Callsign:	JD4139
MMSI number:	431008976
IMO number:	810006
Navigational status:	Under way (engine) (0)
Vessel class:	Tanker (80)
Destination:	>JP NGO OFF (ETA Aug19 02:30)
Location:	33°26.94' N 135°18.64' E - locator PM73PK77GS - show map 32.0 km South bearing 189° from Tanabe, Wakayama, Japan [?] 50.5 km South bearing 163° from Gobō, Wakayama, Japan 82.2 km South bearing 173° from Shimminatochō, Wakayama, Japan 87.4 km South bearing 171° from Wakayama-shi, Wakayama, Japan
Last position:	2025-08-21 11:50:37 UTC (6d 7h29m ago) 2025-08-21 20:50:37 JST local time at Tanabe, Japan [?]
Course:	276° – heading 279°
Speed:	21 km/h
Dimensions:	length 69 m width 11 m draught 5.1 m
Last path:	JD4139>ais via JG3HLX
Positions stored:	14131

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.