MOPEX User's Guide - IRSA

MOPEX User’s Guide
Reinterpolation uses the same interpolation scheme and other processing parameters as used
by the original interpolation. All this information is recorded in the headers of the
interpolated images. The newly interpolated images become the input to later modules.
5.6.18 Mosaic Modules: Fix Coverage
Command Line Equivalent: run_fix_coverage
Default Output Directory: /Interp-mosaic
De pe nds On: Mosaic Interpolate (or Mosaic Reinterpolate)
PURPOSE
After all outlier pixels have been identified in the previous modules, there is the option to
suppress usage of pixels that have very small coverage (number of repeated observations at
the same point of sky). Pixels whose usage is suppressed have their coverage set to 0 in new
coverage maps.
INPUT
Min Single Coverage: (float) The minimum coverage for an individual pixel. The default
value is 0.95.
Min Block Coverage: (float) The minimum average coverage in the block of 9 pixels
centered on a given pixel for it to be retained. The default value is 0.83
COMMAND LINE INPUT
Within mosaic.pl, no parameters are set for this module, so default values are used for Min
Single Coverage and Min Block Coverage
OUTPUT
Fix Coverage Images (fixed_covg_*.fits): The stack of corrected coverage maps.
DISCUSSION
Mosaicking (mosaic.pl) 83
Mosaic Modules