QC PLOTS
	CURRENT	HISTORY
modulation demodulation efficiency
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Click on CURRENT to see the current trending (Health Check).    Click on HISTORY to see the historical evolution of the trending.

ZIMPOL measures the polarimetry modulation-demodulation efficiency (short: MODEMEFF) by acquiring a set of images of a highly polarized internal flat field source. The P/I image represents a map of the modulation demodulation efficiency.

QC1 parameters

parameter	QC1 database: table, name	procedure
modemeff	sphere_zimpol_modemeff, qc_med	median of the counts in the product frame
rms	sphere_zimpol_modemeff, qc_rms	rms of the counts in the product frame

Trending

counts and rms are trended for the broad band filters only. They come

• for both detectors (CAM1 and CAM2)
• for both polarimetry read modes