Quote:
Originally Posted by gbeal
That's the part I couldn't understand. Slowly and surely off the graph perhaps, but not chasing/oscillating.
Gary
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Well I assume that if you have no star movement in 10min after drift alignment that would show as a very minimal drift in PHD over a significant period of time.
When you disable the guide output all you're left with is the worm noise. I have had instances in bad seeing when by disabling the PHD output my RA and DEC flat lined because the mount was tracking better than chasing the seeing while guiding.
If there are still problems in DEC and RA with the guide output disabled then it is a mechanical problem. Meshing, balance. Could be anything. A G11 well polar aligned should give you a very narrow graph in PHD with a small amplitude over 1 min at least at this image scale.