HR: 0800h
AN: SH51A-0265    [Abstracts]
TI: NOZOMI/ACE Multispacecraft Observations of Solar Energetic Particles
AU: * Miyasaka, H
EM: miyasaka@srl.caltech.edu
AF: Caltech, MC 220-47, Pasadena, CA 91125 United States
AU: Mewaldt, R A
AF: Caltech, MC 220-47, Pasadena, CA 91125 United States
AU: Mason, G M
AF: Univ. of Maryland, Department of Physics, College Park, MD 20742 United States
AU: Haggerty, D K
AF: JohnsHopkins Univ./Applied Physics Lab., 11100 Johns Hopkins Rd., Laurel, MD 20723 United States
AU: Nagata, K
AF: Faculty of Engineering, Tamagawa Univ., Machida, Tokyo, 194-8610 Japan
AU: Kikuchi, J
AF: Advanced Research Institute for Science and Engineering, Waseda Univ., Shinjuku-ku, Tokyo, 169-8555 Japan
AU: Doke, T
AF: Advanced Research Institute for Science and Engineering, Waseda Univ., Shinjuku-ku, Tokyo, 169-8555 Japan
AU: Hasebe, N
AF: Advanced Research Institute for Science and Engineering, Waseda Univ., Shinjuku-ku, Tokyo, 169-8555 Japan
AU: Maezawa, K
AF: ISAS, Sagamihara, Kanagawa, 229-8510 Japan
AU: Takashima, T
AF: ISAS, Sagamihara, Kanagawa, 229-8510 Japan
AU: Ihara, A
AF: ISAS, Sagamihara, Kanagawa, 229-8510 Japan
AB: We report multispacecraft measurements of solar energetic particle (SEP) events using NOZOMI and ACE. During July 1998 to April 2002 while NOZOMI was cruising toward Mars, both NOZOMI and ACE observed many SEP events associated with coronal mass ejections (CMEs) and interplanetary shocks originating from different longitudes. The difference in NOZOMI and ACE longitudes varied from 0 to 180 degrees during this period. These observations can reveal the longitudinal extent of CME-driven shocks and the accelerated particle populations. We use proton and electron data extending from $\sim$40keV to $\sim$1MeV measured with the EIS instruments on NOZOMI and the ULEIS and EPAM instruments on ACE. Comparisons of the time histories from NOZOMI and ACE as a function of the separation longitude, radius, and flare-locations will be presented.
DE: 7513 Coronal mass ejections
DE: 7514 Energetic particles (2114)
DE: 2104 Cosmic rays
DE: 2118 Energetic particles, solar
DE: 2139 Interplanetary shocks
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2004 AGU Fall Meeting