GMOS Data Reduction
GMOS Data Reduction
GMOS Data Reduction
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<strong>GMOS</strong> Images: <strong>Data</strong> <strong>Reduction</strong><strong>Reduction</strong> Steps" Combine bias (trim, overscan)" Twilight flats : over-scan, bias subtraction, trim and combinethe frames" Science images: bias and over-scan subtraction, trim and flatfieldthe frames" Blank fields to construct a combined image for fringingcorrection (i-band only)" Mosaic the images and combine the frames by filter
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