SDSS Data Management and Photometric Quality Assessment
Astrophysics
2008-11-26 v1
Abstract
We summarize the Sloan Digital Sky Survey data acquisition and processing steps, and describe runQA, a pipeline designed for automated data quality assessment. In particular, we show how the position of the stellar locus in color-color diagrams can be used to estimate the accuracy of photometric zeropoint calibration to better than 0.01 mag in 0.03 deg2 patches. Using this method, we estimate that typical photometric zeropoint calibration errors for SDSS imaging data are not larger than ~0.01 mag in the g, r, and i bands, 0.02 mag in the z band, and 0.03 mag in the u band (root-mean-scatter for zeropoint offsets).
Cite
@article{arxiv.astro-ph/0410195,
title = {SDSS Data Management and Photometric Quality Assessment},
author = {Z. Ivezic and R. H. Lupton and D. Schlegel and B. Boroski and J. Adelman-McCarthy and B. Yanny and S. Kent and C. Stoughton and D. Finkbeiner and N. Padmanabhan and C. M. Rockosi and J. E. Gunn and G. R. Knapp and M. A. Strauss and G. T. Richards and D. Eisenstein and T. Nicinski and S. J. Kleinman and J. Krzesinski and P. R. Newman and S. Snedden and A. R. Thakar and A. Szalay and J. A. Munn and J. A. Smith and D. Tucker and B. C. Lee},
journal= {arXiv preprint arXiv:astro-ph/0410195},
year = {2008}
}
Comments
7 pages, color figures, published in AN 325, No. 6-8, 583-589