Callsign:	338313393
MMSI number:	338313393
Location:	37°51.85' N 122°27.31' W - locator CM87SU57IJ - show map 1.0 km South bearing 173° from Tiburon, Marin County, California, United States [?] 1.2 km Southeast bearing 140° from Belvedere, Marin County, California, United States 10.4 km North bearing 342° from San Francisco, San Francisco County, California, United States 76.4 km Northwest bearing 320° from San Jose, Santa Clara County, California, United States
Last position:	2025-02-15 22:52:50 UTC (18d 52m ago) 2025-02-15 14:52:50 PST local time at Tiburon, United States [?]
Course:	330° – heading 346°
Speed:	7 km/h
Last path:	338313393>ais via SUNSET
Positions stored:	2

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.