Callsign:	WDM6876
MMSI number:	367396790
IMO number:	194177
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Location:	37°46.18' N 122°22.68' W - locator CM87TS44PR - show map 3.7 km East bearing 99° from San Francisco, San Francisco County, California, United States [?] 10.2 km Northeast bearing 46° from Daly City, San Mateo County, California, United States 64.0 km Northwest bearing 318° from San Jose, Santa Clara County, California, United States
Last position:	2026-01-28 17:37:47 UTC (5d 11h8m ago) 2026-01-28 09:37:47 PST local time at San Francisco, United States [?]
Course:	147° – heading 145°
Speed:	8 km/h
Dimensions:	length 29 m width 10 m draught 0.0 m
Last path:	WDM6876>ais via AA6CE
Positions stored:	62284

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.