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Optical Engineering

Calibration and alignment of metrology system for the Nuclear Spectroscopic Telescope Array mission
Author(s): Carl C. Liebe; Yunjin Kim; Patrick L. Meras; William W. Craig; Michael P. Raffanti; Christopher Scholz; Ryan McLean
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Paper Abstract

A metrology system to measure the on-orbit movement of a ten meter mast has been built for the Nuclear Spectroscopic Telescope Array (NuSTAR) x-ray observatory. In this paper, the metrology system is described, and the performance is measured. The laser beam stability is discussed in detail. Pre-launch alignment and calibration are also described. The invisible infrared laser beams must be aligned to their corresponding detectors without deploying the telescope in Earth's gravity. Finally, a possible method for in-flight calibration of the metrology system is described.

Paper Details

Date Published: 16 April 2012
PDF: 10 pages
Opt. Eng. 51(4) 043605 doi: 10.1117/1.OE.51.4.043605
Published in: Optical Engineering Volume 51, Issue 4
Show Author Affiliations
Carl C. Liebe, Jet Propulsion Lab. (United States)
Yunjin Kim, Jet Propulsion Lab. (United States)
Patrick L. Meras, Jet Propulsion Lab. (United States)
William W. Craig, Univ. of California, Berkeley (United States)
Michael P. Raffanti, Univ. of California, Berkeley (United States)
Christopher Scholz, Univ. of California, Berkeley (United States)
Ryan McLean, California Institute of Technology (United States)

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