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Proceedings Paper

Design of a precise and stable composite telescope structure for the ultraviolet coronagraph spectrometer
Author(s): Mark C. Kilpatrick; Joseph D. Girard; Kelly J. Dodson
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Paper Abstract

The Ultraviolet Coronagraph Spectrometer is a state of the art instrument which will be flown aboard the ESA SOHO spacecraft in 1995. A major objective of the SOHO is to investigate the solar corona and the solar wind by measuring parameters of the plasma, both in the source and acceleration regions, and in interplanetary space. The UVCS will provide ultraviolet spectroscopic diagnostics of temperature, density, and outflow velocity for coronal ions located between the base of the solar corona and 10 solar radii. The requirements placed on the UVCS telescope structure by the science and the spacecraft are challenging. Obtaining this scientific data requires that the telescope maintain pointing stability within a few arc-seconds in a transient thermal environment and an imaging stability within a few microns. Strict mass allowances permit only 22 kg for the 2.5 meter long telescope structure out of a total instrument allotment of 124 kg. The instrument is required to have a high minimum natural frequency of 70 Hertz and withstand launch inertia loads in excess of 18-G's while kinematically supported.

Paper Details

Date Published: 16 September 1992
PDF: 20 pages
Proc. SPIE 1690, Design of Optical Instruments, (16 September 1992); doi: 10.1117/12.137995
Show Author Affiliations
Mark C. Kilpatrick, Ball Aerospace Systems Group (United States)
Joseph D. Girard, Ball Aerospace Systems Group (United States)
Kelly J. Dodson, Composite Optics, Inc. (United States)

Published in SPIE Proceedings Vol. 1690:
Design of Optical Instruments
David M. Aikens; Victor L. Genberg; Gary C. Krumweide; Michael J. Thomas, Editor(s)

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