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 CHELSEA - show graphs
Map loading...
Callsign: WDH7914
MMSI number: 367652830
Navigational status: Undefined/default (15)
Vessel class: Pleasure (37)
Location: 41°40.90' N 87°59.52' W - locator EN61AQ03WO - show map - static map
0.7 miles Northeast bearing 42° from Lemont, Cook County, Illinois, United States [?]
4.1 miles East bearing 106° from Bolingbrook, Will County, Illinois, United States
17.8 miles East bearing 108° from Aurora, Kane County, Illinois, United States
21.1 miles Southwest bearing 237° from Chicago, Cook County, Illinois, United States
Last position: 2016-05-09 13:43:30 EDT (321d 22h48m ago)
2016-05-09 12:43:30 CDT local time at Lemont, United States [?]
Course: 245°
Speed: 2 MPH
Dimensions: length 9 m width 4 m draught 0.0 m
Last path: WDH7914>ais via wd9epf
Positions stored: 24
Stations near current position of CHELSEA - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
DEREK E0.3 miles 64°2017-03-25 15:34:21 MIKE PLANCHE1.0 miles 254°2017-03-25 15:35:21
CHICAGO TRADER1.2 miles 251°2017-03-25 15:32:21 MARY C1.6 miles 66°2017-03-25 15:35:21
CHICAGO WARRIOR1.7 miles 251°2017-03-25 15:34:21 WILLIAM C1.9 miles 251°2017-03-25 15:29:21
ALBERT C2.1 miles 246°2017-03-25 15:32:21 CAPT ROGER D ADAMS2.2 miles 247°2017-03-18 16:25:05
MARGE MCFARLIN2.2 miles 246°2017-03-20 18:41:11 WINDY CITY2.4 miles 246°2017-03-24 12:39:19
CHRISTOPHER SCOTT2.7 miles 63°2017-03-25 14:29:16 KOOLCAT2.8 miles 63°2017-03-25 14:32:16
K9BAR3.2 miles 303°2017-03-27 12:20:56 GLADIATOR3.3 miles 245°2017-03-24 15:10:25
CHEROKEE3.3 miles 244°2017-03-12 22:09:13 ASHLEY DANIELSON3.4 miles 244°2017-03-25 14:18:12
EILEEN C3.4 miles 244°2017-03-24 12:15:18 LEMONT TRADER3.4 miles 243°2017-03-22 21:20:57
KAREN ANN3.5 miles 243°2017-03-22 21:53:57 ILLINI COURAGE3.9 miles 239°2017-03-24 21:53:07
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.
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