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 SATSUKI - show graphs
Callsign: JD3997
MMSI number: 431007429
IMO number: 774393
Navigational status: Under way (engine) (0)
Vessel class: Tanker (80)
Destination: >JP OSA 3K OFF (ETA Jul25 06:04)
Location: 34°18.74' N 137°00.80' E - locator PM84MH14OW - show map
24.2 km Southeast bearing 142° from Toba, Mie, Japan [?]
34.4 km Southeast bearing 123° from Ise, Mie, Japan
97.1 km South bearing 174° from Nagoya-shi, Aichi, Japan
139.5 km Southeast bearing 124° from Kyoto, Kyōto, Japan
Last position: 2025-07-24 04:17:17 UTC (10h58m ago)
2025-07-24 13:17:17 JST local time at Toba, Japan [?]
Course: 182.5° – heading 179°
Speed: 23 km/h
Dimensions: length 64 m width 10 m draught 3.5 m
Last path: JD3997>ais via Gamagori1240
Positions stored: 125485
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