Number of the records: 1
Solar Orbiter Radio and Plasma Waves – Time Domain Sampler: In-flight performance and first results
- 1.
SYSNO ASEP 0550709 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Solar Orbiter Radio and Plasma Waves – Time Domain Sampler: In-flight performance and first results Author(s) Souček, Jan (UFA-U) RID, ORCID
Píša, David (UFA-U) RID, ORCID
Kolmašová, Ivana (UFA-U) RID, ORCID
Uhlíř, Luděk (UFA-U) RID, ORCID
Lán, Radek (UFA-U) RID, ORCID
Santolík, Ondřej (UFA-U) RID, ORCID
Krupař, V. (US)
Krupařová, Oksana (UFA-U) RID, ORCID
Baše, Jiří (UFA-U) RID, ORCID
Maksimovic, M. (FR)
Bale, S. D. (US)
Chust, T. (FR)
Khotyaintsev, Y. V. (SE)
Krasnoselskikh, V. (FR)
Kretzschmar, M. (FR)
Lorfèvre, E. (FR)
Plettemeier, D. (DE)
Steller, M. (AT)
Štverák, Štěpán (UFA-U) RID, ORCID
Vaivads, A. (SE)
Vecchio, A. (FR)
Bérard, D. (FR)
Bonnin, X. (FR)Number of authors 23 Article number A26 Source Title Astronomy & Astrophysics. - : EDP Sciences - ISSN 0004-6361
Roč. 656, Dec 14 (2021)Number of pages 9 s. Language eng - English Country FR - France Keywords plasmas ; solar wind ; radio radiation ; waves ; instruments ; heliosphere Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) Method of publishing Open access Institutional support UFA-U - RVO:68378289 UT WOS 000730246400036 EID SCOPUS 85121588410 DOI 10.1051/0004-6361/202140948 Annotation Context. The Radio and Plasma Waves (RPW) instrument on board Solar Orbiter has been operating nearly continuously since the launch in February 2020. The Time Domain Sampler (TDS) receiver of the RPW instrument is dedicated to waveform measurements of plasma waves and dust impact signatures in an intermediate frequency range from 0.2 to 200 kHz.
Aims. This article presents the first data from the RPW-TDS receiver and discusses the in-flight performance of the instrument and, in particular, the on-board wave and dust detection algorithm. We present the TDS data products and its scientific operation. We demonstrate the content of the dataset on several examples. In particular, we study the distribution of solar Langmuir waves in the first year of observations and one Type III burst event.
Methods. The on-board detection algorithm is described in detail in this article and classifies the observed waveform snapshots, identifying plasma waves and dust impacts based on the ratio of their maximum amplitude to their median and on the spectral bandwidth. The algorithm allows TDS to downlink the most scientifically relevant waveforms and to perform an on-board statistical characterization of the processed data.
Results. The detection algorithm of TDS is shown to perform very well in its detection of plasma waves and dust impacts with a high accuracy. The initial analysis of statistical data returned by TDS shows that sporadic Langmuir waves that are not associated with Type III events are routinely observed in the inner heliosphere, with a clear increase in occurrence rate closer to the Sun. We also present an example of RPW observations during an encounter of the source region of a Type III burst, which exploits the on-board calculated histograms data.Workplace Institute of Atmospheric Physics Contact Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Year of Publishing 2022 Electronic address https://www.aanda.org/articles/aa/full_html/2021/12/aa40948-21/aa40948-21.html
Number of the records: 1