Physics – Plasma Physics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsm21b0365w&link_type=abstract
American Geophysical Union, Fall Meeting 2005, abstract #SM21B-0365
Physics
Plasma Physics
2700 Magnetospheric Physics (6939), 2723 Magnetic Reconnection (7526, 7835), 2724 Magnetopause And Boundary Layers, 2740 Magnetospheric Configuration And Dynamics, 7800 Space Plasma Physics
Scientific paper
On Jan 04,2004 both Double Star TC-1 and Cluster constellation were traveling outbound in the northern-dawn sector. At about 07:08 UT all five satellites were traversing through the magnetopause and then stayed in the magnetosheath. At about 0710 UT in the GSE coordinate system CS4 was located at X=3.91Re, Y=12.03Re and Z=5.01Re, while the TC-1 GSE position was (4.33Re, 12.50Re, 1.93Re). The separations between the two spacecraft were Δ X=0.42Re, Δ Y=0.47Re, and Δ Z=3.08Re. At 0713UT Cluster four satellites encountered with a flux rope. About 108s later, TC-1 observed a flux rope also. The signatures of measured plasma density and temperature imply that Cluster and TC-1 were both meeting a magnetosheath FTE. The Hoffmann-Teller (HT) analysis and Reconstruction of these two ropes illustrate that Cluster and TC-1 encountered with a same flux rope at two different positions of the rope. We have used several approaches to infer the flux axis orientation. It is seen that the axis direction at the Cluster position is closer to that of the ambient magnetic field than TC-1. We have also tried to construct the large scale configuration of the flux rope. The length from Cluster to TC-1 along the curved flux rope is found to be about 9.25Re. The 3-D distribution of thermal ions, low-energy and energetic electron data are also used in the study of this Cluster-TC-1 conjunction event.
Carr Chris
Dunlop Malcolm
Fazakerley Andrew
Fu Xiangyun
Liu Zhiyi
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