Callsign:	HP4641
MMSI number:	371150000
IMO number:	644878
Navigational status:	Under way (engine) (0)
Vessel class:	(10)
Destination:	SURVEY AREA
Location:	52°47.10' N 4°33.03' E - locator JO22GS68BJ - show map 16.2 km West bearing 290° from Harenkarspel, Gemeente Harenkarspel, North Holland, Netherlands [?] 16.7 km West bearing 269° from Schagen, Gemeente Schagen, North Holland, Netherlands 51.1 km Northwest bearing 333° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands 96.0 km North bearing 3° from Rotterdam, Gemeente Rotterdam, South Holland, Netherlands
Last position:	2025-04-12 03:32:41 UTC (9d 23h33m ago) 2025-04-12 05:32:41 CEST local time at Harenkarspel, Netherlands [?]
Course:	15° – heading 20°
Speed:	12 km/h
Dimensions:	length 32 m width 7 m draught 2.9 m
Last path:	HP4641>ais via pa2dx
Positions stored:	4866

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.