Results 1 to 10 of about 6,894 (155)

Collaborative Research Activities of the Arase and Van Allen Probes. [PDF]

Space Sci Rev, 2022
AbstractThis paper presents the highlights of joint observations of the inner magnetosphere by the Arase spacecraft, the Van Allen Probes spacecraft, and ground-based experiments integrated into spacecraft programs. The concurrent operation of the two missions in 2017–2019 facilitated the separation of the spatial and temporal structures of dynamic ...
Miyoshi Y, Shinohara I, Ukhorskiy S, Claudepierre SG, Mitani T, Takashima T, Hori T, Santolik O, Kolmasova I, Matsuda S, Kasahara Y, Teramoto M, Katoh Y, Hikishima M, Kojima H, Kurita S, Imajo S, Higashio N, Kasahara S, Yokota S, Asamura K, Kazama Y, Wang SY, Jun CW, Kasaba Y, Kumamoto A, Tsuchiya F, Shoji M, Nakamura S, Kitahara M, Matsuoka A, Shiokawa K, Seki K, Nosé M, Takahashi K, Martinez-Calderon C, Hospodarsky G, Colpitts C, Kletzing C, Wygant J, Spence H, Baker DN, Reeves GD, Blake JB, Lanzerotti L.   +44 more
europepmc   +6 more sources

Spacecraft surface charging within geosynchronous orbit observed by the Van Allen Probes. [PDF]

Space Weather, 2016
AbstractUsing the Helium Oxygen Proton Electron (HOPE) and Electric Field and Waves (EFW) instruments from the Van Allen Probes, we explored the relationship between electron energy fluxes in the eV and keV ranges and spacecraft surface charging. We present statistical results on spacecraft charging within geosynchronous orbit by L and MLT.
Sarno-Smith LK, Larsen BA, Skoug RM, Liemohn MW, Breneman A, Wygant JR, Thomsen MF.   +6 more
europepmc   +6 more sources

The plasma environment inside geostationary orbit: A Van Allen Probes HOPE survey. [PDF]

J Geophys Res Space Phys, 2017
AbstractThe two full precessions in local time completed by the Van Allen Probes enable global specification of the near‐equatorial inner magnetosphere plasma environment. Observations by the Helium‐Oxygen‐Proton‐Electron (HOPE) mass spectrometers provide detailed insight into the global spatial distribution of electrons, H+, He+, and O+.
Fernandes PA, Larsen BA, Thomsen MF, Skoug RM, Reeves GD, Denton MH, Friedel RHW, Funsten HO, Goldstein J, Henderson MG, Jahn JM, MacDonald EA, Olson DK.   +12 more
europepmc   +6 more sources

Science of the Van Allen Probes Science Operations Centers. [PDF]

Space Sci Rev, 2022
AbstractThe Van Allen Probes mission operations materialized through a distributed model in which operational responsibility was divided between the Mission Operations Center (MOC) and separate instrument specific SOCs. The sole MOC handled all aspects of telemetering and receiving tasks as well as certain scientifically relevant ancillary tasks.
Manweiler JW, Breneman A, Niehof J, Larsen B, Romeo G, Stephens G, Halford A, Kletzing C, Brown LE, Spence H, Reeves G, Friedel R, Smith S, Skoug R, Blake B, Baker D, Kanekal S, Hoxie V, Jaynes A, Wygant J, Bonnell J, Crawford D, Gkioulidou M, Lanzerotti LJ, Mitchell DG, Gerrard A, Ukhorskiy A, Sotirelis T, Barnes RJ, Millan R, Harris B.   +30 more
europepmc   +3 more sources

Van Allen Probes Observations of Symmetric Stormtime Compressional ULF Waves. [PDF]

J Geophys Res Space Phys, 2022
AbstractPrevious spacecraft studies showed that stormtime poloidal ultralow‐frequency (ULF) waves in the ring current region have an antisymmetric (second harmonic) mode structure about the magnetic equator. This paper reports Van Allen Probes observations of symmetric ULF waves in the postnoon sector during a moderate geomagnetic storm.
Takahashi K, Crabtree C, Ukhorskiy AY, Boyd A, Denton RE, Turner D, Gkioulidou M, Vellante M, Spence HE.   +8 more
europepmc   +3 more sources

Combined model of topside ionosphere and plasmasphere derived from radio-occultation and Van Allen Probes data [PDF]

Scientific Reports, 2022
In the last years, electron density profile functions characterized by a linear dependence on the scale height showed good results when approximating the topside ionosphere. The performance above 800 km, however, is not yet well investigated.
Fabricio S. Prol, Artem G. Smirnov, M. Mainul Hoque, Yuri Y. Shprits   +3 more
doaj   +2 more sources

Banana Current in the Inner Magnetosphere Observed by Van Allen Probes

Geophysical Research Letters, 2023
By using the magnetic field data from Van Allen Probes, we analyzed the distribution characteristics of the electromagnetic environment in the inner magnetosphere on different Dst* index and magnetic local time.
Tong‐Hui Wang, Xiao‐Xin Zhang, Fei He, Jing‐Tian Lv, Qiu‐Gang Zong, Hui‐Shan Fu   +5 more
doaj   +2 more sources

Magnetohydrodynamic modeling of three Van Allen Probes storms in 2012 and 2013 [PDF]

Annales Geophysicae, 2015
Coronal mass ejection (CME)-shock compression of the dayside magnetopause has been observed to cause both prompt enhancement of radiation belt electron flux due to inward radial transport of electrons conserving their first adiabatic invariant and ...
J. Paral, J. Paral, M. K. Hudson, B. T. Kress, M. J. Wiltberger, J. R. Wygant, H. J. Singer   +6 more
doaj   +3 more sources

Van Allen Probes observation of plasmaspheric hiss modulated by injected energetic electrons [PDF]

Annales Geophysicae, 2018
Plasmaspheric hiss was observed by Van Allen Probe B in association with energetic electron injections in the outer plasmasphere. The energy of injected electrons coincides with the minimum resonant energy calculated for the observed hiss wave ...
R. Shi, W. Li, Q. Ma, Q. Ma, S. G. Claudepierre, C. A. Kletzing, W. S. Kurth, G. B. Hospodarsky, H. E. Spence, G. D. Reeves, J. F. Fennell, J. B. Blake, S. A. Thaller, J. R. Wygant   +13 more
doaj   +4 more sources

A comparison of energetic particle energization observations at MMS and injections at Van Allen Probes

Frontiers in Astronomy and Space Sciences, 2023
In this study, we examine particle energization and injections that show energetic electron enhancements at both MMS in the magnetotail and Van Allen Probes in the inner magnetosphere.
S. N. F. Chepuri, A. N. Jaynes, D. L. Turner, C. Gabrielse, D. N. Baker, B. H. Mauk, I. J. Cohen, T. Leonard, J. B. Blake, J. F. Fennell   +9 more
doaj   +1 more source