Collaborative Research Activities of the Arase and Van Allen Probes

Document Type

Article

Publication Date

8-1-2022

Abstract

This 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 phenomena occurring in the inner magnetosphere. Because the orbital inclination angle of Arase is larger than that of Van Allen Probes, Arase collected observations at higher L-shells up to L∼ 10. After March 2017, similar variations in plasma and waves were detected by Van Allen Probes and Arase. We describe plasma wave observations at longitudinally separated locations in space and geomagnetically-conjugate locations in space and on the ground. The results of instrument intercalibrations between the two missions are also presented. Arase continued its normal operation after the scientific operation of Van Allen Probes completed in October 2019. The combined Van Allen Probes (2012-2019) and Arase (2017-present) observations will cover a full solar cycle. This will be the first comprehensive long-term observation of the inner magnetosphere and radiation belts.

Identifier

85132552445 (Scopus)

Publication Title

Space Science Reviews

External Full Text Location

https://doi.org/10.1007/s11214-022-00885-4

e-ISSN

15729672

ISSN

00386308

Issue

5

Volume

218

Grant

NAS5-01072

Fund Ref

Japan Aerospace Exploration Agency

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