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File suffixes

Frame suffixes


Suffix Kept Description
_raw Y The raw frame
_adu Y Scaled to ADUs
_sbf N Bias frame subtracted
_pov N Poisson variance added
_rnv N Readnoise variance added
_bgl N Shows which pixels are background limited
_bp N Bad pixels masked
_ext Y Slices extracted and approximately aligned
_ff N Flat fielded
_nf Y Normalised flat
_bpf N Pixels previously marked as bad filled with interpolated values
_ss N sky-subtracted
_scr Y All rows scrunched to common wavelength scale
_cub Y Formed into a datacube
_dbsc N All spectra in datacube divided by standard
_im Y Image extracted from datacube



Group suffixes


Suffix Kept Description
_scr Y All rows scrunched to common wavelength scale
_cub Y Formed into a datacube
_mos Y Mosaicked datacube
_dbsc Y All spectra in datacube divided by standard
_im Y Image extracted from datacube



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ORAC-DR -- integral field spectroscopy data reduction
Starlink User Note 246
Stephen Todd
Edinburgh University
June 2004
E-mail:ussc@star.rl.ac.uk

Copyright © 2004 Particle Physics and Astronomy Research Council