Callsign:	WCY5602
MMSI number:	366969740
IMO number:	450430
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	SFO BAY
Location:	37°55.25' N 122°25.32' W - locator CM87SW91IA - show map 8.1 km Southwest bearing 236° from San Pablo, Contra Costa County, California, United States [?] 9.5 km Southwest bearing 239° from Rollingwood, Contra Costa County, California, United States 16.2 km North bearing 359° from San Francisco, San Francisco County, California, United States 79.5 km Northwest bearing 324° from San Jose, Santa Clara County, California, United States
Last position:	2026-01-13 18:09:38 UTC (4h13m ago) 2026-01-13 10:09:38 PST local time at San Pablo, United States [?]
Course:	344.89999389648° – heading 511°
Speed:	10 km/h
Dimensions:	length 21 m width 8 m draught 3.6 m
Last path:	WCY5602>ais via SUNSET
Positions stored:	25461

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.