ALPACA Cerro Tololo Lunar Scintillometer Seeing Plots


Clicking on the links below opens a jpeg figure. These show the estimated total seeing, upper-level seeing, and transparency. The total seeing is derived from the measured scintillation index, assuming a typical turbulence profile. The upper-level seeing is derived from the intensity covariance on the longest (1.5m) baseline, and represents the integrated seeing above approximately 300 m. The transparency is derived from the observed lunar flux. Seeing values are in arcsec FWHM, referred to the zenith at a wavelength of 0.5 um. Values plotted are one-minute averages.

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Last updated: 2007/06/06