Thermal performance and design of the SPRITE far-UV CubeSat

Raymie Fotherby; Brian T. Fleming; Bret Lamprecht; Dana Chafetz; Jack Williams; Dmitry Vorobiev; Alex Tompkins; Rick Kohnert

doi:10.1117/12.2593760

24 August 2021 Thermal performance and design of the SPRITE far-UV CubeSat

Raymie Fotherby, Brian T. Fleming, Bret Lamprecht, Dana Chafetz, Jack Williams, Dmitry Vorobiev, Alex Tompkins, Rick Kohnert

Author Affiliations +

Proceedings Volume 11821, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXII; 1182116 (2021) https://doi.org/10.1117/12.2593760
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Conference Poster

Abstract

The thermal analysis of the SPRITE astrophysics CubeSat will be presented. As a far-UV instrument with a precision telescope, thermal control is essential to maintain instrument focus as well as to limit molecular contamination on the optics. A thermal model was created in Thermal Desktop to simulate the conductive and radiative heat transfer effects the components will experience during the mission. Mission specific orbital and attitude parameters were also incorporated to increase model fidelity. Several model parameters were created to simulate the most extreme temperature variations SPRITE would experience. A 'cold' case and a 'hot' case were created for charging and science attitudes, utilizing the bounds of recorded Earth albedo, solar flux, and IR Planetshine values. The results of these models are presented and outline the passive and active thermal control steps that will be employed by the SPRITE team to meet requirements.

Citation Download Citation

Raymie Fotherby, Brian T. Fleming, Bret Lamprecht, Dana Chafetz, Jack Williams, Dmitry Vorobiev, Alex Tompkins, and Rick Kohnert "Thermal performance and design of the SPRITE far-UV CubeSat", Proc. SPIE 11821, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXII, 1182116 (24 August 2021); https://doi.org/10.1117/12.2593760

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