Callsign:	UBJF4
MMSI number:	273339810
IMO number:	870786
Navigational status:	Moored (5)
Vessel class:	Dredging/underwater operations (33)
Destination:	LEHTMA (ETA Dec23 12:00)
Location:	59°04.01' N 22°42.15' E - locator KO19IB46GA - show map - static map 5.0 miles North bearing 341° from Kärdla, Hiiumaa, Estonia [?] 31.0 miles West bearing 286° from Haapsalu, Läänemaa, Estonia 76.8 miles West bearing 251° from Tallinn, Harjumaa, Estonia 80.6 miles Northwest bearing 307° from Pärnu, Pärnumaa, Estonia
Last position:	2012-02-11 04:41:44 UTC (3d 3h59m ago) 2012-02-11 06:41:44 EET local time at Kärdla, Estonia [?]
Course:	148°
Dimensions:	length 54 m width 10 m draught 2.8 m
Last path:	UBJF4>ais via es8tjm
Positions stored:	32

callsign		distance	last heard - UTC		callsign		distance	last heard - UTC
AHTO-21		63.9 yards 188°	2012-02-11 16:01:47		PRAAM 1		92.7 yards 190°	2012-02-11 21:00:15
LAUK		167.1 yards 218°	2012-01-17 03:19:08		Met stn		402.2 yards 297°	2012-02-11 07:02:57
Met stn		402.2 yards 297°	2012-02-11 15:12:42		Met stn		402.2 yards 297°	2012-02-14 08:32:18
002766060 EE		4.1 miles 289°	2012-02-11 20:26:39		AEGNA		9.7 miles 131°	2012-02-11 05:40:49
BUOY-634		12.2 miles 25°	2012-01-30 15:52:02		EMSSKY		14.0 miles 289°	2012-02-10 23:44:51
VOLGO-BALT244		16.5 miles 275°	2012-02-02 00:26:32		BUOY-650		17.9 miles 303°	2012-02-07 21:45:54
Met stn		18.5 miles 138°	2012-02-11 09:12:09		Met stn		18.5 miles 138°	2012-02-11 17:22:44
Met stn		18.5 miles 138°	2012-02-14 08:22:17

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.