A statistical study of magnetospheric electron density using the Cluster spacecraft [PDF]
Journal of Geophysical Research: Space Physics, 2016 Observations from the WHISPER (Waves of High frequency and Sounder for Probing of Electron density by Relaxation) instrument on board Cluster, for the interval spanning 2001–2012, are utilized to determine an empirical model describing the total electron
J. Sandhu +3 more
semanticscholar +8 more sources
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 +3 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
Solitary potential structures observed in the magnetosheath by the Cluster spacecraft [PDF]
Nonlinear Processes in Geophysics, 2003 Abstract. Bipolar pulses of ~ 25-100 µs in duration have been observed in the wave electric field data obtained by the Wideband plasma wave instrument on the Cluster spacecraft in the dayside magnetosheath. These pulses are similar in almost all respects to those observed on several spacecraft over the last few years.
J. S. Pickett +6 more
openalex +6 more sources
Solitary waves observed in the auroral zone: the Cluster multi-spacecraft perspective [PDF]
Nonlinear Processes in Geophysics, 2004 Abstract. We report on recent measurements of solitary waves made by the Wideband Plasma Wave Receiver located on each of the four Cluster spacecraft at 4.5-6.5RE (well above the auroral acceleration region) as they cross field lines that map to the auroral zones.
J. S. Pickett +17 more
openalex +8 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 +5 more
doaj +2 more sources
Intensities and spatiotemporal variability of equatorial noise emissions observed by the Cluster spacecraft [PDF]
Journal of Geophysical Research: Space Physics, 2015 AbstractEquatorial noise (EN) emissions are electromagnetic waves observed in the equatorial region of the inner magnetosphere at frequencies between the proton cyclotron frequency and the lower hybrid frequency. We present the analysis of 2229 EN events identified in the Spatio‐Temporal Analysis of Field Fluctuations (STAFF) experiment data of the ...
F. Němec +3 more
semanticscholar +5 more sources
Ionospheric plasma density structures associated with magnetopause motion: a case study using the Cluster spacecraft and the EISCAT Svalbard Radar [PDF]
, 2004 . On 5 January 2003, the footprint of the Cluster spacecraft, then orbiting in the dayside magnetosphere near the magnetopause, was in the close vicinity of the EISCAT Svalbard Radar (ESR) in the dayside afternoon sector. This configuration made possible
F. Pitout, C. P. Escoubet, E. Lucek
openalex +2 more sources
Quasiperiodic emissions observed by the Cluster spacecraft and their association with ULF magnetic pulsations [PDF]
Journal of Geophysical Research: Space Physics, 2013 Quasiperiodic (QP) emissions are electromagnetic waves at frequencies of about 0.5–4 kHz characterized by a periodic time modulation of the wave intensity, with a typical modulation period on the order of minutes. We present results of a survey of QP emissions observed by the Wide‐Band Data (WBD) instruments on board the Cluster spacecraft.
F. Němec +4 more
semanticscholar +5 more sources
ION INJECTION AT QUASI-PARALLEL SHOCKS SEEN BY THE CLUSTER SPACECRAFT
The Astrophysical Journal Letters, 2016 ABSTRACT Collisionless shocks in space plasma are known to be capable of accelerating ions to very high energies through diffusive shock acceleration (DSA). This process requires an injection of suprathermal ions, but the mechanisms producing such a suprathermal ion seed population are still not fully understood. We study acceleration of
A. Johlander +4 more
semanticscholar +5 more sources