22:52:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 171.099999999999994315658113919198513031005859375,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-05-29T20:01:33+00:00",
        "lat": 31.539378299999999200053935055620968341827392578125,
        "lon": 32.3308099999999996043698047287762165069580078125
    },
    "last_point": {
        "ts": "2026-05-29T22:52:40+00:00",
        "lat": 31.539591699999999008241502451710402965545654296875,
        "lon": 32.330991699999998445491655729711055755615234375
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 19:03 UTC 90/100
Vessel A: SILVER ICE (SINAR G) Cameroon
Vessel B: Marble (MARBLE) CAMEROON
  • Minimum Distance: 42 meters
  • Average Distance: 44 meters
  • Duration: 1h 53m
  • Period: 2026-05-29T19:03:09+00:00 to 2026-05-29T20:57:01+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (SINAR G and MARBLE) maintained close proximity (min 42m, avg 44m) for 114 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 42m, avg 44m
Duration20/25Duration 114 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-30T02:00:02.338540+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613271812,
        "imo": 9323364,
        "name": "SINAR G",
        "flag": "Cameroon"
    },
    "vessel_b": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "min_distance_m": 42,
    "avg_distance_m": 44,
    "distance_consistency_m": 1.5,
    "duration_minutes": 113.900000000000005684341886080801486968994140625,
    "overlap_duration_s": 6832,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-05-29T19:03:09+00:00",
        "end": "2026-05-29T20:57:01+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 42m, avg 44m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 114 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: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (SINAR G and MARBLE) maintained close proximity (min 42m, avg 44m) for 114 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.539649900000000570798874832689762115478515625,
            "lon": 32.3308976000000001249645720236003398895263671875
        },
        "time_window": {
            "start_ts": "2026-05-29T19:03:09+00:00",
            "end_ts": "2026-05-29T20:57:01+00:00"
        },
        "searched_at": "2026-05-30T02:00:02.338540+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 19:01 UTC 75.0%
  • Duration: 3h 50m
  • Radius: 26 meters
  • Data Points: 38 AIS positions
  • Centroid: 31.5395, 32.3309
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 25.60000000000000142108547152020037174224853515625,
    "duration_minutes": 230.69999999999998863131622783839702606201171875,
    "points": 38,
    "centroid": {
        "lat": 31.539547049999999472902345587499439716339111328125,
        "lon": 32.33094679736841925432599964551627635955810546875
    },
    "bbox": {
        "min_lat": 31.539363300000001544276528875343501567840576171875,
        "min_lon": 32.33078330000000022437234292738139629364013671875,
        "max_lat": 31.539708300000000917862053029239177703857421875,
        "max_lon": 32.331068299999998316707205958664417266845703125
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 19:01 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 3h 50m
  • Data Points: 38 AIS positions
  • Period: 2026-05-29T19:01:58+00:00 to 2026-05-29T22:52:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 230.69999999999998863131622783839702606201171875,
    "points_in_zone": 38,
    "first_point": {
        "ts": "2026-05-29T19:01:58+00:00",
        "lat": 31.539363300000001544276528875343501567840576171875,
        "lon": 32.33078330000000022437234292738139629364013671875
    },
    "last_point": {
        "ts": "2026-05-29T22:52:40+00:00",
        "lat": 31.539591699999999008241502451710402965545654296875,
        "lon": 32.330991699999998445491655729711055755615234375
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 18:03 UTC 95/100
Vessel A: SILVER ICE (SINAR G) Cameroon
Vessel B: Marble (MARBLE) CAMEROON
  • Minimum Distance: 40 meters
  • Average Distance: 43 meters
  • Duration: 2h 53m
  • Period: 2026-05-29T18:03:10+00:00 to 2026-05-29T20:57:01+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (SINAR G and MARBLE) maintained close proximity (min 40m, avg 43m) for 174 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 40m, avg 43m
Duration25/25Duration 174 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-30T01:00:07.795396+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613271812,
        "imo": 9323364,
        "name": "SINAR G",
        "flag": "Cameroon"
    },
    "vessel_b": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "min_distance_m": 40.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 43.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 173.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 10431,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-05-29T18:03:10+00:00",
        "end": "2026-05-29T20:57:01+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 40m, avg 43m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 174 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: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (SINAR G and MARBLE) maintained close proximity (min 40m, avg 43m) for 174 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.539594699999998539396983687765896320343017578125,
            "lon": 32.33086080000000350764821632765233516693115234375
        },
        "time_window": {
            "start_ts": "2026-05-29T18:03:10+00:00",
            "end_ts": "2026-05-29T20:57:01+00:00"
        },
        "searched_at": "2026-05-30T01:00:07.795396+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 18:00 UTC 75.0%
  • Duration: 4h 52m
  • Radius: 35 meters
  • Data Points: 54 AIS positions
  • Centroid: 31.5395, 32.3309
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 35,
    "duration_minutes": 292.3999999999999772626324556767940521240234375,
    "points": 54,
    "centroid": {
        "lat": 31.539485083333335779798289877362549304962158203125,
        "lon": 32.3308943833333302109167561866343021392822265625
    },
    "bbox": {
        "min_lat": 31.539235000000001463149601477198302745819091796875,
        "min_lon": 32.33066999999999779902282170951366424560546875,
        "max_lat": 31.539708300000000917862053029239177703857421875,
        "max_lon": 32.331068299999998316707205958664417266845703125
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 18:00 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 4h 52m
  • Data Points: 54 AIS positions
  • Period: 2026-05-29T18:00:16+00:00 to 2026-05-29T22:52:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 292.3999999999999772626324556767940521240234375,
    "points_in_zone": 54,
    "first_point": {
        "ts": "2026-05-29T18:00:16+00:00",
        "lat": 31.53924500000000108457243186421692371368408203125,
        "lon": 32.33067170000000345453372574411332607269287109375
    },
    "last_point": {
        "ts": "2026-05-29T22:52:40+00:00",
        "lat": 31.539591699999999008241502451710402965545654296875,
        "lon": 32.330991699999998445491655729711055755615234375
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 17:00 UTC 75.0%
  • Duration: 5h 52m
  • Radius: 38 meters
  • Data Points: 71 AIS positions
  • Centroid: 31.5394, 32.3308
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 38.10000000000000142108547152020037174224853515625,
    "duration_minutes": 352.19999999999998863131622783839702606201171875,
    "points": 71,
    "centroid": {
        "lat": 31.53942585915493879156201728619635105133056640625,
        "lon": 32.33084026197183646900157327763736248016357421875
    },
    "bbox": {
        "min_lat": 31.53918829999999928759280010126531124114990234375,
        "min_lon": 32.3305782999999991034201229922473430633544921875,
        "max_lat": 31.539708300000000917862053029239177703857421875,
        "max_lon": 32.331068299999998316707205958664417266845703125
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 17:00 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 5h 52m
  • Data Points: 71 AIS positions
  • Period: 2026-05-29T17:00:29+00:00 to 2026-05-29T22:52:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 352.19999999999998863131622783839702606201171875,
    "points_in_zone": 71,
    "first_point": {
        "ts": "2026-05-29T17:00:29+00:00",
        "lat": 31.5392149999999986675902619026601314544677734375,
        "lon": 32.33065500000000014324541552923619747161865234375
    },
    "last_point": {
        "ts": "2026-05-29T22:52:40+00:00",
        "lat": 31.539591699999999008241502451710402965545654296875,
        "lon": 32.330991699999998445491655729711055755615234375
    }
}

