A background correction algorithm for Van Allen Probes MagEIS electron flux measurements

Claudepierre, S. G.; O'Brien, T. P.; Blake, J. B.; Fennell, J. F.; Roeder, J. L.; Clemmons, J. H.; Looper, M. D.; Mazur, J. E.; Mulligan, T. M.; Spence, H. E.; Reeves, G. D.; Friedel, R. H. W.; Henderson, M. G.; Larsen, B. A.

doi:10.1002/2015JA021171

Title: A background correction algorithm for Van Allen Probes MagEIS electron flux measurements

Journal Article · Tue Jul 14 00:00:00 EDT 2015 · Journal of Geophysical Research. Space Physics

DOI:https://doi.org/10.1002/2015JA021171· OSTI ID:1212474

Claudepierre, S. G. ^[1]; O'Brien, T. P. ^[1]; Blake, J. B. ^[1]; Fennell, J. F. ^[1]; Roeder, J. L. ^[1]; Clemmons, J. H. ^[1]; Looper, M. D. ^[1]; Mazur, J. E. ^[1]; Mulligan, T. M. ^[1]; Spence, H. E. ^[2];

^[3]; Friedel, R. H. W. ^[3]; Henderson, M. G. ^[3]; Larsen, B. A. ^[3]

The Aerospace Corporation, El Segundo, CA (United States). Space Sciences Dept.
Univ. of New Hampshire, Durham, NH (United States). Institute for the Study of Earth Oceans and Space.
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

We describe an automated computer algorithm designed to remove background contamination from the Van Allen Probes Magnetic Electron Ion Spectrometer (MagEIS) electron flux measurements. We provide a detailed description of the algorithm with illustrative examples from on-orbit data. We find two primary sources of background contamination in the MagEIS electron data: inner zone protons and bremsstrahlung X-rays generated by energetic electrons interacting with the spacecraft material. Bremsstrahlung X-rays primarily produce contamination in the lower energy MagEIS electron channels (~30–500 keV) and in regions of geospace where multi-M eV electrons are present. Inner zone protons produce contamination in all MagEIS energy channels at roughly L < 2.5. The background-corrected MagEIS electron data produce a more accurate measurement of the electron radiation belts, as most earlier measurements suffer from unquantifiable and uncorrectable contamination in this harsh region of the near-Earth space environment. These background-corrected data will also be useful for spacecraft engineering purposes, providing ground truth for the near-Earth electron environment and informing the next generation of spacecraft design models (e.g., AE9).

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1212474

Alternate ID(s):: OSTI ID: 1215742

Report Number(s):: LA-UR-14-29166

Journal Information:: Journal of Geophysical Research. Space Physics, Vol. 120, Issue 7; ISSN 2169-9380

Publisher:: American Geophysical UnionCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 78 works

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Modeling the Electron Flux Enhancement and Butterfly Pitch Angle Distributions on L Shells <2.5 Hua, Man; Li, Wen; Ma, Qianli Geophysical Research Letters, Vol. 46, Issue 20 https://doi.org/10.1029/2019gl084822	journal	October 2019
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Dynamics of Megaelectron Volt Electrons Observed in the Inner Belt by PROBA‐V/EPT Pierrard, V.; Lopez Rosson, G.; Botek, E. Journal of Geophysical Research: Space Physics, Vol. 124, Issue 3 https://doi.org/10.1029/2018ja026289	journal	March 2019
Electron Intensity Measurements by the Cluster/RAPID/IES Instrument in Earth's Radiation Belts and Ring Current Smirnov, A. G.; Kronberg, E. A.; Latallerie, F. Space Weather, Vol. 17, Issue 4 https://doi.org/10.1029/2018sw001989	journal	April 2019
How Sudden, Intense Energetic Electron Enhancements Correlate With the Innermost Plasmapause Locations Under Various Solar Wind Drivers and Geomagnetic Conditions Khoo, L. ‐Y.; Li, X.; Zhao, H. Journal of Geophysical Research: Space Physics, Vol. 124, Issue 11 https://doi.org/10.1029/2019ja027412	journal	November 2019
Comparison of Electron Loss Models in the Inner Magnetosphere During the 2013 St. Patrick's Day Geomagnetic Storm Ferradas, C. P.; Jordanova, V. K.; Reeves, G. D. Journal of Geophysical Research: Space Physics, Vol. 124, Issue 10 https://doi.org/10.1029/2019ja026649	journal	October 2019
Space Weather Effects in the Earth’s Radiation Belts Baker, D. N.; Erickson, P. J.; Fennell, J. F. The Scientific Foundation of Space Weather https://doi.org/10.1007/978-94-024-1588-9_11	book	January 2017
Dynamics of Megaelectron Volt Electrons Observed in the Inner Belt by PROBA-V/EPT Pierrard, Viviane; Rosson, Graciela Lopez; Botek, Edith arXiv https://doi.org/10.48550/arxiv.1903.12198	text	January 2019

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