Callsign:	WDC3449
MMSI number:	367008020
IMO number:	35315
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Location:	37°46.90' N 122°22.58' W - locator CM87TS47UO - show map 3.9 km East bearing 79° from San Francisco, San Francisco County, California, United States [?] 11.3 km Northeast bearing 42° from Daly City, San Mateo County, California, United States 64.9 km Northwest bearing 319° from San Jose, Santa Clara County, California, United States
Last position:	2025-11-14 04:52:20 UTC (2d 14h46m ago) 2025-11-13 20:52:20 PST local time at San Francisco, United States [?]
Course:	335° – heading 330°
Speed:	19 km/h
Dimensions:	length 31 m width 10 m draught 3.7 m
Last path:	WDC3449>ais via AA6CE
Positions stored:	75790

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.