Long Baseline Array

The Long Baseline Array (LBA) is a VLBI interferometer of cooperating radio telescopes across Australia. Participation and availability of individual sites has varied over time, one early observation incorporating the following:

• Parkes Observatory (64 m)
• Mopra Telescope (22 m)
• HOBART (26 m)
• CEDUNA (30 m)
• Australia Telescope Compact Array (ATCA) ( 6 × 22 m)

Within Australia, a 2000+ mile baseline is feasible. Telescopes outside Australia have been used in conjunction, producing baselines of 6000 miles.

The LBA and the ATCA were the two components of a 1980s VLBI project called the Australia Telescope (AT).