Callsign:	WDA4337
MMSI number:	366808340
Navigational status:	Under way (engine) (0)
Vessel class:	Pilot (50)
Location:	37°48.31' N 122°23.17' W - locator CM87TT33PF - show map 4.4 km Northeast bearing 41° from San Francisco, San Francisco County, California, United States [?] 10.2 km Southeast bearing 138° from Belvedere, Marin County, California, United States 10.6 km Southeast bearing 125° from Sausalito, Marin County, California, United States 67.5 km Northwest bearing 320° from San Jose, Santa Clara County, California, United States
Last position:	2025-11-16 19:23:24 UTC (13d 19h59m ago) 2025-11-16 11:23:24 PST local time at San Francisco, United States [?]
Course:	106° – heading 117°
Speed:	21 km/h
Dimensions:	length 32 m width 9 m draught 4.0 m
Last path:	WDA4337>ais via AA6CE
Positions stored:	476818

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.