AAS 200th meeting, Albuquerque, NM, June 2002
Session 55. Solar Data Analysis and Calibration
Display, Wednesday, June 5, 2002, 10:00am-7:00pm, SW Exhibit Hall

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[55.03] Calibration of the LASCO C3 Coronal Images

J. Morrill, D. Biesecker, A. Esfandiari, C. Korendyke, D. Moses, N. Rich, A. Vourlidas, D. Wang, R. A. Howard (E. O. Hulburt Center for Space Research, Naval Research Laboratory), P. Lamy, A. Llebaria, A. Thernisien (Laboratoire d'Astronomie Spatiale, Marseille)

The LASCO C3 coronagraph has provided coronal observations since May, 1996. Preliminary calibrations have been available during most of this time period. However, some aspects of the calibration have required re-evaluation and we are just completing a complete review of the calibration procedure for these images. In this presentation we will discuss the steps required to correct LASCO C3 images. This includes corrections required by both optical and electrical characteristics of the instrument as well as timimg and spacecraft pointing driven correctons.

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Bulletin of the American Astronomical Society, 34
© 2002. The American Astronomical Soceity.