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An evolvable space telescope for future astronomical missions 2015 update

Polidan, Ronald S. and Breckinridge, James B. and Lillie, Charles F. and MacEwen, Howard A. and Flannery, Martin R. and Dailey, Dean R. and Baldauf, Brian and Makowski, David and Rafanelli, Gerard L. (2015) An evolvable space telescope for future astronomical missions 2015 update. In: UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VII. Proceedings of SPIE. No.9602. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 960207. ISBN 9781628417685.

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In 2014 we presented a concept for an Evolvable Space Telescope (EST) that was assembled on orbit in 3 stages, growing from a 4x12 meter telescope in Stage 1, to a 12-meter filled aperture in Stage 2, and then to a 20-meter filled aperture in Stage 3. Stage 1 is launched as a fully functional telescope and begins gathering science data immediately after checkout on orbit. This observatory is then periodically augmented in space with additional mirror segments, structures, and newer instruments to evolve the telescope over the years to a 20-meter space telescope. In this 2015 update of EST we focus upon three items: 1) a restructured Stage 1 EST with three mirror segments forming an off-axis telescope (half a 12-meter filled aperture); 2) more details on the value and architecture of the prime focus instrument accommodation; and 3) a more in depth discussion of the essential in-space infrastructure, early ground testing and a concept for an International Space Station testbed called MoDEST. In addition to the EST discussions we introduce a different alternative telescope architecture: a Rotating Synthetic Aperture (RSA). This is a rectangular primary mirror that can be rotated to fill the UV-plane. The original concept was developed by Raytheon Space and Airborne Systems for non-astronomical applications. In collaboration with Raytheon we have begun to explore the RSA approach as an astronomical space telescope and have initiated studies of science and cost performance.

Item Type:Book Section
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Breckinridge, James B.0000-0002-9488-098X
Additional Information:© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE). The authors would like to acknowledge strong support and internal funding from Northrop Grumman Aerospace Systems and very helpful comments, suggestions, and criticisms from a variety of people, including Jonathan Arenberg, Suzanne Casement, Alberto Conti, Michael Triller, Amber Bauermeister, Mark Folkman, Keith Leavitt, Mitchell Haeri, Neil Malone, Susan B. Spencer, Douglas W. Wolfe, Marc Postman, Ken Sembach, Wes Traub, and Harley Thronson.
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Northrop Grumman CorporationUNSPECIFIED
Subject Keywords:Space telescopes, alternate architectures, segmented telescopes, in-space assembly and servicing, synthetic apertures
Series Name:Proceedings of SPIE
Issue or Number:9602
Record Number:CaltechAUTHORS:20180718-155617229
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Official Citation:Ronald S. Polidan, James B. Breckinridge, Charles F. Lillie, Howard A. MacEwen, Martin R. Flannery, Dean R. Dailey, Brian Baldauf, David Makowski, Gerald L. Rafanelli, "An evolvable space telescope for future astronomical missions 2015 update", Proc. SPIE 9602, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VII, 960207 (22 September 2015); doi: 10.1117/12.2189105;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87980
Deposited By: George Porter
Deposited On:18 Jul 2018 23:18
Last Modified:16 Nov 2021 00:22

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