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Title:
SDSS data management and photometric quality assessment
Authors:
Ivezić, Ž.; Lupton, R. H.; Schlegel, D.; Boroski, B.; Adelman-McCarthy, J.; Yanny, B.; Kent, S.; Stoughton, C.; Finkbeiner, D.; Padmanabhan, N.; Rockosi, C. M.; Gunn, J. E.; Knapp, G. R.; Strauss, M. A.; Richards, G. T.; Eisenstein, D.; Nicinski, T.; Kleinman, S. J.; Krzesinski, J.; Newman, P. R.; Snedden, S.; Thakar, A. R.; Szalay, A.; Munn, J. A.; Smith, J. A.; Tucker, D.; Lee, B. C.
Affiliation:
AA( Princeton University Observatory, Princeton, NJ 08544, USA; H.N. Russell Fellow, on leave from the University of Washington), AB( Princeton University Observatory, Princeton, NJ 08544, USA), AC( Princeton University Observatory, Princeton, NJ 08544, USA), AD(Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USA), AE(Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USA), AF(Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USA), AG(Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USA), AH(Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USA), AI( Princeton University Observatory, Princeton, NJ 08544, USA), AJ(Princeton University, Dept. of Physics, Princeton, NJ 08544, USA), AK(University of Washington, Dept. of Astronomy, Box 351580, Seattle, WA 98195, USA), AL( Princeton University Observatory, Princeton, NJ 08544, USA), AM( Princeton University Observatory, Princeton, NJ 08544, USA), AN( Princeton University Observatory, Princeton, NJ 08544, USA), AO( Princeton University Observatory, Princeton, NJ 08544, USA), AP(Steward Observatory, 933 N. Cherry Ave., Tucson, AZ 85721, USA), AQ(CMC Electronics Aurora, 43W752 Route 30, Sugar Grove, IL 60554, USA), AR(Apache Point Observatory, 2001 Apache Point Road, P.O. Box 59, Sunspot, NM 88349-0059, USA), AS(Apache Point Observatory, 2001 Apache Point Road, P.O. Box 59, Sunspot, NM 88349-0059, USA), AT(Apache Point Observatory, 2001 Apache Point Road, P.O. Box 59, Sunspot, NM 88349-0059, USA), AU(Apache Point Observatory, 2001 Apache Point Road, P.O. Box 59, Sunspot, NM 88349-0059, USA), AV(Department of Physics and Astronomy, The John Hopkins University, 3701 San Martin Drive, Baltimore, MD 21218, USA), AW(Department of Physics and Astronomy, The John Hopkins University, 3701 San Martin Drive, Baltimore, MD 21218, USA), AX(U.S. Naval Observatory, Flagstaff Station, P.O. Box 1149, Flagstaff, AZ 86002, USA), AY(Space Instr. & Systems Engineering, ISR-4, MS D448, Los Alamos National Laboratory Los Alamos, NM 87545, USA), AZ(Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USA), BA(Lawrence Berkeley National Laboratory, One Cyclotron Road, MS 50R5032, Berkeley, CA 94720, USA)
Publication:
Astronomische Nachrichten, Vol.325, Issue 6, p.583-589 (AN Homepage)
Publication Date:
10/2004
Origin:
AN
Keywords:
surveys, techniques: photometric, methods: data analysis, stars: fundamental parameters, stars: statistics
DOI:
10.1002/asna.200410285
Bibliographic Code:
2004AN....325..583I

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).
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