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On-Orbit Results and Lessons Learned from the ASTERIA Space Telescope Mission

Show simple item record Smith, Matthew W. Donner, Amanda Knapp, Mary Pong, Christopher M. Smith, Colin Luu, Jason Pasquale, Peter Di Bocchino, Robert L. Jr. Campuzano, Brian Loveland, Jessica Collery, Cody Babuscia, Alessandra White, Mary Krajewski, Joel Seager, Sara 2020-05-14T22:56:53Z 2020-05-14T22:56:53Z 2018-08-04
dc.identifier.citation Small Satellites Conference (SmallSat 2018), Logan, Utah, August 4 - 9, 2018 en_US
dc.identifier.clearanceno 18-3380
dc.description.abstract The Arcsecond Space Telescope Enabling Research in Astrophysics (ASTERIA) was deployed from the International Space Station (ISS) on 20 November 2017, beginning a technology demonstration and opportunistic science mission to advance the state of the art in nanosatellite performance for astrophysical observations. The goal of ASTERIA is to achieve arcsecond-level line-of-sight pointing error and highly stable focal plane temperature control. These capabilities enable precision photometry—i.e. the careful measurement of stellar brightness over time—which in turn allows investigation of astrophysical phenomena such as transiting exoplanets. By the end of the 90-day prime mission, ASTERIA had achieved line-of-sight pointing stability of approximately 0.5 arcseconds root mean square (RMS) over 20-minute observations, pointing repeatability of 1 milliarcsecond RMS from one observation to the next, and focal plane temperature stability better than ±0.01 K over 20-minute observations. This paper presents an overview of the ASTERIA flight and ground system, summarizes the pre-delivery test campaign, and discusses the on-orbit performance obtained by the pointing and thermal control subsystems. We also describe the process for planning opportunistic science observations and present lessons learned from development and operations. Having successfully operated for over 200 days as of this writing, ASTERIA is currently in an extended mission to observe nearby bright stars for transiting exoplanets. 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.title On-Orbit Results and Lessons Learned from the ASTERIA Space Telescope Mission en_US
dc.type Preprint en_US

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