Data inversion for the Multi-Order Solar Extreme-Ultraviolet Spectrograph

Details Data inversion for the Multi-Order Solar Extreme-Ultraviolet Spectrograph Data inversion for the Multi-Order Solar Extreme-Ultraviolet Spectrograph

Nov 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.5157..124f&link_type=abstract

Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research V. Edited by Larar, Allen M.; Shaw, Jos

Computer Science

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Scientific paper

The Multi-Order Solar Extreme Ultraviolet Spectrograph (MOSES) is a high resolution, slitless imaging spectrometer that will observe the Sun in extreme ultraviolet near 304A. MOSES will fly on a NASA sounding rocket launch in spring 2004. The instrument records spatial and spectral information into images at three spectral orders. To recover the source spectrum, an ill-posed inversion must be performed on these data. We will explore two of the techniques by which this may be accomplished: Fourier backprojection and Pixons, constrained by the spatially integrated spectrum of the Sun. Both methods produce good results, including doppler shifts measured to 1/3-pixel accuracy. The Pixon code better reproduces the line widths.

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