Callsign:	WDM7157
MMSI number:	368231420
Navigational status:	Moored (5)
Vessel class:	Pleasure (37)
Location:	37°48.84' N 122°26.79' W - locator CM87ST65JI - show map 4.9 km Northwest bearing 331° from San Francisco, San Francisco County, California, United States [?] 6.7 km South bearing 172° from Tiburon, Marin County, California, United States 6.7 km South bearing 166° from Belvedere, Marin County, California, United States 71.7 km Northwest bearing 318° from San Jose, Santa Clara County, California, United States
Last position:	2025-06-19 17:39:31 UTC (38d 9h4m ago) 2025-06-19 10:39:31 PDT local time at San Francisco, United States [?]
Course:	82° – heading 511°
Speed:	15 km/h
Last path:	WDM7157>ais via SUNSET
Positions stored:	172

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.