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 AN DONG 68 - show graphs
Callsign: BTDW
MMSI number: 412324880
IMO number: 231200
Navigational status: Under way (engine) (0)
Vessel class: Cargo (70)
Destination: KR BUSAN (ETA Sep26 03:00)
Location: 33°49.44' N 137°06.57' E - locator PM83NT37DS - show map
77.0 km South bearing 162° from Toba, Mie, Japan [?]
82.4 km Southeast bearing 153° from Ise, Mie, Japan
107.7 km South bearing 194° from Toyohashi, Aichi, Japan
112.9 km Southwest bearing 211° from Hamamatsu, Shizuoka, Japan
Last position: 2025-09-28 14:52:10 UTC (2d 1h35m ago)
2025-09-28 23:52:10 JST local time at Toba, Japan [?]
Course: 66° – heading 48°
Speed: 21 km/h
Dimensions: length 99 m width 16 m draught 5.4 m
Last path: BTDW>ais via Gamagori1240
Positions stored: 4684
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