Documentation of QC procedures: procedure qc_DARK for SINFONI

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qc_DARK QCsinfo_flat.py qc_WAVE QCsinfo_dist.py qc_LINE QCsinfo_pupil.py QCsinfo_hcao.py qc_OBSNOD
NAME qc_DARK.sh
VERSION 1.0 -- 2006-06-15 fill template by handbook
1.1 -- 2006-07-07 certified
INSTRUMENT SINFONI
SYNTAX SHELL
RAWTYPE DARK
CALL measureQuality
from $DFS_PRODUCT/DARK/$DATE:
qc_DARK -d $DATE -f $primfile
PURPOSE a) calculates post-pipeline FPN and OES QC1 parameters
b) generates QC report
c) writes QC1 parameters into local list
PROCINPUT a) $DATE in yyyy-mm-dd,
b) $primfile is the PRO.CATG=MASTER_DARK product with the _0000.fits extension.
c) raw frames are implicitely read from the AB.
d) Reference MASTER_DARK and BP_MAP_HP are implicitely read from $DFO_QC_DIR/references/DARK.
QC1TABLE trending | table(s) in QC1 database:
sinfoni_dark
TRENDPLOT trending | current trending plot(s) associated to this procedure:
trend_report_DARK_300_HC.html
QC1PAGE trending | associated trending page(s):
dark_QC1.html
QC1PLOTS

dark1.png
display MASTER_DARK on RealTimeDisplay
dark2.png
display BP_MAP_HP (hot pixel map) on RealTime Display
dark3.gif
UL: The mean (collapsed) column (red) and the column at X=2048/4 of the product frame.
UC: Two rows at Y=2048/4 (red) and Y=2048*(3/4) (blue) of the product frame
UR: A parabolic function (blue) is fit to the central part (-3 to 3 counts) of the log of the raw2-raw1 difference frame (red). Histogram of the raw3-raw2 difference frame (green).
LL: Zoom of UC
LC: The Y=500 row of the product minus the Y=500 row of a reference product. Y=600 row of the product minus the Y=600 row of a reference product. X=500 column of the master minus the X=500 column of a reference product. The reference product is renewed usually once a period or after an intervention.
LR: Histogram of the difference frame (second raw minus first raw) (red) and Gaussian fit between -3 and 3 counts (blue). Histogram of the raw3-raw2 difference frame (green)
QC1PARAM QC1 parameters written into QC1 table:
FITSNAME, DBNAME , typical value, description:
QC.DARKMED.AVE , qc_darkmed_ave, (20.207021), Average of raw darks medians
QC.DARKMED.STDEV , qc_darkmed_stdev (1.741316), STDEV of raw darks medians
QC.RONRMS , qc_ronrms, (441.092956), RMS on Read Out Noise
QC.DARKFPN , qc_dark_fpn, (2.53823), Fixed Pattern Noise of combined frames
QC.RON1 , qc_ron1, (3.517257), Read Out Noise from first raw frame pair
QC.RON2 , qc_ron2, (3.524859), Read Out Noise from second raw frame pair
QC.BP-MAP.METHOD , qc_bpm_method, (Normal), bad pixel map method (here hot pixel map)
QC.BP-MAP.NBADPIX, qc_bpm_nbadpix, (200), number of hot pixels
NONE , qc_oes1, (0.0234), oddeven column stripe of first raw frame
NONE , qc_oes2, (0.0234), oddeven column stripe of second raw frame
NONE , qc_oes3, (0.0234), oddeven column stripe of third raw frame
NONE , qc_gaf_fpn (2.543), Fixed Pattern Noise of combined frames
ALGORITHM Description of algorithms:
qc_darkmed_ave : Average of (3) raw darks medians
qc_darkmed_stdev : STDEV of (3) raw darks medians
qc_ronrms : RMS on Read Out Noise
qc_dark_fpn : Use the window of the MASTER_DARK product frame specified by recipe command line parameters dark-qc_fpn_xmin/xmax/ymin/ymax (default is the whole chip). Take dark-qc_fpn_nsamp (default dark-qc_fpn_nsamp = 100) randomly distributed samples of (2 hsize +1)*(2 hsize +1) (default hsize = 4) sample size from MASTER_DARK. Take median of all sample stdev. This is the isaac RON algorithm applied to a master dark to get the fixed pattern noise.
qc_ron1 : Apply the formulae of DARKFPN to the difference of the first two consecutive raw DARK frames. Convert to NDIT=1 and single raw frame (factor of sqrt(2)).
qc_ron2 As RON1 but for second pair of raw frames.
qc_bpm_method: Bad pixel map method
qc_bpm_nbadpix: All pixels above kappa * sigma, where kappa is --bp_noise-thresh_sigma_fct (default = 10)
qc_oes1, (not calculated by pipeline): Of the first dark raw frame, calculate the median of all odd columns and all even columns for slitlet #25 only and derive stdev. This parameter monitors sporadic occurence of odd-even signal in slitlet #25
qc_oes2, not calculated by pipeline): As qc_oes1, but for second raw frame
qc_oes3, (not calculated by pipeline): As qc_oes1, but for third raw frame
qc_gaf_fpn, (not calculated by pipeline) generate histogram of MASTER_DARK and fit Normal distribution, read stdev.
CERTIF Quality diminishing features (not under control, but tolerated) :
- slitlet #25 (the #31th slitlet counted from left) might contain additional oddeven signal
- random hot/cold pixels in slitlet #31 (the #18th counted from left)
Reasons for rejection:
- persistance (standard star traces) could become apparent in UL quadrant at large DIT.
See also SINFONI problems page.
COMMENTS local difference frames (current product minus last one) and reference difference frames (current product minus reference) are provided in the detailed section of certifyProducts
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