STS POSEIDON — Dive Vessel · IMO 8987888

STS POSEIDON is currently under way in the South Pacific Ocean. It is sailing from QUINTERO to QUINTERO with an ETA of 5 Nov 2026, 11:01 UTC. Its exact coordinates, speed and ETA are shown at the top of this page and refresh from the latest AIS broadcast.

STS POSEIDON broadcasts MMSI 354954000 and is registered as IMO 8987888, with call sign HP6366 . The MMSI is the radio identifier used by AIS; the IMO number stays with the ship for life and does not change with re-flagging or sale.

STS POSEIDON is classified as a dive vessel vessel registered under the PA flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full dive vessel fleet at /vessel-type/military-special and full PA flag list at /flag/pa.

MarineRadar shows the latest AIS broadcast from STS POSEIDON above, with current position, course, speed, and navigation status. Tap "View on map" to centre the live tracker on the vessel and watch its movement update in real time. The same data is available offline-friendly in the iOS and Android apps.

AIS transponders broadcast position every 2 seconds when underway at high speed and up to every 3 minutes at anchor. The position you see refreshes whenever the ship is in range of a coastal AIS receiver or a satellite pass — typically seconds in coastal waters and minutes offshore.

STS POSEIDON is classed by AMERICAN BUREAU OF SHIPPING, the classification society responsible for inspecting the vessel against safety, structural and operational rules. As a dive vessel, STS POSEIDON sits in the same design class as the other dive vessels listed in the Similar Vessels section of the vessel page, or in the full dive vessel directory at /vessel-type/military-special. STS POSEIDON has a gross tonnage of 406 GT.