Callsign:	WCY5602
MMSI number:	366969740
IMO number:	450430
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	SFO BAY
Location:	37°46.48' N 122°23.05' W - locator CM87TS35VW - show map 3.1 km East bearing 91° from San Francisco, San Francisco County, California, United States [?] 10.5 km West bearing 252° from Oakland, Alameda County, California, United States 64.8 km Northwest bearing 318° from San Jose, Santa Clara County, California, United States
Last position:	2025-12-04 17:21:47 UTC (10d 11h29m ago) 2025-12-04 09:21:47 PST local time at San Francisco, United States [?]
Course:	32° – heading 511°
Speed:	1 km/h
Dimensions:	length 21 m width 8 m draught 3.6 m
Last path:	WCY5602>ais via AA6CE
Positions stored:	25250

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.