Callsign:	JD4187
MMSI number:	431009393
Navigational status:	Under way (engine) (0)
Vessel class:	Cargo (70)
Location:	34°35.35' N 134°13.48' E - locator PM74CO61WJ - show map 12.3 km North bearing 18° from Tonoshō, Kagawa, Japan [?] 24.0 km Southwest bearing 222° from Akō, Hyōgo, Japan 88.3 km West bearing 263° from Kōbe-shi, Hyōgo, Japan 117.4 km West bearing 265° from Ōsaka-shi, Ōsaka, Japan
Last position:	2026-02-04 08:48:24 UTC (5d 18m ago) 2026-02-04 17:48:24 JST local time at Tonoshō, Japan [?]
Course:	243° – heading 243°
Speed:	19 km/h
Dimensions:	length 57 m width 9 m draught 0.0 m
Last path:	JD4187>ais via JG3HLX
Positions stored:	14956

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.