Trim Spectra By Wavelength

If you want to trim the wavelength range of your spliced spectra, e.g. to ignore data below the atmospheric cutoff, the command-line tool dbsp_trim is there to help you!

$ dbsp_trim --help
usage: dbsp_trim [-h] [--low LOW] [--high HIGH] fname [fname ...]

Trim spliced spectrum to wavelength range.

positional arguments:
fname        Final data output from DBSP_DRP to trim. Can be multiple files.

optional arguments:
  -h, --help   show this help message and exit
  --low LOW    Min wavelength after trimming. Default is 3300 Å.
  --high HIGH  Max wavelength after trimming. Default is 10500 Å.

To use dbsp_trim to trim all of your spliced spectra, located in the folder spliced, you can run the following command:

$ dbsp_trim --low 3200 --high 11000 spliced/*.fits