Callsign:	WDC3449
MMSI number:	367008020
IMO number:	35315
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	XX XXX>US^0VD1
Location:	37°46.56' N 122°22.04' W - locator CM87TS56WG - show map 4.6 km East bearing 88° from San Francisco, San Francisco County, California, United States [?] 11.4 km Northeast bearing 47° from Daly City, San Mateo County, California, United States 63.9 km Northwest bearing 320° from San Jose, Santa Clara County, California, United States
Last position:	2025-12-07 22:58:00 UTC (3h49m ago) 2025-12-07 14:58:00 PST local time at San Francisco, United States [?]
Course:	346.300018° – heading 352°
Speed:	19 km/h
Dimensions:	length 31 m width 10 m draught 3.7 m
Last path:	WDC3449>ais via AA6CE
Positions stored:	75820

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.