Quality Control and
Data Processing

HC PLOTS
interferometric transmission
beam transmission
QC1 database (advanced users): browse | plot

The internal flux ratio (interferometric transmission) is measured for the pixels on the detector (science outputs). Data can be taken on sky (used to calibrate sky/interferometric data) or on the internal lamp (to monitor the instrument).

Four files are recorded, each of them has the shutter of one telescope opened (T), the other 3 beeing closed (F) : TFFF,FTFF, FFTF, FFFT. The recipe computes the photometric transmission matrix. The first 40 elements of the scans are discarded and all values of the rest of the scans are averaged. The normalization is done by averaging the flux of each telescope and per spectral channel.

The internal flux ratio (interferometric transmission) is measured for the pixels on the detector (science outputs).
Data can be taken on sky (used to calibrate sky/interferometric data) or on the internal lamp (to monitor the instrument).
Four files are recorded, each of them has the shutter of one telescope opened (T), the other 3 beeing closed (F) : TFFF,FTFF, FFTF, FFFT.

QC1_parameters

FITS key	QC1 database: table, name	definition	class*	HC_plot**	more docu
QC.KAPPA12.AVG	pionier_kappa_matrix..kappa_avg12	interferometric transmission bas 12	HC		[docuSys coming]
QC.KAPPA13.AVG	pionier_kappa_matrix..kappa_avg13	interferometric transmission bas 13	HC		[docuSys coming]
QC.KAPPA14.AVG	pionier_kappa_matrix..kappa_avg14	interferometric transmission bas 14	HC		[docuSys coming]
QC.KAPPA23.AVG	pionier_kappa_matrix..kappa_avg23	interferometric transmission bas 23	HC		[docuSys coming]
QC.KAPPA24.AVG	pionier_kappa_matrix..kappa_avg24	interferometric transmission bas 24	HC		[docuSys coming]
QC.KAPPA34.AVG	pionier_kappa_matrix..kappa_avg34	interferometric transmission bas 34	HC		[docuSys coming]
*Class: KPI - instrument performance; HC - instrument health; CAL - calibration quality; ENG - engineering parameter **There might be more than one.

Trending

The value for the kappa matrix is plotted for the internal lamp and for sky data .
the 2 different plots can be found in the internal kappa plot and in the "sky data" plot.
The Dark is plotted for the different set-up

Scoring&thresholds KAPPA MATRIX

The value of the thresholds have been defined together with the Instrument scientist

History

The evolution of the kappa matrix is shown here

Algorithm KAPPA MATRIX

The recipe computes the photometric transmission matrix. The first 40 elements of the scans are discarded and all values of the rest of the scans are averaged. The normalization is done by averaging the flux of each telescope and per spectral channel. ~