Is that the dish that's northwest of Sydney, oh, a couple hundred miles
or so? About 20 years ago I snapped a picture of a very impressive dish
from a helicopter I was riding between Sydney and Charleville (west of
Brisbane, in Qld.) Never knew what it was for, but sure looks like a
radiotelescope.

Roy Lewallen, W7EL

Bob Bob wrote:
I would suspect that once the signal is found, good old well defined
celestial/orbital mechanics takes over. Even good quality optical
telescopes have a drive that keeps the instrument pointed in the right
direction.

Of course the moon travels on its own orbit buts its path would also be
well known.


Cheers Bob VK2YQA
(Who has been into the Parkes Radiotelescope numerous times)