Analysis of the comparative responses of SMEI and LASCO

Andrew Buffington; Jeff S. Morrill; P. Paul Hick; Russell A. Howard; Bernard V. Jackson; David F. Webb

doi:10.1117/12.734658

20 September 2007 Analysis of the comparative responses of SMEI and LASCO

Andrew Buffington, Jeff S. Morrill, P. Paul Hick, Russell A. Howard, Bernard V. Jackson, David F. Webb

Proceedings Volume 6689, Solar Physics and Space Weather Instrumentation II; 66890B (2007) https://doi.org/10.1117/12.734658
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

Surface-brightness responses of the SOHO-LASCO C3 coronagraph and of the Solar Mass Ejection Imager (SMEI) are compared, using measurements of a selection of bright stars that have been observed in both instruments. Seventeen stars are selected that are brighter than 4.5 magnitudes, are not known variables, and do not have a neighboring bright star. Comparing observations of these determines a scaling relationship between surface-brightness measurements from one instrument to those from the other. We discuss units of surface brightness for the two instruments, and estimate a residual uncertainty for the present scaling relationship.

Citation Download Citation

Andrew Buffington, Jeff S. Morrill, P. Paul Hick, Russell A. Howard, Bernard V. Jackson, and David F. Webb "Analysis of the comparative responses of SMEI and LASCO", Proc. SPIE 6689, Solar Physics and Space Weather Instrumentation II, 66890B (20 September 2007); https://doi.org/10.1117/12.734658

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