astscript-sort-by-night1

Sort input fits files by night

Usage

astscript-sort-by-night [OPTION] FITS-files

Overview

This script is part of GNU Astronomy Utilities 0.23.

This script will look into a HDU/extension for a header keyword in the given FITS files and interpret the value as a date. The inputs will be separated by "night"s. The definition a "nights" is set with the '--hour' option (just note that the FITS time may be recorded in UTC, not local time)! It will then print a list of all the input files along with the following two columns: night number and file number in that night (sorted by time). With '--link' a symbolic link (one for each input) will be made with names including the night classifier. With '--copy' instead of a link, a copy of the inputs will be made.

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

`Inputs/Outputs and options:`	$ info astscript-sort-by-night
`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

astscript-sort-by-night options:

: Input:

-h, --hdu=STR: HDU/extension of all input FITS files.

-k, --key=STR: Header keyword specifying date to use.

-H, --hour=FLT: Hour in next day to be included in night. Be aware of time zones with this argument!

: Output:

-l, --link: list of inputs with night and file number.

-c, --copy: Copy the files, don't make symbolic links.

-p, --prefix=STR: Prefix for outputs of '--copy' and '--link'.

: Operating mode:

-?, --help: Print this help list.

--cite: BibTeX citation for this program.

-q, --quiet: Don't print any extra information in stdout.

-V, --version: Print program version.

--stdintimeout: Micro-seconds to wait for standard input (used for operations within this script).

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/

Releases

3 releases since Debian 11 (Bullseye); the text changed 2 times.

--stdintimeout since Debian 12 (Bookworm); -? since Debian 12 (Bookworm).