Predictive Thermal Control (PTC) technology to enable thermally stable telescopes: year four status

H. Philip Stahl; Thomas E. Brooks; Ron Eng; Tomasz Lis; Mark Stahl; Roy Young

doi:10.1117/12.2593733

24 August 2021 Predictive Thermal Control (PTC) technology to enable thermally stable telescopes: year four status

H. Philip Stahl, Thomas E. Brooks, Ron Eng, Tomasz Lis, Mark Stahl, Roy Young

Author Affiliations +

Proceedings Volume 11820, Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems III; 118200A (2021) https://doi.org/10.1117/12.2593733
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

The Predictive Thermal Control (PTC) project is a multiyear effort initiated in Fiscal Year 2017 to mature the Technology Readiness Level (TRL) of technologies required to enable ultra-thermally-stable ultraviolet/optical/infrared (UVOIR) space telescope primary-mirror assemblies for ultra-high-contrast observations of exoplanets. PTC has three objectives: validate thermal optical performance models, derive thermal system stability specifications, and demonstrate predictive thermal control. PTC has successfully accomplished all of its objectives and matured the technology to at least TRL-5 via demonstration in a relevant thermal/vacuum environment with the 1.5-m ULE© AMTD-2 mirror.

Conference Presentation

Citation Download Citation

H. Philip Stahl, Thomas E. Brooks, Ron Eng, Tomasz Lis, Mark Stahl, and Roy Young "Predictive Thermal Control (PTC) technology to enable thermally stable telescopes: year four status", Proc. SPIE 11820, Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems III, 118200A (24 August 2021); https://doi.org/10.1117/12.2593733

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