Callsign:	JD4931
MMSI number:	431016663
Navigational status:	Under way (engine) (0)
Vessel class:	Cargo (70)
Destination:	JP OIP OFF (ETA Jul25 19:30)
Location:	34°24.89' N 134°11.76' E - locator PM74CJ39MN - show map 7.7 km South bearing 171° from Tonoshō, Kagawa, Japan [?] 10.4 km North bearing 12° from Shido, Kagawa, Japan 95.4 km West bearing 251° from Kōbe-shi, Hyōgo, Japan 123.5 km West bearing 256° from Ōsaka-shi, Ōsaka, Japan
Last position:	2025-07-24 20:40:18 UTC (1d 15h29m ago) 2025-07-25 05:40:18 JST local time at Tonoshō, Japan [?]
Course:	291° – heading 293°
Speed:	23 km/h
Dimensions:	length 75 m width 12 m draught 3.8 m
Last path:	JD4931>ais via JG3HLX
Positions stored:	61627

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.