Callsign:	JD4005
MMSI number:	431007958
IMO number:	3
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	(ETA ***00 24:60)
Location:	35°30.31' N 139°44.76' E - locator PM95UM91MF - show map - static map 3.1 km Southeast bearing 123° from Kawasaki, Kanagawa, Japan [?] 11.3 km Northeast bearing 56° from Yokohama-shi, Kanagawa, Japan 21.1 km South bearing 167° from Tokyo, Tōkyō, Japan
Last position:	2021-09-21 06:45:42 UTC (2d 9h7m ago) 2021-09-21 15:45:42 JST local time at Kawasaki, Japan [?]
Course:	240° – heading 331°
Speed:	0 km/h
Dimensions:	length 38 m width 10 m draught 3.8 m
Last path:	JD4005>ais via GM7HHB
Positions stored:	33813

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.