Callsign:	WDA2184
MMSI number:	366971980
IMO number:	1099591
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Destination:	HARBOR TUG (ETA 20120609150000)
Location:	37°47.56' N 122°17.96' W - locator CM87UT40CF - show map - static map 1.8 miles Southwest bearing 243° from Oakland, Alameda County, California, United States [?] 4.3 miles Southwest bearing 239° from Piedmont, Alameda County, California, United States 6.7 miles East bearing 79° from San Francisco, San Francisco County, California, United States 38.3 miles Northwest bearing 325° from San Jose, Santa Clara County, California, United States
Last position:	2012-01-11 02:46:55 UTC (34d 6h20m ago) 2012-01-10 18:46:55 PST local time at Oakland, United States [?]
Course:	268° – heading 267°
Speed:	9 MPH
Dimensions:	length 30 m width 8 m draught 4.0 m
Last path:	WDA2184>ais via MarineTraffic
Positions stored:	12700

callsign		distance	last heard - UTC		callsign		distance	last heard - UTC
Z_THREE		70.1 yards 137°	2012-01-15 21:57:33		APL CHINA		106.5 yards 321°	2012-01-21 10:58:52
OOCL CHICAGO		219.8 yards 254°	2012-01-29 11:56:42		DELTA CAPTAIN		388.7 yards 261°	2012-01-25 13:51:53
LORETO		0.3 miles 80°	2012-01-29 15:14:55		DW8533		0.5 miles 356°	2012-02-14 02:33:51
XIN LOS ANGELES		0.6 miles 84°	2012-01-27 01:12:47		ZIM SHANGHAI		0.6 miles 283°	2012-02-05 23:02:01
NYK ARGUS		0.7 miles 285°	2012-02-07 17:52:46		MSC RITA		0.9 miles 285°	2012-01-18 14:29:34
DW9579		1.0 miles 170°	2012-02-14 09:02:19		YM GREEN		1.1 miles 286°	2012-01-29 08:23:51
YM MARCH		1.2 miles 281°	2012-01-23 02:26:55		ALGOL		1.3 miles 195°	2012-01-29 09:15:37
ADMIRAL CALLAGHAN		1.3 miles 193°	2012-01-20 16:50:37		HANJIN BALTIMORE		1.4 miles 286°	2012-01-29 02:43:35
CAPE HENRY		1.4 miles 186°	2012-02-06 21:35:21		WB6MLC-9		1.8 miles 156°	2012-01-23 22:35:04
MOL PRESTIGE		1.9 miles 310°	2012-02-12 08:42:21		HYUNDAI TOKYO		2.0 miles 309°	2012-02-07 11:52:15

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.