Methodology: 2026.01.18

Sts Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 17:00 UTC 95/100
Vessel A: SILVER ICE (SINAR G) Cameroon
Vessel B: Marble (MARBLE) CAMEROON
  • Minimum Distance: 40 meters
  • Average Distance: 43 meters
  • Duration: 3h 47m
  • Period: 2026-05-29T17:09:10+00:00 to 2026-05-29T20:57:01+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (SINAR G and MARBLE) maintained close proximity (min 40m, avg 43m) for 228 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 40m, avg 43m
Duration25/25Duration 228 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613271812,
        "imo": 9323364,
        "name": "SINAR G",
        "flag": "Cameroon"
    },
    "vessel_b": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "min_distance_m": 40.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 43.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 1.6999999999999999555910790149937383830547332763671875,
    "duration_minutes": 227.80000000000001136868377216160297393798828125,
    "overlap_duration_s": 13671,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-05-29T17:09:10+00:00",
        "end": "2026-05-29T20:57:01+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 40m, avg 43m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 228 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: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (SINAR G and MARBLE) maintained close proximity (min 40m, avg 43m) for 228 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Sts Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 16:56 UTC 95/100
Vessel A: SILVER ICE (SINAR G) Cameroon
Vessel B: Marble (MARBLE) CAMEROON
  • Minimum Distance: 40 meters
  • Average Distance: 44 meters
  • Duration: 4 hours
  • Period: 2026-05-29T16:56:54+00:00 to 2026-05-29T20:57:01+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (SINAR G and MARBLE) maintained close proximity (min 40m, avg 44m) for 240 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 40m, avg 44m
Duration25/25Duration 240 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613271812,
        "imo": 9323364,
        "name": "SINAR G",
        "flag": "Cameroon"
    },
    "vessel_b": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "min_distance_m": 40.2000000000000028421709430404007434844970703125,
    "avg_distance_m": 43.5,
    "distance_consistency_m": 1.6999999999999999555910790149937383830547332763671875,
    "duration_minutes": 240.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 14407,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-05-29T16:56:54+00:00",
        "end": "2026-05-29T20:57:01+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 40m, avg 44m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 240 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (SINAR G and MARBLE) maintained close proximity (min 40m, avg 44m) for 240 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 16:37 UTC 75.0%
  • Duration: 6h 15m
  • Radius: 40 meters
  • Data Points: 77 AIS positions
  • Centroid: 31.5394, 32.3308
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 39.7000000000000028421709430404007434844970703125,
    "duration_minutes": 375.30000000000001136868377216160297393798828125,
    "points": 77,
    "centroid": {
        "lat": 31.53941367142858354100098949857056140899658203125,
        "lon": 32.330830111688328543095849454402923583984375
    },
    "bbox": {
        "min_lat": 31.53918829999999928759280010126531124114990234375,
        "min_lon": 32.3305782999999991034201229922473430633544921875,
        "max_lat": 31.539708300000000917862053029239177703857421875,
        "max_lon": 32.331068299999998316707205958664417266845703125
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 29, 2026 16:37 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 6h 15m
  • Data Points: 77 AIS positions
  • Period: 2026-05-29T16:37:20+00:00 to 2026-05-29T22:52:40+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 375.30000000000001136868377216160297393798828125,
    "points_in_zone": 77,
    "first_point": {
        "ts": "2026-05-29T16:37:20+00:00",
        "lat": 31.539320000000000021600499167107045650482177734375,
        "lon": 32.3307582999999993944584275595843791961669921875
    },
    "last_point": {
        "ts": "2026-05-29T22:52:40+00:00",
        "lat": 31.539591699999999008241502451710402965545654296875,
        "lon": 32.330991699999998445491655729711055755615234375
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 23:02 UTC 75/100
Vessel A: Marble (MARBLE) CAMEROON
Vessel B: Rhein (RHEIN) CAMEROON
  • Minimum Distance: 17 meters
  • Average Distance: 26 meters
  • Duration: 33 minutes
  • Period: 2026-05-19T23:05:39+00:00 to 2026-05-19T23:38:39+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 17m, avg 26m) 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 17m, avg 26m
Duration5/25Duration 33 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-20T06:00:05.472526+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 613271814,
        "imo": 9306562,
        "name": "RHEIN",
        "flag": "CAMEROON"
    },
    "min_distance_m": 16.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 26.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 5.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 33,
    "overlap_duration_s": 1980,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.08000000000000000166533453693773481063544750213623046875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-05-19T23:05:39+00:00",
        "end": "2026-05-19T23:38:39+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 17m, avg 26m"
            },
            "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 \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 17m, avg 26m) 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.513342200000000303816705127246677875518798828125,
            "lon": 32.40777560000000079298843047581613063812255859375
        },
        "time_window": {
            "start_ts": "2026-05-19T23:02:43+00:00",
            "end_ts": "2026-05-19T23:38:39+00:00"
        },
        "searched_at": "2026-05-20T06:00:05.472526+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 22:17 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 1h 21m
  • Data Points: 15 AIS positions
  • Period: 2026-05-19T22:17:42+00:00 to 2026-05-19T23:38:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 81,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-05-19T22:17:42+00:00",
        "lat": 31.51297170000000136269591166637837886810302734375,
        "lon": 32.4071933000000029778675525449216365814208984375
    },
    "last_point": {
        "ts": "2026-05-19T23:38:39+00:00",
        "lat": 31.5134766999999982317604008130729198455810546875,
        "lon": 32.4078166999999979225322022102773189544677734375
    }
}

