Callsign:	PD4221
MMSI number:	244780171
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	DRACHTEN
Location:	53°04.05' N 5°20.33' E - locator JO23QB06PE - show map 4.5 km West bearing 289° from Makkum, Sûdwest Fryslân, Friesland, Netherlands [?] 12.9 km West bearing 271° from Bolsward, Sûdwest Fryslân, Friesland, Netherlands 82.8 km North bearing 21° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands 130.6 km Northeast bearing 32° from Den Haag, Gemeente ’s-Gravenhage, South Holland, Netherlands
Last position:	2025-03-01 04:04:25 UTC (4d 16h22m ago) 2025-03-01 05:04:25 CET local time at Makkum, Netherlands [?]
Course:	0° – heading 511°
Speed:	0 km/h
Dimensions:	length 53 m width 8 m draught 0.1 m
Last path:	PD4221>ais via pa2dx
Positions stored:	15510

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.