Callsign:	WDP5492
MMSI number:	367084220
Vessel class:	Pleasure (37)
Location:	37°51.41' N 122°28.03' W - locator CM87SU35WP - show map 2.1 km Southwest bearing 207° from Tiburon, Marin County, California, United States [?] 10.0 km Northwest bearing 335° from San Francisco, San Francisco County, California, United States 76.4 km Northwest bearing 319° from San Jose, Santa Clara County, California, United States
Last position:	2025-08-02 23:39:15 UTC (2d 7h58m ago) 2025-08-02 16:39:15 PDT local time at Tiburon, United States [?]
Course:	304° – heading 511°
Speed:	10 km/h
Last path:	WDP5492>ais via SUNSET
Positions stored:	131

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.