Callsign:	WTD4576
MMSI number:	366983840
IMO number:	606549
Navigational status:	Reserved (11)
Vessel class:	Towing (31)
Destination:	KETCHIKAN (ETA Jan04 02:00)
Location:	47°32.39' N 122°19.82' W - locator CN87UM09IN - show map 7.4 km South bearing 179° from Seattle, King County, Washington, United States [?] 8.8 km Southwest bearing 247° from Mercer Island, King County, Washington, United States 125.8 km Southeast bearing 142° from Victoria, British Columbia, Canada
Last position:	2025-12-31 17:11:25 UTC (1m58s ago) 2025-12-31 09:11:25 PST local time at Seattle, United States [?]
Course:	041.0° – heading 511°
Speed:	1 km/h
Dimensions:	length 26 m width 8 m draught 4.0 m
Last path:	WTD4576>ais via KB7RYY
Positions stored:	150771

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.