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On-orbit optical stability of the Nancy Grace Roman Space Telescope (RST) is a key requirement that enables multiple science objectives and drives multiple aspects of telescope design and analysis. Thermoelastic changes are typically large contributors to optical instability, and both extremely low CTE materials and extremely stable temperatures are needed to achieve the RST optical stability requirements. We will present the results from a test that demonstrated the L3Harris capability to sense and control temperatures to milli-kelvin levels of stability across a range of operating temperatures.
Peter Miller,Nicholas Ferry,Brian Martens,Dave Smith,Perry Voyer, andTony Whitman
"Roman Space Telescope: demonstration of integrated thermal control system test for the optical telescope assembly", Proc. SPIE 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, 121881L (29 August 2022); https://doi.org/10.1117/12.2633215
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Peter Miller, Nicholas Ferry, Brian Martens, Dave Smith, Perry Voyer, Tony Whitman, "Roman Space Telescope: demonstration of integrated thermal control system test for the optical telescope assembly," Proc. SPIE 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, 121881L (29 August 2022); https://doi.org/10.1117/12.2633215