Callsign:	JD4791
MMSI number:	431015494
Navigational status:	Under way (engine) (0)
Vessel class:	(57)
Location:	34°14.61' N 134°59.45' E - locator PM74LF88VL - show map 14.5 km Southeast bearing 145° from Sumoto, Hyōgo, Japan [?] 16.3 km West bearing 277° from Wakayama-shi, Wakayama, Japan 52.8 km South bearing 200° from Kōbe-shi, Hyōgo, Japan 68.5 km Southwest bearing 223° from Ōsaka-shi, Ōsaka, Japan
Last position:	2025-09-09 22:42:29 UTC (10d 3h30m ago) 2025-09-10 07:42:29 JST local time at Sumoto, Japan [?]
Course:	262° – heading 254°
Speed:	22 km/h
Dimensions:	length 29 m width 4 m draught 0.0 m
Last path:	JD4791>ais via JG3HLX
Positions stored:	79

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.