Callsign:	WDC3248
MMSI number:	367004670
IMO number:	842454
Navigational status:	Reserved (12)
Vessel class:	(57)
Location:	37°51.45' N 122°23.56' W - locator CM87TU25UT - show map 5.9 km East bearing 108° from Tiburon, Marin County, California, United States [?] 6.5 km East bearing 105° from Belvedere, Marin County, California, United States 9.5 km North bearing 14° from San Francisco, San Francisco County, California, United States 72.4 km Northwest bearing 323° from San Jose, Santa Clara County, California, United States
Last position:	2025-10-13 05:25:10 UTC (7d 22h43m ago) 2025-10-12 22:25:10 PDT local time at Tiburon, United States [?]
Course:	360° – heading 0°
Speed:	14 km/h
Dimensions:	length 20 m width 8 m draught 0.0 m
Last path:	WDC3248>ais via SUNSET
Positions stored:	46571

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.