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AIS vessel KOHO MARU NO.21 - show graphs
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Callsign: JJ4046
MMSI number: 431501745
IMO number: 268021
Navigational status: Under way (engine) (0)
Vessel class: Tanker, carrying hazard/pollutant cat C (83)
Destination: >JP KSM (ETA Sep22 08:00)
Location: 36°38.72' N 141°03.07' E - locator QM06MP64DU - show map - static map
19.2 miles East bearing 105° from Takahagi, Ibaraki, Japan [?]
19.2 miles Southeast bearing 120° from Kitaibaraki, Ibaraki, Japan
92.8 miles Northeast bearing 56° from Saitama, Saitama, Japan
100.5 miles Northeast bearing 49° from Tokyo, Tōkyō, Japan
Last position: 2017-09-23 12:24:18 EDT (121d 13h42m ago)
2017-09-24 01:24:18 JST local time at Takahagi, Japan [?]
Course: 12° – heading 12°
Speed: 15 MPH
Dimensions: length 72 m width 12 m draught 4.6 m
Last path: JJ4046>ais via JI1-QOX
Positions stored: 12029
Stations near current position of KOHO MARU NO.21 - show more
callsign distance last heard - EST      callsign distance last heard - EST
RYOHO MARU NO.20.7 miles 130°2018-01-15 17:19:13 TAKUMI MARU0.9 miles 328°2018-01-19 04:47:25
KIRISHIMA MARU NO.50.9 miles 166°2018-01-21 21:57:12 TAIHEI MARU1.0 miles 211°2018-01-20 16:33:36
YUSEI MARU1.1 miles 255°2018-01-16 20:57:36 NITTAN MARU NO.211.1 miles 89°2018-01-21 12:29:52
ANTUR1.3 miles 187°2017-12-26 19:17:48 COSMO MARU1.4 miles 284°2018-01-21 15:19:21
SANKHOMARU NO381.4 miles 161°2018-01-19 13:45:20 HOSHO MARU1.4 miles 290°2018-01-18 08:31:36
CAPE SASANQUA1.5 miles 91°2018-01-16 19:53:37 MATISSE1.8 miles 81°2018-01-22 16:15:57
GYOKO MARU1.8 miles 289°2018-01-21 01:56:15 WAKABA NI SEI1.9 miles 185°2018-01-20 16:32:35
KORYU MARU2.0 miles 181°2018-01-20 19:59:04 KANYO MARU2.0 miles 66°2018-01-20 17:34:44
TENMAMARU2.0 miles 335°2018-01-18 08:08:33 KINREIKA2.2 miles 168°2018-01-22 16:38:47
NANIWA MARU NO.72.3 miles 49°2018-01-21 18:00:51 EISUI2.3 miles 303°2018-01-20 19:01:59
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.
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