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These operations are all performed when the "Generate Structure" button is selected. You may select the "verbose" or "Loud" (= very verbose) buttons to produce more output, but these are mostly only useful for debugging purposes.
Once you have created the structure, it is advisable to inspect and (if appropriate) edit it by hand to ensure there are no errors. To do this, click "Edit Structure."
Object Extraction
a
Telluric Correction / Flux Calibration
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