Fourier transform spectroscopy with a deformable mirror

Richard L. Kendrick; Eric H. Smith

doi:10.1117/12.549182

12 October 2004 Fourier transform spectroscopy with a deformable mirror

Richard L. Kendrick, Eric H. Smith

Proceedings Volume 5487, Optical, Infrared, and Millimeter Space Telescopes; (2004) https://doi.org/10.1117/12.549182
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

During the in-orbit checkout phase of the Infrared Spectrograph¹ on board The Spitzer Telescope,² it was found that the noise of the spectrograph's arrays was correlated with the number of cosmic ray hits. Our analysis reveals that the cause of that effect is most likely due to the algorithms used to correct cosmic ray hits on dark pixels. We also found that the noise characteristics of the pixels that have an illumination that is lower than 1/10 of the full well is artificially raised by the cosmic ray correction by a factor of about 10% if 1% of the pixels are affected by cosmic rays.

Citation Download Citation

Richard L. Kendrick and Eric H. Smith "Fourier transform spectroscopy with a deformable mirror", Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, (12 October 2004); https://doi.org/10.1117/12.549182

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