MIDI Quality Control: QC parameters and trending

MIDI:
Quality Control parameters and trending

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QC1 LINKS

QC1 PLOTS

CURRENT

Instrumental Transfer Function

RON | Linearity

Transmission | Wavelength Calibration

Reference beams: High_sens | SCI_PHOT | OPEN |

Find here detailed information about the MIDI QC1 parameters and select plots. ASCII data from the QC1 database will be available in the future.

GENERAL INFORMATION

Some MIDI calibration data are presently monitored to extract information about their quality and the instrument performance. The quality information is extracted into so-called QC parameters.

All measured QC1 parameters are stored in a database. Their evolution with time is evaluated by the trending process.

Up to now, only the evolution of the Instrumental Transfer function has been followed on two different time scales : a night or a full period. For P74, we are measuring some QC1 parameters from the technical calibrations : REFPIX (position of the reference pixels of the beams), DSPTRN (transmission of the dispersive element), DETRON (detector Read out noise), DETLIN (detector linearity).

INSTRUMENT PROPERTIES TRENDED

The following parameters are monitored and used for instrument trending. The plots are available on the MIDI HC page.

detector

read noise
detector linearity

alignment

position of the reference pixels

dispersive elements (GRISM or PRISM)

transmission of the dispersive elements

Instrumental Transfer Function

More information under the specific TF page