Huanxin Zhang, G. Shen, Shenyi Zhang, Lin Quan, Chao Tian, Xiangtang Cui, Changsheng Tuo, D. Hou, Ying Sun, L. Cheng, Pengcheng Zhou, Wentao Ji
Abstract This work introduces the instruments’ design of multi-directional medium-energy electron detector (energy range: 30–770 keV) and high-energy electron detector (energy range: 400 keV to 5.8 MeV) deployed on one of the BeiDou navigation satellites in medium earth orbit. Through the electromagnetic compatibility design, the problem of the detector signal being susceptible to electromagnetic interference is solved and the lower detection limit reaches a very low level of 20 keV. The proton contamination in the electron measurement can be effectively removed by designing the light-blocking layer and the logical working mode of the sensors. The detector circuits and sensor structure are optimized and the miniaturization of the instrument is realized. This study also introduces the calibration method of the detectors, and gives the ground test results, which can provide a basis for the on-orbit calibration and data processing of the instrument.
{"title":"Medium and high energy electron detectors onboard BeiDou navigation satellite in MEO","authors":"Huanxin Zhang, G. Shen, Shenyi Zhang, Lin Quan, Chao Tian, Xiangtang Cui, Changsheng Tuo, D. Hou, Ying Sun, L. Cheng, Pengcheng Zhou, Wentao Ji","doi":"10.1515/astro-2022-0201","DOIUrl":"https://doi.org/10.1515/astro-2022-0201","url":null,"abstract":"Abstract This work introduces the instruments’ design of multi-directional medium-energy electron detector (energy range: 30–770 keV) and high-energy electron detector (energy range: 400 keV to 5.8 MeV) deployed on one of the BeiDou navigation satellites in medium earth orbit. Through the electromagnetic compatibility design, the problem of the detector signal being susceptible to electromagnetic interference is solved and the lower detection limit reaches a very low level of 20 keV. The proton contamination in the electron measurement can be effectively removed by designing the light-blocking layer and the logical working mode of the sensors. The detector circuits and sensor structure are optimized and the miniaturization of the instrument is realized. This study also introduces the calibration method of the detectors, and gives the ground test results, which can provide a basis for the on-orbit calibration and data processing of the instrument.","PeriodicalId":19514,"journal":{"name":"Open Astronomy","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45601539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lin Quan, Dongya Wang, Qingxiang Zhang, Shenyi Zhang, Ling Li, Shuai Wang, T. Jing, Yinan Meng, Yen-li Liu, Chao Tian
Abstract Combining the anomalies and environmental monitoring data of the early stage Beidou satellites, the space radiation environment spatial/temporal distribution and space radiation effect risk characteristics are analyzed, and the dynamic characteristics of space environmental factors, such as hot plasma, high-energy electron and solar proton are summarized. The systematic joint monitoring for surface charging, internal charging, single event effect and total dose effect with corresponding space environment factors is proposed. The detector types, measurement parameters range and engineering constraints are allocated, and the engineering application and scientific research of detection data are prospected.
{"title":"Radiation environment and effect detection based on global navigation constellation","authors":"Lin Quan, Dongya Wang, Qingxiang Zhang, Shenyi Zhang, Ling Li, Shuai Wang, T. Jing, Yinan Meng, Yen-li Liu, Chao Tian","doi":"10.1515/astro-2022-0204","DOIUrl":"https://doi.org/10.1515/astro-2022-0204","url":null,"abstract":"Abstract Combining the anomalies and environmental monitoring data of the early stage Beidou satellites, the space radiation environment spatial/temporal distribution and space radiation effect risk characteristics are analyzed, and the dynamic characteristics of space environmental factors, such as hot plasma, high-energy electron and solar proton are summarized. The systematic joint monitoring for surface charging, internal charging, single event effect and total dose effect with corresponding space environment factors is proposed. The detector types, measurement parameters range and engineering constraints are allocated, and the engineering application and scientific research of detection data are prospected.","PeriodicalId":19514,"journal":{"name":"Open Astronomy","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48839402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Binquan Zhang, Shenyi Zhang, G. Shen, Changsheng Tuo, Xin Zhang, Huanxin Zhang, Lin Quan, Chao Tian, D. Hou, Pengcheng Zhou, Wentao Ji
Abstract The single event effect caused by space heavy ion radiation is one of the important factors affecting the safety and operation of spacecraft on orbit. In the research and evaluation of the frequency, spatial distribution and time characteristics of single event effects, linear energy transfer (LET) spectra of space radiation play an important role. On the Beidou navigation M15 and M16 satellites, a single event upset (SEU) and LET monitor was developed to obtain the upsets of the memory device and the LET spectra of space radiation which passes through the device. Through the measurement results from this monitor, the correlation between the device’s SEUs and the LET spectra could be studied.
