Callsign:	WDN6488
MMSI number:	368299550
Vessel class:	Pleasure (37)
Location:	37°50.83' N 122°26.52' W - locator CM87SU63WH - show map 3.2 km Southeast bearing 156° from Tiburon, Marin County, California, United States [?] 3.5 km Southeast bearing 145° from Belvedere, Marin County, California, United States 8.3 km North bearing 346° from San Francisco, San Francisco County, California, United States 74.2 km Northwest bearing 320° from San Jose, Santa Clara County, California, United States
Last position:	2025-06-27 20:09:12 UTC (30d 6h34m ago) 2025-06-27 13:09:12 PDT local time at Tiburon, United States [?]
Course:	80° – heading 511°
Speed:	18 km/h
Last path:	WDN6488>ais via SUNSET
Positions stored:	151

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.