Callsign:	503420000
MMSI number:	503420000
IMO number:	694593
Navigational status:	Under way (engine) (0)
Vessel class:	Tug (52)
Location:	37°50.07' S 144°53.83' E - locator QF22KD79PR - show map 4.0 km West bearing 278° from Port Melbourne, Port Phillip, Victoria, Australia [?] 6.2 km West bearing 249° from Melbourne, Melbourne, Victoria, Australia 7.2 km Northwest bearing 293° from St Kilda West, Port Phillip, Victoria, Australia 58.4 km Northeast bearing 54° from Geelong, Greater Geelong, Victoria, Australia
Last position:	2025-07-04 20:21:26 UTC (19d 13h20m ago) 2025-07-05 06:21:26 AEST local time at Port Melbourne, Australia [?]
Course:	186° – heading 511°
Speed:	15 km/h
Dimensions:	length 21 m width 7 m draught 0.0 m
Last path:	503420000>ais via vk3ymml
Positions stored:	5486

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.