Effect of OTA Breathing on Hubble Space Telescope Images

H. Hasan and P. Y. Bely

The effect of short term focus changes on Hubble Space Telescope images after the refurbishment mission is examined. Based on simulations we conclude that image quality will not be degraded significantly for the cameras if focus variations are within +/- 5 microns in the blue and within +/- 2 microns in the UV. The tolerance for the spectrographs is wider, about +/- 10 microns.

Pages 157-162

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