OCEAN GUARDIAN (IMO 9761401)
OCEAN GUARDIAN is an Offshore Supply Ship built in 2018 and flying the Portugal (MAR) flag, placing it in its eighth year of service. The vessel reports a deadweight tonnage of 1,502 metric tonnes and a gross tonnage of 2,173. This vessel is configured for offshore support operations. OCEAN GUARDIAN is classed by the American Bureau of Shipping, which is an IACS member. The vessel has been observed in West Europe, North Europe, and North Europe, West Europe over recent periods. It has previously operated under five different flag states and has been known by two former names. Over the last 36 months it has had 4 port state control (PSC) inspections and no detentions. The most recent inspection was on 4 September 2026.
- Type: Offshore Supply Ship
- Flag: Portugal (MAR)
- Year built: 2018
- MMSI: 255744000
- Call sign: CQKK
- Gross tonnage: 2173
- Deadweight: 1502 t
- Length overall: 62 m
- Beam: 16 m
- Port State Control (PSC) inspections: 6 since 2022
- PSC detentions in the last 36 months: 0
- Last PSC inspection: 04/09/2026
- Registered owner: SENTINEL OFFSHORE VESSELS LTD
- Ship manager: SENTINEL MARINE PTE LTD
- ISM manager: CYAN SENTINEL LTD (United Kingdom)
- Last AIS position: 45°42.2′N · 007°7.9′W · Speed 4.6 kn · under way · received 8 October 2026 at 18:06 UTC
- Destination: To be nominated
- Arrival alert: rynda.io messages you by email or in Telegram when OCEAN GUARDIAN arrives in port. Free for up to 3 vessels.
Frequently asked questions
What is the vessel type of OCEAN GUARDIAN?
OCEAN GUARDIAN is an Offshore Supply Ship. It was built in 2018 and is currently in its eighth year of service.
What are the tonnage specifications for OCEAN GUARDIAN?
The vessel has a deadweight tonnage of 1,502 metric tonnes. Its gross tonnage is recorded at 2,173.
Which classification society manages OCEAN GUARDIAN?
The vessel is classed by the American Bureau of Shipping. This society is a recognized member of the International Association of Classification Societies (IACS).
Where has OCEAN GUARDIAN been operating recently?
The vessel has been observed in West Europe and North Europe. These geographic areas represent its most recent recorded maritime locations.
How many inspections has OCEAN GUARDIAN undergone?
Over the last 36 months it has had 4 port state control (PSC) inspections and no detentions, with 16 deficiencies recorded. The most recent inspection was on 4 September 2026. All-time records show 6 inspections since 2022 and no detentions.
Live AIS via Rynda — combined with classification, PSC, sanctions and ownership data.