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 GPS ALERT - show graphs
Callsign: MDPD4
MMSI number: 232017252
IMO number: 705890
Navigational status: Under way (engine) (0)
Vessel class: High Speed Catamaran (40)
Destination: MEDWAY (ETA Dec03 17:00)
Location: 51°29.93' N 0°04.34' E - locator JO01AL89QR - show map
3.6 miles Northeast bearing 50° from Blackheath, Greater London, England, United Kingdom [?]
3.9 miles East bearing 103° from Poplar, Greater London, England, United Kingdom
7.1 miles East bearing 98° from City of London, Greater London, England, United Kingdom
8.5 miles East bearing 94° from London, Greater London, England, United Kingdom
Last position: 2024-06-12 05:05:05 EDT (1d 7h39m ago)
2024-06-12 10:05:05 BST local time at Blackheath, United Kingdom [?]
Course: 360° – heading 271°
Speed: 0 MPH
Dimensions: length 18 m width 5 m draught 1.2 m
Last path: MDPD4>ais via YB8XM-AIS
Positions stored: 201
Stations near current position of GPS ALERT - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
BERT PRIOR282.3 yards 247°2024-06-06 11:05:52 PROSPER464.7 yards 256°2024-06-11 23:31:19
DAME VERA LYNN0.5 miles 250°2024-06-13 12:23:20 BEN WOOLLACOTT0.5 miles 239°2024-06-13 05:00:20
M7ELU-50.9 miles 224°2024-05-26 13:44:22 M7ELU-120.9 miles 224°2024-06-08 09:11:01
M7ELU-70.9 miles 224°2024-05-18 12:49:29 STEEL SAPPHIRE1.1 miles 39°2024-05-27 09:37:00
NEW MOMENTUM1.1 miles 269°2024-06-13 12:22:20 M7ELU-111.2 miles 208°2024-05-25 15:51:24
GPS VINCIA1.3 miles 259°2024-06-13 04:06:20 RESOLVE1.8 miles 61°2024-05-21 04:42:39
SWS ESSEX1.8 miles 266°2024-06-11 09:25:19 2E0IJZ B1.8 miles 273°2024-05-30 18:25:14
2E0IJZ-B1.8 miles 273°2024-05-30 18:25:24 2E0JRY-DP1.9 miles 237°2024-06-13 12:32:43
REGAIN1.9 miles 262°2024-06-13 05:12:20 REDOUBT2.0 miles 261°2024-06-13 03:29:20
2E0LPZ-N2.1 miles 88°2024-05-29 17:14:43 2E0LPZ-D2.1 miles 88°2024-06-12 17:38:46
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