HR: 0830h
AN: SH21B-0152    [PDF]
TI: Orientations of Correlated Wind and ACE Features
AU: * Lazarus, A J
EM: ajl@space.mit.edu
AF: Center for Space Research, M.I.T., 77 Massachusetts Ave, Cambridge, MA 02139-4301 United States
AU: Ashmall, J
EM: ja@space.mit.edu
AF: Center for Space Research, M.I.T., 77 Massachusetts Ave, Cambridge, MA 02139-4301 United States
AU: Kasper, J C
EM: jck@space.mit.edu
AF: Center for Space Research, M.I.T., 77 Massachusetts Ave, Cambridge, MA 02139-4301 United States
AU: Skoug, R M
EM: rskoug@lanl.gov
AF: Los Alamos National Laboratory, MS D466, Los Alamos, NM 87545 United States
AU: Steinberg, J T
EM: jsteinberg@lanl.gov
AF: Los Alamos National Laboratory, MS D466, Los Alamos, NM 87545 United States
AU: Ogilvie, K W
EM: keith.w.ogilvie@gsfc.nasa.gov
AF: Goddard Space Flight Center, Code 696.0, Greenbelt, MD 20771 United States
AU: Szabo, A
EM: Adam.Szabo@gsfc.nasa.gov
AF: Goddard Space Flight Center, Code 696.0, Greenbelt, MD 20771 United States
AU: Smith, C W
EM: charles.smith@unh.edu
AF: Univ. of New Hampshire Institute for the Study of Earth, Oceans and Space, 39 College Road, Durham, NH 03824-3525 United States
AU: Hu, Q
EM: HUQIANG@BARTOL.UDEL.EDU
AF: Bartol Research Institute, University of Delaware, 217 Sharp Lab, Newark, DE 19716 United States
AB: In August 2000 Wind entered a unique orbit with excursions in $\mathrm{Y_{GSE}}$ of $\pm 300 \mathrm{R_{E}}$. ACE, in a standard L1 halo orbit, frequently observes solar wind features that correlate well with those seen by Wind. By comparing maximum-correlation lag times of features seen by ACE and Wind in 2000-2001, we show the front normals of these features are bounded by the radial direction and the normal to the Parker spiral. Interplanetary shocks are frequent and prominent features in the solar wind during this period, consequently we separate shock normals from front normals of other well-correlated features. We find that, on average, shocks travel in the radial direction in agreement with shock normal analysis using Rankine-Hugoniot relations. In contrast, normals of the other well-correlated features are distributed between the radial direction and the ortho-Parker direction. Wind observations are supported, in part, by NASA/Goddard Space Flight Center
DE: 2102 Corotating streams
DE: 2109 Discontinuities
DE: 2134 Interplanetary magnetic fields
DE: 2139 Interplanetary shocks
DE: 2164 Solar wind plasma
SC: SPA - Solar and Heliospheric Physics [SH]
MN: 2003 Fall Meeting