Results 1 to 10 of about 1,963 (180)

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   +2 more sources

Artificial spacecraft in hybrid simulations of the quasi-parallel Earth's bow shock: analysis of time series versus spatial profiles and a separation strategy for Cluster [PDF]

Annales Geophysicae, 1994
We construct artificial "software" spacecraft consisting of magnetometers and 3D thermal and energetic ion detectors. Four such spacecraft are "flown" through a 1D simulation of a quasi-parallel shock. We analyze the resulting time
J. Giacalone, S. J. Schwartz, D. Burgess
doaj   +2 more sources

Active spacecraft potential control for Cluster – implementation and first results [PDF]

Annales Geophysicae, 2001
Electrostatic charging of a spacecraft modifies the distribution of electrons and ions before the particles enter the sensors mounted on the spacecraft body. The floating potential of magnetospheric satellites in sunlight very often reaches several
K. Torkar, W. Riedler, C. P. Escoubet, M. Fehringer, R. Schmidt, R. J. L. Grard, H. Arends, F. Rüdenauer, W. Steiger, B. T. Narheim, K. Svenes, R. Torbert, M. André, A. Fazakerley, R. Goldstein, R. C. Olsen, A. Pedersen, E. Whipple, H. Zhao   +18 more
doaj   +3 more sources

Research on dynamic path planning algorithm of spacecraft cluster based on cooperative particle swarm algorithm

Xibei Gongye Daxue Xuebao, 2021
In order to solve the problem of path planning for the spacecraft cluster to reach the dynamic target point under the premise of considering obstacle avoidance.
Zhang Zhen, Fang Qun, Song Jinfeng, Zhang Xiuwei, Zhu Zhanxia   +4 more
doaj   +1 more source

Cluster observations of a complex high-altitude cusp passage during highly variable IMF [PDF]

Annales Geophysicae, 2004
On 26 February 2001, the Cluster spacecraft were outbound over the Northern Hemisphere, at approximately 12:00 MLT, approaching the magnetosheath through the high-altitude (and exterior) cusp region.
M. G. G. T. Taylor, M. G. G. T. Taylor, M. W. Dunlop, B. Lavraud, B. Lavraud, A. Vontrat-Reberac, C. J. Owen, P. Décréau, P. Trávnícek, R. C. Elphic, R. H. W. Friedel, J. P. Dewhurst, Y. Wang, A. Fazakerley, A. Balogh, H. Rème, P. W. Daly   +16 more
doaj   +1 more source

Four point measurements of electrons using PEACE in the high-altitude cusp [PDF]

Annales Geophysicae, 2001
We present examples of electron measurements from the PEACE instruments on the Cluster spacecraft in the high-latitude, high-altitude region of the Earth’s magnetosphere.
M. G. G. T. Taylor, A. Fazakerley, I. C. Krauklis, C. J. Owen, P. Travnicek, P. Travnicek, M. Dunlop, P. Carter, A. J. Coates, S. Szita, G. Watson, R. J. Wilson   +11 more
doaj   +1 more source

Orbital Containment Control Algorithm and Complex Information Topology Design for Large-Scale Cluster of Spacecraft

IEEE Access, 2020
In order to investigate coordinated orbit control problem for large-scale cluster flight spacecraft, a distributed orbital containment control algorithm is proposed for spacecraft cluster flight system with multiple leaders.
Shijie Zhang, Fengzhi Guo, Anhui Zhang, Tingting Zhang   +3 more
doaj   +1 more source

The Double Star Plasma Electron and Current Experiment [PDF]

Annales Geophysicae, 2005
The Double Star Project is a collaboration between Chinese and European space agencies, in which two Chinese magnetospheric research spacecraft, carrying Chinese and European instruments, have been launched into equatorial (on 29 December 2003) and ...
A. N. Fazakerley, P. J. Carter, P. J. Carter, G. Watson, A. Spencer, Y. Q. Sun, J. Coker, P. Coker, D. O. Kataria, D. Fontaine, Z. X. Liu, L. Gilbert, L. He, L. He, A. D. Lahiff, B. Mihalčič, S. Szita, M. G. G. T. Taylor, M. G. G. T. Taylor, R. J. Wilson, M. Dedieu, S. J. Schwartz   +21 more
doaj   +1 more source

The azimuthal extent of three flux transfer events [PDF]

Annales Geophysicae, 2008
In early 2006, the Cluster spacecraft crossed the dayside magnetopause twice each orbit with the spacecraft at their largest separation of the entire mission (~10 000 km).
R. C. Fear, S. E. Milan, A. N. Fazakerley, E. A. Lucek, S. W. H. Cowley, I. Dandouras   +5 more
doaj   +1 more source

Cluster PEACE observations of electrons of spacecraft origin [PDF]

Annales Geophysicae, 2001
The two PEACE (Plasma Electron And Current Experiment) sensors on board each Cluster spacecraft sample the electron velocity distribution across the full 4<pi> solid angle and the energy range 0.7 eV to 26 keV with a time resolution of 4 s ...
S. Szita, A. N. Fazakerley, P. J. Carter, A. M. James, P. Trávnícek, P. Trávnícek, G. Watson, M. André, A. Eriksson, K. Torkar   +9 more
doaj   +1 more source