coadd

Section: User Manuals (1)
Updated: 22 JUL 2019
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NAME

coadd - Tool for combining CRUSH maps and more.  

SYNOPSIS

coadd [options] <filename>  

DESCRIPTION

coadd is a tool for combining FITS images produced by crush(1) (and also by BoA). In general, it should always be preferred to reduce all data together using crush(1) in a coherent fashion, rather than combining images afterwards. However, some data sets may be too large to fit into the available RAM in a single reduction run, making external coadding necessary at times. In such cases, the recommended approach is to reduce manageable chunks of data with crush(1) using the -split option (indicating a split dataset), and combine the images with coadd. The resulting composite image may be further processed with imagetool(1) to apply the desired smoothing, filtering, clipping etc.

 

OPTIONS

-help
Provides a basic help screen, similar to this one.
-out=
Specify the full output file name. The default value is <source-name>.coadded.fits.
-name=
Specify the output file name relative to input image path.
-projection=
Specify the spherical projection to use.
-jackknife
Randomly jackknife maps.
-scaling
Fit scaling for each component.
-offsets
Fit offset for each component.
-weighting
Derive weighting for the components.
-noise=
Estimate noise from data or image. The default is image.
 

FILES

~/.crush2/startup/coadd/
Location of user-specific java(1) runtime configurations.
 

BUGS

If you find them, please report them to the author (see below).  

AUTHOR

Attila Kovács <attila[AT]sigmyne.com>  

SEE ALSO

difftool(1), crush(1), imagetool(1), show(1)

     


This document was created with the help of man2html, using the manual pages.
Time: 23:56:58 GMT, January 03, 2020