{"title":"Monitor of the single event upsets and linear energy transfer of space radiation on the Beidou navigation satellites","authors":"Binquan Zhang, Shenyi Zhang, G. Shen, Changsheng Tuo, Xin Zhang, Huanxin Zhang, Lin Quan, Chao Tian, D. Hou, Pengcheng Zhou, Wentao Ji","doi":"10.1515/astro-2022-0206","DOIUrl":"https://doi.org/10.1515/astro-2022-0206","url":null,"abstract":"Abstract The single event effect caused by space heavy ion radiation is one of the important factors affecting the safety and operation of spacecraft on orbit. In the research and evaluation of the frequency, spatial distribution and time characteristics of single event effects, linear energy transfer (LET) spectra of space radiation play an important role. On the Beidou navigation M15 and M16 satellites, a single event upset (SEU) and LET monitor was developed to obtain the upsets of the memory device and the LET spectra of space radiation which passes through the device. Through the measurement results from this monitor, the correlation between the device’s SEUs and the LET spectra could be studied.","PeriodicalId":19514,"journal":{"name":"Open Astronomy","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41751663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract In 2007, Storti predicted that the value of the cosmic microwave background radiation (CMBR) temperature may be improved: from the particle data group (PDG) value of [T 0 = 2.725 ± 0.001 K] to [T 0 = 2.7254 K]. In 2011, the PDG revised their value of CMBR to [T 0 = 2.7255 ± 0.006 K]. In 2008, Storti predicted a ΛCDM Hubble constant of [H 0 = 67.0843 km/s/Mpc]. In the same year, the PDG published their value as being [H 0 = 73 ± 3 km/s/Mpc]. In 2013, the PDG published a revised value of [H 0] as being considerably lower [H 0 = 67.3 ± 1.2 km/s/Mpc]. These predictions and experimental confirmations, in particular the value of [H 0] being successfully predicted 5 years in advance of the Planck collaboration and without Planck satellite instrumentation, demonstrate the power of the technique applied. We utilize the same technique to calculate the present values of ΛCDM [H 0], [ΩΛ], [ΩM], [q], and [Λ]. Subsequently, we describe the complete history of the cosmos from the instant of the Big Bang to the present epoch, in complete agreement with the standard model of cosmology. Moreover, we explicitly demonstrate that the Hubble tension does not exist, in a companion publication to this research article. This is achieved by utilizing a single equation to calculate both values of Hubble constant associated with the Hubble tension.
{"title":"The history of the Cosmos: Implications for the Hubble tension","authors":"R. Storti","doi":"10.1515/astro-2022-0226","DOIUrl":"https://doi.org/10.1515/astro-2022-0226","url":null,"abstract":"Abstract In 2007, Storti predicted that the value of the cosmic microwave background radiation (CMBR) temperature may be improved: from the particle data group (PDG) value of [T 0 = 2.725 ± 0.001 K] to [T 0 = 2.7254 K]. In 2011, the PDG revised their value of CMBR to [T 0 = 2.7255 ± 0.006 K]. In 2008, Storti predicted a ΛCDM Hubble constant of [H 0 = 67.0843 km/s/Mpc]. In the same year, the PDG published their value as being [H 0 = 73 ± 3 km/s/Mpc]. In 2013, the PDG published a revised value of [H 0] as being considerably lower [H 0 = 67.3 ± 1.2 km/s/Mpc]. These predictions and experimental confirmations, in particular the value of [H 0] being successfully predicted 5 years in advance of the Planck collaboration and without Planck satellite instrumentation, demonstrate the power of the technique applied. We utilize the same technique to calculate the present values of ΛCDM [H 0], [ΩΛ], [ΩM], [q], and [Λ]. Subsequently, we describe the complete history of the cosmos from the instant of the Big Bang to the present epoch, in complete agreement with the standard model of cosmology. Moreover, we explicitly demonstrate that the Hubble tension does not exist, in a companion publication to this research article. This is achieved by utilizing a single equation to calculate both values of Hubble constant associated with the Hubble tension.","PeriodicalId":19514,"journal":{"name":"Open Astronomy","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46355386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Guest Editorial: Special Issue of New Technology for Space Environment Detection Based on Beidou Constellation","authors":"Lin Quan, Yu Jiang, Shenyi Zhang","doi":"10.1515/astro-2022-0195","DOIUrl":"https://doi.org/10.1515/astro-2022-0195","url":null,"abstract":"","PeriodicalId":19514,"journal":{"name":"Open Astronomy","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48027843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
X. Shan, Bin Miao, Z. Cao, Zhenyu Sun, Yiren Li, K. Liu, Sanbiao Qu, Xingyu Guo, Z. Su, C. Shen, Z. Pan, Xin Li, X. Hao, Xiaoping Yang, Chao Tian, Yu Jiang, Shubin Liu, Q. An, Xiangjun Chen, Yuming Wang
Abstract A low-energy ion spectrometer (LEIS), onboard a Chinese navigation satellite in geosynchronous orbit, is one of the primary instruments for plasma detection. The LEIS is implemented by combining a top-hat electrostatic analyzer with a pair of angular scanning deflectors, which enables us to achieve in situ measurement of energetic ions in three-dimensional (3D) space with a large field of view of 360° × 90° and a wide energy range from 50 eV to 25 keV per charge. The key performance parameters including analyzer constant, geometric factor, linear relation function between elevation angles and deflector voltages, and the energy or angular resolutions have been determined by using detailed simulations and calibration experiments on the ground. The preliminary results from on-orbit observations demonstrate that the capability of the present LEIS payload can well meet the mission requirements for sampling the low-energy ion distributions in 3D space, measuring the negative satellite surface potential, and monitoring the magnetospheric storm or substorm activities.
