About PIONEER JUPITER
PIONEER JUPITER is a Norway-flagged Roll-on/Roll-off registered under IMO 9855466 (MMSI 428836904) and currently associated with the Port of Cork, Ireland. Vessels in this class belong to the broader roll-on/roll-off (ro-ro) facility family — operationally that means cargo handling and voyage planning are dominated by pure car and truck carriers (PCTCs), ro-pax ferries, and project cargo ro-ro tonnage. Stern and side ramps allow wheeled cargo to drive on and off, supported by paved marshalling yards capable of staging thousands of vehicles or trailer units between vessel calls. She measures 173 metres in length overall by 22 metres in beam, with a gross tonnage of 139,185 GT and a deadweight of 201,718 tonnes.
The vessel is shown as moored, indicating she is secured at a berth or designated mooring with engines on standby and cargo operations either underway or completed. Her current declared estimated time of arrival is May 7, 2026 02:42 UTC, although ETAs are routinely revised in transit to reflect weather, routeing and pilot scheduling. She was built in 2012. The vessel is registered with the International Maritime Organization, whose database of registered ships and the conventions governing their operation is published at the IMO conventions library.
IMO numbers are issued by IHS Markit on behalf of the International Maritime Organization and remain attached to the hull for the lifetime of the vessel â they do not change with sale, re-flagging, or rename. MMSI numbers, in contrast, are issued by the flag state’s telecommunications administration and identify the vessel’s radio installation; an MMSI changes when a vessel changes flag. When researching an individual ship across historical records â particularly for incident investigation, port state inspection history, or insurance claims â the IMO number (9855466) is the stable identifier to anchor the search on, while the MMSI is the right key for AIS reception logs and VHF radio licensing records.
The vessel’s declared dimensions of 173 metres length overall by 22 metres beam, with 139,185 gross tonnage and 201,718 tonnes deadweight, place her in a specific size class within the global roll-on/roll-off fleet. These particulars determine which port berths she can use, which canals she can transit (Panama Canal locks, Suez Canal draught, the Strait of Malacca’s Malaccamax constraint), and which terminals around the world have the cranes and yard plant to work her efficiently.