Callsign:	WDA4337
MMSI number:	366808340
Navigational status:	Under way (engine) (0)
Vessel class:	(0)
Destination:	(ETA ***00 24:60)
Location:	37°48.44' N 122°20.54' W - locator CM87TT83WS - show map 7.7 km Northeast bearing 62° from San Francisco, San Francisco County, California, United States [?] 12.4 km Southeast bearing 126° from Tiburon, Marin County, California, United States 12.9 km Southeast bearing 124° from Belvedere, Marin County, California, United States 65.2 km Northwest bearing 323° from San Jose, Santa Clara County, California, United States
Last position:	2025-11-06 21:21:47 UTC (2d 14h45m ago) 2025-11-06 13:21:47 PST local time at San Francisco, United States [?]
Course:	241° – heading 246°
Speed:	24 km/h
Dimensions:	length 32 m width 9 m draught 0.0 m
Last path:	WDA4337>ais via SUNSET
Positions stored:	476812

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.