Geomagnetic Storm Main Phase Effect on the Equatorial Ionosphere over Ile-Ife as measured using GPS ObservationsThe effect of the main phase of two intense geomagnetic storm events which occurred on August 5 - 6 and September 26 - 27, 2011 on the equatorial ionosphere have been investigated using Global…Ayomide Olabode, Emmanuel Ariyibi·Oct 24, 2019SaveLearn
Regional Coverage Analysis of LEO Satellites with Kepler OrbitsLow Earth orbit (LEO) satellites are being considered for expanding legacy terrestrial cellular networks. The end users may not be able to optimize satellite orbits and constellations, however, they…Iestyn Morgan-Jones, Pavel Loskot·Oct 22, 2019SaveLearn
Satellite orbital drag during magnetic stormsWe investigate satellite orbital drag effects at low-Earth orbit (LEO) associated with thermosphere heating during magnetic storms caused by coronal mass ejections. CHAllenge Mini-satellite Payload…Denny M. Oliveira, Eftyhia Zesta·Oct 21, 2019SaveLearn
The rotation angle distribution underlying magnetic field fluctuations in the 1/f range of solar wind turbulent spectraWe discuss properties of large amplitude magnetic field fluctuations during fast Alfvenic solar wind streams, focussing on the statistics of the rotation angle between consecutive magnetic field…L. Matteini, D. Stansby, T. S. Horbury et al.·Oct 16, 2019SaveLearn
Sun-Earth connection Event of Super Geomagnetic Storm on March 31, 2001: the Importance of Solar Wind DensityAn X1.7 flare at 10:15 UT and a halo CME with a projected speed of 942 km/s erupted from NOAA solar active region 9393 located at N20W19, were observed on 2001 March 29. When the CME reached the…Li-Bin Cheng, Gui-Ming Le, Ming-Xian Zhao·Oct 16, 2019SaveLearn
Analysis of cosmic rays' atmospheric effects and their relationships to cutoff rigidity and zenith angle using Global Muon Detector Network dataCosmic rays are charged particles whose flux observed at Earth shows temporal variations related to space weather phenomena and may be an important tool to study them. The cosmic ray intensity…R. R. S. Mendonça, C. Wang, C. R. Braga et al.·Oct 14, 2019SaveLearn
Effects of CME and CIR induced geomagnetic storms on low-latitude ionization over Indian longitudes in terms of neutral dynamicsThis paper presents the response of the ionosphere during the intense geomagnetic storms of October 12-20, 2016 and May 26-31, 2017 which occurred during the declining phase of the solar cycle 24.…Sumanjit Chakraborty, Sarbani Ray, Dibyendu Sur et al.·Oct 7, 2019SaveLearn
Turbulence and Transport During Guide-Field Reconnection at the MagnetopauseWe analyze the development and influence of turbulence in three-dimensional particle-in-cell simulations of guide-field magnetic reconnection at the magnetopause with parameters based on observations…L. Price, M Swisdak, J. F. Drake et al.·Oct 4, 2019SaveLearn
Correlation of Auroral Dynamics and GNSS Scintillation with an AutoencoderHigh energy particles originating from solar activity travel along the the Earth's magnetic field and interact with the atmosphere around the higher latitudes. These interactions often manifest as…Kara Lamb, Garima Malhotra, Athanasios Vlontzos et al.·Oct 4, 2019SaveLearn
Whistler instability stimulated by the suprathermal electrons present in space plasmasIn the absence of efficient collisions, deviations from thermal equilibrium of plasma particle distributions are controlled by the self-generated instabilities. The whistler instability is a…M. Lazar, R. A. Lopez, S. M. Shaaban et al.·Oct 2, 2019SaveLearn
Real-Time Thermospheric Density Estimation Via Two-Line-Element Data AssimilationInaccurate estimates of the thermospheric density are a major source of error in low Earth orbit prediction. To improve orbit prediction, real-time density estimation is required. In this work, we…David Gondelach, Richard Linares·Oct 1, 2019SaveLearn
Heliosheath Properties Measured from a Voyager 2 to Voyager 1 TransientIn mid-2012, a GMIR observed by Voyager 2 crossed through the heliosheath and collided with the heliopause, generating a pressure pulse that propagated into the very local interstellar medium. The…Jamie S. Rankin, David J. McComas, John D. Richardson et al.·Oct 1, 2019SaveLearn
