Callsign:	JD4777
MMSI number:	431014827
IMO number:	900928
Navigational status:	Under way (engine) (0)
Vessel class:	Cargo (70)
Destination:	>JP MAR HOURAI (ETA Jan20 15:00)
Location:	34°18.48' N 133°45.74' E - locator PM64VH13LW - show map 3.4 km Northwest bearing 325° from Marugame, Kagawa, Japan [?] 8.1 km West bearing 263° from Sakaide, Kagawa, Japan 42.4 km South bearing 202° from Okayama-shi, Okayama, Japan 102.7 km Southwest bearing 237° from Himeji, Hyōgo, Japan
Last position:	2026-01-21 06:51:05 UTC (5h10m ago) 2026-01-21 15:51:05 JST local time at Marugame, Japan [?]
Course:	241.3° – heading 239°
Speed:	16 km/h
Dimensions:	length 75 m width 12 m draught 4.7 m
Last path:	JD4777>ais via JG3HLX
Positions stored:	60246

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.