System-wide design issues for the stellar interferometer technology experiment (SITE)

Details System-wide design issues for the stellar interferometer technology experiment (SITE) System-wide design issues for the stellar interferometer technology experiment (SITE)

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995spie.2477..267m&link_type=abstract

Proc. SPIE Vol. 2477, p. 267-275, Spaceborne Interferometry II, Robert D. Reasenberg; Ed.

Astronomy and Astrophysics

Astronomy

Scientific paper

The Stellar Interferometer Technology Experiment (SITE) is a near-term precursor mission for spaceborne optical interferometry. Proposed by the MIT Space Engineering Research Center and NASA's Jet Propulsion Laboratory, SITE is a two-aperture stellar interferometer located in the payload bay of the Space Shuttle. It has a baseline of four meters, operates with a detection bandwidth of 300 nanometers in the visible spectrum, and consists of three optical benches kinematically mounted inside a precision truss structure. The objective of SITE is to demonstrate system-level functionality of a space-based stellar interferometer through the use of enabling and enhancing Controlled Structures Technologies such as vibration isolation and suppression. Moreover, SITE will validate, in the space environment, technologies such as optical delay lines, laser metrology systems, fringe detectors, active fringe trackers, and high- bandwidth pointing control systems which are critical for realizing future space-based astrometric and imaging interferometers.

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