Callsign:	ROCKN
MMSI number:	503172210
Vessel class:	Sailing (36)
Location:	33°51.38' S 151°09.85' E - locator QF56ND94QL - show map 2.5 km Southwest bearing 225° from Greenwich, Lane Cove, New South Wales, Australia [?] 4.2 km West bearing 288° from Sydney, City of Sydney, New South Wales, Australia 4.8 km Southwest bearing 221° from St Leonards, North Sydney, New South Wales, Australia 117.8 km Southwest bearing 209° from Newcastle, Newcastle, New South Wales, Australia
Last position:	2025-02-21 05:27:39 UTC (19d 22h27m ago) 2025-02-21 16:27:39 AEDT local time at Greenwich, Australia [?]
Course:	360° – heading 511°
Speed:	0 km/h
Last path:	ROCKN>ais via NorthRyde
Positions stored:	8

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.