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The segmented aperture interferometric nulling testbed (SAINT) III: control systems analysis and preliminary results
Author(s): Brian A. Hicks; Keith Jahoda; Peter Petrone; Teresa Sheets; Patricia Boyd
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Paper Abstract

This work presents a detailed current performance analysis for the telescope, pointing, and coronagraph com- ponent subsystems of the Segmented Aperture Interferometric Nulling Testbed (SAINT). The project pairs an active segmented mirror with the Visible Nulling Coronagraph (VNC) towards demonstrating capabilities for the future space observatories needed to directly detect and characterize Earth-sized worlds around nearby stars. We describe approaches to optimize subsystem wavefront sensing and control parameters, summarizing relevant scal- ing relations between these parameters, residual errors, and observed contrast measurements. Preliminary results from diagnostic testing under various control states are presented along with intermediate contrast measurements towards demonstrating the full system.

Paper Details

Date Published: 12 July 2018
PDF: 11 pages
Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106986M (12 July 2018); doi: 10.1117/12.2318756
Show Author Affiliations
Brian A. Hicks, Univ. of Maryland, College Park (United States)
NASA Goddard Space Flight Ctr. (United States)
Keith Jahoda, NASA Goddard Space Flight Ctr. (United States)
Peter Petrone, Sigma Space Corp. (United States)
NASA Goddard Space Flight Ctr. (United States)
Teresa Sheets, NASA Goddard Space Flight Ctr. (United States)
Patricia Boyd, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 10698:
Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave
Makenzie Lystrup; Howard A. MacEwen; Giovanni G. Fazio; Natalie Batalha; Nicholas Siegler; Edward C. Tong, Editor(s)

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