Callsign:	WDJ2504
MMSI number:	367758990
Navigational status:	Under way (engine) (0)
Vessel class:	(0)
Destination:	SFO:PIER3
Location:	37°46.73' N 122°22.72' W - locator CM87TS46NW - show map 3.6 km East bearing 83° from San Francisco, San Francisco County, California, United States [?] 9.9 km West bearing 253° from Oakland, Alameda County, California, United States 64.8 km Northwest bearing 319° from San Jose, Santa Clara County, California, United States
Last position:	2026-02-13 04:53:48 UTC (12d 7h51m ago) 2026-02-12 20:53:48 PST local time at San Francisco, United States [?]
Course:	348° – heading 511°
Speed:	11 km/h
Dimensions:	draught 4.0 m
Last path:	WDJ2504>ais via AA6CE
Positions stored:	1215

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.