{"title":"A low-energy ion spectrometer with large field of view and wide energy range onboard a Chinese GEO satellite","authors":"X. Shan, Bin Miao, Z. Cao, Zhenyu Sun, Yiren Li, K. Liu, Sanbiao Qu, Xingyu Guo, Z. Su, C. Shen, Z. Pan, Xin Li, X. Hao, Xiaoping Yang, Chao Tian, Yu Jiang, Shubin Liu, Q. An, Xiangjun Chen, Yuming Wang","doi":"10.1515/astro-2022-0210","DOIUrl":"https://doi.org/10.1515/astro-2022-0210","url":null,"abstract":"Abstract A low-energy ion spectrometer (LEIS), onboard a Chinese navigation satellite in geosynchronous orbit, is one of the primary instruments for plasma detection. The LEIS is implemented by combining a top-hat electrostatic analyzer with a pair of angular scanning deflectors, which enables us to achieve in situ measurement of energetic ions in three-dimensional (3D) space with a large field of view of 360° × 90° and a wide energy range from 50 eV to 25 keV per charge. The key performance parameters including analyzer constant, geometric factor, linear relation function between elevation angles and deflector voltages, and the energy or angular resolutions have been determined by using detailed simulations and calibration experiments on the ground. The preliminary results from on-orbit observations demonstrate that the capability of the present LEIS payload can well meet the mission requirements for sampling the low-energy ion distributions in 3D space, measuring the negative satellite surface potential, and monitoring the magnetospheric storm or substorm activities.","PeriodicalId":19514,"journal":{"name":"Open Astronomy","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42482543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract We present a study of the interstellar medium parameters in star-forming complexes (SFCs) in NGC 3351, NGC 5055, and NGC 5457 galaxies. This study concludes our previous investigations of gas and dust in a number of spiral galaxies. The data for the three galaxies confirm the following. There is a tight correlation between near-infrared and far-infrared luminosities of the extragalactic SFCs. Emission at 8 μm also shows a strong correlation with the carbon monoxide emission. Atomic and molecular gas masses do not show any strong correlation with the corresponding velocity scatters; however, in NGC 5055, we see a hint of the SFC with the largest velocity scatter being located at the galaxy periphery.
{"title":"Dust and gas in star-forming complexes in NGC 3351, NGC 5055, and NGC 5457","authors":"K. Smirnova, D. Wiebe","doi":"10.1515/astro-2022-0219","DOIUrl":"https://doi.org/10.1515/astro-2022-0219","url":null,"abstract":"Abstract We present a study of the interstellar medium parameters in star-forming complexes (SFCs) in NGC 3351, NGC 5055, and NGC 5457 galaxies. This study concludes our previous investigations of gas and dust in a number of spiral galaxies. The data for the three galaxies confirm the following. There is a tight correlation between near-infrared and far-infrared luminosities of the extragalactic SFCs. Emission at 8 μm also shows a strong correlation with the carbon monoxide emission. Atomic and molecular gas masses do not show any strong correlation with the corresponding velocity scatters; however, in NGC 5055, we see a hint of the SFC with the largest velocity scatter being located at the galaxy periphery.","PeriodicalId":19514,"journal":{"name":"Open Astronomy","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43925584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Asteroid capture holds great significance in understanding the origins of asteroids, the source of life, and the exploration of planetary mineral resources. To ensure the success of a mission aimed at capturing asteroids, it is crucial to choose asteroids that can be naturally captured by Earth. This article focuses on the orbital characteristics of temporarily captured asteroids. Through a statistical simulation of asteroid motion and an analytical derivation of the Jacobian integral, the necessary conditions for the temporary capture of asteroids by Earth are calculated. The analysis results show an approximately linear relationship between the orbit elements of temporarily captured asteroids. This condition is used to screen the currently observed near-Earth asteroids and has identified asteroids such as 2006 RH120 and 2020 CD3, which have been temporarily captured by Earth. These findings provide important suggestions for future asteroid capture missions and target selection.
