The most recent results from wet washing the 2016 coating of the 6.5m MMT primary mirror in situ

Ricardo Ortiz; William Goble

doi:10.1117/12.3027052

28 August 2024 The most recent results from wet washing the 2016 coating of the 6.5m MMT primary mirror in situ

Ricardo Ortiz, William Goble

Proceedings Volume 13098, Observatory Operations: Strategies, Processes, and Systems X; 1309826 (2024) https://doi.org/10.1117/12.3027052
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

By performing mirror washing one to two times per year, we have surpassed the expected life of our coating. The broader and, therefore, more complete picture for our 2016 unprotected aluminum coating will be presented. After years of periodic water, soap, and cotton swab dabbing of the standard aluminum coating at the MMT, on-glass mirrors-coating properties were maintained close to near-fresh coating levels without detectable scratching of the bare aluminum surface. Data will be shared about the life of the 2016 coating using our Konica Minolta Spectrophotometer CM-600d.

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Ricardo Ortiz and William Goble "The most recent results from wet washing the 2016 coating of the 6.5m MMT primary mirror in situ", Proc. SPIE 13098, Observatory Operations: Strategies, Processes, and Systems X, 1309826 (28 August 2024); https://doi.org/10.1117/12.3027052

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