QC documentation system: QC procedure QCocam_qcheck.py for OMEGACAM

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QCocam_qcheck.py QCocam_shutter.py QCocam_readnoise.py QCocam_lingain.py
QCocam_bias.py QCocam_dark.py QCocam_dome.py QCocam_flat.py
QCocam_std.py QCocam_sci.py
 
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NAME QCocam_qcheck.py
VERSION 1.0 -- 2012-06-10 First draft of this QC report
SYNTAX Python
CALL measureQuality of data contained in $DFS_PRODUCT/QUICK_CHECK/$DATE
within processQC: processQC -a $AB
explicit call: QCocam_qcheck.py -a [$AB_name] -i [$level_of_interaction: 0-2]
INSTRUMENT OMEGACAM
RAWTYPE QUICK_CHECK (DPR.TYPE = FLAT,DOME,LIFETEST)
PURPOSE a) generates 1 QC report for ALL OmegaCAM CCD's
b) writes QC1 parameters into local QC1 database omegacam_qcheck
PROCINPUT No input is required:
a) $DATE is read from AB
b) the primary file is set in QCocam_qcheck.py and is the PRO.CATG=LIFETEST_CHECK product with the _0000.fits extension.
c) raw frames are implicitly read from the AB.
d) All reference products: LIFETEST_CHECK is found and read in from $DFO_ROOT_DIR_FC/calib/references/QUICK_CHECK/.
QC1TABLE trending | table(s) in QC1 database:
omegacam_qcheck
TRENDPLOT trending | HealthCheck plot(s) associated to this procedure:
trend_report_DOME_QC_level_lamp1_HC.html
QC1PAGE trending | associated documentation:
qcheck_QC1.html
QC1PLOTS
top

quickcheck.png
Quick-check dome flat QC report for all detectors:
top: displays the median level of the dome flat (in ADU) for each of the 32 OmegaCAM detectors. The blue points are for the current dome flat frame, while the red points are the reference values. The median dome flat level of all detectors is indicated as a blue line (current value) and as a red line (reference value) and are listed in the frame legend.
The shaded green area indicates the +/- 1 sigma value of the RON for all current detectors.
bottom: a read-out noise histogram indicating the RON (in ADU) vs. the number of detectors having this read noise. The blue histogram indicates the current read noise frame, while the red histogram is the reference frame.
QC1PARAM QC1 parameters written into QC1 table(omegacam_qcheck) 
SOURCE(header/script)      DBNAME                 value        description

 PRO.DATANCOM              datancom                1           number of raw files combined in pipeline processing
 QC.QUICK.CHECK.MEDIAN     qc_qcheck_median        29320.45    median counts in quick check dome flat (ADU)
 QC.QUICK.CHECK.MEAN       qc_qcheck_mean          28720.45    mean counts in quick check dome flat (ADU)
 QC.QUICK.CHECK.STDEV      qc_qcheck_std           56.4323     standard deviation of quick check dome flat (ADU)
 QCocam_qcheck.py          qc_temp_mosaic_plate    146.5       average temperature probe of mosaic plates from DET.TLM5/8 (QC script)
ALGORITHM Description of algorithms:
The quick-check dome flat is intended purely as a health/quality control check of the instrument. The single dome flat exposure is bias-subtracted and trimmed. qc_qcheck_median: the median level of the full-frame dome flat image is computed for this QC parameter.
qc_qcheck_mean: the mean level of the full-frame dome flat image.
qc_qcheck_std: the standard deviation of the full-frame dome flat image.
CERTIF - The quick-check dome flat levels, as seen for each detector in the QC report, should be with ~1000 counts of its reference value. A systematic difference (i.e. all detectors have lower flux levels when compared to the reference may indicate a problem with the dome flat lamp. Two lamps (FFLS1 and FFLS2 can be used. The QC script can distinquish between the two and will use a reference frame with the correct lamp. - Quick-check dome flat levels below 1000 counts indicates that either the M1 covers were in place during the exposure, or that the dome flat lamp was not turned on. Paranal should be informed and the AB rejected.
COMMENTS The OmegaCAM quick-check dome flat template is normally taken each day and consist of a single dome flat exposure. It is normally taken with the r_SDSS filter and with one of two dome flat lamps (FFLS1 or FFLS2, with the former being most prevalent).
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