Callsign:	WDL4732
MMSI number:	368134280
IMO number:	322518
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	WILMETTE (ETA ***00 00:00)
Location:	41°39.82' N 87°45.20' W - locator EN61CP99OG - show map 288.0 m North bearing 346° from Crestwood, Cook County, Illinois, United States [?] 1.4 km Southwest bearing 244° from Alsip, Cook County, Illinois, United States 22.4 km Southwest bearing 203° from Chicago, Cook County, Illinois, United States 48.2 km East bearing 103° from Aurora, Kane County, Illinois, United States
Last position:	2025-07-12 15:52:48 UTC (16d 2h22m ago) 2025-07-12 10:52:48 CDT local time at Crestwood, United States [?]
Course:	299° – heading 511°
Speed:	9 km/h
Dimensions:	length 8 m width 8 m draught 2.0 m
Last path:	WDL4732>ais via Snhnry
Positions stored:	12750

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.