Callsign:	JD4471
MMSI number:	431012214
IMO number:	865427
Navigational status:	Under way (engine) (0)
Vessel class:	Cargo (70)
Destination:	>JP SHISAKASHIMA (ETA Feb03 00:00)
Location:	34°26.16' N 134°01.86' E - locator PM74AK34RO - show map 10.7 km North bearing 354° from Takamatsu-shi, Kagawa, Japan [?] 18.1 km Northwest bearing 314° from Shido, Kagawa, Japan 26.6 km South bearing 161° from Okayama-shi, Okayama, Japan 109.2 km West bearing 255° from Kōbe-shi, Hyōgo, Japan
Last position:	2026-02-02 19:03:24 UTC (3d 22h11m ago) 2026-02-03 04:03:24 JST local time at Takamatsu-shi, Japan [?]
Course:	241° – heading 242°
Speed:	17 km/h
Dimensions:	length 70 m width 13 m draught 4.9 m
Last path:	JD4471>ais via JG3HLX
Positions stored:	65255

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.