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 OKADAMARU - show graphs
Callsign: 431017338
MMSI number: 431017338
IMO number: 641376
Navigational status: Under way (engine) (0)
Vessel class: Fishing (30)
Location: 36°23.03' N 140°37.38' E - locator QM06HJ42SC - show map
4.8 miles North bearing 15° from Ōarai, Ibaraki, Japan [?]
5.0 miles East bearing 90° from Katsuta, Ibaraki, Japan
70.7 miles Northeast bearing 47° from Tokyo, Tōkyō, Japan
84.8 miles Northeast bearing 40° from Yokohama-shi, Kanagawa, Japan
Last position: 2024-05-17 17:15:53 EDT (5d 5h47m ago)
2024-05-18 06:15:53 JST local time at Ōarai, Japan [?]
Course: 105°
Speed: 4 MPH
Dimensions: length 12 m width 4 m draught 0.0 m
Last path: 431017338>ais via GM7HHB
Positions stored: 7907
Stations near current position of OKADAMARU - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
JG1AEH-10473.0 yards 240°2024-05-20 03:57:51 THOUSAND SPRING477.6 yards 142°2024-05-21 21:47:12
YUUM ARU0.9 miles 114°2024-05-21 02:33:11 TAISENMARU1.2 miles 355°2024-04-25 18:01:27
MARBERA1.2 miles 24°2024-05-20 22:53:56 YU AN1.6 miles 339°2024-04-24 01:59:26
BURUMAN5501.8 miles 342°2024-05-21 21:40:12 BURUMAN4001.9 miles 343°2024-05-21 20:59:12
BURUMAN3001.9 miles 342°2024-05-22 01:37:12 HITACHI II1.9 miles 338°2024-05-21 04:03:57
JJ4HLS-92.3 miles 307°2024-05-04 22:42:31 EITAI2.4 miles 147°2024-05-19 16:41:32
DONG SHENG 723.0 miles 358°2024-05-13 17:25:23 HONG QIAO3.0 miles 357°2024-05-22 03:19:12
GREEN WAVE3.0 miles 358°2024-05-18 00:50:08 COURAGEOUS ACE3.0 miles 355°2024-05-09 13:25:14
KURAMAMARU3.0 miles 346°2024-05-22 03:14:00 SEACHANNMARU23.0 miles 130°2024-05-03 16:42:05
JQ1ZYV-N3.0 miles 254°2024-05-22 22:45:00 KANASA3.0 miles 345°2024-05-22 05:29:12
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