Proposed studies of a 30 meter imaging interferometer concept

Details Proposed studies of a 30 meter imaging interferometer concept Proposed studies of a 30 meter imaging interferometer concept

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987esasp.273...85s&link_type=abstract

In ESA, ESA Workshop on Optical Interferometry in Space p 85-91 (SEE N88-10613 01-74)

Astronomy and Astrophysics

Astronomy

Laser Interferometry, Spaceborne Astronomy, Spacecraft Design, Graphite-Epoxy Composites, Space Shuttle Payloads, Trusses

Scientific paper

An imaging interferometer in space based on the use of 15 m sections of graphite-epoxy truss structure to form the basic mechanical support system is suggested. One simple design is a Y-shaped array of 3 coplanar arms, each 15 m long and 1.5 m in diameter, together with a perpendicualr mast of similar length. Roughly 15 observing telescopes of 0.5 m diameter would be used, with laser interferometers controlling the optical pathlengths. The total mass of the imaging interferometer is 3000 kg. With this design, the entire interferometer can be carried to orbit with a single STS launch and then deployed. The interferometer could be operated either in a fully illuminated Sun-synchronous orbit at 1400 km altitude or loosely attached to the Space Station.

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