The following tables describe the UIST imaging 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. Darks must have the same integration time as the target frames, and flats must be obtained through the same filters.

Calibration Recipes

Recipe Name	Requirements	Comments
MEASURE_READNOISE	None	Calculates readnoise
DARK_AND_BPM	None	Calculates dark current and bad pixel mask
REDUCE_DARK	None	Stores as dark
REDUCE_FLAT	None	Stores as a flat
SKY_FLAT	Dark	Stores as flat, no object masking
SKY_FLAT_MASKED	Dark	Masks any objects
SKY_FLAT_POL_ANGLE	Dark	Stores a polarimetry flat at each WP angle

Point Source Recipes – Non-Thermal

Recipe Name	Requirements	Comments
BRIGHT_POINT_SOURCE	Dark; separate flat field	Background too low for self-flat
BRIGHT_POINT_SOURCE_APHOT	Dark; separate flat field	Low background, photometry on center
JITTER_SELF_FLAT	Dark	Creates flat from a sequence of jittered target frames
JITTER_SELF_FLAT_APHOT	Dark	As above with photometry on center
JITTER_SELF_FLAT_NO_MASK	Dark	As above, though quicker: use if field uncrowded
JITTER_SELF_FLAT_BASIC	Dark	Quicker still with only registration to nearest pixel
JITTER_SELF_FLAT_NCOLOUR	Dark	A single group using the filter iterator, produces a mosaic for each filter
SKY_AND_JITTER	Dark; separate flat field	Sky then on-source jitter
SKY_AND_JITTER_APHOT	Dark; separate flat field	Sky then on-source jitter with photometry

Point Source Recipes – Thermal

Recipe Name	Requirements	Comments
NOD_SELF_FLAT_NO_MASK	Dark	Pairs subtracted for fast sky removal, self flat
NOD_SELF_FLAT_NO_MASK_APHOT	Dark	As above with photometry on positive and negative images of target

Extended Source Recipes

Recipe Name	Requirement	Comments
QUADRANT_JITTER	Dark	Jitter source between 4 quadrants of the array; good for slightly extended target where surroundings are clean for flat
QUADRANT_JITTER_NO_MASK	Dark	As above, though quicker: Use if field uncrowded.
QUADRANT_JITTER_BASIC	Dark	As above, though quicker still with one registration to nearest pixel
EXTENDED_3x3	Dark	Alternates sky/object, maps area 3×3 frames on object
EXTENDED_3x3_BASIC	Dark	Same as above, though without masking and resampling for speed
EXTENDED_5x5	Dark	Alternates sky/object, maps area 5×5 frames on object
EXTENDED_5x5_BASIC	Dark	Same as above, though without masking and resampling for speed
NOD_SKY_FLAT_THERMAL	Dark	Alternate object and sky frames are subtracted and divided by a flat formed from the sky
CHOP_SKY_JITTER	Dark	Alternating between object and sky, subtracts a modal sky value and is not suitable for thermal imaging
CHOP_SKY_JITTER_BASIC	Dark	Alternating between object and sky, though without masking and resampling for speed

Moving (Non-Sidereal) Source Recipes

Recipe Name	Requirements	Comments
MOVING_JITTER_SELF_FLAT	Dark	Registration uses ephemeris data
MOVING_JITTER_SELF_FLAT_BASIC	Dark	For speed on moving target (without masking and resampling)
JITTER_SELF_FLAT_TELE	Dark	Telescope tracks moving object; uses telescope offsets to register

Polarimetry Recipes

Recipe Name	Requirements	Comments
SKY_FLAT_POL_ANGLE	Dark	Offset on blank sky; creates flat for each WP angle separately.
POL_JITTER	Dark; separate “POL” flat field	Jitter E-W on source at each of 4 WP posts.
POL_ANGLE_JITTER	Dark; separate “POL” flat field	Observes 4 WP posns. then jitters EW
POL_EXTENDED	Dark; separate “POL” flat field	Object/Sky pairs at each of 4 WP posns.

Miscellaneous Recipes

Recipes Name	Requirements	Comments
QUICK_LOOK	None	Display raw data file (and covert from HDS to NDF)
NIGHT_LOG	None	Generate an ascii log