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Thanks Malcolm, Being as Synscan calls the error "Polar Error" that was what I thought it was in the first place. I think that the reason I started to
wonder, was that I got significantly different max tracking times after
2 star alignments; maybe 40 secs after one alignment, and 75 after another, even though the final error readouts were down to a few
seconds each time.
I'll do a really accurate 2 star alignment, and then do a DARV routine.
In theory the DARV should show really good P.A. [that assumes that the
Synscan readout is accurate]. It never occurred to me before that you
could use either routine to check the accuracy of the other.
raymo
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