Callsign:	338493843
MMSI number:	338493843
Vessel class:	Sailing (36)
Location:	37°50.27' N 122°28.20' W - locator CM87SU31OC - show map 3.9 km South bearing 187° from Belvedere, Marin County, California, United States [?] 4.1 km South bearing 196° from Tiburon, Marin County, California, United States 8.3 km Northwest bearing 328° from San Francisco, San Francisco County, California, United States 75.0 km Northwest bearing 318° from San Jose, Santa Clara County, California, United States
Last position:	2025-07-17 03:56:10 UTC (9d 5h32m ago) 2025-07-16 20:56:10 PDT local time at Belvedere, United States [?]
Course:	342° – heading 511°
Speed:	9 km/h
Last path:	338493843>ais via SUNSET
Positions stored:	85

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.