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Herschel Space Telescope: Impact of new material strain data on optical test and model correlation

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3 Author(s)
Catanzaro, B. ; CFE Services, San Diego, CA, USA ; Doyle, D. ; Cohen, E.J.

Successful launch and imagery from the Herschel Space Telescope has demonstrated a nominally in focus telescope. There still remains a discrepancy between the prediction and measurement of the telescope back focal length prior to launch. New material strain data has been applied to the structural/optical model of the telescope. The new data significantly closed the gap between the previous optical test measurement and prediction. However, a discrepancy still exists. Model results and techniques will be presented and discussed.

Published in:

Aerospace Conference, 2010 IEEE

Date of Conference:

6-13 March 2010