Callsign:	WDB9821
MMSI number:	366983440
IMO number:	973033
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	MARQUETTE MI (ETA Nov22 12:00)
Location:	42°56.74' N 82°26.23' W - locator EN82SW76MW - show map 3.0 km South bearing 200° from Port Huron, Saint Clair County, Michigan, United States [?] 5.5 km Northeast bearing 48° from Marysville, Saint Clair County, Michigan, United States 84.5 km Northeast bearing 36° from Detroit, Wayne County, Michigan, United States 98.0 km West bearing 268° from London, Ontario, Canada
Last position:	2023-11-29 17:05:41 UTC (1d 30m ago) 2023-11-29 12:05:41 EST local time at Port Huron, United States [?]
Course:	46° – heading 45°
Speed:	17 km/h
Dimensions:	length 257 m width 23 m draught 0.0 m
Last path:	WDB9821>ais via YB8XM-AIS
Positions stored:	132352

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.