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. Escoubet, E. Lucek
semanticscholar +2 more sources
Correlation functions of small-scale fluctuations of the interplanetary magnetic field [PDF]
, 2010 The Interplanetary Magnetic Field shows complex spatial and temporal variations. Single spacecraft measurements reveal only a one dimensional section of this rich four dimensional phenomenon.
A. Balogh +18 more
core +2 more sources
Study of the applicability of the curlometer technique with the four Cluster spacecraft in regions close to Earth [PDF]
, 2012 . Knowledge of the inner magnetospheric current system (intensity, boundaries, evolution) is one of the key elements for the understanding of the whole magnetospheric current system.
S. Grimald +3 more
semanticscholar +2 more sources
Intensities and spatiotemporal variability of equatorial noise emissions observed by the Cluster spacecraft [PDF]
Journal of Geophysical Research: Space Physics, 2015 Equatorial 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.
F. Němec +3 more
semanticscholar +6 more sources
Oblique lower band chorus waves: Time shifts between discrete elements observed by the Cluster spacecraft [PDF]
, 2009 [1] We report observations of remarkable frequency differences and time shifts between the corresponding elements of lower band chorus recorded by the four Cluster spacecraft at low magnetic latitudes on 20 January 2004.
J. Chum +3 more
semanticscholar +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.
F. Němec +4 more
semanticscholar +6 more sources
Origin of the turbulent spectra in the high-altitude cusp: Cluster spacecraft observations [PDF]
Annales Geophysicae, 2006 High-resolution magnetic field data from Cluster Flux Gate Magnetometer (FGM) and the Spatio-Temporal Analysis of Field Fluctuations (STAFF) instruments are used to study turbulent magnetic field fluctuations during the high-altitude cusp crossing on 17 ...
K. Nykyri +8 more
semanticscholar +12 more sources
Construction of small spacecraft clusters [PDF]
Izvestiâ vysših učebnyh zavedenij. Priborostroenie, 2016 V. Yu. Klyushnikov
openalex +3 more sources
Kernel Embedding Approaches to Orbit Determination of Spacecraft Clusters [PDF]
arXiv, 2018 This paper presents a novel formulation and solution of orbit determination over finite time horizons as a learning problem. We present an approach to orbit determination under very broad conditions that are satisfied for n-body problems. These weak conditions allow us to perform orbit determination with noisy and highly non-linear observations such as
Sharma, Srinagesh, Cutler, James W.
arxiv +3 more sources
Study of hot flow anomalies using Cluster multi-spacecraft measurements [PDF]
Facsko, G., Trotignon, J. G., Dandouras, I., Lucek, E. A., Daly,
P. W. 2010, Advances in Space Research, 45, 541, 2018 Hot flow anomalies (HFAs) were first discovered in the early 1980s at the bow shock of the Earth. In the 1990s these features were studied, observed and simulated very intensively and many new missions focused the attention to this phenomenon again.
Facskó, G. +4 more
arxiv +6 more sources