Methodology: 2026.01.18

Sts Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 22:12 UTC 80/100
Vessel A: Marble (MARBLE) CAMEROON
Vessel B: Rhein (RHEIN) CAMEROON
  • Minimum Distance: 17 meters
  • Average Distance: 25 meters
  • Duration: 50 minutes
  • Period: 2026-05-19T22:47:44+00:00 to 2026-05-19T23:38:39+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 17m, avg 25m) 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 17m, avg 25m
Duration10/25Duration 51 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±5m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 613271814,
        "imo": 9306562,
        "name": "RHEIN",
        "flag": "CAMEROON"
    },
    "min_distance_m": 16.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 25.39999999999999857891452847979962825775146484375,
    "distance_consistency_m": 5.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 50.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 3055,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-05-19T22:47:44+00:00",
        "end": "2026-05-19T23:38:39+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 17m, avg 25m"
            },
            "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 \u00b15m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 17m, avg 25m) 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 21:05 UTC 75.0%
  • Duration: 2h 33m
  • Radius: 75 meters
  • Data Points: 17 AIS positions
  • Centroid: 31.5131, 32.4074
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 75,
    "duration_minutes": 153,
    "points": 17,
    "centroid": {
        "lat": 31.513103435294116394516095169819891452789306640625,
        "lon": 32.40743068235294543910640641115605831146240234375
    },
    "bbox": {
        "min_lat": 31.51269500000000078898665378801524639129638671875,
        "min_lon": 32.4068017000000025973349693231284618377685546875,
        "max_lat": 31.5134766999999982317604008130729198455810546875,
        "max_lon": 32.4078166999999979225322022102773189544677734375
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 21:05 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 2h 33m
  • Data Points: 17 AIS positions
  • Period: 2026-05-19T21:05:41+00:00 to 2026-05-19T23:38:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 153,
    "points_in_zone": 17,
    "first_point": {
        "ts": "2026-05-19T21:05:41+00:00",
        "lat": 31.51269500000000078898665378801524639129638671875,
        "lon": 32.4068017000000025973349693231284618377685546875
    },
    "last_point": {
        "ts": "2026-05-19T23:38:39+00:00",
        "lat": 31.5134766999999982317604008130729198455810546875,
        "lon": 32.4078166999999979225322022102773189544677734375
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 20:17 UTC 75.0%
  • Duration: 3h 20m
  • Radius: 69 meters
  • Data Points: 19 AIS positions
  • Centroid: 31.5131, 32.4074
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 69.400000000000005684341886080801486968994140625,
    "duration_minutes": 200.900000000000005684341886080801486968994140625,
    "points": 19,
    "centroid": {
        "lat": 31.513066931578944007696918561123311519622802734375,
        "lon": 32.4073607894736852585992892272770404815673828125
    },
    "bbox": {
        "min_lat": 31.51269500000000078898665378801524639129638671875,
        "min_lon": 32.4067117000000024518158170394599437713623046875,
        "max_lat": 31.5134766999999982317604008130729198455810546875,
        "max_lon": 32.4078166999999979225322022102773189544677734375
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 20:17 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 3h 20m
  • Data Points: 19 AIS positions
  • Period: 2026-05-19T20:17:43+00:00 to 2026-05-19T23:38:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 200.900000000000005684341886080801486968994140625,
    "points_in_zone": 19,
    "first_point": {
        "ts": "2026-05-19T20:17:43+00:00",
        "lat": 31.51277999999999934743755147792398929595947265625,
        "lon": 32.4067117000000024518158170394599437713623046875
    },
    "last_point": {
        "ts": "2026-05-19T23:38:39+00:00",
        "lat": 31.5134766999999982317604008130729198455810546875,
        "lon": 32.4078166999999979225322022102773189544677734375
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 19:05 UTC 75.0%
  • Duration: 4h 33m
  • Radius: 94 meters
  • Data Points: 29 AIS positions
  • Centroid: 31.5129, 32.4071
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 93.7000000000000028421709430404007434844970703125,
    "duration_minutes": 273,
    "points": 29,
    "centroid": {
        "lat": 31.512944999999991324557413463480770587921142578125,
        "lon": 32.4070500034482762430343427695333957672119140625
    },
    "bbox": {
        "min_lat": 31.51263000000000147338141687214374542236328125,
        "min_lon": 32.4062966999999986228431225754320621490478515625,
        "max_lat": 31.5134766999999982317604008130729198455810546875,
        "max_lon": 32.4078166999999979225322022102773189544677734375
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 19:05 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 4h 33m
  • Data Points: 29 AIS positions
  • Period: 2026-05-19T19:05:39+00:00 to 2026-05-19T23:38:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 273,
    "points_in_zone": 29,
