Concept of the Solar Ring mission: Preliminary design and mission profile

Wang, Yamin; Chen, Xin; Wang, Pengcheng; Qiu, Chengbo; Wang, Yuming; Zhang, YongHe

doi:10.1007/s11431-020-1612-y

Cited by 8 publications

(5 citation statements)

References 14 publications

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“…In our previous work (Lyu, et al 2020), we studied the 3D reconstruction of small-scale blobs by the CORAR method, and discussed the optimal stereoscopic angle for the Solar Ring mission (WANG et al 2020a;Wang, et al 2020b). In this study, we use the CORAR method to reconstruct the HI-1 dual-perspective images from December 2008 to February 2012, obtain the three-dimensional cc distribution to study the reconstruction performance for CME events in the heliosphere, and calculate the propagation direction of transients.…”

Section: Discussionmentioning

confidence: 99%

Three-dimensional Reconstruction of Coronal Mass Ejections by the Correlation-aided Reconstruction Technique through Different Stereoscopic Angles of the Solar Terrestrial Relations Observatory Twin Spacecraft

Lyu

Wang

et al. 2021

ApJ

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Recently, we developed the correlation-aided reconstruction (CORAR) method to reconstruct solar wind inhomogeneous structures, or transients, using dual-view white-light images. This method is proved to be useful for studying the morphological and dynamical properties of transients like blobs and coronal mass ejection (CME), but the accuracy of the reconstruction may be affected by the separation angle between the two spacecrafts. Based on the dual-view CME events from the Heliospheric Imager CME Join Catalogue in the Heliospheric Cataloguing, Analysis and Techniques Service (HELCATS) project, we study the quality of the reconstruction of CME using the CORAR method under different STEREO stereoscopic angles. We find that when the separation angle of the spacecraft is around 150°, most CME events can be well reconstructed. If the collinear effect is considered, the optimal separation angle should locate between 120° and 150°. Compared with the direction of the CME given in the Heliospheric Imager Geometrical Catalogue from HELCATS, the parameters of the CME obtained by the CORAR method are reasonable. However, the CORAR-obtained directions deviate toward the meridian plane in longitude, and toward the equatorial plane in latitude. An empirical formula is proposed to correct these deviations. This study provides the basis for the configuration of the spacecraft of our recently proposed Solar Ring mission concept.

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Section: Discussionmentioning

confidence: 99%

Three-dimensional Reconstruction of Coronal Mass Ejections by the Correlation-aided Reconstruction Technique through Different Stereoscopic Angles of the Solar Terrestrial Relations Observatory Twin Spacecraft

Lyu

Wang

et al. 2021

ApJ

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“…Thus, we propose the Solar Ring (SOR) mission, which is designed to deploy three (S1, S2 and S3) 120°-separated spacecraft (Figure 1) from 30° upstream of the Earth on the 1 AU orbit around the Sun in the ecliptic plane, to enable multi-vantage panoramic observations and studies of the Sun and the interplanetary space. This is an optimized version of our previously proposed SOR mission (Wang et al 2020(Wang et al , 2021, in which 6 spacecraft (3 groups of two 30°-separated spacecraft) were suggested. Compared with the previous design, the deployment of three spacecraft will achieve almost the same scientific objectives but with much lower cost.…”

Section: )mentioning

confidence: 99%

Solar ring mission: Building a panorama of the Sun and inner-heliosphere

Wang

Bai

Chen

et al. 2023

Advances in Space Research

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“…The preliminarily designed orbit of Solar Ring, which is an elliptical orbit inside the Earth orbit (see Sec.4 and the companion paper [27] for details), is a compromise between the scientific goals and the cost of the launch and transfer of the spacecraft. The spacecraft can self-drift to the desired position after being inserted into the orbit just like STEREO, that requires less fuel and can carry more scientific payloads.…”

Section: Scientific Rationale and Mission Objectivesmentioning

confidence: 99%

“…Combining the above considerations, the circular orbit is not the best option. Here we propose a low cost scheme (a more detailed and complete analysis of the mission profile and design can be found in the companion paper [27]). The elliptical orbit with the perihelion between 0.7 and 0.85 AU and the aphelion at 1 AU (Fig.…”

Section: Mission Profile and Designmentioning

confidence: 99%

Concept of the Solar Ring Mission: Overview

Wang,

Ji,

Wang

et al. 2020

Preprint

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The concept of the Solar Ring mission was gradually formed from L5/L4 mission concept, and the proposal of its pre-phase study was funded by the National Natural Science Foundation of China in November 2018 and then by the Strategic Priority Program of Chinese Academy of Sciences in space sciences in May 2019. Solar Ring mission will be the first attempt to routinely monitor and study the Sun and inner heliosphere from a full 360-degree perspective in the ecliptic plane. The current preliminary design of the Solar Ring mission is to deploy six spacecraft, grouped in three pairs, on a sub-AU orbit around the Sun. The two spacecraft in each group are separated by about 30 • and every two groups by about 120 • . This configuration with necessary science payloads will allow us to establish three unprecedented capabilities: (1) determine the photospheric vector magnetic field with unambiguity, (2) provide 360-degree maps of the Sun and the inner heliosphere routinely, and (3) resolve the solar wind structures at multiple scales and multiple longitudes. With these capabilities, the Solar Ring mission aims to address the origin of solar cycle, the origin of solar eruptions, the origin of solar wind structures and the origin of severe space weather events. The successful accomplishment of the mission will advance our understanding of the star and the space environment that hold our life and enhance our capability of expanding the next new territory of human.

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Concept of the Solar Ring mission: Preliminary design and mission profile

Cited by 8 publications

References 14 publications

Three-dimensional Reconstruction of Coronal Mass Ejections by the Correlation-aided Reconstruction Technique through Different Stereoscopic Angles of the Solar Terrestrial Relations Observatory Twin Spacecraft

Three-dimensional Reconstruction of Coronal Mass Ejections by the Correlation-aided Reconstruction Technique through Different Stereoscopic Angles of the Solar Terrestrial Relations Observatory Twin Spacecraft

Solar ring mission: Building a panorama of the Sun and inner-heliosphere

Concept of the Solar Ring Mission: Overview

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