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 SEIHO MARU - show graphs
Callsign: JD4483
MMSI number: 431012915
Navigational status: Under way (engine) (0)
Vessel class: Tug (52)
Destination: >JP MIZ (ETA Nov20 00:00)
Location: 34°24.22' N 133°48.38' E - locator PM64VJ66SV - show map
6.5 miles North bearing 338° from Sakaide, Kagawa, Japan [?]
8.4 miles North bearing 9° from Marugame, Kagawa, Japan
19.3 miles South bearing 202° from Okayama-shi, Okayama, Japan
58.2 miles Southwest bearing 241° from Himeji, Hyōgo, Japan
Last position: 2024-05-17 19:24:53 EDT (2d 22h36m ago)
2024-05-18 08:24:53 JST local time at Sakaide, Japan [?]
Course: 127° – heading 127°
Speed: 14 MPH
Dimensions: length 37 m width 9 m draught 3.5 m
Last path: JD4483>ais via JG3HLX
Positions stored: 116
Stations near current position of SEIHO MARU - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
KOHO MARU390.5 yards 110°2024-05-17 23:00:00 HAKUSHIN MARU0.5 miles 277°2024-05-18 07:13:51
SIRIUS0.5 miles 237°2024-05-17 22:33:59 RYOSEI MARU0.5 miles 242°2024-05-20 05:50:25
SHINKO MARU0.5 miles 262°2024-05-20 10:38:33 ATAGO0.5 miles 243°2024-05-20 05:18:24
SILVER LIBRA0.6 miles 259°2024-05-18 11:09:58 OCEAN ACE 110.6 miles 269°2024-05-17 11:56:40
ZUIHO MARU0.7 miles 285°2024-04-28 01:22:37 MATSUYAMA MARU NO.150.7 miles 261°2024-05-18 07:33:51
NISSHIN MARU0.7 miles 252°2024-05-04 22:18:59 JG5KAY-51.4 miles 157°2024-05-19 02:06:26
BRAVE RUBY1.7 miles 176°2024-05-10 05:08:14 A SUWA1.8 miles 173°2024-05-14 19:34:43
JA5/KA0451.8 miles 245°2024-05-03 22:15:44 PACIFIC BUSAN1.8 miles 155°2024-05-17 19:48:54
BLUE KINGDOM1.9 miles 182°2024-05-18 09:46:56 HAKUYOMARU2.0 miles 145°2024-05-17 17:30:50
OPALO2.0 miles 145°2024-05-18 10:59:57 NAGARA2.0 miles 146°2024-05-20 09:58:32
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