    "first_point": {
        "ts": "2026-05-19T19:05:39+00:00",
        "lat": 31.51263000000000147338141687214374542236328125,
        "lon": 32.4066116999999991321601555682718753814697265625
    },
    "last_point": {
        "ts": "2026-05-19T23:38:39+00:00",
        "lat": 31.5134766999999982317604008130729198455810546875,
        "lon": 32.4078166999999979225322022102773189544677734375
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 19:05 UTC 95/100
Vessel A: Marble (MARBLE) CAMEROON
Vessel B: Rhein (RHEIN) CAMEROON
  • Minimum Distance: 17 meters
  • Average Distance: 28 meters
  • Duration: 4h 33m
  • Period: 2026-05-19T19:05:39+00:00 to 2026-05-19T23:38:39+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 17m, avg 28m) for 273 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 17m, avg 28m
Duration25/25Duration 273 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-20T01:45:01.574781+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 613271814,
        "imo": 9306562,
        "name": "RHEIN",
        "flag": "CAMEROON"
    },
    "min_distance_m": 16.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 28.300000000000000710542735760100185871124267578125,
    "distance_consistency_m": 4.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 273,
    "overlap_duration_s": 16380,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-05-19T19:05:39+00:00",
        "end": "2026-05-19T23:38:39+00:00"
    },
    "points_count": {
        "vessel_a": 29,
        "vessel_b": 29
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 17m, avg 28m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 273 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: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 17m, avg 28m) for 273 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.512996099999998733665051986463367938995361328125,
            "lon": 32.40717930000000279733285424299538135528564453125
        },
        "time_window": {
            "start_ts": "2026-05-19T19:05:39+00:00",
            "end_ts": "2026-05-19T23:38:39+00:00"
        },
        "searched_at": "2026-05-20T01:45:01.574781+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 18:05 UTC 95/100
Vessel A: Marble (MARBLE) CAMEROON
Vessel B: Rhein (RHEIN) CAMEROON
  • Minimum Distance: 17 meters
  • Average Distance: 29 meters
  • Duration: 5h 12m
  • Period: 2026-05-19T18:26:41+00:00 to 2026-05-19T23:38:39+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 17m, avg 29m) for 312 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 17m, avg 29m
Duration25/25Duration 312 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-20T01:00:05.196172+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 613271814,
        "imo": 9306562,
        "name": "RHEIN",
        "flag": "CAMEROON"
    },
    "min_distance_m": 16.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 28.699999999999999289457264239899814128875732421875,
    "distance_consistency_m": 4.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 312,
    "overlap_duration_s": 18718,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-05-19T18:26:41+00:00",
        "end": "2026-05-19T23:38:39+00:00"
    },
    "points_count": {
        "vessel_a": 34,
        "vessel_b": 34
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 17m, avg 29m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 312 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: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 17m, avg 29m) for 312 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.512752400000000108093445305712521076202392578125,
            "lon": 32.40671689999999927067619864828884601593017578125
        },
        "time_window": {
            "start_ts": "2026-05-19T18:05:51+00:00",
            "end_ts": "2026-05-19T23:38:39+00:00"
        },
        "searched_at": "2026-05-20T01:00:05.196172+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 18:05 UTC 75.0%
  • Duration: 5h 33m
  • Radius: 104 meters
  • Data Points: 36 AIS positions
  • Centroid: 31.5129, 32.4070
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 103.900000000000005684341886080801486968994140625,
    "duration_minutes": 333,
    "points": 36,
    "centroid": {
        "lat": 31.51290060277778337649579043500125408172607421875,
        "lon": 32.40695351666666823575724265538156032562255859375
    },
    "bbox": {
        "min_lat": 31.51263000000000147338141687214374542236328125,
        "min_lon": 32.4062966999999986228431225754320621490478515625,
        "max_lat": 31.5134766999999982317604008130729198455810546875,
        "max_lon": 32.4078166999999979225322022102773189544677734375
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 18:05 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 5h 33m
  • Data Points: 36 AIS positions
  • Period: 2026-05-19T18:05:39+00:00 to 2026-05-19T23:38:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 333,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-05-19T18:05:39+00:00",
        "lat": 31.512731699999999790406945976428687572479248046875,
        "lon": 32.40683829999999687743184040300548076629638671875
    },
    "last_point": {
        "ts": "2026-05-19T23:38:39+00:00",
        "lat": 31.5134766999999982317604008130729198455810546875,
        "lon": 32.4078166999999979225322022102773189544677734375
    }
}

