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 AZUMA MARU NO.21 - show graphs
Callsign: JD3873
MMSI number: 431006718
IMO number: 758088
Navigational status: Under way (engine) (0)
Vessel class: Tanker (80)
Destination: >JP RYO OFF
Location: 37°25.23' N 138°21.33' E - locator PM97EK20PW - show map
18.2 km West bearing 289° from Kashiwazaki, Niigata, Japan [?]
32.0 km North bearing 19° from Jōetsu, Niigata, Japan
79.5 km Southwest bearing 228° from Niigata-shi, Niigata, Japan
86.9 km North bearing 10° from Nagano-shi, Nagano, Japan
Last position: 2025-02-11 04:21:41 UTC (1d 14h16m ago)
2025-02-11 13:21:41 JST local time at Kashiwazaki, Japan [?]
Course: 17° – heading 13°
Speed: 24 km/h
Dimensions: length 105 m width 16 m draught 6.3 m
Last path: JD3873>ais via JH0WSL
Positions stored: 37738
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