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Some PEC data
Tonight I performed a test to see how well the RA clutch works
on either side of the meridian.
Scope was balanced, clutch engaged and a logging set done
using K3's Drift Explorer.
I used my modded SPC900 at Newt focus on the 12"
First set was done in the western sky 'going downhill'
Second was done east 'going uphill'.
A slight tracking error rate was added also.
PE shape repeats with the same sine wave structure regardless
of which side of the meridian I am on.
So I take that to mean, the clutch is reasonably reliable when balanced.
I think I'm correct on this....
I then put my DSI II mono back in and did a set on NGC 7213, a Seyfert
galaxy in Grus.
Note the diffraction spike from Alpha Grus (out of field, top right)
PEC was on and all tracking error nulled out for the set.
Steve
Steve
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