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Proceedings Paper

Calibration of the LSST instrumental and atmospheric photometric passbands
Author(s): David L. Burke; T. Axelrod; Aurélien Barrau; Sylvain Baumont; Stéphane Blondin; Charles Claver; Alexia Gorecki; Zeljko Ivezic; Lynne Jones; Victor Krabbendam; Ming Liang; Abhijit Saha; Allyn Smith; R. Christopher Smith; Christopher W. Stubbs; Christophe Vescovi; LSST Project Team
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Paper Abstract

The Large Synoptic Survey Telescope (LSST) will continuously image the entire sky visible from Cerro Pachon in northern Chile every 3-4 nights throughout the year. The LSST will provide data for a broad range of science investigations that require better than 1% photometric precision across the sky (repeatability and uniformity) and a similar accuracy of measured broadband color. The fast and persistent cadence of the LSST survey will significantly improve the temporal sampling rate with which celestial events and motions are tracked. To achieve these goals, and to optimally utilize the observing calendar, it will be necessary to obtain excellent photometric calibration of data taken over a wide range of observing conditions - even those not normally considered "photometric". To achieve this it will be necessary to routinely and accurately measure the full optical passband that includes the atmosphere as well as the instrumental telescope and camera system. The LSST mountain facility will include a new monochromatic dome illumination projector system to measure the detailed wavelength dependence of the instrumental passband for each channel in the system. The facility will also include an auxiliary spectroscopic telescope dedicated to measurement of atmospheric transparency at all locations in the sky during LSST observing. In this paper, we describe these systems and present laboratory and observational data that illustrate their performance.

Paper Details

Date Published: 29 July 2010
PDF: 22 pages
Proc. SPIE 7737, Observatory Operations: Strategies, Processes, and Systems III, 77371D (29 July 2010); doi: 10.1117/12.857236
Show Author Affiliations
David L. Burke, SLAC National Accelerator Lab. (United States)
T. Axelrod, Steward Observatory, Univ. of Arizona (United States)
Aurélien Barrau, Lab. de Physique Subatomique et de Cosmologie de Grenoble, CNRS-IN2P3 (France)
Sylvain Baumont, Lab. de Physique Subatomique et de Cosmologie de Grenoble, CNRS-IN2P3 (France)
Stéphane Blondin, Ctr. de Physique des Particules de Marseille, CNRS-IN2P3 (France)
Charles Claver, National Optical Astronomy Observatory (United States)
Alexia Gorecki, Lab. de Physique Subatomique et de Cosmologie de Grenoble, CNRS-IN2P3 (France)
Zeljko Ivezic, Univ. of Washington (United States)
Lynne Jones, Univ. of Washington (United States)
Victor Krabbendam, National Optical Astronomy Observatory (United States)
Ming Liang, National Optical Astronomy Observatory (United States)
Abhijit Saha, National Optical Astronomy Observatory (United States)
Allyn Smith, Austin Peay State Univ. (United States)
R. Christopher Smith, Cerro Tololo Inter-American Observatory (United States)
Christopher W. Stubbs, Harvard-Smithsonian Ctr. for Astrophysics, Harvard Univ. (United States)
Christophe Vescovi, Lab. de Physique Subatomique et de Cosmologie de Grenoble, CNRS-IN2P3 (France)
LSST Project Team, LSST Corp. (United States)


Published in SPIE Proceedings Vol. 7737:
Observatory Operations: Strategies, Processes, and Systems III
David R. Silva; Alison B. Peck; B. Thomas Soifer, Editor(s)

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