The Van Allen Probes Electric Field and Waves Instrument: Science Results, Measurements, and Access to Data

被引：20

作者：

Breneman, A. W. ^{[1
]}

Wygant, J. R. ^{[2
]}

Tian, S. ^{[2
]}

Cattell, C. A. ^{[2
]}

Thaller, S. A. ^{[2
]}

Goetz, K. ^{[2
]}

Tyler, E. ^{[2
]}

Colpitts, C. ^{[2
]}

Dai, L. ^{[2
]}

Kersten, K. ^{[2
]}

Bonnell, J. W. ^{[3
]}

Bale, S. D. ^{[3
]}

Mozer, F. S. ^{[3
]}

Harvey, P. R. ^{[3
]}

Dalton, G. ^{[3
]}

Ergun, R. E. ^{[4
,5
]}

Malaspina, D. M. ^{[4
,5
]}

Kletzing, C. A. ^{[6
]}

Kurth, W. S. ^{[6
]}

Hospodarsky, G. B. ^{[6
]}

Smith, C. ^{[3
,7
]}

Holzworth, R. H. ^{[8
]}

Lejosne, S. ^{[3
]}

Agapitov, O. ^{[3
]}

Artemyev, A. ^{[9
,10
]}

Hudson, M. K. ^{[11
]}

Strangeway, R. J. ^{[9
,10
]}

Baker, D. N. ^{[4
,5
]}

Li, X. ^{[4
]}

Albert, J. ^{[12
]}

Foster, J. C. ^{[13
]}

Erickson, P. J. ^{[13
]}

Chaston, C. C. ^{[3
]}

Mann, I ^{[14
]}

Donovan, E. ^{[15
]}

Cully, C. M. ^{[15
]}

Krasnoselskikh, V ^{[16
]}

Blake, J. B. ^{[17
]}

Millan, R. ^{[11
]}

机构：

[1] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[2] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

[3] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

[4] Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA

[5] Univ Colorado, Astrophys & Planetary Sci Dept, Boulder, CO 80309 USA

[6] Univ Iowa, Dept Phys & Astron, Iowa City, IA USA

[7] Univ New Hampshire, Phys Dept, Durham, NH USA

[8] Univ Washington, Earth & Space Sci, Seattle, WA 98195 USA

[9] Univ Calif Los Angeles, IGPP, Los Angeles, CA USA

[10] Univ Calif Los Angeles, Dept Earth & Space Sci, Los Angeles, CA USA

[11] Dartmouth Coll, Dept Phys & Astron, Hanover, NH USA

[12] Air Force Res Lab, Albuquerque, NM USA

[13] MIT, Haystack Observ, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[14] Univ Alberta, Dept Phys, Edmonton, AB, Canada

[15] Univ Calgary, Dept Phys & Astron, Calgary, AB, Canada

[16] Univ Orleans, LPC2E, Orleans, France

[17] Aerosp Corp, Space Sci Applicat Lab, El Segundo, CA 90245 USA

来源：

SPACE SCIENCE REVIEWS | 2022年 / 218卷 / 08期

关键词：

WHISTLER-MODE WAVES; RADIATION BELT ELECTRONS; SPHERICAL DOUBLE PROBES; KINETIC ALFVEN WAVES; LARGE-SCALE; INNER MAGNETOSPHERE; ENERGETIC ELECTRON; PLASMASPHERE EROSION; PROMPT ACCELERATION; DISPERSION-RELATION;

D O I：

10.1007/s11214-022-00934-y

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Van Allen Probes Electric Fields and Waves (EFW) instrument provided measurements of electric fields and spacecraft floating potentials over a wide dynamic range from DC to 6.5 kHz near the equatorial plane of the inner magnetosphere between 600 km altitude and 5.8 Re geocentric distance from October 2012 to November 2019. The two identical instruments provided data to investigate the quasi-static and low frequency fields that drive large-scale convection, waves induced by interplanetary shock impacts that result in rapid relativistic particle energization, ultra-low frequency (ULF) MHD waves which can drive radial diffusion, and higher frequency wave fields and time domain structures that provide particle pitch angle scattering and energization. In addition, measurements of the spacecraft potential provided a density estimate in cold plasmas (< 20 eV) from 10 to 3000 cm(-3). The EFW instrument provided analog electric field signals to EMFISIS for wave analysis, and it received 3d analog signals from the EMFISIS search coil sensors for inclusion in high time resolution waveform data. The electric fields and potentials were measured by current-biased spherical sensors deployed at the end of four 50 m booms in the spacecraft spin plane (spin period similar to 11 sec) and a pair of stacer booms with a total tip-tip separation of 15 m along the spin axis. Survey waveform measurements at 16 and/or 32 S/sec (with a nominal uncertainty of 0.3 mV/m over the prime mission) were available continuously while burst waveform captures at up to 16,384 S/sec provided high frequency waveforms. This post-mission paper provides the reader with information useful for accessing, understanding and using EFW data. Selected science results are discussed and used to highlight instrument capabilities. Science quantities, data quality and error sources, and analysis routines are documented.

引用

页数：60

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