5 March 2003 SIRTF-CTA optical performance test results
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Abstract
This paper describes the principal optical results of the "End to End" test conducted on the SIRTF Cryogenic Telescope Assembly. Test system focus was located using images from the shortest wavelength science instrument, IRAC, much as it will be on-orbit. Deep out-of-focus images were used to determine the system wavefront by Phase Retrieval methods with heritage to Hubble Space Telescope work. This work has been used to update the SIRTF optical models and aid in predicting the on-orbit performance of the observatory. Images made with other assemblies able to observe in the test (IRS, PCRS) were used to verify their function and co-focus to the IRAC established position. Image jitter was analyzed warm and cold, with visible images captured by the PCRS instrument and cold, with images captured by the IRAC instrument.
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John P. Schwenker, Bernhard Rainer Brandl, William F. Hoffmann, Joseph L. Hora, Amanda Kathryn Mainzer, John Eric Mentzell, Jeff Van Cleve, "SIRTF-CTA optical performance test results", Proc. SPIE 4850, IR Space Telescopes and Instruments, (5 March 2003); doi: 10.1117/12.461925; https://doi.org/10.1117/12.461925
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