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15 September 2016 Future large-aperture UVOIR space observatory: reference designs
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Our joint NASA GSFC/JPL/MSFC and STScI study team has used community-developed science goals to derive mission needs, design parameters, notional instruments, and candidate mission architectures for a future large-aperture, noncryogenic UVOIR space observatory. We describe the feasibility assessment of system dynamic stability that supports coronagraphy. The observatory is in a Sun–Earth L2 orbit, which provides a stable thermal environment and excellent field of regard. Reference designs include a 36-segment 9.2-m aperture telescope that stows within a 5-m diameter launch vehicle fairing. This paper presents results from the latest cycle of integrated modeling through January 2016. The latest findings support the feasibility of secondary mirror support struts with a thickness on the order of an inch. Thin struts were found not to have a significant negative effect on wavefront error stability. Struts with a width as small as 1 in. may benefit some coronagraph designs by allowing more optical throughput.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE) 2329-4124/2016/$25.00 © 2016 SPIE
Norman Rioux, Harley Andrew Thronson Jr., Lee D. Feinberg, H. Philip Stahl, David C. Redding, Andrew L. Jones, James A. Sturm, Christine M. Collins, Alice Kuochia C. Liu, and Matthew R. Bolcar "Future large-aperture UVOIR space observatory: reference designs," Journal of Astronomical Telescopes, Instruments, and Systems 2(4), 041214 (15 September 2016).
Published: 15 September 2016

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