Results 21 to 30 of about 1,721 (214)

The Cluster spacecraft's view of the motion of the high-latitude magnetopause [PDF]

Annales Geophysicae
Abstract. The boundary between the interplanetary magnetic field and the terrestrial magnetic field is the magnetopause. This magnetopause is influenced by dynamic changes in the solar wind, that is different solar wind conditions lead to a change in the shape and location of the magnetopause.
N. Grimmich, F. Plaschke, B. Grison, F. Prencipe, C. P. Escoubet, M. O. Archer, O. D. Constantinescu, O. D. Constantinescu, S. Haaland, S. Haaland, S. Haaland, R. Nakamura, D. G. Sibeck, F. Darrouzet, M. Hayosh, R. Maggiolo   +15 more
openaire   +9 more sources

Coordinated interhemispheric SuperDARN radar observations of the ionospheric response to flux transfer events observed by the Cluster spacecraft at the high-latitude magnetopause [PDF]

Annales Geophysicae, 2003
At 10:00 UT on 14 February 2001, the quartet of ESA Cluster spacecraft were approaching the Northern Hemisphere high-latitude magnetopause in the post-noon sector on an outbound trajectory. At this time, the interplanetary magnetic field incident
J. A. Wild, S. E. Milan, S. W. H. Cowley, M. W. Dunlop, M. W. Dunlop, C. J. Owen, J. M. Bosqued, M. G. G. T. Taylor, M. G. G. T. Taylor, J. A. Davies, M. Lester, N. Sato, A. S. Yukimatu, A. N. Fazakerley, A. Balogh, H. Rème, H. Rème   +16 more
doaj   +1 more source

Methods of Orbit Clustering of Serviced Spacecraft

System technologies, 2019
When planning orbital service operations, it is important to rationally divide a set of orbits serviced by a spacecraft into subsets (clusters) of orbits. This article proposes a technique for clustering the orbits of serviced spacecraft in the event of their servicing by a reusable service spacecraft with an electric rocket low thrust engine.
Yurii Mykhailovych Holdshtein, Anatolii Petrovych Alpatov   +1 more
openaire   +2 more sources

Magnetopause current as seen by Cluster [PDF]

Annales Geophysicae, 2005
The four-spacecraft, magnetic field measurements on Cluster can be combined to produce an accurate determination of the electric current in the magnetopause boundary during stable magnetopause crossings.
M. W. Dunlop, M. W. Dunlop, A. Balogh
doaj   +1 more source

Conjugate observations of quasi‐periodic emissions by Cluster and DEMETER spacecraft [PDF]

Journal of Geophysical Research: Space Physics, 2013
AbstractQuasi‐periodic (QP) emissions are electromagnetic emissions at frequencies of about 0.5–4 kHz that are characterized by a periodic time modulation of the wave intensity. Typical periods of this modulation are on the order of minutes. We present a case study of a large‐scale long‐lasting QP event observed simultaneously on board the DEMETER ...
Němec, F., Santolík, O., Parrot, Michel, Pickett, J. S., Hayosh, M., Cornilleau-Wehrlin, Nicole   +5 more
openaire   +4 more sources

Near-simultaneous magnetotail flux rope observations with Cluster and Double Star [PDF]

Annales Geophysicae, 2007
We present observations of three magnetic flux ropes in the tail of the Earth's magnetosphere on 7 August 2004 by the Cluster and Double Star TC-1 spacecraft.
A. P. Walsh, A. N. Fazakerley, R. J. Wilson, R. J. Wilson, I. V. Alexeev, P. D. Henderson, C. J. Owen, E. Lucek, C. Carr, I. Dandouras   +9 more
doaj   +1 more source

Four-spacecraft determination of magnetopause orientation, motion and thickness: comparison with results from single-spacecraft methods [PDF]

Annales Geophysicae, 2004
In this paper, we use Cluster data from one magnetopause event on 5 July 2001 to compare predictions from various methods for determination of the velocity, orientation, and thickness of the magnetopause current layer. We employ established as well as
S. E. Haaland, S. E. Haaland, B. U. Ö. Sonnerup, M. W. Dunlop, A. Balogh, E. Georgescu, H. Hasegawa, B. Klecker, G. Paschmann, G. Paschmann, P. Puhl-Quinn, H. Rème, H. Vaith, A. Vaivads   +13 more
doaj   +1 more source

Anisotropic Turbulent Spectra in the Terrestrial Magnetosheath as Seen by the Cluster Spacecraft [PDF]

Physical Review Letters, 2006
Here we report the first three-dimensional spatial spectrum of the low frequency magnetic turbulence obtained from the four Cluster spacecraft in the terrestrial magnetosheath close to the magnetopause. We show that the turbulence is compressible and dominated by mirror structures, its energy is injected at a large scale kp approximately 0.3 (l ...
F, Sahraoui, G, Belmont, L, Rezeau, N, Cornilleau-Wehrlin, J L, Pinçon, A, Balogh   +5 more
openaire   +2 more sources

An initial investigation of the long-term trends in the fluxgate magnetometer (FGM) calibration parameters on the four Cluster spacecraft [PDF]

Geoscientific Instrumentation, Methods and Data Systems, 2014
Over the course of more than 10 years in operation, the calibration parameters of the outboard fluxgate magnetometer (FGM) sensors on the four Cluster spacecraft are shown to be remarkably stable.
L. N. S. Alconcel, P. Fox, P. Brown, T. M. Oddy, E. L. Lucek, C. M. Carr   +5 more
doaj   +1 more source

Coordinated Cluster/Double Star observations of dayside reconnection signatures [PDF]

Annales Geophysicae, 2005
The recent launch of the equatorial spacecraft of the Double Star mission, TC-1, has provided an unprecedented opportunity to monitor the southern hemisphere dayside magnetopause boundary layer in conjunction with northern hemisphere observations by ...
M. W. Dunlop, M. W. Dunlop, M. G. G. T. Taylor, J. A. Davies, C. J. Owen, F. Pitout, A. N. Fazakerley, Z. Pu, H. Laakso, Y. V. Bogdanova, Q.-G. Zong, C. Shen, K. Nykyri, B. Lavraud, S. E. Milan, T. D. Phan, H. Rème, C. P. Escoubet, C. M. Carr, P. Cargill, M. Lockwood, B. Sonnerup   +21 more
doaj   +1 more source