Callsign:	JD4539
MMSI number:	431012999
IMO number:	858307
Navigational status:	Under way (engine) (0)
Vessel class:	Tanker (80)
Destination:	>JP NAO W1
Location:	37°13.80' N 138°12.36' E - locator PM97CF45RF - show map 5.9 miles North bearing 344° from Jōetsu, Niigata, Japan [?] 14.9 miles North bearing 351° from Arai, Niigata, Japan 40.0 miles North bearing 2° from Nagano-shi, Nagano, Japan 64.5 miles Southwest bearing 224° from Niigata-shi, Niigata, Japan
Last position:	2025-02-02 23:31:52 EST (3d 8h2m ago) 2025-02-03 13:31:52 JST local time at Jōetsu, Japan [?]
Course:	85° – heading 85°
Speed:	12 MPH
Dimensions:	length 65 m width 10 m draught 4.5 m
Last path:	JD4539>ais via JH0WSL
Positions stored:	34003

callsign		distance	last heard - EST		callsign		distance	last heard - EST
GUOMAO1		0.7 miles 54°	2025-01-31 17:19:16		532805088		2.1 miles 140°	2025-02-02 10:14:01
120124859		2.1 miles 141°	2025-02-01 19:09:00		792359321		2.2 miles 142°	2025-02-02 01:15:28
SANSHAMARU NO81		2.6 miles 92°	2025-02-02 08:51:05		LIAN YUN 9		3.1 miles 87°	2025-02-02 18:16:23
ZHI YING CHANG SHUN		3.3 miles 88°	2025-01-26 19:54:06		DEMI		3.7 miles 141°	2025-02-02 16:57:41
EIZAN MARU NO.82		3.8 miles 129°	2025-02-03 21:18:44		RIKIMARU		4.2 miles 269°	2025-02-02 05:39:07
ISINAGI MARU		4.2 miles 277°	2025-02-01 02:37:36		KENSHINMARU		4.3 miles 280°	2025-01-18 05:55:01
EBISUMARU		4.6 miles 283°	2025-01-22 07:04:01		ASAMAMARU		4.7 miles 258°	2025-01-17 18:47:39
NO2YASAKAMARU		4.8 miles 273°	2025-02-02 07:23:12		431024398		4.8 miles 311°	2025-01-26 22:00:34
KOHIKOMARU		5.2 miles 240°	2025-02-02 17:42:42		JH0ZMR		5.7 miles 107°	2025-02-06 07:21:15
JH0ZMR-10		5.7 miles 107°	2025-02-06 07:20:14		7M3QXW-B		6.2 miles 129°	2025-01-27 23:18:41

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.