Hi Mike,

It looks to me like that 2nd calibration failed in some way. The mount appears to have not moved at all during the first West step and it winds up thinking that the RA only moves at 1.7 arcsec/second. So, when it sends a correction to the RA that correction is way larger than really necessary. So it overshoots, then overcorrects in the other direction and you are off to the races.

Why the new calibration after the flip? Are you using ST4 for guiding?

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