SPIS and MUSCAT Software Comparison on LEO-Like Environment

Matéo‐Vélez, Jean-Charles; Roussel, Jean; Inguimbert, Virginie; Cho, Mengu; Saito, Koya; Payan, D.

doi:10.1109/tps.2011.2173956

Cited by 15 publications

(3 citation statements)

References 6 publications

(3 reference statements)

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“…The numerical core and the user interface have been developed by ONERA and the Artenum company, respectively (Roussel et al, 2008 [9]). Various applications to spacecraft and ground experiment were performed by them and ESA (Roussel et al, 2010 [10], Hilgers et al (2006) [16]).…”

Section: B Spis Tool For Simulationsmentioning

confidence: 99%

Simulation Study of Spacecraft Electrostatic Sheath Changes With the Heliocentric Distances From 0.044 to 1 AU

Guillemant

Génot

Velez

et al. 2013

IEEE Trans. Plasma Sci.

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In this paper the electrostatic sheath of a simplified spacecraft is investigated for heliocentric distances varying from 0.044 to 1 AU, using the 3D Particle in Cell (PIC) software Satellite Plasma Interaction System (SPIS). The baseline context is the prediction of sheath effects on solar wind measurements for various missions including the Solar Probe Plus mission (perihelion at 0.044 AU from the Sun) and Solar Orbiter (perihelion at 0.28 AU). The electrostatic sheath and the spacecraft potential could interfere with the low energy (a few tens of eV) plasma measurements, by biasing the particle distribution functions measured by the detectors. If the spacecraft charges to large negative potentials, the problem will be more severe as low energy electrons will not be seen at all. The Solar Probe Plus and Solar Orbiter cases will be presented in details and extended to other distances through a parametric study, to investigate the influence of the heliocentric distance to spacecraft. Our main result is that for our spacecraft model the floating potential is a few volts positive from 1 AU to about 0.3 AU while below 0.3 AU the space charge of the photoelectrons and secondary electrons create a potential barrier that drives the spacecraft potential negative.

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Section: B Spis Tool For Simulationsmentioning

confidence: 99%

Simulation Study of Spacecraft Electrostatic Sheath Changes With the Heliocentric Distances From 0.044 to 1 AU

Guillemant

Génot

Velez

et al. 2013

IEEE Trans. Plasma Sci.

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“…The ONERA plasma chamber, named JONAS, was simulated and the results compared to experiments in Matéo-Vélez et al (2008). It has also been compared with other numerical models (Roussel et al, 2012;Matéo-Vélez et al, 2012a).…”

Section: Introductionmentioning

confidence: 99%

Solar wind plasma interaction with solar probe plus spacecraft

et al. 2012

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Abstract. 3-D PIC (Particle In Cell) simulations of spacecraft-plasma interactions in the solar wind context of the Solar Probe Plus mission are presented. The SPIS software is used to simulate a simplified probe in the near-Sun environment (at a distance of 0.044 AU or 9.5 R S from the Sun surface). We begin this study with a cross comparison of SPIS with another PIC code, aiming at providing the static potential structure surrounding a spacecraft in a high photoelectron environment. This paper presents then a sensitivity study using generic SPIS capabilities, investigating the role of some physical phenomena and numerical models. It confirms that in the near-sun environment, the Solar Probe Plus spacecraft would rather be negatively charged, despite the high yield of photoemission. This negative potential is explained through the dense sheath of photoelectrons and secondary electrons both emitted with low energies (2-3 eV). Due to this low energy of emission, these particles are not ejected at an infinite distance of the spacecraft and would rather surround it. As involved densities of photoelectrons can reach 10 6 cm −3 (compared to ambient ions and electrons densities of about 7 × 10 3 cm −3 ), those populations affect the surrounding plasma potential generating potential barriers for low energy electrons, leading to high recollection. This charging could interfere with the low energy (up to a few tens of eV) plasma sensors and particle detectors, by biasing the particle distribution functions measured by the instruments. Moreover, if the spacecraft charges to large negative potentials, the problem will be more severe as low energy electrons will not be seen at all. The importance of the modelling requirements in terms of precise prediction of spacecraft potential is also discussed.

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“…The existing comparison methods for the software in a particular domain Charles et al [10] analysed two spacecraft software tools, SPIS and MUSCAT, by cross-comparison. Their purpose was not to find out the best one but to provide some quantitative information.…”

mentioning

confidence: 99%

CTHP: Selection for adoption of open‐source bioinformatics software based on a customised ISO 25010 quality model, three‐way decision and Delphi hierarchy process

Bian

Zhang

et al. 2023

IET Software

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The ever-growing open-source software tools in different domains increase the difficulty of software selection from the end-users perspective. The process of evaluating, comparing, and selecting open-source solutions is far from trivial. Especially, when additional requirements need to be considered, the existing methodologies will fail to adapt to the new tasks. The objective of this study is to present a solution for dealing with this issue. A novel approach, CTHP, is presented for the evaluation and selection of open-source software in the Bioinformatics domain. First, the ISO 25010 quality model is chosen as the basis. This model is customised according to the special characteristics of the Bioinformatics applications. The customisation is done by extracting the quality factors from the Bioinformatics applications, weighting these factors from the viewpoints of both developers and end-users, and adding them to the model. After that, Three-way Decision and Delphi Hierarchy Process are integrated to assist in the selection for adoption. Finally, as a case study, the proposed approach is applied to assist the decisionmaking process of two popular natural language processing frameworks in the Bioinformatics area. Our study is a valuable contribution since it provides a systematic way to document the decision-making process and help the researchers and practitioners of Bioinformatics to make better decisions among the alternatives.

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SPIS and MUSCAT Software Comparison on LEO-Like Environment

Cited by 15 publications

References 6 publications

Simulation Study of Spacecraft Electrostatic Sheath Changes With the Heliocentric Distances From 0.044 to 1 AU

Simulation Study of Spacecraft Electrostatic Sheath Changes With the Heliocentric Distances From 0.044 to 1 AU

Solar wind plasma interaction with solar probe plus spacecraft

CTHP: Selection for adoption of open‐source bioinformatics software based on a customised ISO 25010 quality model, three‐way decision and Delphi hierarchy process

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