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FLAT FIELD CALIBRATIONS

There is a White Spot on the side of the WIYN dome for taking flat fields. Dome flats should be taken for each configuration of the fibers either just prior to the target observations, or soon afterwards. Both the fiber-to-fiber throughput differences and CCD pixel-to-pixel sensitivity variations can be corrected for using the white spot flat fields.





Sam Barden
Tue Aug 29 16:45:05 MST 1995