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Peter Zimmer (University of New Mexico)9/13/10, 10:45 AMAstronomical Monitoring IIGround-Based Telescopes supported by lidar and calibrated spectrophotometry can attain levels of precision for all-sky photometry previously only attainable from space-based instruments, with uncertainties dominated by fundamental photon counting statistics and detector noise. Earth’s atmosphere is a wavelength-, directionally- and time-dependent turbid refractive element for every...Go to contribution page
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John Woodward (NIST)9/13/10, 11:15 AMAstronomical Monitoring IINIST has undertaken a campaign to spectrophotometrically calibrate a suite of standard stars for top-of-the-atmosphere flux to a precision of better than 1%. We will describe our experimental approach and show some preliminary results. In addition to high quality spectrophotometric measurements, this project requires precise measurements of the atmospheric transmission in both the horizontal...Go to contribution page
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9/13/10, 11:45 AMAstronomical Monitoring II
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