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 TANSHUMARU - show graphs
Callsign: 7JTV
MMSI number: 431175000
IMO number: 737278
Navigational status: Under way (engine) (0)
Vessel class: Fishing (30)
Destination: >JP IMB OFF (ETA Jul21 07:00)
Location: 34°24.74' N 133°56.05' E - locator PM64XJ28CW - show map
8.0 km South bearing 190° from Tamano, Okayama, Japan [?]
13.1 km Northeast bearing 36° from Sakaide, Kagawa, Japan
27.7 km South bearing 180° from Okayama-shi, Okayama, Japan
118.4 km West bearing 255° from Kōbe-shi, Hyōgo, Japan
Last position: 2025-07-21 03:10:36 UTC (17h22m ago)
2025-07-21 12:10:36 JST local time at Tamano, Japan [?]
Course: 254.7° – heading 254°
Speed: 20 km/h
Dimensions: length 49 m width 9 m draught 5.1 m
Last path: 7JTV>ais via JG3HLX
Positions stored: 5252
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