NAME

       mFitExec - Re-project and mosaic your images, with background rectification

SYNOPSIS

       mFitExec [-d] [-s statusfile] diffs.tbl fits.tbl diffdir

DESCRIPTION

       Runs  mFitplane  on  all the difference images identified by mOverlapsand generated by mDiffor mDiffExec.
       mFitExec creates a table of image-to-image difference parameters.

OPTIONS

       -d     Turns on debugging

       -s statusfile
              Writes output message to statusfile instead of to stdout

ARGUMENTS

       diffs.tbl
              Overlap table generated by mOverlaps, the last column of  which  contains  the  filenames  of  the
              difference images generated by mDiffExec.

       fits.tbl
              Output table of difference parameters.

       diffdir
              Directory containing difference images.

RESULT

       Generates  a  table,  fits.tbl,  containing  all  the  information generated by running mFitplane on each
       difference image.  nimages is the number of images for which this calculation was successfully performed,
       nfaied is the number that generated an error  condition  for  mFitplane,  nwarning  is  the  number  that
       generated  a  warning,  and  nmissing  is  the  number  of files that could not be found in the specified
       diffdir.

MESSAGES

       OK     [struct stat="OK", count=n, failed=nfailed, warning=nwarning, missing=nmissing]

       ERROR  Cannot open status file: statusfile

       ERROR  Can't open output file.

       ERROR  Invalid diffs metadata file: filename

       ERROR  Need columns: cntr1 cntr2 plus minus diff

       ERROR  svc library error

EXAMPLES

       First, diffs.tbl is generated for a collection of reprojected images using mOverlap.  Next, mDiffExec  is
       run  on those images to create output images in the subdirectory diffdir.  At this point, we are ready to
       run mFitExec:

       $ mFitExec diffs.tbl fits.tbl diff
              [struct stat="OK", count=42, failed=0, warning=0, missing=0]

       Output file: fits.tbl.

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.

Montage 5                                           Dec 2016                                         MFITEXEC(1)