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Proceedings Paper

Building an interferometer at the edge of space: pointing and phase control system for BETTII
Author(s): Maxime J. Rizzo; S. A. Rinehart; J. B. Alcorn; R. B. Barclay; R. K Barry; D. J. Benford; A. Dhabal; D. J. Fixsen; A. S. Gore; S. Johnson-Shapoval; D. T. Leisawitz; S. F. Maher; L. G. Mundy; A. Papageorgiou; E. Pascale; A. Rau; R. F. Silverberg; P. Taraschi; T. J. Veach; S. Weinreich
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Paper Abstract

We propose an architecture for the control system of BETTII,1 a far-infrared, balloon-borne interferometer with a baseline of 8 meters. This system involves multiple synchronized control loops for real-time pointing control and precise attitude knowledge. This will enable accurate phase estimation and control, a necessity for successful interferometry. We present the overall control strategy and describe our flight hardware in detail. We also show our current test setup and the first results of our coarse pointing loop.

Paper Details

Date Published: 28 August 2014
PDF: 12 pages
Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 91433H (28 August 2014); doi: 10.1117/12.2055016
Show Author Affiliations
Maxime J. Rizzo, Univ. of Maryland, College Park (United States)
NASA Goddard Space Flight Ctr. (United States)
S. A. Rinehart, NASA Goddard Space Flight Ctr. (United States)
J. B. Alcorn, The Univ. of Alabama in Huntsville (United States)
R. B. Barclay, NASA Goddard Space Flight Ctr. (United States)
R. K Barry, NASA Goddard Space Flight Ctr. (United States)
D. J. Benford, NASA Goddard Space Flight Ctr. (United States)
A. Dhabal, Univ. of Maryland, College Park (United States)
NASA Goddard Space Flight Ctr. (United States)
D. J. Fixsen, Univ. of Maryland, College Park (United States)
A. S. Gore, Univ. of Illinois at Urbana-Champaign (United States)
S. Johnson-Shapoval, Univ. of Maryland, College Park (United States)
D. T. Leisawitz, NASA Goddard Space Flight Ctr. (United States)
S. F. Maher, NASA Goddard Space Flight Ctr. (United States)
L. G. Mundy, Univ. of Maryland, College Park (United States)
A. Papageorgiou, Cardiff Univ. (United Kingdom)
E. Pascale, Cardiff Univ. (United Kingdom)
A. Rau, Naperville North High School (United States)
R. F. Silverberg, NASA Goddard Space Flight Ctr. (United States)
P. Taraschi, Alfred Univ. (United States)
T. J. Veach, NASA Goddard Space Flight Ctr. (United States)
S. Weinreich, Brown Univ. (United States)


Published in SPIE Proceedings Vol. 9143:
Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave
Jacobus M. Oschmann; Mark Clampin; Giovanni G. Fazio; Howard A. MacEwen, Editor(s)

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