Callsign:	MBSM4
MMSI number:	232006997
Vessel class:	Sailing (36)
Location:	51°37.38' N 0°48.04' E - locator JO01JO69CM - show map 10.4 km Northeast bearing 28° from Southchurch Village, Borough of Southend-on-Sea, England, United Kingdom [?] 11.2 km Northeast bearing 32° from Southend-on-Sea, Borough of Southend-on-Sea, England, United Kingdom 62.9 km East bearing 78° from City of London, Greater London, England, United Kingdom 65.2 km East bearing 78° from London, Greater London, England, United Kingdom
Last position:	2025-06-29 18:30:51 UTC (28d 14h12m ago) 2025-06-29 19:30:51 BST local time at Southchurch Village, United Kingdom [?]
Course:	266° – heading 265°
Speed:	8 km/h
Dimensions:	length 10 m width 3 m
Last path:	MBSM4>ais via G7OCD
Positions stored:	171

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.