NAME

       mCatMap - Point-source imaging program

SYNOPSIS

       mCatMap [-c column] [-m refmag] [-d level] [-w size] in.tbl out.fits hdr.template

DESCRIPTION

       mCatMap  is a point-source imaging program.  The user defines a general output FITS image, and its pixels
       are populated from a table of point sources.  The source fluxes (or just source counts)  from  the  table
       are added into the appropriate pixel to create an output image.

OPTIONS

       -c column
              Name  of  the  table column that contains flux levels.  If not specified, pixels will be populated
              with source counts rather than summed flux values.

       -m refmag
              Set a reference magnitude to use when calculating fluxes.

       -d level
              Turn on debugging to the specified level (1-3)

       -w size
              Set a spread size for point sources (default is to use no spread).  Allowed values are 3 or 5.

ARGUMENTS

       in.tbl Input table of source metadata.

       out.fits
              Path of output FITS file.

       hdr.template
              ASCII header template defining output FITS file.

RESULT

       [struct stat="OK", time=seconds]

MESSAGES

       OK     [struct stat="OK", time=seconds]

       ERROR  Can't open input table in.tbl

       ERROR  Can't find column 'ra'

       ERROR  Can't find column 'dec'

       ERROR  Can't find column 'column'

       ERROR  Output wcsinit() failed

       ERROR  Template file not found

EXAMPLES

       To create an image showing the 2MASS point source fluxes (2mass_pt.tbl) in a 2 square degree area defined
       by 2mass_pt.hdr:

       mCatMap -c flux 2mass_pt.tbl 2mass_pt.fits 2mass_pt.hdr
              [struct stat="OK", time=4]

       Output image:

BUGS

       The drizzle algorithm has been implemented but has not been tested in this release.

       If a header template contains carriage returns (i.e., created/modified on a Windows machine), the cfitsio
       library will be unable to read it properly, resulting in the  error:  [struct  stat="ERROR",  status=207,
       msg="illegal character in keyword"]

       It  is  best  for  the  background  correction  algorithms  if  the area described in the header template
       completely encloses all of the input images in their entirety. If parts of input images are "chopped off"
       by  the  header  template,  the  background correction will be affected. We recommend you use an expanded
       header for the reprojection and background modeling steps, returning to  the  originally  desired  header
       size  for  the  final  coaddition.  The  default background matching assumes that there are no non-linear
       background variations in the individual images (and therefore in the overlap differences).  If  there  is
       any  uncertainty  in  this  regard, it is safer to turn on the "level only" background matching (the "-l"
       flag in mBgModel.

COPYRIGHT

       2001-2015 California Institute of Technology, Pasadena, California

       If your research uses Montage, please include the following acknowledgement: "This research made  use  of
       Montage.  It  is  funded  by  the  National  Science  Foundation  under Grant Number ACI-1440620, and was
       previously funded by the National Aeronautics and Space Administration's Earth Science Technology Office,
       Computation  Technologies  Project,  under  Cooperative  Agreement  Number  NCC5-626 between NASA and the
       California Institute of Technology."

       The Montage distribution includes an adaptation of the MOPEX algorithm developed at the  Spitzer  Science
       Center.