Callsign:	JG4113
MMSI number:	431301141
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Location:	34°27.61' N 134°27.54' E - locator PM74FL50BK - show map 25.4 km East bearing 96° from Tonoshō, Kagawa, Japan [?] 33.2 km Northwest bearing 315° from Fukura, Hyōgo, Japan 71.0 km West bearing 249° from Kōbe-shi, Hyōgo, Japan 98.9 km West bearing 255° from Ōsaka-shi, Ōsaka, Japan
Last position:	2025-07-31 14:30:48 UTC (4d 16h40m ago) 2025-07-31 23:30:48 JST local time at Tonoshō, Japan [?]
Course:	240° – heading 230°
Speed:	16 km/h
Dimensions:	length 30 m width 9 m draught 0.0 m
Last path:	JG4113>ais via JG3HLX
Positions stored:	1218

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.