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MJD56241-i » History » Version 1

Douglas Tucker, 11/12/2012 06:08 PM

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h1. MJD56241-i
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h2. Form of the Photometric Equation
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<pre>
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  i_std = -2.5log10(counts[ADU]/sec) - a_i - k_i*X - b_i*( (i-z)_std - 0.09) )
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  where:
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    i_std is the standard, or calibrated, magnitude of the star
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    (i-z)_std is the standard, or calibrated, i-z color of the star
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    a_i is the photometric zeropoint in i
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    k_i is the first-order extinction in i
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    b_i is the instrumental color term coefficient in i
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    X is the airmass
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    0.09 is a "fiducial" reference color for stars in i-z (based on SDSS experience)
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    Note that there is a separate photometric zeropoint (a_i) and 
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    instrumental color term coefficient (b_i) for each CCD.
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</pre>
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h2. NCSA Processing Results
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* attachment:psmFitDESDM-20121109i.csv : CSV file of Fit to the Photometric Equation
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* "PSM_QA_res_vs_ccd_20121109i.jpg":ftp://desar.cosmology.illinois.edu/DESFiles/desardata/OPS/red/20121111084045_20121109/QA/PSM/PSM_QA_res_vs_airmass_20121109i.jpg : Residuals vs. Airmass
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* "PSM_QA_res_vs_color_20121109i.jpg":ftp://desar.cosmology.illinois.edu/DESFiles/desardata/OPS/red/20121111084045_20121109/QA/PSM/PSM_QA_res_vs_color_20121109i.jpg : Residuals vs. Color
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* "PSM_QA_res_vs_mag_20121109i.jpg":ftp://desar.cosmology.illinois.edu/DESFiles/desardata/OPS/red/20121111084045_20121109/QA/PSM/PSM_QA_res_vs_mag_20121109i.jpg : Residuals vs. Magnitude
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* "PSM_QA_res_vs_mjd_20121109i.jpg":ftp://desar.cosmology.illinois.edu/DESFiles/desardata/OPS/red/20121111084045_20121109/QA/PSM/PSM_QA_res_vs_mjd_20121109i.jpg : Residuals vs. MJD
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* "PSM_QA_res_vs_imageid_20121109i.jpg":ftp://desar.cosmology.illinois.edu/DESFiles/desardata/OPS/red/20121111084045_20121109/QA/PSM/PSM_QA_res_vs_imageid_20121109i.jpg : Residuals vs. Image ID
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* "PSM_QA_res_vs_focalplaneXY_20121109i.jpg":ftp://desar.cosmology.illinois.edu/DESFiles/desardata/OPS/red/20121111084045_20121109/QA/PSM/PSM_QA_res_vs_focalplaneXY_20121109i.jpg : Residuals vs. x,y Position on Focal Plane
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* "PSM_QA_res_20121109i.txt":ftp://desar.cosmology.illinois.edu/DESFiles/desardata/OPS/red/20121111084045_20121109/QA/PSM/PSM_QA_res_20121109i.txt : Residuals in Tabular Format
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h2. Special Processing Results
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h2. Attached Files