Hubble Space Telescope Particulate Optical Test

Wayne Metheny; Tom Pope; William Rosenberg; Ron Sharbaugh

doi:10.1117/12.967088

1 January 1987 Hubble Space Telescope Particulate Optical Test

Wayne Metheny, Tom Pope, William Rosenberg, Ron Sharbaugh

Proceedings Volume 0777, Optical Systems Contamination: Effects, Measurement, Control; (1987) https://doi.org/10.1117/12.967088
Event: 1987 Technical Symposium Southeast on Optics, Electro-Optics, and Sensors, 1987, Orlando, FL, United States

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.

Citation Download Citation

Wayne Metheny, Tom Pope, William Rosenberg, and Ron Sharbaugh "Hubble Space Telescope Particulate Optical Test", Proc. SPIE 0777, Optical Systems Contamination: Effects, Measurement, Control, (1 January 1987); https://doi.org/10.1117/12.967088

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