Results 61 to 70 of about 2,184,733 (309)

A statistical study of magnetospheric ion composition along the geomagnetic field using the Cluster spacecraft for L values between 5.9 and 9.5

, 2016
Using ion density data obtained by the CODIF (ion Composition and Distribution Function analyser) instrument on board the Cluster spacecraft, for the interval spanning 2001–2005, an empirical model describing the average ion mass distribution along ...
J. Sandhu, T. Yeoman, R. Fear, I. Dandouras   +3 more
semanticscholar   +1 more source

Cluster PEACE observations of electron pressure tensor divergence in the magnetotail [PDF]

, 2006
Cluster crossed the magnetotail neutral sheet on four occasions between 16: 38 and 16: 43 UT on 08/17/2003. The four-spacecraft capabilities of Cluster are used to determine spatial gradients from the magnetic field vectors and, for the first time, full ...
Alexeev, IV, Fazakerley, AN, Henderson, PD, Lahiff, AD, Lucek, E, Owen, CJ, Reme, H   +6 more
core   +1 more source

The HIA instrument on board the Tan Ce 1 Double Star near-equatorial spacecraft and its first results [PDF]

Annales Geophysicae, 2005
On 29 December 2003, the Chinese spacecraft Tan Ce 1 (TC-1), the first component of the Double Star mission, was successfully launched within a low-latitude eccentric orbit.
H. Rème, I. Dandouras, C. Aoustin, J. M. Bosqued, J. A. Sauvaud, C. Vallat, P. Escoubet, J. B. Cao, J. Shi, M. B. Bavassano-Cattaneo, G. K. Parks, C. W. Carlson, Z. Pu, B. Klecker, E. Moebius, L. Kistler, A. Korth, R. Lundin, the HIA team   +18 more
doaj   +1 more source

First observations of irregular surface of interplanetary shocks at ion scales by Cluster [PDF]

The ApJ Letters, Volume 874, Number 2, 2019, 2019
We present the first observational evidence of the irregular surface of interplanetary (IP) shocks by using multi-spacecraft observations of the Cluster mission. In total we discuss observations of four IP shocks that exhibit moderate Alfv\'enic Mach numbers (M$_A\leq$6.5). Three of them are high-$\beta$ shocks with upstream $\beta$ = 2.2--3.7.
arxiv   +1 more source

Conjugate observations of quasiperiodic emissions by the Cluster, Van Allen Probes, and THEMIS spacecraft [PDF]

, 2016
F. Němec, G. B. Hospodarsky, J. S. Pickett, O. Santolı́k, W. S. Kŭrth, C. Kletzing   +5 more
openalex   +2 more sources

A joint Cluster and ground-based instruments study of two magnetospheric substorm events on 1 September 2002 [PDF]

Annales Geophysicae, 2004
We present a coordinated ground- and space-based multi-instrument study of two magnetospheric substorm events that occurred on 1 September 2002, during the interval from 18:00 UT to 24:00 UT.
N. C. Draper, M. Lester, J. A. Wild, S. E. Milan, G. Provan, A. Grocott, S. W. H. Cowley, Y. Bogdanova, J. P. Dewhurst, A. N. Fazakerley, J. A. Davies, J.-M. Bosqued   +11 more
doaj   +1 more source

Solar wind current sheets: MVA inaccuracy and recommended single-spacecraft methodology [PDF]

arXiv, 2023
We present the analysis of 2,033 current sheets (CS) observed aboard four Cluster spacecraft in a pristine solar wind. Four-spacecraft estimates of the CS normal and propagation velocity are compared with different single-spacecraft estimates. The Minimum Variance Analysis (MVA) of the magnetic field is shown to be highly inaccurate in estimating the ...
arxiv  

Observations of the spatial and temporal structure of field-aligned beam and gyrating ring distributions at the quasi-perpendicular bow shock with Cluster CIS [PDF]

Annales Geophysicae, 2001
During the early orbit phase, the Cluster spacecraft have repeatedly crossed the perpendicular Earth’s bow shock and provided the first multi-spacecraft measurements. We have analyzed data from the Cluster Ion Spectrometry experiment (CIS), which
E. Möbius, H. Kucharek, C. Mouikis, E. Georgescu, L. M. Kistler, M. A. Popecki, M. Scholer, J. M. Bosqued, H. Rème, C. W. Carlson, B. Klecker, A. Korth, G. K. Parks, J. C. Sauvaud, H. Balsiger, M.-B. Bavassano-Cattaneo, I. Dandouras, A. M. DiLellis, L. Eliasson, V. Formisano, T. Horbury, W. Lennartsson, R. Lundin, M. McCarthy, J. P. McFadden, G. Paschmann   +25 more
doaj   +1 more source

Justification of the choice of the method and criterion of clustering for intelligent analysis in flight control spacecraft

Космические аппараты и технологии, 2020
The article examines the methods of intelligent analysis of telemetric information of spacecraft. The current state and main shortcomings of the control process during the spacecraft flight control are briefly given.
S. V. Soloviev
doaj   +1 more source

DEMON: a Proposal for a Satellite-Borne Experiment to study Dark Matter and Dark Energy [PDF]

, 2006
We outline a novel satellite mission concept, DEMON, aimed at advancing our comprehension of both dark matter and dark energy, taking full advantage of two complementary methods: weak lensing and the statistics of galaxy clusters.
, , Alicia Berciano Alba, Andrea Santovincenzo, Carina Persson, Carlos Monteserin-Sanchez, Fabio Mattana, Fabio Noviello, Francesca Giovacchini, Günther Hasinger, Hans Eichelberger, Linda Östman, Mareike Godolt, Michael Lerchster, Michal Michalowski, Ming Zhang, Pedro Borges de Silva, Peter Schneider, Vincent Lusset, Yannick Mellier   +19 more
core   +2 more sources