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20 October 2004 Effects of airborne particles on optical equipment
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Observatories are affected by dust particles in the air and those that settle on the mirror surfaces. Here we analyze seven years of weather and dust particle data from the Apache Point Observatory (APO) in Sunspot, New Mexico, to find correlations between dust and other weather factors, and also find correlations between the APO data and the Magdalena Ridge Observatory (MRO) weather data. Exposure of optics to strong dust events should be avoided, so we considered different possible observatory clousre criteria based on these data.
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Ivana Gorgievska and Carsten M. Steinebach "Effects of airborne particles on optical equipment", Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004);

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