NAME

       query - query remote data servers and download

SYNOPSIS

       astquery [OPTION...] DATABASE

DESCRIPTION

       query  is  part  of  GNU Astronomy Utilities 0.18.  query is just a place holder used as a
       minimal set of files and functions necessary for a program in Gnuastro. It can be used for
       learning or as a template to build new programs.

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

       All options and their values:
              $ astquery -P

       Inputs/Outputs and options:
              $ info astquery

       Full section in manual/book:
              $ info query

       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

       query options:

              Input:

       --ccol=STR,STR
              Coordinate (RA, Dec) column names in dataset.

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

       -L, --limitinfo=STR
              Only retrieve dataset info. with this string.

       -Q, --query=STR
              The raw query as a simple string.

       -v, --overlapwith=FITS
              Set query region to overlap with this image.

              Output:

       --dry-run
              Only print the download command, don't run it.

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

       -i, --information
              Print database or dataset information.

       -k, --keeprawdownload
              Don't delete raw downloaded file.

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

       -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').

              Generate query internally (not compatible with '--query'):

       -b, --noblank=STR[,STR]
              No rows with blank value in given column(s).

       -c, --column=STR
              Column names to download from catalog.

       -C, --center=FLT,FLT
              Center coords. to select by region in sky.

       -g, --range=STR,FLT:FLT
              Range of selected targets in given column.

       -H, --head=INT
              Only download given number of top rows.

       -r, --radius=FLT
              Radius around --center to select targets.

       --sort=STR[,STR]
              Sort based on values of given columns.

       -s, --dataset=STR
              Name of dataset in database.

       -w, --width=FLT[,FLT]
              Width of box around --center to select targets.

              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.

       --lastconfig
              Do not parse any more configuration files.

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

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

       -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  ©  2015-2022 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 query is maintained as a Texinfo manual.  If the info and query
       programs are properly installed at your site, the command

              info query

       should give you access to the complete manual.