End-to-end numerical modeling of the Roman Space Telescope Coronagraphic Instrument

John E. Krist; John Steeves; Navtej Saini; Brandon Dube; David Arndt

doi:10.1117/12.2677110

6 October 2023 End-to-end numerical modeling of the Roman Space Telescope Coronagraphic Instrument

John E. Krist, John Steeves, Navtej Saini, Brandon Dube, David Arndt

Proceedings Volume 12680, Techniques and Instrumentation for Detection of Exoplanets XI; 126800U (2023) https://doi.org/10.1117/12.2677110
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

The Roman Space Telescope will be launched in a few years, and its Coronagraphic Instrument (CGI) is being assembled after a decade of development. The on-orbit performance of CGI has been predicted using numerical modeling, including diffraction and wavefront control modeling to simulate images and finite element modeling to estimate wavefront instabilities due to thermal and vibrational (reaction wheels) disturbances. We describe the final end-to-end modeling results representing a realistic observing scenario.

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Citation Download Citation

John E. Krist, John Steeves, Navtej Saini, Brandon Dube, and David Arndt "End-to-end numerical modeling of the Roman Space Telescope Coronagraphic Instrument", Proc. SPIE 12680, Techniques and Instrumentation for Detection of Exoplanets XI, 126800U (6 October 2023); https://doi.org/10.1117/12.2677110

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KEYWORDS

Coronagraphy

Equipment

Numerical modeling

Space telescopes

Modeling

Telecommunications

Wavefronts

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