Callsign:	JD4171
MMSI number:	431009571
Navigational status:	Under way (engine) (0)
Vessel class:	Tanker (87)
Location:	34°41.26' N 134°23.07' E - locator PM74EQ65DA - show map 4.4 miles South bearing 192° from Akō, Hyōgo, Japan [?] 9.3 miles Southwest bearing 211° from Aioi-shi, Hyōgo, Japan 45.3 miles West bearing 270° from Kōbe-shi, Hyōgo, Japan 63.5 miles West bearing 270° from Ōsaka-shi, Ōsaka, Japan
Last position:	2025-01-12 21:02:01 EST (17d 19h25m ago) 2025-01-13 11:02:01 JST local time at Akō, Japan [?]
Course:	237° – heading 237°
Speed:	13 MPH
Dimensions:	length 51 m width 8 m draught 0.0 m
Last path:	JD4171>ais via JG3HLX
Positions stored:	9321

callsign		distance	last heard - EST		callsign		distance	last heard - EST
SEIRYU MARU		309.3 yards 12°	2025-01-30 16:26:59		HOUEIMARU NO.11		416.3 yards 132°	2025-01-23 20:53:58
SUZUKA MARU NO.10		0.4 miles 295°	2025-01-28 18:17:05		SUMIYOSHIMARUNO.37		0.4 miles 134°	2025-01-17 10:09:49
SUMIYOSHIMARUNO.35		0.6 miles 59°	2025-01-26 22:37:31		NO.33_SUMISEMARU		0.7 miles 12°	2025-01-30 16:26:59
KYOUSHIN MARU		0.8 miles 73°	2025-01-29 20:32:44		KUUKAI		0.8 miles 344°	2025-01-30 16:20:59
MEISHO		0.9 miles 84°	2025-01-15 13:25:21		SENSHO MARU		1.4 miles 195°	2025-01-23 02:45:04
TAKUYO MARU		1.6 miles 103°	2025-01-22 16:12:37		SHORYU MARU		2.5 miles 125°	2025-01-28 02:27:16
AIKOUMARU		2.6 miles 125°	2025-01-28 05:33:17		RYUJU MARU		3.0 miles 197°	2025-01-28 11:53:35
SANMANYOSHI		3.1 miles 190°	2025-01-26 01:54:46		NO.1 OHKURA MARU		3.2 miles 113°	2025-01-30 15:54:59
004310502 JP		3.2 miles 26°	2025-01-30 16:25:59		DAIKOKU MARU		3.2 miles 204°	2025-01-29 12:02:42
SUMISE MARU NO.31		3.2 miles 341°	2025-01-20 13:58:53		SEISHO MARU		3.3 miles 195°	2025-01-25 01:56:28

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.