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 EXCALIBUR - show graphs
Map loading...
Callsign: MZMK4
MMSI number: 235100203
Navigational status: Undefined/default (15)
Vessel class: (0)
Destination: CLASS B
Location: 50°46.33' N 1°07.83' W - locator IO90KS45HI - show map - static map
1.6 miles South bearing 182° from Gosport, Hampshire, England, United Kingdom [?]
2.5 miles Southwest bearing 223° from Portsmouth, City of Portsmouth, England, United Kingdom
66.9 miles Southwest bearing 221° from London, Greater London, England, United Kingdom
68.1 miles Southwest bearing 222° from City of London, Greater London, England, United Kingdom
Last position: 2016-06-19 06:42:05 EDT (249d 23h52m ago)
2016-06-19 11:42:05 BST local time at Gosport, United Kingdom [?]
Course: 241° – heading 511°
Speed: 9 MPH
Dimensions: length 10 m draught 0.0 m
Last path: MZMK4>ais via M6FGP
Positions stored: 371
Stations near current position of EXCALIBUR - show more
callsign distance last heard - EST      callsign distance last heard - EST
JO-DAN IV234.5 yards 289°2017-02-22 05:56:49 FREEDOM0.3 miles 17°2017-02-21 11:56:40
GENTLE ZEPHYR0.3 miles 216°2017-02-19 14:45:20 MEERKAT0.3 miles 261°2017-02-19 11:21:52
GITE0.5 miles 180°2017-02-17 06:32:33 NUTMEG0.6 miles 257°2017-02-13 05:35:57
BLUE THUNDER0.6 miles 36°2017-02-24 05:32:11 SWORDFISH WH150.7 miles 69°2017-02-24 01:56:28
CW78 (UNMANNED #0.7 miles 274°2017-02-16 08:21:25 DW73790.7 miles 340°2017-02-24 05:34:04
UKSA AMBITION0.7 miles 262°2017-02-22 13:24:03 MOJO0.8 miles 269°2017-02-18 08:01:05
SMIT NEYLAND0.8 miles 263°2017-02-22 09:55:26 PORTSEA RESCUE 10.9 miles 268°2017-02-05 09:50:09
NORTHERN SPIRIT0.9 miles 38°2017-02-24 05:34:10 CHALLENGER 40.9 miles 77°2017-02-05 09:39:08
235114873 UK0.9 miles 87°2017-02-19 07:50:23 GOSPORT ILB0.9 miles 299°2017-02-22 05:57:49
GOSPORT LIFEBOAT0.9 miles 298°2017-02-20 14:55:13 ST CLARE0.9 miles 73°2017-02-24 05:33:10
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