Particle transport in hybrid PIC shock simulations: A comparison of diagnosticsRecent in-situ and remote observations suggest that the transport regime associated with shock accelerated particles may be anomalous i.e., the Mean Square Displacement (MSD) of such particles…D. Trotta, D. Burgess, G. Prete et al.·Sep 27, 2019SaveLearn
Heating of Heavy Ions in Low-beta Compressible TurbulenceEnhancement of minor ions such as 3He and heavy ions in flare-associated solar energetic particle (SEP) events remains one of the major puzzles in heliophysics. In this work, we use 3D hybrid…Xiangrong Fu, Fan Guo, Hui Li et al.·Sep 26, 2019SaveLearn
A New Method of 3D Magnetic Field ReconstructionA method is described to model the magnetic field in the vicinity of constellations of multiple satellites using field and plasma current measurements. This quadratic model has the properties that…R. B. Torbert, I. Dors, M. R. Argall et al.·Sep 25, 2019SaveLearn
Dependence of 3D Self-correlation Level Contours on the Scales in the Inertial Range of Solar Wind TurbulenceThe self-correlation level contours at the 1010 cm scale reveal a 3D isotropic feature in the slow solar wind and a quasi-anisotropic feature in the fast solar wind. However, the 1010 cm scale is…Honghong Wu, Chuanyi Tu, Xin Wang et al.·Sep 24, 2019SaveLearn
Electron pairing in mirror modes: Surpassing the quasilinear limitThe mirror mode evolving in collisionless magnetised high-temperature thermally anisotropic plasmas is shown to develop an interesting macro-state. Starting as a classical zero frequency ion fluid…R. A. Treumann, W. Baumjohann·Sep 23, 2019SaveLearn
Electron energy partition across interplanetary shocks: II. StatisticsA statistical analysis of 15,210 electron velocity distribution function (VDF) fits, observed within 2 hours of 52 interplanetary (IP) shocks by the Wind spacecraft near 1 AU, is presented.…Lynn B. Wilson, Li-Jen Chen, Shan Wang et al.·Sep 19, 2019SaveLearn
Simulations of the inner magnetospheric energetic electrons using theIMPTAM-VERB coupled modelIn this study, we present initial results of the coupling between the Inner Magnetospheric Particle Transport and Acceleration Model (IMPTAM) and the Versatile Electron Radiation Belt (VERB-3D) code.…Angelica M. Castillo, Yuri Y. Shprits, Natalia Ganushkina et al.·Sep 18, 2019SaveLearn
The Rapid Variability of Electric Field Waves within and near interplanetary shock ramps: STEREO ObservationsWe present STEREO observations within 1500 proton gyroradii of 12 interplanetary shocks, with long-duration burst mode electric field acquisition by S/WAVES enabling observation of the evolution of…Z. A. Cohen, C. A. Cattell, A. W. Breneman et al.·Sep 18, 2019SaveLearn
Extreme Value Based Estimation of Critical Single Event Failure ProbabilityA new survival probability function of ICs under space ion impact is proposed. Unlike the conventional approach, the function is based on the extreme value statistics which is rele-vant to the…G. I. Zebrev, A. M. Galimov, R. G. Useinov et al.·Sep 17, 2019SaveLearn
Two Plasma Sources of Dayside Martian Magnetosphere: Pick-up Ions -- Ionosphere InteractionDayside magnetosphere of Mars is a thin layer with usually increased magnetic field and heated planetary ions between the magnetosheath and the ionosphere. The Mars Atmosphere and Volatile Evolution…Oleg Vaisberg, Sergey Shuvalov, Aibar Ramazan et al.·Sep 16, 2019SaveLearn
Impedance and voltage power spectra of a monopole antenna in a warm plasma -- derivation and application to CubeSatsThe impedance for a monopole antenna is derived and compared with the cases for wire dipole and double-sphere antennas. This derivation produces a new expression for the monopole antenna response…Ronald Maj, Iver H. Cairns, M. M. Martinović·Sep 15, 2019SaveLearn
Near-real-time VTEC maps: new contribution for Latin America Space WeatherThe development of regional services able to provide ionospheric vertical totalelectron content (VTEC) maps and ionospheric indexes with a high spatialresolution, and in near-real-time, are of great…Luciano Pedro Oscar Mendoza, Amalia Meza, Juan Manuel Aragon Paz·Sep 11, 2019SaveLearn
The Northern and Southern Mid-latitude Ionospheric Trough using Global IGS vTEC mapThe aim of this work is the analysis of the mid-latitude ionospheric trough (MIT) using the Global Ionospheric Maps from IGS (GIMs) during the solar minimum, year 2008. This study was performed for…María Paula Natali, Juan Manuel Castaño, Amalia Meza·Sep 11, 2019SaveLearn