Overview of Output Files

The following table lists the files generated during the reduction process. The generation of FITS files is generally skipped if they already exist in the output directory, whereas ‘.dat’ files are overwritten regardless of their prior existence.

Output filename [1]	Shape [2]	Created during	Description
{FRAME ID}_cp.fits	(Npix, Npix)	clean_pattern	Noise-subtracted detector image
{THAR}_{band}_{mmf}.fits	(Npix, Nord)	calibrate_wavelength	Wavelength solution for each pixel
hotpix_{band}_{mmf}.fits	(Npix, Nord)	flatten, or apnormalize, or apext_flatfield [3]	Hot pixel mask extracted by apertures
{FLAT}_{band}_{mmf}.fits	(Npix, Nord)	flatten	Flat spectrum before wavelength allocation
{FRAME ID}_fln_{mmf}.fits	(Npix, Nord)	apext_flatfield	Aperture-extracted and flat-fielded spectrum
{FRAME ID}_flnhp_{mmf}.fits	(Npix, Nord)	apext_flatfield	Same as above, with hot-pixel mask applied
n{FLAT}_{band}_{mmf}.fits	(Npix, Nord)	apext_flatfield	Aperture-extracted and flat-fielded FLAT spectrum
wblaze_{band}_{mmf}.dat	[4]	dispcor	Blaze function
w{FRAME NUMBER}_{mmf}.dat	[4]	dispcor	Wavelength allocated spectrum [5]
nw{FRAME NUMBER}_{mmf}.dat	[4]	normalize1D	Normalized spectrum [5]
ncw{FRAME NUMBER}_{mmf}.dat	[4]	normalize1D	Order-combined spectrum [5]

Footnotes

[1]

{band}: y or h; {mmf}: m1 or m2; {THAR}, {FLAT}: IDs of Stream2D for ThAr and FLAT, respectively; {FRAME ID}: File name of the FITS file without the extension; {FRAME NUMBER}: A 5-digit number

[2]

Npix: number of pixels on one side of the detector; Nord: number of orders

[3]

Generated by the function to which the hot pixel mask is first applied.

[4] (1,2,3,4)

See Step 2-3: Assigning Wavelength to the Extracted Spectrum and Step 2-5: Normalizing the Spectra for the data format.

[5] (1,2,3)

See also Output Spectra.