HR: 0800h
AN: SM21B-0365    [Abstracts]
TI: A Conjunction FTE Event of Cluster and TC1 on Jan 04,2005
AU: * Wang, J
EM: wangjue@pku.edu.cn
AF: School of Earth and Space Sciences, Peking University, No. 5, Yiheyuan Street, Beijing, 100871 China
AU: Pu, Z
EM: zypu@pku.edu.cn
AF: School of Earth and Space Sciences, Peking University, No. 5, Yiheyuan Street, Beijing, 100871 China
AU: Dunlop, M
SM21B-0365 AF: Space Sciences Division, RAL, Oxford, Chilton, Didcot, Oxon, OX11 0QX United Kingdom
AU: Zhang, X
SM21B-0365 AF: School of Earth and Space Sciences, Peking University, No. 5, Yiheyuan Street, Beijing, 100871 China
AU: Zhou, X
SM21B-0365 AF: School of Earth and Space Sciences, Peking University, No. 5, Yiheyuan Street, Beijing, 100871 China
AU: Fu, X
SM21B-0365 AF: School of Earth and Space Sciences, Peking University, No. 5, Yiheyuan Street, Beijing, 100871 China
AU: Xiao, C
SM21B-0365 AF: National Astronomical Observatories, CAS, No. 20, Datun Street, Beijing, 100012 China
AU: Liu, Z
SM21B-0365 AF: CSSAR, CAS, No. 1, Nanertiao, Zhongguancun, Beijing, 100080 China
AU: Zong, Q
SM21B-0365 AF: CSP, Boston University, 725 Commonwealth Avenue, Boston, Mas 02215 United States
AU: Carr, C
SM21B-0365 AF: The Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2BZ United Kingdom
AU: Reme, H
SM21B-0365 AF: CESR, 9 Avenue du Colonel Roche, Toulouse, F-31028 France
AU: Pitout, F
SM21B-0365 AF: MPI for Extraterrestrische Physik, Giessenbachstrasse, Giessenbachstrasse, Garching, D-85748 Germany
AU: Fazakerley, A
SM21B-0365 AF: MSSL, Holmbury St. Mary, Dorking, Surrey, RH5 6NT United Kingdom
AB: 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.
DE: 2700 MAGNETOSPHERIC PHYSICS (6939)
DE: 2723 Magnetic reconnection (7526, 7835)
DE: 2724 Magnetopause and boundary layers
DE: 2740 Magnetospheric configuration and dynamics
DE: 7800 SPACE PLASMA PHYSICS
SC: SPA-Magnetospheric Physics [SM]
MN: Fall Meeting 2005