Callsign:	PB4939
MMSI number:	244660862
IMO number:	626613
Navigational status:	Under way (engine) (0)
Vessel class:	Tanker (80)
Destination:	ROTTERDAM (ETA Jul14 21:15)
Location:	51°41.93' N 4°25.54' E - locator JO21FQ17BR - show map 1.2 km Northwest bearing 311° from Willemstad, Gemeente Moerdijk, North Brabant, Netherlands [?] 8.4 km Northwest bearing 297° from Klundert, Gemeente Moerdijk, North Brabant, Netherlands 81.5 km Southwest bearing 203° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands 94.4 km North bearing 3° from Brussels, (Bruxelles-Capitale), Brussels Capital Region, Belgium
Last position:	2025-07-26 17:56:44 UTC (3d 11h44m ago) 2025-07-26 19:56:44 CEST local time at Willemstad, Netherlands [?]
Course:	239° – heading 511°
Speed:	9 km/h
Dimensions:	length 148 m width 23 m draught 4.5 m
Last path:	PB4939>ais via IC8FGU
Positions stored:	6458

This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.