Callsign:	WDJ9951
MMSI number:	368031010
Vessel class:	Pleasure (37)
Location:	37°49.92' N 122°27.16' W - locator CM87ST59QQ - show map 4.2 km Southeast bearing 137° from Sausalito, Marin County, California, United States [?] 7.0 km Northwest bearing 335° from San Francisco, San Francisco County, California, United States 73.5 km Northwest bearing 318° from San Jose, Santa Clara County, California, United States
Last position:	2025-08-31 20:16:51 UTC (15d 7h7m ago) 2025-08-31 13:16:51 PDT local time at Sausalito, United States [?]
Course:	2° – heading 5°
Speed:	15 km/h
Last path:	WDJ9951>ais via SUNSET
Positions stored:	81

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.