Callsign:	JD4533
MMSI number:	431012945
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	JPCHB1 (ETA ***00 24:60)
Location:	35°30.01' N 139°59.94' E - locator PM95XM90VB - show map - static map 4.9 miles West bearing 257° from Ichihara, Chiba, Japan [?] 9.7 miles Northeast bearing 26° from Kisarazu, Chiba, Japan 20.4 miles East bearing 80° from Yokohama-shi, Kanagawa, Japan 21.6 miles Southeast bearing 127° from Tokyo, Tōkyō, Japan
Last position:	2021-02-27 18:18:00 EST (1d 17h37m ago) 2021-02-28 08:18:00 JST local time at Ichihara, Japan [?]
Course:	209° – heading 208°
Speed:	13 MPH
Dimensions:	length 40 m width 12 m draught 3.0 m
Last path:	JD4533>ais via GM7HHB
Positions stored:	482

callsign		distance	last heard - EST		callsign		distance	last heard - EST
SEIHOU MARU		0.4 miles 0°	2021-03-01 10:57:15		CELSIUS RIGA		1.1 miles 165°	2021-02-28 19:26:14
TOEIMARU		1.2 miles 78°	2021-02-26 20:37:28		NISSHO MARU NO.18		1.2 miles 159°	2021-02-27 20:37:08
TONE MARU		1.3 miles 157°	2021-02-24 22:22:18		OHTORI		1.4 miles 152°	2021-02-27 19:02:02
CORAL ALICIA		2.1 miles 20°	2021-02-28 20:49:42		TOKIWA		2.2 miles 4°	2021-03-01 09:23:04
KASHIMA MARU		2.3 miles 227°	2021-03-01 03:17:03		AWA MARU		2.4 miles 236°	2021-02-27 01:45:40
MIZUHO		2.5 miles 221°	2021-03-01 04:20:05		ASAMA		2.5 miles 233°	2021-02-28 05:02:13
JJ1HHD-A		2.5 miles 116°	2021-02-26 00:46:07		JL1OWF-9		2.5 miles 207°	2021-03-01 02:08:33
KATORIMARU		2.5 miles 222°	2021-02-22 20:01:06		KOKUSHO MARU		2.6 miles 30°	2021-02-18 16:30:27
JI1DLW		2.7 miles 107°	2021-03-01 05:40:33		ATAGO MARU		2.7 miles 245°	2021-02-24 19:34:18
SHICHIHO MARU		3.1 miles 344°	2021-02-28 10:42:36		TANIKAZE		3.2 miles 357°	2021-03-01 10:25:30

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.