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UIST Spectroscopy


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Spectroscopy: Data Reduction Recipes

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The following tables describe the UIST spectroscopy ORACDR recipes; click on the recipe name for more information. The Requirements listed below are frames that should be obtained prior to use of the recipe, although data can always be re-reduced when the appropriate frames have been taken. Flats and standard stars must be obtained through the same grism and slit.


Calibration Recipes
 
Recipe Name Requirements Comments
REDUCE_BIAS None Reduce a Bias observation
REDUCE_ARC None Stores as an arc
REDUCE_FLAT Dark Stores as a flat


Point Source Recipes
 
Recipe Name Requirements Comments
POINT_SOURCE Flat, Arc, Standard star Default point source reduction
POINT_SOURCE_NOSTD Flat, Arc For sources without a standard
POINT_SOURCE_NOFLAT Arc, Standard star For sources without a flat
POINT_SOURCE_NOARC Flat, Standard star For sources without an arc
POINT_SOURCE_NOFLAT_NOSTD None Sources with no flat or standard
FAINT_POINT_SOURCE Flat, Arc, Standard For faint targets (weak continuum)

There are versions of these recipes which reduce a standard star sequence; these data are then filed for use with the target observations (see e.g. STANDARD_STAR)


Extended Source Recipes
 
Recipe Name Requirements Comments
EXTENDED_SOURCE Flat field, Arc, standard star Default extended source reduction
EXTENDED_SOURCE_NOSTD Flat field, Arc For sources without a standard
EXTENDED_SOURCE_NOFLAT Standard star, Arc For sources without a flat
EXTENDED_SOURCE_NOARC Standard star, Flat For sources without an arc
EXTENDED_SOURCE_NOFLAT_NOSTD None Sources with no flat or standard


Single Frame Recipes
 
Recipe Name Requirements Comments
REDUCE_SINGLE_FRAME Flat field Reduces a single frame
REDUCE_SINGLE_FRAME_NOFLAT None Reduces a single frame without a flat


Polarimetry Recipes
 
Recipe Name Requirements Comments
POINT_SOURCE_POL Flat field, Arc Reduces Spec-Pol quads


Miscellaneous Recipes
 
Recipe Name Requirements Comments
QUICK_LOOK None Display raw data file (and convert from HDS to NDF)
NIGHT_LOG None Generate an ascii log
EMISSIVITY flat Calculates telescope emissivity



Contact: Chris Davis. Updated: Mon Oct 29 13:43:21 HST 2007

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