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 URSA - show graphs
Callsign: WDI5413
MMSI number: 367708290
Vessel class: Sailing (36)
Location: 42°20.30' N 70°56.98' W - locator FN42MI61AE - show map
3.1 miles Southeast bearing 146° from Winthrop, Suffolk County, Massachusetts, United States [?]
3.3 miles Northwest bearing 320° from Hull, Plymouth County, Massachusetts, United States
5.1 miles East bearing 86° from South Boston, Suffolk County, Massachusetts, United States
5.8 miles East bearing 104° from Boston, Suffolk County, Massachusetts, United States
Last position: 2024-08-10 16:54:50 EDT (84d 15h20m ago)
2024-08-10 16:54:50 EDT local time at Winthrop, United States [?]
Course: 49° – heading 45°
Speed: 7 MPH
Last path: WDI5413>ais via kx1t
Positions stored: 22
Stations near current position of URSA - show more
callsign distance last heard - EST      callsign distance last heard - EST
MIMI207.7 yards 57°2024-10-04 15:03:32 SEA BEAGLE214.6 yards 311°2024-10-05 12:19:56
M/Y STINGRAY292.8 yards 257°2024-10-06 15:09:16 CAPT'N JAKE394.7 yards 250°2024-10-15 10:59:42
MAGIC DRAGON449.3 yards 88°2024-10-17 10:34:20 MARIA JO-ANN0.4 miles 229°2024-10-31 16:34:27
MENHADEN0.5 miles 211°2024-10-17 09:48:06 GHOST0.5 miles 215°2024-10-25 14:42:28
WILLIN0.7 miles 124°2024-10-08 10:37:09 F/V FISHERMAN0.8 miles 81°2024-10-25 12:27:25
IVER PROSPERITY0.8 miles 276°2024-11-03 07:14:36 ASTRA MARE1.0 miles 130°2024-11-02 16:48:52
RIG VI1.1 miles 132°2024-10-05 12:51:26 MERIDIAN1.1 miles 40°2024-10-22 08:21:24
R/V RESOLUTION1.2 miles 131°2024-10-16 10:26:10 GENESIS VISION1.3 miles 272°2024-11-03 07:11:34
CATALYST1.5 miles 129°2024-10-30 13:12:19 CG291861.5 miles 156°2024-11-02 15:26:01
KATZ ON THE LOOSE1.6 miles 270°2024-10-29 16:58:02 CODZILLA1.6 miles 41°2024-10-29 08:37:36
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