Callsign:	PA 3998
MMSI number:	244170424
Navigational status:	Under way (engine) (0)
Vessel class:	(90)
Location:	52°08.65' N 4°27.98' E - locator JO22FD54WO - show map 2.4 km Southwest bearing 229° from Leiden, Gemeente Leiden, South Holland, Netherlands [?] 4.0 km South bearing 183° from Oegstgeest, Gemeente Oegstgeest, South Holland, Netherlands 24.6 km North bearing 358° from Rotterdam, Gemeente Rotterdam, South Holland, Netherlands 38.5 km Southwest bearing 229° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands
Last position:	2026-01-13 10:54:04 UTC (10d 6h43m ago) 2026-01-13 11:54:04 CET local time at Leiden, Netherlands [?]
Course:	175° – heading 511°
Speed:	9 km/h
Dimensions:	draught 0.0 m
Last path:	PA 3998>ais via Southwood
Positions stored:	2997

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.