Results 11 to 20 of about 31,489 (272)

Spacecraft potential control aboard Equator-S as a test for Cluster-II [PDF]

Annales Geophysicae, 1999
The payload of Equator-S was complemented by the potential control device (PCD) to stabilise the electric potential of the spacecraft with respect to the ambient plasma. Low potentials are essential for accurate measurements of the thermal plasma. The
K. Torkar, K. Torkar, W. Riedler, M. Fehringer, F. Rüdenauer, C. P. Escoubet, H. Arends, B. T. Narheim, K. Svenes, M. P. McCarthy, G. K. Parks, R. P. Lin, H. Rème   +12 more
doaj   +3 more sources

New Technologies for Miniaturized Spacecraft and Multi-Point Cluster Missions

, 1999
ABSTRACT The Johns Hopkins University Applied Physics Laboratory is currently preparing for its next generation of low Earth orbiting and deep space missions. Auroral Multi-Scale (AMS) is one of those missions. The mission uses four miniature (36 kg each) spacecraft to perform high resolution multi-point electric and magnetic field measurements of ...
E. Reynolds, Mary Katherine Flaherty
openaire   +2 more sources

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

Whistlers observed by the Cluster spacecraft outside the plasmasphere [PDF]

Journal of Geophysical Research: Space Physics, 2005
Lightning generated whistlers are ubiquitous within the plasmasphere at both high and low altitudes, and these waves propagate efficiently in both ducted and nonducted modes. On the other hand, in the magnetospheric region outside the plasmasphere, lightning‐generated whistlers are commonly observed at low altitudes (up to ∼6000 km) but only rarely at ...
Platino, M., Inan, U.S., Bell, T.F., Gurnett, D.A., Pickett, J.S., Canu, P., Décréau, Pierrette   +6 more
openaire   +3 more sources

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 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

Statistical behavior of foreshock Langmuir waves observed by the Cluster wideband data plasma wave receiver [PDF]

Annales Geophysicae, 2004
We present the statistics of Langmuir wave amplitudes in the Earth's foreshock using Cluster Wideband Data (WBD) Plasma Wave Receiver electric field waveforms from spacecraft 2, 3 and 4 on 26 March 2002.
K. Sigsbee, C. A. Kletzing, D. A. Gurnett, J. S. Pickett, A. Balogh, E. Lucek   +5 more
doaj   +1 more source

Cusp structures: combining multi-spacecraft observations with ground-based observations [PDF]

Annales Geophysicae, 2003
Recent simultaneous observations of cusp structures with Polar, FAST and Interball revealed remarkably similar features at spacecraft crossing the cusp. Such stable cusp structures could be observed up to several hours only during stable solar wind
K. J. Trattner, K. J. Trattner, S. A. Fuselier, T. K. Yeoman, A. Korth, M. Fraenz, C. Mouikis, H. Kucharek, L. M. Kistler, C. P. Escoubet, H. R` eme, I. Dandouras, J. A. Sauvaud, J. M. Bosqued, B. Klecker, C. Carlson, T. Phan, J. P. McFadden, E. Amata, L. Eliasson   +19 more
doaj   +1 more source

Comparison of multi-point measurements of current sheet structure and analytical models [PDF]

Annales Geophysicae, 2008
Current density profiles of 22 thin current sheets, crossed by four Cluster spacecraft in the magnetotail are compared with the self-consistent model of anisotropic 1-D equilibrium, including several species of quasi-adiabatic (transient) ions and ...
A. V. Artemyev, A. A. Petrukovich, L. M. Zelenyi, H. V. Malova, H. V. Malova, V. Y. Popov, V. Y. Popov, R. Nakamura, A. Runov, S. Apatenkov   +9 more
doaj   +1 more source