Callsign:	WDF7733
MMSI number:	367487570
IMO number:	521851
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	MILWAUKEE 74
Location:	42°13.65' N 87°36.56' W - locator EN62EF64VO - show map 16.0 km Northeast bearing 50° from Glencoe, Cook County, Illinois, United States [?] 16.9 km Northeast bearing 38° from Winnetka, Cook County, Illinois, United States 42.1 km North bearing 5° from Chicago, Cook County, Illinois, United States 93.4 km South bearing 165° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position:	2025-01-17 04:05:30 UTC (55d 8h14m ago) 2025-01-16 22:05:30 CST local time at Glencoe, United States [?]
Course:	334° – heading 332°
Speed:	16 km/h
Dimensions:	length 164 m width 16 m draught 6.4 m
Last path:	WDF7733>ais via Snhnry
Positions stored:	52713

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.