Callsign:	WDN7577
MMSI number:	368309740
IMO number:	333048
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	EVERETT (ETA May19 20:00)
Location:	47°17.34' N 122°26.25' W - locator CN87SG79LJ - show map 4.1 km North bearing 7° from Tacoma, Pierce County, Washington, United States [?] 8.2 km Northwest bearing 312° from Fife, Pierce County, Washington, United States 36.1 km South bearing 193° from Seattle, King County, Washington, United States
Last position:	2025-03-02 15:41:57 UTC (10d 16h49m ago) 2025-03-02 07:41:57 PST local time at Tacoma, United States [?]
Course:	99° – heading 280°
Speed:	8 km/h
Dimensions:	length 20 m width 8 m draught 2.2 m
Last path:	WDN7577>ais via KB7RYY
Positions stored:	11369

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.