| 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 | vimos_ifucal.py | |||||||||||||||||||||||||||
| VERSION |
1.0 -- August 2009 1.0.1 -- supporting numpy V1.3 and matplotlib V0.99 (2010-02-03) 1.1 -- including vimos_ifuplt (2010-10-28) 1.1.1 -- create cover sheet (2011-05-20) 1.1.2 -- skip call of scoreQC (2011-05-31) 1.1.3 -- new QC parameters: num_overexp, level_overexp (2012-06-20) 1.1.4 -- changes needed for muc (2013-02-07) 1.1.5 -- function overexp now imported from qclib (2013-04-29) 1.1.6 -- changes for qc_imadisp v1.5 (2014-01-20) 1.1.7 -- remove usage of has_key dictionary attribute (2014-03-12) | |||||||||||||||||||||||||||
| SYNTAX | PYTHON | |||||||||||||||||||||||||||
| CALL |
processQC from $DFS_PRODUCT/IFU_CAL/$DATE /home/vimos/python/vimos_ifucal.py -i -a $AB | |||||||||||||||||||||||||||
| INSTRUMENT | VIMOS | |||||||||||||||||||||||||||
| RAWTYPE | IFU_CAL; consisting of 1 to 5 flat exposures through IFU plus one arc lamp exposure | |||||||||||||||||||||||||||
| PURPOSE | QC check of IFU calibration products | |||||||||||||||||||||||||||
| PROCINPUT | products: IFU_ARC_SPECTRUM_EXTRACTED, IFU_IDS (inverse dispersion solution) | |||||||||||||||||||||||||||
| QC1TABLE |
trending | table(s) in QC1 database: vimos_ifu_wave | vimos_ifu_flat | vimos_ifu_trace | vimos_ifu_lamps | vimos_ifu_score | |||||||||||||||||||||||||||
| TRENDPLOT |
trending | HealthCheck plot(s) associated to this procedure: trend_report_IFURESO_HRo_HC.html | trend_report_IFUDISP_HRo_HC.html | trend_report_IFUSTAB_HRo_HC.html | trend_report_SLOPE_HRo_HC.html | trend_report_IFULOST_HRo_HC.html | |||||||||||||||||||||||||||
| QC1PAGE |
trending | associated documentation: ifu_calib_qc1.html | |||||||||||||||||||||||||||
| QC1PLOTS top |
ifucal1.png display of IFU_ARC_SPECTRUM_EXTRACTED, i.e. extracted fibre spectra; example for HR_orange x axis: wavelength; y axis: fibre all sky lines should be aligned across the fibres ifucal2.png same as plot 1, but for LR_red (with IFU shutter ON), as used for daily Health Check ifucal3.png overview of IFU_ARC_SPECTRUM_EXTRACTED for all four quadrants (whole frames) ifucal4.png overview of IFU_ARC_SPECTRUM_EXTRACTED for all four quadrants (central areas) | |||||||||||||||||||||||||||
| QC1PARAM |
QC1 parameters written in QC1 database: QC1 DB names: vimos_ifu_wave: ids_rms | resol[1,2,3] | resol[1,2,3]_rms | resol[1,2,3]_lambda | ids[1,2,3,4]_coeff[0,1,2,3,4] vimos_ifu_flat: flux | flux_rms | lambda_start | lambda_end vimos_ifu_trace: num_lost[1,2,3,4] | trace[1,2,3,4]_rms | ref_row[1,2,3,4] | trace[1,2,3,4]_central | trace[1,2,3,4]_slope | trace[1,2,3,4]_coeff[0,1,2,3,4] Remark: most parameters are determined separately for each of the 4 pseudo slits; MR and HR observations use only pseudo slit 2. All parameters are calculated by the pipeline recipe. | |||||||||||||||||||||||||||
| ALGORITHM |
Description of algorithms: ids_rms: standard deviation of the IDS residuals resol[1,2,3]: spectral resolution at three different wavelength, averaged over fibres resol[1,2,3]_rms: standard deviation of resolution resol[1,2,3]_lambda: wavelengths of the arc lines used for resolution calculation ids[1,2,3,4]_coeff[0,1,2,3,4]: median of polynomial coefficients 0 to 4 of the inverse dispersion solution for pseudo slits 1 to 4 flux: integrated signal per fibre per second between lambda_start and lambda_end from IFU flat flux_rms: rms of flux num_lost[1,2,3,4]: number of fibres that could not be successfully traced on each pseudo slit trace[1,2,3,4]_rms: mean of standard deviation for fibre tracing ref_row[1,2,3,4]: Y position on CCD where each fibre is identified and tracing begins trace[1,2,3,4]_central: number of the identified fibre closest to the CCD X centre at Y=ref_row[1,2,3,4] trace[1,2,3,4]_slope: slope of a linear fit to the fibre tracing, 400 pixels centered at ref_row[1,2,3,4] are used trace[1,2,3,4]_coeff[0,1,2,3,4]: median of polynomial coefficients 0 to 4 of fibre tracing; coefficient 4 is used only for HR grisms | |||||||||||||||||||||||||||
| CERTIF |
Reasons for rejection: extracted spectrum in IFU_ARC_SPECTRUM_EXTRACTED shows that arc lines in different fibres are not aligned; if number of lost fibres during tracing or wavelength calibration is unusually high (compared to previous values as visible on the HC pages) changing of method (blind vs. first guess) for fibre identification and line identification may help; this can be achieved by commenting the IFU_IDENT table in the SOF (i.e. blind fibre identification) and/or by specifying the recipe parameter LineIdent=FirstGuess | |||||||||||||||||||||||||||
| COMMENTS | NONE | |||||||||||||||||||||||||||
| top | [2016-03-11T12:31:25] created by qcDocu v1.1.2, a tqs tool | |||||||||||||||||||||||||||
