Callsign:	JJ4021
MMSI number:	431301475
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	JP SMZ (ETA Apr18 07:00)
Location:	35°01.79' N 138°31.54' E - locator PM95GA37BD - show map - static map 14.2 km Northeast bearing 66° from Shizuoka-shi, Shizuoka, Japan [?] 20.9 km Southwest bearing 223° from Fuji, Shizuoka, Japan 111.5 km Southwest bearing 246° from Yokohama-shi, Kanagawa, Japan 128.6 km Southwest bearing 236° from Tokyo, Tōkyō, Japan
Last position:	2021-07-03 14:25:38 UTC (81d 18h5m ago) 2021-07-03 23:25:38 JST local time at Shizuoka-shi, Japan [?]
Course:	138° – heading 143°
Speed:	17 km/h
Dimensions:	length 31 m width 10 m draught 0.0 m
Last path:	JJ4021>ais via JR1CAD-AIS
Positions stored:	2368

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.