Callsign:	ZIWH4
MMSI number:	235006642
Navigational status:	Under way (engine) (0)
Vessel class:	Military operations (35)
Destination:	PORTLAND (ETA Mar04 12:00)
Location:	51°07.02' N 1°18.64' E - locator JO01PC78GB - show map - static map 1.2 miles South bearing 158° from Dover, Kent, England, United Kingdom [?] 6.0 miles Southeast bearing 144° from Shepherdswell, Kent, England, United Kingdom 66.4 miles Southeast bearing 114° from City of London, Greater London, England, United Kingdom 67.6 miles Southeast bearing 113° from London, Greater London, England, United Kingdom
Last position:	2017-06-23 09:42:20 EDT (1d 21m ago) 2017-06-23 14:42:20 BST local time at Dover, United Kingdom [?]
Course:	249.4° – heading 511°
Speed:	0 MPH
Dimensions:	length 12 m width 4 m draught 0.7 m
Last path:	ZIWH4>ais via G8WLY
Positions stored:	9054

callsign		distance	last heard - EDT		callsign		distance	last heard - EDT
SMIT STOUR		9.9 yards 197°	2017-06-24 09:45:40		GEORGE HAMMOND		23.1 yards 314°	2017-06-21 06:11:19
DAVID CHURCH		25.3 yards 109°	2017-06-23 11:32:20		DIANA		42.1 yards 125°	2017-06-13 08:53:40
DOVER WORKER		72.2 yards 355°	2017-05-27 20:45:54		MARINER 3		72.9 yards 9°	2017-06-23 03:30:20
PATRIOT		77.6 yards 306°	2017-06-23 17:30:56		SUMMER LADY		81.9 yards 312°	2017-06-23 17:03:40
DHB DOUGHTY		82.0 yards 98°	2017-06-24 09:48:40		DHB DAUNTLESS		82.0 yards 106°	2017-06-24 09:48:40
GRIS-NEZ		95.0 yards 339°	2017-05-25 13:12:32		GIPSY		102.4 yards 336°	2017-06-02 09:35:45
DOVER EXPLORER		112.6 yards 44°	2017-05-28 12:42:14		AQUARIUS		135.0 yards 353°	2017-06-21 01:10:06
SEREN		139.1 yards 16°	2017-06-21 12:00:43		SOUTHERN CROSS		146.2 yards 21°	2017-05-28 17:21:35
244110196 NL		146.6 yards 14°	2017-05-27 01:09:42		SPEEDBIRD		155.2 yards 355°	2017-06-19 02:07:29
TRIDENT		155.7 yards 34°	2017-06-21 10:20:15		JOIE DE VIVRE		161.2 yards 328°	2017-06-19 15:35:49

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.