Methodology: 2026.01.18

Sts Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 17:15 UTC 95/100
Vessel A: Marble (MARBLE) CAMEROON
Vessel B: Rhein (RHEIN) CAMEROON
  • Minimum Distance: 17 meters
  • Average Distance: 29 meters
  • Duration: 6h 11m
  • Period: 2026-05-19T17:26:42+00:00 to 2026-05-19T23:38:39+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 17m, avg 29m) for 372 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 17m, avg 29m
Duration25/25Duration 372 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 613271814,
        "imo": 9306562,
        "name": "RHEIN",
        "flag": "CAMEROON"
    },
    "min_distance_m": 16.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 28.89999999999999857891452847979962825775146484375,
    "distance_consistency_m": 3.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 371.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 22317,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-05-19T17:26:42+00:00",
        "end": "2026-05-19T23:38:39+00:00"
    },
    "points_count": {
        "vessel_a": 42,
        "vessel_b": 42
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 17m, avg 29m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 372 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: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 17m, avg 29m) for 372 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 17:14 UTC 75.0%
  • Duration: 6h 24m
  • Radius: 105 meters
  • Data Points: 44 AIS positions
  • Centroid: 31.5129, 32.4070
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 105.099999999999994315658113919198513031005859375,
    "duration_minutes": 384,
    "points": 44,
    "centroid": {
        "lat": 31.51288269090908755742930225096642971038818359375,
        "lon": 32.40695462045454888766471412964165210723876953125
    },
    "bbox": {
        "min_lat": 31.51263000000000147338141687214374542236328125,
        "min_lon": 32.4062966999999986228431225754320621490478515625,
        "max_lat": 31.5134766999999982317604008130729198455810546875,
        "max_lon": 32.4078166999999979225322022102773189544677734375
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 17:14 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 6h 24m
  • Data Points: 44 AIS positions
  • Period: 2026-05-19T17:14:41+00:00 to 2026-05-19T23:38:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 384,
    "points_in_zone": 44,
    "first_point": {
        "ts": "2026-05-19T17:14:41+00:00",
        "lat": 31.512865000000001458602127968333661556243896484375,
        "lon": 32.407015000000001236912794411182403564453125
    },
    "last_point": {
        "ts": "2026-05-19T23:38:39+00:00",
        "lat": 31.5134766999999982317604008130729198455810546875,
        "lon": 32.4078166999999979225322022102773189544677734375
    }
}

