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GAINS section

The GAINS section is not a part of the MBFITS raw-data format, and contains information relevant to data calibration (together with the weather data, that are written to the MONITOR section). There is a separate GAINS section for each frontend-backend combination (i.e. GAINS1, GAINS2 etc.).


GAINS1%PCOLD $n_{\rm bd} \times n_{\rm pix} \times n_{\rm cpb}$ D backend count rate of cold load
GAINS1%PHOT $n_{\rm bd} \times n_{\rm pix} \times n_{\rm cpb}$ D backend count rate on ambient load
GAINS1%PSKY $n_{\rm bd} \times n_{\rm pix} \times n_{\rm cpb}$ D backend count rate on sky
GAINS1%LCALOF D deg longitude offset for sky measurement
GAINS1%BCALOF D deg latitude offset for sky measurement
GAINS1%TAUZEN $n_{\rm bd} \times n_{\rm pix}$D Np zenith opacity
GAINS1%TAUZENIMAGE $n_{\rm bd} \times n_{\rm pix}$ D Np zenith opacity in image band
GAINS1%TATMS $n_{\rm bd} \times n_{\rm pix}$D K atmospheric emission temperature
GAINS1%TATMI $n_{\rm bd} \times n_{\rm pix}$D K atmospheric emission temperature (image band)
GAINS1%TSYS $n_{\rm bd} \times n_{\rm pix}$D K system temperature
GAINS1%TRX $n_{\rm bd} \times n_{\rm pix}$ D K receiver temperature
GAINS1%H2OMM $n_{\rm bd} \times n_{\rm pix}$D mm precipitable water vapour
GAINS1%GAINARRAY $n_{\rm bd} \times n_{\rm pix} \times n_{\rm cpb}$ D gain array (= PHOT$-$PSKY)
GAINS1%FEBE C*17 frontend-backend identification


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Gildas manager 2018-08-15