IRAC: Software: Make BCD-matched photometric correction images

Aperture photometry on IRAC mosaics requires corrections to be applied based on the positions of the sources in the component BCDs. This software uses the available IRAC correction and pixel area maps to make a set of correction images which can then be mosaicked together in MOPEX. Users can then use this mosaic to look up photometric correction factors for an object at any given position in their BCD mosaic.

• NAME: copy_photcorr_posns
• PURPOSE: Make a set of BCD correction photometric correction images with the correct header information in for mosaicking with MOPEX
• CALLING SEQUENCE: copy_photcorr_posns,bcdlist,photcorrimg,areaimg,OUTLIST = outlist
• INPUTS:
  • BCDLIST - list of BCDs in a single channel of the AOR, one per line (excluding first HDR frame(s))
  • PHOTCORRIMG - photometric correction image for that channel, downloaded from Array-Location-Dependent Photometric Corrections page
  • AREAIMG - pixel area correction image for that channel, downloaded from Pixel Solid Angles page
• OUTPUT: A set of photometric correction images equal in number to the BCDs, with matching header information, and, if specified, a list for input to MOPEX.
• OPTIONAL INPUT KEYWORD:
  • OUTLIST - if specified, name of an output list of correction images for input to MOPEX
• REQUIREMENTS: IDL v6.3 and higher

This software is not considered part of the pipeline and no installation support from the SSC should be expected. We are however very interested in your feedback in order to improve or replace the algorithm and are glad to work with you in test cases and analysis. Please send your comments to help@spitzer.caltech.edu.

Download copy_photcorr_posns.pro.