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This tutorial provides information for the the
Detector: monitoring
Health Check trending. The data are obtained with the Ks filter using the Nasmyth shutter
as a source: its flux is then dependent on the ambient temperature as
expected from the Planck law.
The Detector: monitoring trending is based on the measurement
of QC1 parameters of Detector Linearity calibration data obtained with
a dedicated Health Check OB executed approximately monthly.
The Detector Linearity OB consits of 10 sets of data - each set is one DARK and two Imaging FLAT
FIELD frames taken with the same DIT. The DIT is gradulally increased from set to set to increase the flat flux level