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Internal CLASS Format
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class
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From CLASS to FITS
Contents
Index
Developer Manual (04-apr-2025)
Please check directly the
CLASS
sources to get the most up-to-date information.
Subsections
Internal
CLASS
Format
Contents of one observation
File organization
File index
The Header and Data Sections
General Parameters
Position information
Spectroscopic information (for spectra)
Baseline information (for spectra or drifts)
Scan numbers of initial observations
Default plotting limits
Switching information (for spectra)
Calibration parameters
For Skydips observations. No associated data.
Gauss fit results (for spectra or drifts)
"Stellar shell" profile fit results (for spectra)
Hyperfine structure profile fit results (for spectra)
Hyperfine structure absorption profile fit results (for spectra)
Continuum drift description (for drifts)
Beam-switching parameters (for spectra or drifts)
Double gaussian and baseline fit results (for drifts)
Herschel Space Observatory (HIFI)
Comment Section
Data Section
Old OTF data format
Data Section Descriptor
Multiple spectra Data Section
CLASS
FITS format
Simple SPECTRUM Mode
BINTABLE Mode
Known keywords
Known columns and data storage
Once FITS Always FITS
