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 CHALLENGER - show graphs
Map loading...
Callsign: WDB9802
MMSI number: 366983070
Vessel class: Fishing (30)
Location: 42°36.89' N 70°39.15' W - locator FN42QO17QN - show map - static map
0.5 miles East bearing 99° from Gloucester, Essex County, Massachusetts, United States [?]
3.3 miles Southwest bearing 210° from Rockport, Essex County, Massachusetts, United States
27.3 miles Northeast bearing 49° from Boston, Suffolk County, Massachusetts, United States
28.0 miles Northeast bearing 46° from South Boston, Suffolk County, Massachusetts, United States
Last position: 2018-04-24 21:33:28 EDT (5m11s ago)
2018-04-24 21:33:28 EDT local time at Gloucester, United States [?]
Course: 342.1000061035156° – heading 511°
Last path: WDB9802>ais via KB1DML
Positions stored: 3723
Stations near current position of CHALLENGER - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
ENDEAVOUR72.4 yards 233°2018-04-24 21:29:44 KARMA96.7 yards 44°2018-04-10 18:52:50
366859760147.3 yards 325°2018-04-14 16:32:31 367925000156.9 yards 118°2018-04-22 12:03:08
367596930166.0 yards 267°2018-03-30 09:16:53 MIDNIGHT SUN169.5 yards 9°2018-04-24 13:38:07
MICHAEL CRAVEN174.8 yards 112°2018-04-24 16:04:33 FALCON238.0 yards 107°2018-04-24 09:11:30
CLAUDIA MARIE263.9 yards 181°2018-03-29 14:39:53 367458880269.7 yards 171°2018-04-24 21:37:15
MISS TRISH II0.3 miles 238°2018-04-24 21:37:15 3673917700.4 miles 237°2018-04-14 03:53:13
LISA ANN 30.4 miles 194°2018-04-24 15:50:03 CAPT THOMAS0.4 miles 208°2018-04-09 10:10:15
ROSEWAY0.4 miles 199°2018-04-22 20:02:54 AMANDA LEIGH0.5 miles 186°2018-04-24 21:07:15
F/V OSPREY0.5 miles 235°2018-04-24 21:34:00 W4RIG-11.0 miles 52°2018-04-24 21:32:47
KA1BTK-101.4 miles 334°2018-04-24 14:45:59 KC1BAZ-91.7 miles 315°2018-04-08 12:46:28
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