Callsign:	JD4043
MMSI number:	431008097
IMO number:	54119
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Location:	36°29.81' N 140°37.56' E - locator QM06HL59CF - show map 6.3 km Northeast bearing 58° from Funaishikawa, Ibaraki, Japan [?] 11.7 km South bearing 191° from Hitachi, Ibaraki, Japan 122.8 km Northeast bearing 43° from Tokyo, Tōkyō, Japan 146.3 km Northeast bearing 37° from Yokohama-shi, Kanagawa, Japan
Last position:	2026-01-18 15:45:09 UTC (1d 1h57m ago) 2026-01-19 00:45:09 JST local time at Funaishikawa, Japan [?]
Course:	78° – heading 66°
Speed:	0 km/h
Dimensions:	length 26 m width 9 m draught 0.0 m
Last path:	JD4043>ais via IC8HFW
Positions stored:	4875

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.