Callsign:	JD4634
MMSI number:	431013822
IMO number:	866017
Navigational status:	Under way (engine) (0)
Vessel class:	Tanker (80)
Destination:	>JP SKD OFF (ETA Nov06 18:00)
Location:	37°42.08' N 137°52.52' E - locator PM87WQ58BH - show map 64.8 km Southwest bearing 229° from Ryōtsu, Niigata, Japan [?] 69.2 km Northwest bearing 333° from Jōetsu, Niigata, Japan 103.3 km West bearing 258° from Niigata-shi, Niigata, Japan 119.8 km North bearing 347° from Nagano-shi, Nagano, Japan
Last position:	2025-11-21 15:15:56 UTC (2d 15h30m ago) 2025-11-22 00:15:56 JST local time at Ryōtsu, Japan [?]
Course:	254° – heading 258°
Speed:	19 km/h
Dimensions:	length 72 m width 12 m draught 4.5 m
Last path:	JD4634>ais via JH0WSL
Positions stored:	39058

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.