HR: 11:20h
AN: SH22A-05    [Abstracts]
TI: The Geometric Localization of STEREO CMEs
AU: * Pizzo, V J
EM: vic.pizzo@noaa.gov
AF: NOAA/SEC, 325 Broadway , Boulder, CO 80305 United States
AU: biesecker, d
EM: doug.biesecker@noaa.gov
AF: NOAA/SEC, 325 Broadway , Boulder, CO 80305 United States
AB: We describe a straightforward methodology for determining the location and other gross properties of CMEs within the coronagraph field of view in the upcoming STEREO mission observations. We use geometric triangulation upon a series of lines-of-sight taken from two spacecraft views that are locally tangent to the apparent edges of a CME. From the intersections of these lines-of-sight, we construct a set of stacked quadrilaterals that fully bound the structure and convey something of its location, shape, and size; a time sequence of such determinations can be used to determine the velocity. The technique is relatively robust and promises a substantial improvement in our capability to locate and characterize CMEs for research as well as forecasting purposes.
DE: 7513 Coronal mass ejections
DE: 7594 Instruments and techniques
DE: 2111 Ejecta, driver gases, and magnetic clouds
DE: 2169 Sources of the solar wind
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2004 AGU Fall Meeting