NAME

       mTranspose - Re-order axes of multi-dimensional data sets

SYNOPSIS

       mTranspose [-d level] [-s statusfile] incube.fits outcube.fits [outaxis1 outaxis2 [outaxi3 [outaxis4]]]

DESCRIPTION

       Montage (and a lot of other software) find it hard to work with WCS information that are not connected to
       the  first  two  axes  in  a datacube.  Rather than over-complicate all the cube-related software we have
       opted for having this utility for transposing the data.  The default for the program is  to  examine  the
       cube  and  rearrange the data so the first two axes represent sky longitude and latitude but the user can
       optionally specify the order of the rearrangement themselves (this also allows  transforming  reprojected
       cubes back into the original order for use by other programs).

OPTIONS

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

       -s statusfile
              mTranspose output and errors will be written to statusfile instead of stdout.

ARGUMENTS

       incube.fits
              Input FITS cube (3 or 4 dimensions).

       outcube.fits
              Output FITS cube.

       outaxis1 ... outaxis4
              The input axis numbers (1,2,3,4) in output order.

RESULT

       mTranspose rearranges the data value so the axes are in a different order.  As much as possible, the FITS
       header keywords are renamed accordingly but as it is not alway possible to identify which parameters have
       axis "subscripts" it may be necessary to manually modify the headera(e.g., using mGetHdr / mPutHdr) after
       the fact.

       $ mTranspose in.fits out.fits 3 2 1 4
              [struct stat="OK", mindata=2234.5, maxdata=10234.4]

MESSAGES

       OK     [struct stat = "OK", mindata=value, maxdata=value]

       ERROR  No status file name given

       ERROR  Cannot open status file: filename

       ERROR  No debug level given

       ERROR  Debug level string is invalid: 'string'

       ERROR  Debug level value cannot be negative

       ERROR  Invalid input file 'string'

       ERROR  Invalid output file 'string'

       ERROR  Axis ID 1 cannot be interpreted as an integer.

       ERROR  Axis ID 2 cannot be interpreted as an integer.

       ERROR  Axis ID 3 cannot be interpreted as an integer.

       ERROR  Axis ID 4 cannot be interpreted as an integer.

       ERROR  FITS library error

       ERROR  general error message

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                                       MTRANSPOSE(1)