Callsign:	WDB9821
MMSI number:	366983440
IMO number:	973033
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	BREVORT (ETA Jun30 03:00)
Location:	42°56.14' N 82°27.05' W - locator EN82SW54VN - show map 4.4 km Southwest bearing 208° from Port Huron, Saint Clair County, Michigan, United States [?] 6.1 km Southwest bearing 218° from Sarnia, Ontario, Canada 82.9 km Northeast bearing 36° from Detroit, Wayne County, Michigan, United States 99.2 km West bearing 267° from London, Ontario, Canada
Last position:	2025-07-04 12:56:03 UTC (18h13m ago) 2025-07-04 08:56:03 EDT local time at Port Huron, United States [?]
Course:	026.7° – heading 36°
Speed:	15 km/h
Dimensions:	length 257 m width 23 m draught 8.3 m
Last path:	WDB9821>ais via AIS-CK
Positions stored:	159356

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.