Methodology: 2026.01.18

Sts Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 16:46 UTC 95/100
Vessel A: Marble (MARBLE) CAMEROON
Vessel B: Rhein (RHEIN) CAMEROON
  • Minimum Distance: 17 meters
  • Average Distance: 29 meters
  • Duration: 6h 29m
  • Period: 2026-05-19T16:56:41+00:00 to 2026-05-19T23:26:37+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 17m, avg 29m) for 390 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 17m, avg 29m
Duration25/25Duration 390 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 613271814,
        "imo": 9306562,
        "name": "RHEIN",
        "flag": "CAMEROON"
    },
    "min_distance_m": 17.199999999999999289457264239899814128875732421875,
    "avg_distance_m": 29.199999999999999289457264239899814128875732421875,
    "distance_consistency_m": 3.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 389.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 23396,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-05-19T16:56:41+00:00",
        "end": "2026-05-19T23:26:37+00:00"
    },
    "points_count": {
        "vessel_a": 42,
        "vessel_b": 42
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 17m, avg 29m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 390 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: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 17m, avg 29m) for 390 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 16:02 UTC 75.0%
  • Duration: 6h 36m
  • Radius: 98 meters
  • Data Points: 44 AIS positions
  • Centroid: 31.5129, 32.4069
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 98,
    "duration_minutes": 396,
    "points": 44,
    "centroid": {
        "lat": 31.512852577272720822065821266733109951019287109375,
        "lon": 32.4069220045454500223058857955038547515869140625
    },
    "bbox": {
        "min_lat": 31.51263000000000147338141687214374542236328125,
        "min_lon": 32.4062966999999986228431225754320621490478515625,
        "max_lat": 31.51339829999999864185156184248626232147216796875,
        "max_lon": 32.40773329999999674555510864593088626861572265625
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 16:02 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 6h 36m
  • Data Points: 44 AIS positions
  • Period: 2026-05-19T16:53:39+00:00 to 2026-05-19T23:29:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 396,
    "points_in_zone": 44,
    "first_point": {
        "ts": "2026-05-19T16:53:39+00:00",
        "lat": 31.512788300000000418776835431344807147979736328125,
        "lon": 32.40708829999999807114363647997379302978515625
    },
    "last_point": {
        "ts": "2026-05-19T23:29:39+00:00",
        "lat": 31.51339829999999864185156184248626232147216796875,
        "lon": 32.40773329999999674555510864593088626861572265625
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 15:18 UTC 85/100
Vessel A: Rhein (RHEIN) CAMEROON
Vessel B: Marble (MARBLE) CAMEROON
  • Minimum Distance: 26 meters
  • Average Distance: 41 meters
  • Duration: 1h 19m
  • Period: 2026-05-19T15:18:08+00:00 to 2026-05-19T16:38:02+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (RHEIN and MARBLE) maintained close proximity (min 26m, avg 41m) for 80 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 26m, avg 41m
Duration15/25Duration 80 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±17m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-19T21:45:01.964316+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613271814,
        "imo": 9306562,
        "name": "RHEIN",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "min_distance_m": 26.10000000000000142108547152020037174224853515625,
    "avg_distance_m": 41.10000000000000142108547152020037174224853515625,
    "distance_consistency_m": 16.60000000000000142108547152020037174224853515625,
    "duration_minutes": 79.900000000000005684341886080801486968994140625,
    "overlap_duration_s": 4794,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-05-19T15:18:08+00:00",
        "end": "2026-05-19T16:38:02+00:00"
    },
    "points_count": {
        "vessel_a": 23,
        "vessel_b": 23
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 26m, avg 41m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 80 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b117m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (RHEIN and MARBLE) maintained close proximity (min 26m, avg 41m) for 80 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.512858200000000152840584632940590381622314453125,
            "lon": 32.4073331000000024459950509481132030487060546875
        },
        "time_window": {
            "start_ts": "2026-05-19T15:18:08+00:00",
            "end_ts": "2026-05-19T16:38:02+00:00"
        },
        "searched_at": "2026-05-19T21:45:01.964316+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 15:14 UTC 75.0%
  • Duration: 6h 30m
  • Radius: 50 meters
  • Data Points: 43 AIS positions
  • Centroid: 31.5128, 32.4068
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 49.89999999999999857891452847979962825775146484375,
    "duration_minutes": 390,
    "points": 43,
    "centroid": {
        "lat": 31.51277178139533674539052299223840236663818359375,
        "lon": 32.406805539534872195872594602406024932861328125
    },
    "bbox": {
        "min_lat": 31.51263000000000147338141687214374542236328125,
        "min_lon": 32.4062966999999986228431225754320621490478515625,
        "max_lat": 31.51297170000000136269591166637837886810302734375,
        "max_lon": 32.4071933000000029778675525449216365814208984375
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 15:14 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 6h 30m
  • Data Points: 43 AIS positions
  • Period: 2026-05-19T15:53:41+00:00 to 2026-05-19T22:23:39+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 390,
    "points_in_zone": 43,
    "first_point": {
        "ts": "2026-05-19T15:53:41+00:00",
        "lat": 31.5127983000000000401996658183634281158447265625,
        "lon": 32.40709170000000227673808694817125797271728515625
    },
    "last_point": {
        "ts": "2026-05-19T22:23:39+00:00",
        "lat": 31.512955000000001604121280252002179622650146484375,
        "lon": 32.40716830000000214795363717712461948394775390625
    }
}

