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 HMS IRON DUKE - show graphs
Callsign: GCOB
MMSI number: 234603904
IMO number: 577422
Navigational status: Moored (5)
Vessel class: Military operations (35)
Location: 50°48.63' N 1°06.19' W - locator IO90KT74OM - show map
1.5 km Northwest bearing 327° from Portsmouth, City of Portsmouth, England, United Kingdom [?]
2.5 km Northeast bearing 47° from Gosport, Hampshire, England, United Kingdom
103.2 km Southwest bearing 222° from London, Greater London, England, United Kingdom
105.2 km Southwest bearing 222° from City of London, Greater London, England, United Kingdom
Last position: 2025-02-11 14:15:44 UTC (7h12m ago)
2025-02-11 14:15:44 GMT local time at Portsmouth, United Kingdom [?]
Course: 183.400009° – heading 286°
Speed: 0 km/h
Dimensions: length 0 m width 0 m draught 7.2 m
Last path: GCOB>ais via G7RUH
Positions stored: 1863
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