Callsign:	WDK4179
MMSI number:	368052630
Navigational status:	Undefined/default (15)
Vessel class:	Passenger (60)
Destination:	USSEA>USSFO43.5 (ETA Sep07 16:00)
Location:	37°46.51' N 122°22.79' W - locator CM87TS46KB - show map 3.5 km East bearing 89° from San Francisco, San Francisco County, California, United States [?] 10.6 km North bearing 10° from Brisbane, San Mateo County, California, United States 64.6 km Northwest bearing 319° from San Jose, Santa Clara County, California, United States
Last position:	2025-11-09 03:42:03 UTC (1h57m ago) 2025-11-08 19:42:03 PST local time at San Francisco, United States [?]
Course:	350.600006° – heading 351°
Speed:	9 km/h
Dimensions:	length 42 m width 10 m draught 2.0 m
Last path:	WDK4179>ais via AA6CE
Positions stored:	52555

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.