Callsign:	VK4123
MMSI number:	503020670
IMO number:	417725
Navigational status:	Under way (engine) (0)
Vessel class:	Sailing (36)
Location:	37°54.43' S 144°58.88' E - locator QF22LC72SG - show map 4.4 km South bearing 180° from Saint Kilda, Port Phillip, Victoria, Australia [?] 5.3 km South bearing 171° from St Kilda West, Port Phillip, Victoria, Australia 10.5 km South bearing 171° from Melbourne, Melbourne, Victoria, Australia 60.5 km Northeast bearing 64° from Geelong, Greater Geelong, Victoria, Australia
Last position:	2025-11-22 05:03:43 UTC (1d 12h43m ago) 2025-11-22 16:03:43 AEDT local time at Saint Kilda, Australia [?]
Course:	356° – heading 511°
Speed:	0 km/h
Dimensions:	length 14 m width 4 m draught 0.0 m
Last path:	VK4123>ais via vk3ymml
Positions stored:	18004

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.