QC documentation system: QC procedure qc_TWIL for VIRCAM

This documentation is intended both for QC scientists and SciOps astronomers (who may want to ignore the technical information displayed in grey).
 
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NAME qc_TWIL.sh
VERSION 1.0 -- 2006-10-11
2.0 -- 2008-06-10
3.0 -- 2010-01-28, updated for qcDocu 1.2.3
3.1 -- 2017-08-30, docu reviewed
SYNTAX SHELL
CALL called by processQC
from $DFS_PRODUCT/TWIL/$DATE as
CALL_SYNTAX TWIL 0000.fits &&qc_TWIL -a $AB -u vircam -e 0 -level 3 2\>\&1 \> $DFS_LOG/$AB.qclog&&
meaning output is logges to $DFS_LOG/$AB.qclog !!!
INSTRUMENT VIRCAM
RAWTYPE TWIL
PURPOSE quality control script for VIRCAM TWIL product frames
level 0 : writeQC scoreQC.
level 1 : calls gen_pipe_suppl_histofit_I.py -a $AB -e $extension
level 1 : calls gen_pipe_raw_stat_IV.py -a $AB -e $extension
level 2 : calls twil_qc_report_VI.py -a $AB -e $extension
level 3 : calls twil_pipe_suppl_raw_II.py -a $AB -e $extension
PROCINPUT -a AB -e extension -level level
QC1TABLE trending | table(s) in QC1 database:
vircam_twilight
TRENDPLOT trending | HealthCheck plot(s) associated to this procedure:
trend_report_TWILRAWAVG_K_AVG_HC.html | trend_report_RATIOTWILRMS_K_AVG_HC.html | trend_report_TWILRMS_K_AVG_HC.html | trend_report_TWILSN_K_AVG_HC.html | trend_report_TWILRAWRANGE_K_AVG_HC.html
QC1PAGE trending | associated documentation:
qc_VC_twil.html
QC1PLOTS
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mastertwilightflat.png
master twilight flat (snapshot from SkyCat)
ratiotwilightflat.png
ratio product. Ratio between current master twilight flat and history reference twilight flat.
twilightconfidencemap.png
confidence map for the master twilight flat
twil_qcreport_0.png
from upper left to lower right: vertifcal cross section of master twilight flat, horizontal cross section of master twilight flat, histogram and fit of master twilight flat. vertical cross section of ratio product, horizontal cross section of ratio product, image of the ratio product
twil_qcreport_1.png
twilight flat raw flux and detectror reset corrected flux
QC1PARAM pipeline generated QC1 parameters written into QC1 table:
QC.FLATRMS, qc_twil_rms rms of master twlight flat
QC.FLATRATIO_MED, qc_ratiotwil_med median of ratio product
QC.FLATRATIO_RMS, qc_ratiotwil_rms rms of ratio product
script based QC1 parameters written into QC1 table:
qc_post_man , center of master twilight flat histogram
qc_post_mdm , sigma of histogram fit
qc_twflat_medmin , minimum of all raw twilight flat medians
qc_twflat_medmax , maximum of all raw twilight flat medians
qc_twflat_medavg , average of all raw twilight flat medians
qc_twflat_medstd , standard deviation of all raw twilight flat medians
qc_twflat_medrng , range of all raw twilight flat medians
qc_twflat_raw_avg , qc_twflat_raw_std , qc_phot_noise , photon noise from raw frame central in sequence
qc_phot_SN , signal to (photon) noise
qc_twflat_fracsat , qc_twflat_medmax corrected for detector reset in units of saturation level
qc_twflat_fluxdep , master twilight flat flux in the box x1,y1=1,1500 x2,y2=2048,2048
ALGORITHM RMS: rms of the master flat product frame
FLATRATIO_MED: median of ratio flat (ratio flat = current flat divided by reference flat)
FLATRATIO_RMS: rms of ratio flat
algorithms of script based QC1 parameters are already mentioned above.
CERTIF twilight flat frames can be saturated or can be under-exposed
COMMENTS REFERENCE_TWILIGHT_FLAT are read from the AB (since 2009-11-01)
please watch the variable lower part of chip #16
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