Callsign:	JD4738
MMSI number:	431014517
IMO number:	873412
Navigational status:	Under way (engine) (0)
Vessel class:	(0)
Destination:	>JP KNZ OFF
Location:	37°40.69' N 137°43.44' E - locator PM87UQ62VS - show map 72.5 km North bearing 351° from Itoigawa, Niigata, Japan [?] 74.2 km Northwest bearing 323° from Jōetsu, Niigata, Japan 121.1 km North bearing 341° from Nagano-shi, Nagano, Japan 154.8 km Northeast bearing 39° from Kanazawa-shi, Ishikawa, Japan
Last position:	2025-10-10 14:21:55 UTC (12d 22h42m ago) 2025-10-10 23:21:55 JST local time at Itoigawa, Japan [?]
Course:	259° – heading 257°
Speed:	20 km/h
Dimensions:	length 65 m width 14 m draught 0.0 m
Last path:	JD4738>ais via JH0WSL
Positions stored:	4987

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.