HR: 17:20h
AN: SH34A-05    [Abstracts]
TI: The High Energy Telescopes for the STEREO Mission
AU: * von Rosenvinge, T
EM: tycho@milkyway.gsfc.nasa.gov
AF: NASA/Goddard Space Flight Center, Code 661, Greenbelt, MD 20771, United States
AU: Cummings, A
EM: ace@srl.caltech.edu
AF: California Institute of Technology, 220-47 Downs Laboratory, Pasadena, CA 91125, United States
AU: Cohen, C
EM: cohen@srl.caltech.edu
AF: California Institute of Technology, 220-47 Downs Laboratory, Pasadena, CA 91125, United States
AU: Leske, R
EM: ral@srl.caltech.edu
AF: California Institute of Technology, 220-47 Downs Laboratory, Pasadena, CA 91125, United States
AU: Mewaldt, R
EM: rmewaldt@srl.caltech.edu
AF: California Institute of Technology, 220-47 Downs Laboratory, Pasadena, CA 91125, United States
AU: Stone, E
EM: ecs@srl.caltech.edu
AF: California Institute of Technology, 220-47 Downs Laboratory, Pasadena, CA 91125, United States
AU: Wiedenbeck, M
EM: Mark.E.Wiedenbeck@jpl.nasa.gov
AF: Jet Propulsion Laboratory, MS 169-327, Pasadena, CA 91109, United States
AB: The High Energy Telescopes (HETs) described in this paper are part of the IMPACT investigation for the STEREO mission (Principal Investigator: Janet Luhmann, University of California at Berkeley). The two STEREO spacecraft were launched from Cape Canaveral, FL on October 25, 2006. High energy electrons (~ 0.7 -6 MeV) and nuclei from hydrogen to iron (~ 13 - 200 MeV/nucleon) are detected by the HETs, one on each spacecraft. The HET design, the associated electronics, and the on-board software are described in some detail. Observations from one pass through the Earth's magnetosphere and from four X-class solar events in December, 2006 are presented to illustrate the capabilities of the HETs. The event of December 13th was a Ground Level Event. We will compare the elemental composition of this event with that of a previous Ground Level Event on January 20, 2005. This work was supported by NASA (at Caltech and JPL under contract NAS5-00133).
DE: 7514 Energetic particles (2114)
DE: 7519 Flares
DE: 7594 Instruments and techniques
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Joint Assembly