Callsign:	WDA9209
MMSI number:	366862670
IMO number:	203203
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	SFO
Location:	37°46.48' N 122°23.14' W - locator CM87TS35RW - show map 3.0 km East bearing 90° from San Francisco, San Francisco County, California, United States [?] 10.8 km Southwest bearing 235° from Emeryville, Alameda County, California, United States 64.9 km Northwest bearing 318° from San Jose, Santa Clara County, California, United States
Last position:	2026-01-20 01:52:19 UTC (4h8m ago) 2026-01-19 17:52:19 PST local time at San Francisco, United States [?]
Course:	236.699997° – heading 511°
Speed:	1 km/h
Dimensions:	length 20 m width 8 m draught 3.0 m
Last path:	WDA9209>ais via AA6CE
Positions stored:	23213

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.