Methodology: 2026.01.18

Sts Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 14:10 UTC 95/100
Vessel A: Marble (MARBLE) CAMEROON
Vessel B: Rhein (RHEIN) CAMEROON
  • Minimum Distance: 21 meters
  • Average Distance: 33 meters
  • Duration: 6h 12m
  • Period: 2026-05-19T14:53:38+00:00 to 2026-05-19T21:05:41+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 21m, avg 33m) for 372 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 21m, avg 33m
Duration25/25Duration 372 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±10m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 613271814,
        "imo": 9306562,
        "name": "RHEIN",
        "flag": "CAMEROON"
    },
    "min_distance_m": 21,
    "avg_distance_m": 33.2999999999999971578290569595992565155029296875,
    "distance_consistency_m": 10.199999999999999289457264239899814128875732421875,
    "duration_minutes": 372.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 22323,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        }
    },
    "time_window": {
        "start": "2026-05-19T14:53:38+00:00",
        "end": "2026-05-19T21:05:41+00:00"
    },
    "points_count": {
        "vessel_a": 46,
        "vessel_b": 46
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 21m, avg 33m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 372 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b110m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 21m, avg 33m) for 372 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 14:08 UTC 75.0%
  • Duration: 6h 24m
  • Radius: 76 meters
  • Data Points: 47 AIS positions
  • Centroid: 31.5128, 32.4069
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 75.7000000000000028421709430404007434844970703125,
    "duration_minutes": 384,
    "points": 47,
    "centroid": {
        "lat": 31.51278524680850523509434424340724945068359375,
        "lon": 32.406874929787221617516479454934597015380859375
    },
    "bbox": {
        "min_lat": 31.51263000000000147338141687214374542236328125,
        "min_lon": 32.4062966999999986228431225754320621490478515625,
        "max_lat": 31.513041699999998712655724375508725643157958984375,
        "max_lon": 32.40762500000000301270119962282478809356689453125
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 14:08 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 6h 24m
  • Data Points: 47 AIS positions
  • Period: 2026-05-19T14:41:39+00:00 to 2026-05-19T21:05:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 384,
    "points_in_zone": 47,
    "first_point": {
        "ts": "2026-05-19T14:41:39+00:00",
        "lat": 31.512969999999999259898686432279646396636962890625,
        "lon": 32.40757330000000280278982245363295078277587890625
    },
    "last_point": {
        "ts": "2026-05-19T21:05:41+00:00",
        "lat": 31.51269500000000078898665378801524639129638671875,
        "lon": 32.4068017000000025973349693231284618377685546875
    }
}

Methodology: 2026.01.18

Sts Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 13:15 UTC 95/100
Vessel A: Marble (MARBLE) CAMEROON
Vessel B: Rhein (RHEIN) CAMEROON
  • Minimum Distance: 24 meters
  • Average Distance: 33 meters
  • Duration: 6h 33m
  • Period: 2026-05-19T13:23:39+00:00 to 2026-05-19T19:56:39+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 24m, avg 33m) for 393 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 24m, avg 33m
Duration25/25Duration 393 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±9m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 613271814,
        "imo": 9306562,
        "name": "RHEIN",
        "flag": "CAMEROON"
    },
    "min_distance_m": 23.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 32.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 9.300000000000000710542735760100185871124267578125,
    "duration_minutes": 393,
    "overlap_duration_s": 23580,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        }
    },
    "time_window": {
        "start": "2026-05-19T13:23:39+00:00",
        "end": "2026-05-19T19:56:39+00:00"
    },
    "points_count": {
        "vessel_a": 56,
        "vessel_b": 56
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 24m, avg 33m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 393 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b19m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 24m, avg 33m) for 393 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 13:14 UTC 75.0%
  • Duration: 6h 39m
  • Radius: 67 meters
  • Data Points: 53 AIS positions
  • Centroid: 31.5128, 32.4070
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 66.599999999999994315658113919198513031005859375,
    "duration_minutes": 399,
    "points": 53,
    "centroid": {
        "lat": 31.5128177679245169429123052395880222320556640625,
        "lon": 32.40697245094339251636483822949230670928955078125
    },
    "bbox": {
        "min_lat": 31.51263000000000147338141687214374542236328125,
        "min_lon": 32.4062966999999986228431225754320621490478515625,
        "max_lat": 31.513041699999998712655724375508725643157958984375,
        "max_lon": 32.40762500000000301270119962282478809356689453125
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 13:14 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 6h 39m
  • Data Points: 53 AIS positions
  • Period: 2026-05-19T13:50:39+00:00 to 2026-05-19T20:29:41+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 399,
    "points_in_zone": 53,
    "first_point": {
        "ts": "2026-05-19T13:50:39+00:00",
        "lat": 31.51303169999999909123289398849010467529296875,
        "lon": 32.40760329999999811434463481418788433074951171875
    },
    "last_point": {
        "ts": "2026-05-19T20:29:41+00:00",
        "lat": 31.51273330000000072459442890249192714691162109375,
        "lon": 32.40682170000000184018063009716570377349853515625
    }
}

Methodology: 2026.01.18

Sts🛰️✗ Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 11:10 UTC 95/100
Vessel A: Rhein (RHEIN) CAMEROON
Vessel B: Marble (MARBLE) CAMEROON
  • Minimum Distance: 16 meters
  • Average Distance: 34 meters
  • Duration: 5h 27m
  • Period: 2026-05-19T11:10:22+00:00 to 2026-05-19T16:38:02+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (RHEIN and MARBLE) maintained close proximity (min 16m, avg 34m) for 328 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 16m, avg 34m
Duration25/25Duration 328 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±12m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone

🛰️ Satellite Corroboration

✗ SAR Not Available

No satellite imagery for this time/location

No Sentinel-1 scenes covering AOI and time window

Searched: 2026-05-19T18:00:04.579411+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613271814,
        "imo": 9306562,
        "name": "RHEIN",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "min_distance_m": 16.39999999999999857891452847979962825775146484375,
    "avg_distance_m": 34,
    "distance_consistency_m": 11.800000000000000710542735760100185871124267578125,
    "duration_minutes": 327.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 19660,
    "speed_a_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_a_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-05-19T11:10:22+00:00",
        "end": "2026-05-19T16:38:02+00:00"
    },
    "points_count": {
        "vessel_a": 63,
        "vessel_b": 63
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 16m, avg 34m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 328 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b112m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (RHEIN and MARBLE) maintained close proximity (min 16m, avg 34m) for 328 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.51303659999999950969140627421438694000244140625,
            "lon": 32.4076225000000022191670723259449005126953125
        },
        "time_window": {
            "start_ts": "2026-05-19T11:10:22+00:00",
            "end_ts": "2026-05-19T16:38:02+00:00"
        },
        "searched_at": "2026-05-19T18:00:04.579411+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

