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AIS vessel SEIYU MARU - show graphs
Callsign: JD3531
MMSI number: 431004475
IMO number: 682174
Navigational status: Undefined/default (15)
Vessel class: Cargo (70)
Destination: >JP YAT WS (ETA Feb01 01:00)
Location: 34°24.93' N 134°12.37' E - locator PM74CJ49RR - show map
7.8 km South bearing 165° from Tonoshō, Kagawa, Japan [?]
10.7 km North bearing 16° from Shido, Kagawa, Japan
94.5 km West bearing 251° from Kōbe-shi, Hyōgo, Japan
122.6 km West bearing 256° from Ōsaka-shi, Ōsaka, Japan
Last position: 2026-01-30 08:17:34 UTC (5d 1h57m ago)
2026-01-30 17:17:34 JST local time at Tonoshō, Japan [?]
Course: 288° – heading 287°
Speed: 24 km/h
Dimensions: length 60 m width 10 m draught 3.6 m
Last path: JD3531>ais via JG3HLX
Positions stored: 95282
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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