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Proceedings Paper

Hubble Space Telescope Particulate Optical Test
Author(s): Wayne Metheny; Tom Pope; William Rosenberg; Ron Sharbaugh
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Paper Abstract

The Particulate Optical Test (POT) was designed to record and measure particulate contaminants on the Hubble Space Telescope (HST) primary mirror. The objective of the test was to quantify the primary mirror particulate contamination prior to launch. The test consists of taking dark-field photographs of the primary mirror from in front of the telescope's aperture door. These photographs are subsequently digitized and analyzed to produce the areal coverage estimates. The estimated particulate areal obscuration is approximately 1.0% of the primary mirror surface in the usable region. This level of contamination is within the budget value of 2.5% and indicates that there was little increase in particulate contamination during the HST assembly process or the acoustic test period.

Paper Details

Date Published: 1 January 1987
PDF: 7 pages
Proc. SPIE 0777, Optical Systems Contamination: Effects, Measurement, Control, (1 January 1987); doi: 10.1117/12.967088
Show Author Affiliations
Wayne Metheny, Lockheed Palo Alto Research Laboratories (United States)
Tom Pope, Lockheed Palo Alto Research Laboratories (United States)
William Rosenberg, Lockheed Palo Alto Research Laboratories (United States)
Ron Sharbaugh, Lockheed Palo Alto Research Laboratories (United States)


Published in SPIE Proceedings Vol. 0777:
Optical Systems Contamination: Effects, Measurement, Control
A. Peter M. Glassford, Editor(s)

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