| 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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| bottom plots | contact | |||||||||||||||||||||||
| NAME | sci_img_qc_2CCD.prg | ||||||||||||||||||||||
| VERSION |
1.0 -- adapted for FORS2 (PS, 05/2002) 1.1 -- adapted for FORS1, including HIGH filters (SM, 04/2007) | ||||||||||||||||||||||
| SYNTAX | MIDAS | ||||||||||||||||||||||
| CALL |
measureQuality from $DFS_PRODUCT/SCI_IMG/$DATE: inmidas -P -j "@@ $DFO_PROC_DIR/sci_img_qc.prg $date $PF" | ||||||||||||||||||||||
| INSTRUMENT | FORS1 | ||||||||||||||||||||||
| RAWTYPE | SCI_IMG | ||||||||||||||||||||||
| PURPOSE | compares raw and product SCI_IMG files for FORS1 QC assessment; the plots are later reviewed within certifyProducts. The first plot (sci_img_grap1.png) is stored as Postscript file in $DFO_PLT_DIR. | ||||||||||||||||||||||
| PROCINPUT |
raw image from AB; SCIENCE_REDUCED_IMG product; | ||||||||||||||||||||||
| QC1TABLE |
trending | table(s) in QC1 database: fors1_sci_img | ||||||||||||||||||||||
| TRENDPLOT |
trending | HealthCheck plot(s) associated to this procedure: trend_report_IQ_V_HC.html | ||||||||||||||||||||||
| QC1PAGE |
trending | associated documentation: imagequality/imagequality.html | ||||||||||||||||||||||
| QC1PLOTS top |
sci_img_grap1.png left: upper panel: comparison master (red) <-> raw (black) lower panel: middle row and middle column of reduced frame, central 100 pixels, in ADU right: histograms upper panel: all pixel values of reduced sci_img in log frequency histogram lower panel: histogram of background values in raw (black) and reduced (red) sci_img sci_img_disp1.png full display of reduced frame sci_img_disp2.png full display of raw frame sci_img_disp3.png close-up of central region (50x25 px) | ||||||||||||||||||||||
| QC1PARAM |
QC1 parameters written into QC1 table: QC1db names: iq | iq_rms | avg_ellipt | ellipt_rms | num_stars_rms | num_stars_iq QC1 params created by pipeline: none QC1 params created by this procedure: all are determined by SExtractor, which is called via the script imagequality_dfos_ds_2CCD | ||||||||||||||||||||||
| ALGORITHM |
Description of algorithms: iq: average FWHM in arcsec as determined by SExtractor iq_rms: rms of FWHM in arcsec avg_ellipt: average ellipticity as determined by SExtractor ellipt_rms: rms of ellipticity num_stars_rms: number of stars for rms (only from core of distribution) num_stars_iq: number of stars for iq and ellipticity, i.e. only stars with ellipticity <= 0.5, stellarity index >= 0.5 and flag 0 | ||||||||||||||||||||||
| CERTIF |
Reasons for rejection: - unusual structure; | ||||||||||||||||||||||
| COMMENTS | Elliptical shapes may be due to guiding errors or to moving targets (check OB name). | ||||||||||||||||||||||
| top | [2009-07-30T07:17:16] created by qcDocu v1.1, a tqs tool | ||||||||||||||||||||||
