Spitzer Documentation & Tools
MOPEX User's Guide

5.6.23    Mosaic Modules: Make Array Correction Files

Command-Line Equivalent: make_array_corr_files

Default Output Directory: <output_dir>/Array_Corr_Data

Depends On: Mosaic Settings

 

Important Notes: For use with IRAC data only. Only required if you are analyzing sources with a spectral energy distribution that is "blue", that is, falling with wavelength through the IRAC passbands.

 

PURPOSE

Creates the Array Location-Dependent Correction frames for each of the BCD files used in making the mosaic.

 

INPUT

You must specify an Array Location-Dependent Correction file (Array Correction Frame) and a Pixel Area distortion file (PixArea Frame ) in the Mosaic Settings module.

 

COMMAND LINE INPUT

See next section.

 

OUTPUT

Array Correction frames (corr_*.fits): The Array Correction frames corresponding to the BCDs. They are written to the Array_Corr_Data output directory.

 

DISCUSSION

For use with IRAC data only.  This module creates the Array Location-Dependent Correction frames for each of the input BCDs to allow users to correct their photometry when observing blue sources on the final mosaic. In this case, �blue� means anything with a spectral energy distribution that is falling through the IRAC passbands and, in practice, includes most galactic and many extragalactic sources. For more information on the array location-dependent correction, and how to apply it to your photometry, see the IRAC Instrument Handbook. This is not an issue with MIPS data.