My IDL Library

Astrometry:

ASTROHISTO: Create histograms of deviation in RA and declination
ASTROMPLOT: Create datafile containing deviation in RA and declination in arcseconds for plotting purposes
RAROUT2: Calculate the RA and declination (in degrees) given x/y pixel coordinates
CONV: Convert position from degrees to RA (hh:mm:ss.ss) and declination (dd:mm:ss.s)
POSOFFSET: Apply offset in RA and dec for science and Landolt fields

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Fits Formatting:

ADD2HEADER: Add a filter value to the header of a fits file
CENTDERIV: Write the derived central RA and declination as well as platescale and rotation to the header of a fits file
COORDERASE: Erase central coordinates in fits headers
FILTCHANGE: Rename the filter value to FILTER from COMMENT in the header of a fits file

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Image Processing:

AUTOTEMP: Create a template for any image by identifying stars whose profiles are Gaussian
FLATCAL: Flatten all images for the specified date
FLATS: Generate a flat in R and V band
TEMPLATE2: Draw a template and calculate accurate x,y coordinates

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Miscellaneous:

CHECK: Check a coordinate file to see if the coordinates for a science image have already been recorded.
COMPILE: Compile all IDL routines in local library and Buie's library
FILT_LIST_GEN: Create a list of images that will be used to generate a deepsky flat
HEADFILL: Create a header template for routines
LANDCAT: Retrieve Landolt star names, positions, and standard magnitudes
LANDLISTS: Create log that contains the filenames of all Landolt images for a given observation night
TWI_FILT_LIST_GEN: Create a list of image that will be used to generate a twilight flat
VERSIONCHECK: Find the most updated version of a file

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Photometry:

BADINDCHECK: Identify Landolt stars with bad indices and bad flux measurements
BADWEATH: Identify bad science images due to bad weather
DATRED4LANDS: Calculate standard R and V magnitudes and corresponding errors for Landolt fields.
DATRED: Calculate standard R and V magnitudes and corresponding error for science fields.
ERRPLOT: Plot error vs derived standard magnitude
FLUXPLOT: Plot flux (counts/s) vs airmass in R/V bands
INST2STD4LANDS2:Transform instrumental magnitude to standard magnitude for Landolt fields
LANDLOG: Calculate normalized flux and position for Landolt stars
MARKCOEF2: Solve for the extinction/transformation coefficients
PHOTHISTO: Make a histogram of R mag and V mag deviation
PHOTPLOT: Create datafiles that contain deviation in R and V standard magnitude
RACINST2STD2: Transforms instrumental magnitude into standard magnitude for science fields
RACTRANSF: Determine transformation coefficients from instrumental to standard magnitude
RUNRED: Implement the data reduction process on all science images in an observation run

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Utility:

ARRDIFF: Return the elements of two arrays whose components are withing the specified tolerance from eachother
CIRCLE: Return the coordinates of a circle with the specified parameters
PAUSE: Pause for the specified duration