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 MIWAMARU - show graphs
Callsign: JD4411
MMSI number: 431011761
IMO number: 3072
Navigational status: Under way (engine) (0)
Vessel class: Tanker (80)
Destination: >JP OTK (ETA Dec18 13:00)
Location: 34°19.78' N 137°13.47' E - locator PM84OH69WD - show map
37.6 km South bearing 186° from Tahara, Aichi, Japan [?]
38.3 km Southeast bearing 116° from Toba, Mie, Japan
99.0 km South bearing 163° from Nagoya-shi, Aichi, Japan
128.0 km Southwest bearing 236° from Shizuoka-shi, Shizuoka, Japan
Last position: 2026-01-07 01:11:07 UTC (1d 8h29m ago)
2026-01-07 10:11:07 JST local time at Tahara, Japan [?]
Course: 74° – heading 78°
Speed: 20 km/h
Dimensions: length 64 m width 10 m draught 4.4 m
Last path: JD4411>ais via Gamagori1240
Positions stored: 83238
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