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Proceedings Paper

An integrated optimal estimation approach to Spitzer Space Telescope focal plane survey
Author(s): David S. Bayard; Bryan H. Kang; Paul B. Brugarolas; Dhemetrios Boussalis
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Paper Abstract

This paper discusses an accurate and efficient method for focal plane survey that was used for the Spitzer Space Telescope. The approach is based on using a high-order 37-state Instrument Pointing Frame (IPF) Kalman filter that combines both engineering parameters and science parameters into a single filter formulation. In this approach, engineering parameters such as pointing alignments, thermomechanical drift and gyro drifts are estimated along with science parameters such as plate scales and optical distortions. This integrated approach has many advantages compared to estimating the engineering and science parameters separately. The resulting focal plane survey approach is applicable to a diverse range of science instruments such as imaging cameras, spectroscopy slits, and scanning-type arrays alike. The paper will summarize results from applying the IPF Kalman filter to calibrating the Spitzer Space Telescope focal plane, containing the MIPS, IRAC, and the IRS science instrument arrays.

Paper Details

Date Published: 12 October 2004
PDF: 12 pages
Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, (12 October 2004); doi: 10.1117/12.552394
Show Author Affiliations
David S. Bayard, Jet Propulsion Lab. (United States)
Bryan H. Kang, Jet Propulsion Lab. (United States)
Paul B. Brugarolas, Jet Propulsion Lab. (United States)
Dhemetrios Boussalis, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 5487:
Optical, Infrared, and Millimeter Space Telescopes
John C. Mather, Editor(s)

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