NAME

       Match - match catalogs by 1D or 2D positions

SYNOPSIS

       astmatch [OPTION...] ASTRdata

DESCRIPTION

       Match  is  part of GNU Astronomy Utilities 0.22.  Match matches catalogs of objects and (by default) will
       return the re-arranged matching inputs. The optional log file will return low-level information about the
       match (indexs and distances).

       For more information, please run any of the following commands. In particular the second contains a  very
       comprehensive  explanation of Match's invocation: expected input(s), output(s), and a full description of
       all the options.

       All options and their values:
              $ astmatch -P

       Inputs/Outputs and options:
              $ info astmatch

       Full section in manual/book:
              $ info Match

       Full Gnuastro manual/book:
              $ info gnuastro

       If you couldn't find your answer in the manual, you can get direct help from experienced  Gnuastro  users
       and developers. For more information, please run:

              $ info help-gnuastro

       Match options:

              Input:

       -h, --hdu=STR/INT
              Extension name or number of first input.

       -H, --hdu2=STR/INT
              Extension name or number of second input.

       -I, --ignorecase
              Ignore case in matching/searching columns.

       --searchin=STR
              Select column(s): 'name', 'unit', 'comment'.

       --stdintimeout=INT
              Micro-seconds to wait for standard input.

              Output:

       -D, --dontdelete
              Don't delete output if it exists.

       -K, --keepinputdir
              Keep input directory for automatic output.

       -l, --logasoutput
              No rearranging of inputs, output is log file

       --notmatched
              Output is rows that don't match.

       --outcols=STR
              Out cols in CSV, 'a': first, 'b': second input.

       --outfitsnocommit
              No Git commit in 0-th HDU of output FITS.

       --outfitsnoconfig
              No metadata in 0-th HDU of output FITS.

       --outfitsnodate
              No 'DATE' in 0-th HDU of output FITS.

       --outfitsnoversions
              No versions in 0-th HDU of output FITS.

       -o, --output=STR
              Output file name.

       --tableformat=STR
              Table fmt: 'fits-ascii', 'fits-binary', 'txt'.

       --wcslinearmatrix=STR
              WCS linear matrix of output ('pc' or 'cd').

              Catalog matching

       -a, --aperture=FLT[,...]
              Acceptable aperture for matching.

       -c, --ccol1=STR[,STR]
              Column name/number of first catalog.

       -C, --ccol2=STR[,STR]
              Column name/number of second catalog.

       -d, --coord=FLT[,FLT]
              Manually input coordiantes.

       --kdtreehdu=STR
              HDU of k-d tree when --kdtree=FILE.fits.

       -k, --kdtree=STR
              build, internal, disable, CUSTOM-FITS-FILE.

              Operating modes:

       -?, --help
              give this help list

       --checkconfig
              List all config files and variables read.

       --cite BibTeX citation for this program.

       --config=STR
              Read configuration file STR immediately.

       --config-prefix=STR
              Custom prefix of option names config files.

       --lastconfig
              Do not parse any more configuration files.

       --log  Information about output(s) in a log file.

       --minmapsize=INT
              Min. bytes to avoid RAM automatically.

       -N, --numthreads=INT
              Number of CPU threads to use.

       --onlyversion=STR
              Only run if the program version is STR.

       -P, --printparams
              Print parameter values to be used and abort.

       --quietmmap
              Don't print mmap'd file's name and size.

       -q, --quiet
              Only report errors, remain quiet about steps.

       -S, --setdirconf
              Set default values for this directory and abort.

       --usage
              give a short usage message

       -U, --setusrconf
              Set default values for this user and abort.

       -V, --version
              print program version

       Mandatory  or  optional  arguments  to  long options are also mandatory or optional for any corresponding
       short options.

       GNU Astronomy Utilities home page: http://www.gnu.org/software/gnuastro/

REPORTING BUGS

       Report bugs to bug-gnuastro@gnu.org.

COPYRIGHT

       Copyright © 2015-2024 Free Software Foundation, Inc.  License GPLv3+: GNU General public license  version
       3 or later.
       This  is  free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent
       permitted by law.

       Written/developed by Mohammad Akhlaghi

SEE ALSO

       The full documentation for Match is maintained as a Texinfo manual.  If the info and Match  programs  are
       properly installed at your site, the command

              info Match

       should give you access to the complete manual.

GNU Astronomy Utilities 0.22                      February 2024                                         MATCH(1)