Methodology: 2026.01.18

Loiter Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 11:05 UTC 75.0%
  • Duration: 6h 33m
  • Radius: 96 meters
  • Data Points: 42 AIS positions
  • Centroid: 31.5129, 32.4074
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "radius_m": 95.7000000000000028421709430404007434844970703125,
    "duration_minutes": 393,
    "points": 42,
    "centroid": {
        "lat": 31.512940080952386523449604283086955547332763671875,
        "lon": 32.407373842857140289197559468448162078857421875
    },
    "bbox": {
        "min_lat": 31.512781700000001450234776712022721767425537109375,
        "min_lon": 32.40689499999999867441147216595709323883056640625,
        "max_lat": 31.513425000000001574562702444382011890411376953125,
        "max_lon": 32.40820670000000092159098130650818347930908203125
    },
    "zone_id": "discovered_018"
}

Methodology: 2026.01.18

Zone Dwell Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 11:05 UTC 80.0%
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone
  • Duration: 6h 33m
  • Data Points: 42 AIS positions
  • Period: 2026-05-19T11:05:38+00:00 to 2026-05-19T17:38:38+00:00
Show Raw Evidence JSON
{
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "dwell_minutes": 393,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-05-19T11:05:38+00:00",
        "lat": 31.513425000000001574562702444382011890411376953125,
        "lon": 32.40820670000000092159098130650818347930908203125
    },
    "last_point": {
        "ts": "2026-05-19T17:38:38+00:00",
        "lat": 31.512816699999998348857843666337430477142333984375,
        "lon": 32.40689499999999867441147216595709323883056640625
    }
}

Methodology: 2026.01.18

Sts Eastern Mediterranean Sanctioned Vessel Zone May 19, 2026 10:16 UTC 95/100
Vessel A: Marble (MARBLE) CAMEROON
Vessel B: Rhein (RHEIN) CAMEROON
  • Minimum Distance: 24 meters
  • Average Distance: 34 meters
  • Duration: 6h 35m
  • Period: 2026-05-19T10:53:45+00:00 to 2026-05-19T17:29:42+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Eastern Mediterranean Sanctioned Vessel Zone

Confidence Analysis

Score: 95/100

High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 24m, avg 34m) for 396 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness25/25Min distance 24m, avg 34m
Duration25/25Duration 396 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±11m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 613277612,
        "imo": 9323974,
        "name": "MARBLE",
        "flag": "CAMEROON"
    },
    "vessel_b": {
        "mmsi": 613271814,
        "imo": 9306562,
        "name": "RHEIN",
        "flag": "CAMEROON"
    },
    "min_distance_m": 23.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 33.5,
    "distance_consistency_m": 10.800000000000000710542735760100185871124267578125,
    "duration_minutes": 395.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 23757,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        }
    },
    "time_window": {
        "start": "2026-05-19T10:53:45+00:00",
        "end": "2026-05-19T17:29:42+00:00"
    },
    "points_count": {
        "vessel_a": 41,
        "vessel_b": 41
    },
    "zone_id": "discovered_018",
    "zone_name": "Eastern Mediterranean Sanctioned Vessel Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 24m, avg 34m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 396 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b111m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Eastern Mediterranean Sanctioned Vessel Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (MARBLE and RHEIN) maintained close proximity (min 24m, avg 34m) for 396 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 Eastern Mediterranean Sanctioned Vessel Zone, a known STS activity area."
    }
}

Methodology: 2026.01.18

Source snapshot

SanctionerAs ofEntity ID
🇬🇧 UK2025-09-299323974

We mirror official lists; always verify at the source.

Sanctioned on the same day

  • ADHARA · IMO 9353125 🇦🇺 AU🇨🇦 CA🇪🇺 EU🇬🇧 UK
  • AKAR WEST · IMO 9258167 🇦🇺 AU🇨🇦 CA🇪🇺 EU🇳🇿 NZ🇬🇧 UK
  • ATLANTICOS · IMO 9282986 🇦🇺 AU🇨🇦 CA🇪🇺 EU🇳🇿 NZ🇬🇧 UK
  • BELOMOR · IMO 9384435 🇦🇺 AU🇨🇦 CA🇪🇺 EU🇳🇿 NZ🇬🇧 UK
  • Blue · IMO 9236353 🇦🇺 AU🇨🇦 CA🇪🇺 EU🇳🇿 NZ🇬🇧 UK
  • Blue Talu · IMO 9334557 🇦🇺 AU🇨🇦 CA🇪🇺 EU🇬🇧 UK
  • C Viking · IMO 9261657 🇦🇺 AU🇨🇦 CA🇪🇺 EU🇳🇿 NZ🇬🇧 UK
  • CELERIX · IMO 9222560 🇦🇺 AU🇨🇦 CA🇪🇺 EU🇬🇧 UK