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 RYOYU MARU - show graphs
Map loading...
Callsign: JD4616
MMSI number: 431013295
IMO number: 873993
Navigational status: Under way (engine) (0)
Vessel class: Tanker (80)
Destination: >JP UBJ OFF (ETA Jun27 02:00)
Location: 35°32.07' N 139°53.76' E - locator PM95WM78MG - show map - static map
9.4 miles South bearing 177° from Urayasu, Tōkyō, Japan [?]
12.0 miles Southwest bearing 204° from Funabashi, Chiba, Japan
15.5 miles Northeast bearing 67° from Yokohama-shi, Kanagawa, Japan
15.7 miles Southeast bearing 133° from Tokyo, Tōkyō, Japan
Last position: 2021-07-15 05:41:35 EDT (16d 17h46m ago)
2021-07-15 18:41:35 JST local time at Urayasu, Japan [?]
Course: 26° – heading 30°
Speed: 14 MPH
Dimensions: length 54 m width 10 m draught 4.0 m
Last path: JD4616>ais via GM7HHB
Positions stored: 7011
Stations near current position of RYOYU MARU - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
MATSUBISHI MARU0.5 miles 309°2021-07-30 23:28:30 SUMIYO1.0 miles 190°2021-07-29 16:07:19
NANIWA MARU NO.651.0 miles 78°2021-07-26 10:30:50 KUROSHIO MARU1.1 miles 126°2021-07-30 00:10:35
SHINKOU MARU1.2 miles 156°2021-07-31 05:03:48 AIKOUMARU NO.81.5 miles 67°2021-07-31 05:59:50
SOUSHINMARU1.5 miles 143°2021-07-30 04:59:52 MARI JONE1.6 miles 122°2021-07-24 01:07:26
TAI DA2.1 miles 302°2021-07-29 21:34:28 HAYABUSA2.2 miles 88°2021-07-28 02:29:02
KATORIMARU2.3 miles 144°2021-07-30 03:07:47 CORAL GEM2.3 miles 333°2021-07-25 17:30:24
TOKUYO MARU NO212.6 miles 24°2021-07-28 01:10:00 ATAGO MARU2.7 miles 126°2021-07-30 03:59:49
DAIO2.7 miles 123°2021-07-30 04:16:50 HARUNA2.7 miles 126°2021-07-31 20:38:30
TOKUYO MARU NO.152.7 miles 211°2021-07-31 13:23:13 LEICESTER2.8 miles 126°2021-07-31 01:22:35
FUJI MARU2.8 miles 292°2021-07-29 18:01:31 TAISHIN MARU2.8 miles 196°2021-07-19 21:37:30
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