JPL Technical Report Server

WFIRST Coronagraph Flight Performance Modeling

Show simple item record Krist, John Effinger, Robert Kern, Brian Mandic, Milan Moody, Dwight Morrissey, Patrick Poberezhskiy, Ilya Riggs, A.J. Saini, Navtej Sidick, Erkin Trauger, John 2020-05-12T17:18:31Z 2020-05-12T17:18:31Z 2018-06-12
dc.identifier.citation SPIE Astronomical Telescopes + Instrumentation, Austin, Texas, June 12 - 14, 2018 en_US
dc.identifier.clearanceno 18-2951
dc.description.abstract As it has for the past few years, numerical modeling is being used to predict the on-orbit, high-contrast imaging performance of the WFIRST coronagraph, which was recently defined to be solely a technology demonstrator. A consequence has been a realignment of modeling priorities and revised applications of modeling uncertainty factors and margins, which apply to multiple factors such as pointing and wavefront jitter, thermally-induced deformations, polarization, and aberration sensitivities. At the same time, the models have increased in fidelity as additional parameters have been added, such as time-dependent pupil shear and mid-spatial-frequency deformations of the primary and secondary mirrors, detector effects, and reaction-wheel-speed-dependent pointing and wavefront jitter. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2018 en_US
dc.subject WFIRST en_US
dc.subject coronagraph en_US
dc.subject modeling en_US
dc.title WFIRST Coronagraph Flight Performance Modeling en_US
dc.type Preprint en_US

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