Callsign:	WDF2159
MMSI number:	367425520
IMO number:	550761
Navigational status:	Under way (engine) (0)
Vessel class:	Passenger (60)
Destination:	SF BAY FERRY
Location:	37°47.16' N 122°21.95' W - locator CM87TS68CP - show map 4.9 km East bearing 75° from San Francisco, San Francisco County, California, United States [?] 8.6 km West bearing 256° from Oakland, Alameda County, California, United States 64.7 km Northwest bearing 320° from San Jose, Santa Clara County, California, United States
Last position:	2026-02-25 05:06:59 UTC (14h31m ago) 2026-02-24 21:06:59 PST local time at San Francisco, United States [?]
Course:	118.599998° – heading 511°
Speed:	49 km/h
Dimensions:	length 35 m width 8 m draught 0.0 m
Last path:	WDF2159>ais via AA6CE
Positions stored:	35311

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.