Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
AIS vessel MARY C - show graphs
Callsign: WDF6698
MMSI number: 367476950
IMO number: 12386
Navigational status: Moored (5)
Vessel class: Tug (52)
Destination: USLMJ<>USLMJ (ETA ***00 24:60)
Location: 41°40.34' N 88°01.67' W - locator EN51XQ61QI - show map
2.2 km West bearing 266° from Lemont, Cook County, Illinois, United States [?]
4.5 km Southeast bearing 131° from Bolingbrook, Will County, Illinois, United States
26.2 km East bearing 112° from Aurora, Kane County, Illinois, United States
37.0 km Southwest bearing 238° from Chicago, Cook County, Illinois, United States
Last position: 2025-01-16 22:45:32 UTC (14m40s ago)
2025-01-16 16:45:32 CST local time at Lemont, United States [?]
Course: 207.1° – heading 511°
Speed: 0 km/h
Dimensions: length 15 m width 7 m draught 1.8 m
Last path: WDF6698>ais via WD9EPF
Positions stored: 337110
About this site
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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS