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 RYOUKEN MARU NO.3 - show graphs
Callsign: JD5486
MMSI number: 431026644
IMO number: 71563
Navigational status: Under way (engine) (0)
Vessel class: Tanker (80)
Destination: >JP SKD OFF (ETA Nov06 20:45)
Location: 34°24.79' N 134°17.44' E - locator PM74DJ49VD - show map
12.6 km Southeast bearing 128° from Tonoshō, Kagawa, Japan [?]
14.7 km Northeast bearing 47° from Shido, Kagawa, Japan
87.3 km West bearing 250° from Kōbe-shi, Hyōgo, Japan
115.2 km West bearing 255° from Ōsaka-shi, Ōsaka, Japan
Last position: 2025-11-06 09:42:07 UTC (1d 20h9m ago)
2025-11-06 18:42:07 JST local time at Tonoshō, Japan [?]
Course: 261° – heading 261°
Speed: 22 km/h
Dimensions: length 69 m width 11 m draught 4.8 m
Last path: JD5486>ais via JG3HLX
Positions stored: 10642
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