Callsign:	@@@@@@@
MMSI number:	338097587
Vessel class:	Sailing (36)
Location:	37°51.22' N 122°27.43' W - locator CM87SU54DV - show map 2.2 km South bearing 181° from Tiburon, Marin County, California, United States [?] 2.2 km South bearing 163° from Belvedere, Marin County, California, United States 9.4 km North bearing 339° from San Francisco, San Francisco County, California, United States 75.6 km Northwest bearing 319° from San Jose, Santa Clara County, California, United States
Last position:	2025-07-19 20:37:52 UTC (6d 5h31m ago) 2025-07-19 13:37:52 PDT local time at Tiburon, United States [?]
Course:	15° – heading 511°
Speed:	12 km/h
Last path:	@@@@@@@>ais via SUNSET
Positions stored:	1421

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.