Contamination control for the Aspera FUV SmallSat

Nicole Melso; Aafaque Khan; Hannah Tanquary; Elijah Garcia; Daniel Truong; Naomi Yescas; Sooseong Park; Sumedha Uppnor; Carlos Vargas; Haeun Chung; Tom Mcmahon; Keri Hoadley; Erika Hamden; Jason Corliss; Bill Verts; Simran Agarwal; Ramona Augustin; Peter Behroozi; Harrison Bradley; Trenton Brendel; Joe Burchett; Jasmine Martinez Castillo; Jacob Chambers; Heejoo Choi; Lauren Corlies; Fernando Coronado; Greyson Davis; Ralf-Jürgen Dettmar; Ewan Douglas; Giulia Ghidoli; Alfred Goodwin; Dave Hamara; Walt Harris; Carl Hergenrother; J. Christopher Howk; Miriam Keppler; Nazende ipek Kerkeser; John Kidd; DaeWook Kim; Jessica Li; Jamison Noenickx; Gabe Noriega; Ryan Pecha; Cork Sauve; David Schiminovich; Sanford Selznick; Oswald Siegmund; Rebecca Su; Ellie Wolcott; Dennis Zaritsky

doi:10.1117/12.3017698

21 August 2024 Contamination control for the Aspera FUV SmallSat

Nicole Melso, Aafaque Khan, Hannah Tanquary, Elijah Garcia, Daniel Truong, Naomi Yescas, Sooseong Park, Sumedha Uppnor, Carlos Vargas, Haeun Chung, Tom Mcmahon, Keri Hoadley, Erika Hamden, Jason Corliss, Bill Verts, Simran Agarwal, Ramona Augustin, Peter Behroozi, Harrison Bradley, Trenton Brendel, Joe Burchett, Jasmine Martinez Castillo, Jacob Chambers, Heejoo Choi, Lauren Corlies, Fernando Coronado, Greyson Davis, Ralf-Jürgen Dettmar, Ewan Douglas, Giulia Ghidoli, Alfred Goodwin, Dave Hamara, Walt Harris, Carl Hergenrother, J. Christopher Howk, Miriam Keppler, Nazende ipek Kerkeser, John Kidd, DaeWook Kim, Jessica Li, Jamison Noenickx, Gabe Noriega, Ryan Pecha, Cork Sauve, David Schiminovich, Sanford Selznick, Oswald Siegmund, Rebecca Su, Ellie Wolcott, Dennis Zaritsky

Author Affiliations +

Proceedings Volume 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray; 130932Q (2024) https://doi.org/10.1117/12.3017698
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

Aspera is a NASA Pioneers Mission designed to measure faint OVI emission around nearby galaxies with unprecedented sensitivity. The SmallSat payload consists of two identical co-aligned spectrographs, both operating in the Far Ultraviolet (FUV) between 1030−1040 Å. Missions operating at FUV wavelengths are particularly sensitive to contamination, as short wavelengths are easily scattered and absorbed by contaminants deposited on payload optical surfaces. A strict contamination control plan is critical to avoiding a severe loss in FUV throughput. Aspera contamination control efforts have been tailored to fit within the scope of a sub-Class D mission, a challenge that has become increasingly relevant as advances in FUV optics/detectors drive an uptick in smaller platform, contamination sensitive UV payloads. Contamination monitoring is used to audit the cleanroom environment, avoid outgassing contaminants under vacuum, and assess contaminant levels on payload optics. We present a detailed contamination budget through the mission end of life as well as our ongoing contamination monitoring efforts. We discuss protocols implemented for minimizing contamination-related performance degradation.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Nicole Melso, Aafaque Khan, Hannah Tanquary, Elijah Garcia, Daniel Truong, Naomi Yescas, Sooseong Park, Sumedha Uppnor, Carlos Vargas, Haeun Chung, Tom Mcmahon, Keri Hoadley, Erika Hamden, Jason Corliss, Bill Verts, Simran Agarwal, Ramona Augustin, Peter Behroozi, Harrison Bradley, Trenton Brendel, Joe Burchett, Jasmine Martinez Castillo, Jacob Chambers, Heejoo Choi, Lauren Corlies, Fernando Coronado, Greyson Davis, Ralf-Jürgen Dettmar, Ewan Douglas, Giulia Ghidoli, Alfred Goodwin, Dave Hamara, Walt Harris, Carl Hergenrother, J. Christopher Howk, Miriam Keppler, Nazende ipek Kerkeser, John Kidd, DaeWook Kim, Jessica Li, Jamison Noenickx, Gabe Noriega, Ryan Pecha, Cork Sauve, David Schiminovich, Sanford Selznick, Oswald Siegmund, Rebecca Su, Ellie Wolcott, and Dennis Zaritsky "Contamination control for the Aspera FUV SmallSat", Proc. SPIE 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 130932Q (21 August 2024); https://doi.org/10.1117/12.3017698

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