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Hi Steve,
Welcome to IIS
While drift aligning, you need to ignore drift in RA for both the meridian star and the east star. You just need to observe drift north and south.
Any east west drift in RA would be due to tracking rate errors and will need to be adjusted separately.
It's best you align your camera such that moving the ota in north south moves the star on screen north south as well. Then watch for N S drift.
Adjust azimuth for the meridian star and elevation for the east star, in both cases you're looking for drift in north south only. Ignore east west drift.
Best to align the drift along a reticle or grid line.
Do a search on drift aligning in this forum and you'll get plenty of pointers.
Cheers
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