Callsign:	WDM6874
MMSI number:	367396670
IMO number:	194153
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Location:	37°47.75' N 122°18.97' W - locator CM87UT21BA - show map 7.4 km Northwest bearing 297° from Alameda, Alameda County, California, United States [?] 9.4 km East bearing 76° from San Francisco, San Francisco County, California, United States 16.1 km Northwest bearing 299° from San Leandro, Alameda County, California, United States 62.8 km Northwest bearing 324° from San Jose, Santa Clara County, California, United States
Last position:	2025-01-13 01:12:47 UTC (1d 2h7m ago) 2025-01-12 17:12:47 PST local time at Alameda, United States [?]
Course:	360° – heading 511°
Speed:	0 km/h
Dimensions:	length 29 m width 10 m draught 0.0 m
Last path:	WDM6874>ais via SUNSET
Positions stored:	42419

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.