Changes
/* Output Files */
== Output Files ==
The QL tool puts output files in a subdirectory of the root data directory named redux/
e.g. if your data are being saved to '''/home/ccd/data/20161212/''', output files will appear in '''/home/ccd/data/20161212/redux/'''
The default files to produce (if the appropriate check boxes have not been unchecked in the QL GUI) are a '''1D ascii file''' and a '''1D extracted FITS spectrum''', '''a0161390_1D.txt''' and '''a0161390.ms.fits''' respectively, for an input image named a0161390.fits. Both of these contain the same data, just in a different format depending on the user's preference. Additionally, a log recording the extraction settings used is stored in '''a0161390.json'''. This last file is probably not of interest to most users.
=== ascii output ===
The ascii spectrum contains the following columns, as labelled in the header:
# wavelen objCounts skyAndBiasCounts
If the file has been wavelength calibrated, the first column contains the wavelength in A, one line per pixel number. Otherwise the first column will be pixel number (i.e. just running number from 1 to Npixels).
The second column is the counts in the extraction aperture after sky subtraction (if selected). Note: this is always '''summed counts within the aperture''', even if another extraction option (such as peak counts) is selected.
The third column contains the '''counts per pixel''' from the sky aperture(s). If sky subtraction has been unselected, these will be 0.
=== 1D FITS file ===
The .ms.fits file contains the 1D ascii data converted to look like an IRAF multispec format file. This makes it easy to read into IRAF. This conversion includes: placing extracted spectra and sky bands in appropriate IRAF multispec "bands"; applying the WCS following IRAF's WAT format; including aperture details in the way IRAF understands to state where the spectrum was extracted from the 2D image.
'''Other notes:''' Again, the extraction is only carried out on the individual image (named in the filename). The data has been flipped in x such that the output, extracted spectra run blue to red in increasing x. If comparing with the raw data, keep this in mind.
=== .json file ===
== Advanced config ==
