573 B — Port Tender · IMO 7815703

573 B is currently in the South Atlantic Ocean. It is sailing from BUENOS AIRES to BUENOS AIRES with an ETA of 27 Sep 2025, 22:06 UTC. Its exact coordinates, speed and ETA are shown at the top of this page and refresh from the latest AIS broadcast.

573 B broadcasts MMSI 701000798 and is registered as IMO 7815703. 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.

573 B is classified as a port tender vessel registered under the AR flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder and full AR flag list at /flag/ar.

MarineRadar shows the latest AIS broadcast from 573 B 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.

As a port tender, 573 B sits in the same design class as the other port tenders listed in the Similar Vessels section of the vessel page.