Completion of model validation experiments at the Princeton starshade testbed

Stuart Shaklan; Anthony Harness; N. Jeremy Kasdin; Michael Galvin; K. Balasubramanian; Victor White; Karl Yee; Richard Muller; Phillip Willems; Philip Dumont; Simon Vuong; Doug Lisman

doi:10.1117/12.2629445

27 August 2022 Completion of model validation experiments at the Princeton starshade testbed

Stuart Shaklan, Anthony Harness, N. Jeremy Kasdin, Michael Galvin, K. Balasubramanian, Victor White, Karl Yee, Richard Muller, Phillip Willems, Philip Dumont, Simon Vuong, Doug Lisman

Author Affiliations +

Proceedings Volume 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave; 121802O (2022) https://doi.org/10.1117/12.2629445
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

Following the results of Starshade Milestone 1 in which we demonstrated broadband contrast better than 10⁻¹⁰, we have performed model validation experiments to show that diffraction models accurately predict the contrast due to perturbations representing the building blocks of the instrument error budget. The perturbations include the displacement of petal edge segments, sinusoidal petal edge shape deformations, global petal position errors, and random petal radial placement errors. We also show that the model accurately predicts the combined effects of two errors. The experiments result in a measured Model Uncertainty Factor (MUF) that is then applied to the starshade instrument contrast error budget.

Conference Presentation

Citation Download Citation

Stuart Shaklan, Anthony Harness, N. Jeremy Kasdin, Michael Galvin, K. Balasubramanian, Victor White, Karl Yee, Richard Muller, Phillip Willems, Philip Dumont, Simon Vuong, and Doug Lisman "Completion of model validation experiments at the Princeton starshade testbed", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 121802O (27 August 2022); https://doi.org/10.1117/12.2629445

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