Work Description

Title: Data for Figure 2 from Livi et al. (2023), First Results from the Solar Orbiter Heavy Ion Sensor, Astronomy & Astrophysics Open Access Deposited

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Methodology
  • Data archived here are from the Heavy Ion Sensor (HIS) instrument on the Solar Orbiter spacecraft. HIS is an ion mass spectrometer and measures the composition of the solar wind by recording individual ion time-of-flight (TOF) and residual energy (E), from which the ion's mass and charge can be inferred. Please see Owen et al. (2020) for a complete description of the instrument and how it produces data. The data archived here represent raw data from the instrument. The only processing applied were (1) unpacking of the compressed, telemetered data packets, (2) accumulating counts in time and over field of view, (3) converting instrument channels to physical units (for example, TOF channel to TOF in nanoseconds), and (4) aligning measurements from the instrument's multiple solid state detectors to a common E-TOF channel grid.
Description
  • The data contained within the archive are for analysis and replication of Figure 2 in Livi et al. (2023), First Results from the Solar Orbiter Heavy Ion Sensor, Astronomy & Astrophysics. The readme.txt file contains more details on the contents of the archive and its files. Livi et al. (2023) reports the first solar wind composition measurements collected from the Heavy Ion Sensor (HIS) on the Solar Orbiter spacecraft. The period of study spans January-June 2022 during with the spacecraft completed nearly a full orbit about the Sun, from 0.3 AU to 1.0 AU. The solar wind composition within this publication are the first within the inner heliosphere. This paper describes the data and its processing from raw measurements (e.g., the data contained within this archive) to derived composition data products, and examines these composition data products about an interplanetary shock and interplanetary coronal mass ejection. Finally, these composition data are examined statistically and compared to historical data sets.
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  • rmdewey@umich.edu
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Citations to related material
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Last modified
  • 06/27/2023
Published
  • 06/27/2023
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DOI
  • https://doi.org/10.7302/rt8v-6c70
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To Cite this Work:
Dewey, R. M., Livi, S., Lepri, S. T., Raines, J. M., Ploof, K., The HIS Science Team. (2023). Data for Figure 2 from Livi et al. (2023), First Results from the Solar Orbiter Heavy Ion Sensor, Astronomy & Astrophysics [Data set], University of Michigan - Deep Blue Data. https://doi.org/10.7302/rt8v-6c70

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Files (Count: 2; Size: 74.1 KB)

Thumbnailthumbnail-column Title Original Upload Last Modified File Size Access Actions
Livi_et_al_2023_Solar_Orbiter_HI...a.zip 2023-06-19 2023-06-19 70 KB Open Access
readme.txt 2023-06-27 2023-06-27 4.11 KB Open Access

Date: 2023-06-23

Dataset Title: Data for Figure 2 from Livi et al. (2023), First Results from the Solar Orbiter Heavy Ion Sensor, Astronomy & Astrophysics

Dataset Creators: Dewey, Ryan M; Livi, Stefano; Lepri, Susan T; Raines, Jim M; Ploof, Keeling; and The HIS Science Team

Dataset Contact: Ryan M. Dewey, rmdewey@umich.edu

Dataset Overview:
The data contained within the archive are for analysis and replication of Figure 2 in Livi et al. (2023), First Results from the Solar Orbiter Heavy Ion Sensor, Astronomy & Astrophysics. This readme.txt file contains more details on the contents of the archive and its files. Livi et al. (2023) reports the first solar wind composition measurements collected from the Heavy Ion Sensor (HIS) on the Solar Orbiter spacecraft. The period of study spans January-June 2022 during with the spacecraft completed nearly a full orbit about the Sun, from 0.3 AU to 1.0 AU. The solar wind composition within this publication are the first within the inner heliosphere. This paper describes the data and its processing from raw measurements (e.g., the data contained within this archive) to derived composition data products, and examines these composition data products about an interplanetary shock and interplanetary coronal mass ejection. Finally, these composition data are examined statistically and compared to historical data sets.

Methodology:
Data archived here are from the Heavy Ion Sensor (HIS) instrument on the Solar Orbiter spacecraft. HIS is an ion mass spectrometer and measures the composition of the solar wind by recording individual ion time-of-flight (TOF) and residual energy (E), from which the ion's mass and charge can be inferred. Please see Owen et al. (2020) for a complete description of the instrument and how it produces data. The data archived here represent raw data from the instrument. The only processing applied were (1) unpacking of the compressed, telemetered data packets, (2) accumulating counts in time and over field of view, (3) converting instrument channels to physical units (for example, TOF channel to TOF in nanoseconds), and (4) aligning measurements from the instrument's multiple solid state detectors to a common E-TOF channel grid.

Archive Contents:
The archive Livi_et_al_2023_Solar_Orbiter_HIS_First_Results_Fig2_data.zip contains the supporting data for Figure 2 from Livi et al. (2023), First Results from the Solar Orbiter Heavy Ion Sensor, Astronomy & Astrophysics. The archive contains seven files, each corresponding to a subfigure. These files are all in the IDL .sav file format. The contents of each file is listed below. The files for Fig 2b-c contain the same variables. Likewise, the files for Fig 2d-g contain the same variables.

Livi_et_al_2023_Solar_Orbiter_HIS_First_Results_Fig2a.sav
solo_his_tcr_counts: 2-dimensional array of counts. The dimensions are [time, E/q].
solo_his_scan_start_time_julian_date: 1-dimensional array of scan start times, in Julian Date.
solo_his_scan_stop_time_julian_date: 1-dimensional array of scan stop times, in Julian Date.
solo_his_epq_lower: 1-dimensional array of the lower E/q bound, in keV/e.
solo_his_epq_higher: 1-dimensional array of the upper E/q bound, in keV/e.

Livi_et_al_2023_Solar_Orbiter_HIS_First_Results_Fig2b.sav
Livi_et_al_2023_Solar_Orbiter_HIS_First_Results_Fig2c.sav
solo_his_epq_tof_counts: 2-dimensional array of counts. The dimensions are [TOF, E/q].
solo_his_tof_ns_start: 1-dimensional array of the lower TOF value, in nanoseconds (ns).
solo_his_tof_ns_stop: 1-dimensional array of the upper TOF value, in ns.
solo_his_epq_lower: 1-dimensional array of the lower E/q bound, in keV/e.
solo_his_epq_higher: 1-dimensional array of the upper E/q bound, in keV/e.

Livi_et_al_2023_Solar_Orbiter_HIS_First_Results_Fig2d.sav
Livi_et_al_2023_Solar_Orbiter_HIS_First_Results_Fig2e.sav
Livi_et_al_2023_Solar_Orbiter_HIS_First_Results_Fig2f.sav
Livi_et_al_2023_Solar_Orbiter_HIS_First_Results_Fig2g.sav
solo_his_etof_counts: 2-dimensional array of counts. The dimensions are [TOF, Energy].
solo_his_tof_channel: 1-dimensional array of TOF channel.
solo_his_energy_channel: 1-dimensional array of Energy channel.

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