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 U SHOULD TRI - show graphs
Callsign: WDM4832
MMSI number: 316052354
Navigational status: Undefined/default (15)
Vessel class: Sailing (36)
Location: 41°43.91' N 70°43.02' W - locator FN41PR35XP - show map
3.1 miles West bearing 257° from Onset, Plymouth County, Massachusetts, United States [?]
5.2 miles West bearing 260° from Buzzards Bay, Barnstable County, Massachusetts, United States
44.9 miles South bearing 158° from South Boston, Suffolk County, Massachusetts, United States
46.7 miles South bearing 158° from Boston, Suffolk County, Massachusetts, United States
Last position: 2024-11-03 11:58:16 EST (7d 3h35m ago)
2024-11-03 11:58:16 EST local time at Onset, United States [?]
Course: 19° – heading 13°
Speed: 7 MPH
Dimensions: length 10 m width 7 m draught 0.0 m
Last path: WDM4832>ais via K1XP
Positions stored: 182
Stations near current position of U SHOULD TRI - show more
callsign distance last heard - EST      callsign distance last heard - EST
EW80800.9 miles 285°2024-11-10 15:33:03 CREST1.1 miles 181°2024-10-28 16:59:21
CHANGE ORDER1.4 miles 28°2024-11-10 14:37:47 OCEAN GIRL1.5 miles 14°2024-10-30 12:40:33
ANABELLE BARNES2.3 miles 171°2024-10-13 09:33:41 VOLANT II2.6 miles 231°2024-10-12 11:38:38
PAULA ANNE2.8 miles 243°2024-10-29 12:59:06 RED ADMIRAL2.8 miles 227°2024-10-20 14:51:29
SPIRIT2.8 miles 224°2024-10-30 16:08:01 SONRISA2.8 miles 243°2024-10-29 14:15:17
NO AGENDA2.8 miles 225°2024-10-20 15:15:33 AXOPAR 372.8 miles 243°2024-10-21 08:48:59
CHUMLINE2.9 miles 242°2024-11-03 17:46:05 ARTEMIS2.9 miles 222°2024-10-21 14:44:49
PONCHO2.9 miles 222°2024-11-03 15:49:48 JESSIE-LIN2.9 miles 230°2024-10-23 13:53:22
UNDINE2.9 miles 230°2024-10-28 13:16:49 KEEPER2.9 miles 220°2024-10-30 11:00:10
NEWWAVE 2.02.9 miles 230°2024-11-10 09:11:01 WINDSWEPT2.9 miles 230°2024-10-12 13:30:54
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