Callsign:	338535845
MMSI number:	338535845
IMO number:	316834
Navigational status:	Under way (engine) (0)
Vessel class:	Port tender (53)
Location:	41°51.47' N 87°33.53' W - locator EN61FU25WV - show map 7.6 km East bearing 83° from Chicago, Cook County, Illinois, United States [?] 16.2 km East bearing 85° from Cicero, Cook County, Illinois, United States 64.0 km East bearing 80° from Aurora, Kane County, Illinois, United States
Last position:	2025-06-16 16:16:20 UTC (38d 27m ago) 2025-06-16 11:16:20 CDT local time at Chicago, United States [?]
Course:	73° – heading 73°
Speed:	39 km/h
Dimensions:	length 12 m width 4 m draught 0.0 m
Last path:	338535845>ais via WD9EPF
Positions stored:	1015

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.