Callsign:	366864850
MMSI number:	366864850
Navigational status:	Under way (sailing) (8)
Location:	37°49.37' N 122°28.40' W - locator CM87ST37EL - show map 5.8 km South bearing 195° from Tiburon, Marin County, California, United States [?] 7.1 km Northwest bearing 318° from San Francisco, San Francisco County, California, United States 74.0 km Northwest bearing 317° from San Jose, Santa Clara County, California, United States
Last position:	2025-08-04 21:32:34 UTC (2m14s ago) 2025-08-04 14:32:34 PDT local time at Tiburon, United States [?]
Course:	109.5° – heading 123°
Speed:	13 km/h
Last path:	366864850>ais via SUNSET
Positions stored:	7851

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.