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T.SEMAHAT — Know Your Vessel

Updated: 2026-08-04 | Source: ship.rootz.global | Data: OFAC, EIA, EU MRV, GFW, AIS, USCG
Flag State
Istanbul
Type
Oil tanker
DWT
25,000

Present Location

Status
Location Unknown
No AIS position or port visit data available

Risk Assessment

Carbon Intensity (CII)

Rating (2023)
Unrated
CO2 Emissions
1,084
tonnes/year
Distance
2,161
nm/year

EU MRV 2024: 6,491 t CO2, 2,083 t fuel

Voyage Pattern

Port Visits
99
Avg Dwell
92h
4d per port
Port Utilization
36.3%
time in port
Dark Events
1
115h total

Primary route: FUJAIRAH → ALIAGA → TUZLA

Data period: 2023-08-13 to 2026-06-21

PortCountryVisits
TUZLATUR5
FUJAIRAHARE5
CANAKKALETUR5
ALIAGATUR5
YALOVA TOWNTUR4

Recent port calls:

ArrivalDeparturePortCountryDuration
2026-06-212026-06-21—ITA0.1d
2026-06-152026-06-17—LBY2d
2026-06-062026-06-11—TUR5d
2026-06-052026-06-06—TUR0.8d
2026-06-012026-06-05—TUR4.3d
2026-05-272026-05-30—TUR2.4d
2026-05-262026-05-27—TUR1.1d
2026-05-232026-05-25YALOVA TOWNTUR2.1d
2026-05-182026-05-19—RUS0.8d
2026-05-122026-05-14CANAKKALETUR2.1d
2026-05-072026-05-08—ITA1.5d
2026-05-062026-05-06—ITA0.2d
2026-04-212026-04-30—TUR9.1d
2026-04-112026-04-17—MLT5.8d
2026-04-072026-04-09TARRAGONAESP2d
2026-03-292026-03-30NOVOROSSIYSKRUS1.1d
2026-03-112026-03-13ISTANBULTUR1.4d
2026-03-092026-03-11CANAKKALETUR1.8d
2026-02-252026-02-26ROTTERDAM MAASVLAKTENLD1.5d
2026-02-242026-02-25—NLD0.7d

AIS Dark Periods

1 events, 115 hours total darkness

StartEndHoursAIS OffAIS OnDistanceImplied SpeedAnalysis
2024-12-042024-12-09115————HIGH RISK ZONE

ESTIMATED — implied speed = straight-line distance / dark hours. Actual route unknown. Reference: loaded VLCC ~12-14 kn, ballast ~15-16 kn, stationary <1 kn = possible STS or anchorage.

Loitering Events

76 events, 1284 hours total (stationary at sea — possible STS transfers)

StartHoursPositionSpeedRisk Zone
2026-07-30942.4, 28.40.7 kn—
2026-07-292842.5, 28.40.1 kn—
2026-07-281042.3, 28.40.3 kn—
2026-07-281242.3, 28.51.0 kn—
2026-07-261042.3, 28.60.7 kn—
2026-07-25642.2, 28.51.3 kn—
2026-07-24342.4, 28.51.6 kn—
2026-07-241541.7, 28.71.0 kn—
2026-07-23342.3, 28.31.3 kn—
2026-07-22142.4, 28.31.7 kn—

STS Encounter Detection

Other vessels detected loitering at the same position and time (within ~30nm, overlapping window)

2026-07-23 — 42.3, 28.3

VesselIMOStatusDurationSpeed
TIGANI9776767Clean14h0.8 kn

2026-07-20 — 42.3, 28.4

VesselIMOStatusDurationSpeed
TIGANI9776767Clean20h0.1 kn
TIGANI9776767Clean14h0.8 kn

2026-07-19 — 42.3, 28.3

VesselIMOStatusDurationSpeed
TIGANI9776767Clean20h0.1 kn

2026-07-19 — 42.4, 28.3

VesselIMOStatusDurationSpeed
TIGANI9776767Clean20h0.1 kn

2026-06-12 — 35.5, 32.0

VesselIMOStatusDurationSpeed
LUCKY SAILOR9464352Clean9h1.1 kn

2026-03-18 — 41.5, 40.4

VesselIMOStatusDurationSpeed
MILITOS9607435Clean46h0.9 kn

2025-11-12 — Persian Gulf (Kharg Island)

VesselIMOStatusDurationSpeed
ROBERTA9237008SANCTIONED4097h0.1 kn
ADENA9254862SANCTIONED4517h0.1 kn
ALEXANDRA9273260SANCTIONED4223h0.1 kn
GAS NORA8813116SANCTIONED254h0.0 kn
SOYIA9263916Clean39h0.1 kn
ARROW G9272395Clean98h0.1 kn
NAVE CASSIOPEIA9589932Clean244h0.1 kn
ASTRID 19176656SANCTIONED589h0.0 kn

2025-01-14 — Persian Gulf (Kharg Island)

VesselIMOStatusDurationSpeed
SERENITY GAS9197727SANCTIONED106h0.0 kn
GLOBAL ELEGANCE9232955SANCTIONED9144h0.0 kn
CASINOVA9280366SANCTIONED53h1.6 kn
AL DIAB II9053816SANCTIONED164h0.1 kn
GLOBAL PEAK9125712SANCTIONED162h0.0 kn
SOUTHPORT9408530Clean78h0.1 kn
SOUTHPORT9408530Clean24h0.0 kn
GIANNIS9432050Clean54h0.1 kn
ALMI GALAXY9579509Clean11h0.1 kn
NEW HARMONY9603207Clean83h0.1 kn
CITRINE9746229Clean162h0.1 kn
LOIRE9761516Clean80h0.1 kn
MATALA9776743Clean7h0.1 kn

2025-01-06 — Persian Gulf (Kharg Island)

VesselIMOStatusDurationSpeed
BOYKA II9178068SANCTIONED1566h0.0 kn
SERENITY GAS9197727SANCTIONED106h0.0 kn
GLOBAL ELEGANCE9232955SANCTIONED9144h0.0 kn
LISBOA9257711SANCTIONED55h0.5 kn
ADENA9254862SANCTIONED25h0.1 kn
CASINOVA9280366SANCTIONED53h1.6 kn
AL DIAB II9053816SANCTIONED164h0.1 kn
GLOBAL PEAK9125712SANCTIONED162h0.0 kn
ALEXANDRA9273260SANCTIONED35h0.1 kn
WORLD COURAGE9289740SANCTIONED262h0.1 kn
VAUGHAN9256901Clean91h0.1 kn
PAROS9296195Clean20h0.2 kn
SOUTHPORT9408530Clean24h0.0 kn
PHAETHON9412098Clean260h0.1 kn
OLYMPIC SEA9489285Clean2h0.9 kn
PHOENIX VIGOR9513751Clean74h0.1 kn
PHOENIX VIGOR9513751Clean17h0.2 kn
ALMI GALAXY9579509Clean11h0.1 kn
AGISTRI9597018Clean42h0.1 kn
NEW HARMONY9603207Clean8h0.1 kn

32 unique vessels encountered, 13 sanctioned

Data sources: EU MRV (EMSA), CII computed, Global Fishing Watch, GFW dark events. All records cryptographically attested on Polygon.

Data sources: U.S. Treasury (OFAC SDN), U.S. Energy Information Administration, European Maritime Safety Agency (EU MRV), U.S. Coast Guard (PSIX), Global Fishing Watch (GFW satellite AIS), AISStream.io. All data cryptographically attested on Polygon blockchain.

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