Callsign:	MDMD4
MMSI number:	232016793
IMO number:	489467
Navigational status:	At anchor (1)
Vessel class:	Port tender (53)
Destination:	GB TTL (ETA Sep21 08:00)
Location:	53°32.32' N 0°05.76' E - locator JO03BM19MG - show map 8.0 km East bearing 83° from Humberston, North East Lincolnshire, England, United Kingdom [?] 9.3 km Northeast bearing 56° from Tetney, Lincolnshire, England, United Kingdom 104.8 km East bearing 80° from Sheffield, City and Borough of Sheffield, England, United Kingdom 112.0 km East bearing 104° from Leeds, City and Borough of Leeds, England, United Kingdom
Last position:	2025-09-25 16:38:15 UTC (2m39s ago) 2025-09-25 17:38:15 BST local time at Humberston, United Kingdom [?]
Course:	175.8° – heading 97°
Speed:	0 km/h
Dimensions:	length 60 m width 14 m draught 4.8 m
Last path:	MDMD4>ais via G0MNI-A
Positions stored:	411865

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.