Solar Orbiter: early in situ measurements

T. S. Horbury; J. Rodriguez-Pacheco; M. Maksimovic; C. J. Owen; V. Angelini; S. D. Bale; R. Bruno; T. Chust; V. Evans; R. Gomez-Herrero; G. C. Ho; Y. Khotyaintsev; V. Krasnoselskikh; Matthieu Kretzschmar; R. Livi; E. Lorfevre; P. Louarn; H. O'Brien; D. Plettemeier; J. Soucek; M. Steller; S. Stverak; P. Travnicek; A. Vaivads; A. Vecchio; R. F. Wimmer-Schweingruber

Conference papers

Solar Orbiter: early in situ measurements

T. S. Horbury J. Rodriguez-Pacheco M. Maksimovic ¹ C. J. Owen V. Angelini S. D. Bale R. Bruno T. Chust ² V. Evans R. Gomez-Herrero G. C. Ho Y. Khotyaintsev V. Krasnoselskikh ³ Matthieu Kretzschmar ³ R. Livi E. Lorfevre ⁴ P. Louarn ⁵ H. O'Brien D. Plettemeier J. Soucek M. Steller S. Stverak P. Travnicek A. Vaivads A. Vecchio ⁶ R. F. Wimmer-Schweingruber

1 LESIA (UMR_8109) - Laboratoire d'études spatiales et d'instrumentation en astrophysique

2 LPP - Laboratoire de Physique des Plasmas

3 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace

4 CNES - Centre National d'Études Spatiales [Toulouse]

5 IRAP - Institut de recherche en astrophysique et planétologie

6 Observatoire de Paris

Abstract : Solar Orbiter was launched in February 2020 and carries four in situ instruments: the Energetic Particle Detector (EPD); the magnetometer (MAG); the Radio and Plasma Wave experiment (RPW); and the Solar Wind Analyser (SWA). Following commissioning, all instruments are operating well and taking excellent data. We give a brief overview of the in situ measurements through Orbiter's early operations, including the first perihelion at 0.52 AU. These first data reveal a rich range of phenomena including: solar energetic particle events at 0.6 AU; a coronal mass ejection measured at 0.8 AU upstream of the Earth; the first heavy ion measurements from the inner heliosphere; dust and waves throughout the inner heliosphere, including from comet ATLAS; and switchbacks from polar coronal holes at 0.5 AU. We discuss the operational strategies of the in situ payload, the plans for coordination with other missions, and the prospects for science during the coming years.

Keywords : General or miscellaneous ASTRONOMY ASTROPHYSICS SOLAR PHYSICS Instruments and techniques

Document type :

Conference papers

Domain :

Sciences of the Universe [physics]

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https://hal-insu.archives-ouvertes.fr/insu-03560373
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Submitted on : Monday, February 7, 2022 - 3:18:50 PM
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Solar Orbiter: early in situ measurements

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Solar Orbiter: early in situ measurements

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