The NOAA Goes-12 Solar X-Ray Imager (SXI) 2. Performance

Details The NOAA Goes-12 Solar X-Ray Imager (SXI) 2. Performance The NOAA Goes-12 Solar X-Ray Imager (SXI) 2. Performance

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005soph..226..283p&link_type=abstract

Solar Physics, Volume 226, Issue 2, pp.283-315

Physics

19

Scientific paper

The Solar X-ray Imager (SXI) was launched on 23 July 2001 on NOAA’s GOES-12 satellite and completed post-launch testing on 20 December 2001. It was brought into operations on 21 January 2003. This paper documents SXI performance and calibrations prior to an instrument degradation that occurred on 5 November 2003 and thus covers more than 420000 soft X-ray images of the Sun. This paper details component-level as well as full-system calibrations characterizing the spatial and spectral performance of the instrument, including the grazing-incidence mirror, filters, and the properties of the MCP-intensified CCD detector system. Routine image corrections are also described. These include background (dark current) subtraction, flat-fielding, off-band light-leak correction, and image pointing and timing considerations. In addition, a signal-to-noise analysis is presented. The information contained in this study is intended to enable researchers to conduct quantitative analysis of GOES-12 SXI images.

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