Abstracts submitted by Paulett Liewer
Application of Stereoscopy to STEREO/SECCHI Data
P. C. Liewer, S. Braswell, E. M. DeJong, J. R. Hall, W. Thompson and the SECCHI Team
JPL, GSFC, NRL
The spacecraft of NASA's Solar TErrestrial RElations Observatory (STEREO) Mission have reached sufficient angular separation for stereoscopic analysis of simultaneous images from the two spacecraft. In this talk, we will report results of 3D reconstruction of coronal loops and prominences using "tiepointing" and stereoscopy (aka triangulation). To validate the stereoscopy method, results will be compared for triangulation of coronal loops using different software algorithms and by comparison with the same loops seen at the limb. From the early May to late August, the separation of the two spacecraft increases from 6 to nearly 30 degrees, significantly decreasing the expected errors in the 3D reconstruction calculation. We will compare the observed scaling of the reconstruction errors with the theoretical predictions. We will use the technique on both "steady" loops and pre-eruptive-event loops. |
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