Callsign:	WDM3329
MMSI number:	368196320
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	LANGLEY (ETA May27 04:21)
Location:	37°45.94' N 122°22.02' W - locator CM87TS53XS - show map 4.7 km East bearing 103° from San Francisco, San Francisco County, California, United States [?] 10.7 km Northeast bearing 51° from Daly City, San Mateo County, California, United States 63.0 km Northwest bearing 319° from San Jose, Santa Clara County, California, United States
Last position:	2025-11-13 12:02:51 UTC (2d 7h56m ago) 2025-11-13 04:02:51 PST local time at San Francisco, United States [?]
Course:	167° – heading 168°
Speed:	18 km/h
Dimensions:	length 30 m width 10 m draught 5.0 m
Last path:	WDM3329>ais via AA6CE
Positions stored:	18623

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.