{"title":"Necessary condition for temporary asteroid capture","authors":"Changchun Bao, Zhijie Li, Xianyu Wang","doi":"10.1515/astro-2022-0222","DOIUrl":"https://doi.org/10.1515/astro-2022-0222","url":null,"abstract":"Abstract Asteroid capture holds great significance in understanding the origins of asteroids, the source of life, and the exploration of planetary mineral resources. To ensure the success of a mission aimed at capturing asteroids, it is crucial to choose asteroids that can be naturally captured by Earth. This article focuses on the orbital characteristics of temporarily captured asteroids. Through a statistical simulation of asteroid motion and an analytical derivation of the Jacobian integral, the necessary conditions for the temporary capture of asteroids by Earth are calculated. The analysis results show an approximately linear relationship between the orbit elements of temporarily captured asteroids. This condition is used to screen the currently observed near-Earth asteroids and has identified asteroids such as 2006 RH120 and 2020 CD3, which have been temporarily captured by Earth. These findings provide important suggestions for future asteroid capture missions and target selection.","PeriodicalId":19514,"journal":{"name":"Open Astronomy","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44394376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The majority of quasars detected at high redshifts ( z ≳ 6 zgtrsim 6 ) strongly emit ultraviolet radiation with absolute magnitudes at rest-frame M 1450 Å , A B ∼ − ( 29 – 27 ) {M}_{1450mathring{rm A} ,AB}hspace{0.33em} sim hspace{0.33em}-left(29hspace{0.1em}text{–}hspace{0.1em}27) . Some of them have high luminosities in [CII] 158 μ m 158hspace{0.33em}{rm{mu }}{rm{m}} line and in far-infrared (FIR) continuum, which leads to the expectation of a large amount of much cold dusty gas in these quasars. We have studied the relation between luminosities in the [CII] 158 μ m 158hspace{0.33em}{rm{mu }}{rm{m}} and the FIR continuum for a slightly absorbed supermassive black hole (SMBH) obscured by an ensemble of dense clouds with a low covering factor. We have found that dense clouds with a low covering factor can give sufficient luminosities in [CII] 158 μ m 158hspace{0.33em}{rm{mu }}{rm{m}} line and the underlying FIR continuum to reproduce the [CII]-FIR ratio observed in high-redshift quasars for a reasonable SMBH mass of M • ∼ 1 0 9 M ⊙ {M}_{bullet }hspace{0.33em} sim hspace{0.33em}1{0}^{9}{M}_{odot } . We note that many distant mildly/heavily obscured active galactic nuclei are to avoid detection in near-infrared (IR) wavelengths; if this is the case, blind IR/FIR surveys are needed.
在高红移(z≤6 z gtrsim 6)处探测到的大多数类星体都能强烈地发射出绝对星等为M 1450 Å、AB ～−(29 - 27)M＿1450 {}{mathring{rm A}、AB }hspace{0.33em}sim - hspace{0.33em}left (29 hspace{0.1em}text{–}hspace{0.1em} 27)的紫外辐射。其中一些类星体在[CII] 158 μ m - 158线和远红外(FIR)连续光谱中具有较高的光度，这使得这些类星体中有大量的冷尘埃气体。我们研究了一个被低覆盖因子的稠密云团遮挡的微吸收超大质量黑洞(SMBH)的[CII] 158 μ m 158的光度与FIR连续体之间的关系。我们发现，低覆盖因子的致密云可以在[CII] 158 μ m - 158线和下面的FIR连续体中提供足够的亮度，以重现在高红移类星体中观测到的[CII]-FIR比，而SMBH质量为m•～ 10 9 m⊙M＿ hspace{0.33em}{rm{mu }}{rm{m}}hspace{0.33em}{rm{mu }}{rm{m}}hspace{0.33em}{rm{mu }}{rm{m}}{}{bullet}hspace{0.33em}sim 10^9M＿ hspace{0.33em}{}{}{}{odot。我们注意到，许多遥远的活动星系核都是为了避免近红外(IR)波长的探测;如果是这样的话，就需要进行盲目IR/FIR调查。}
{"title":"Far-IR emission from bright high-redshift quasars","authors":"E. Vasiliev, Y. Shchekinov, B. Nath","doi":"10.1515/astro-2022-0218","DOIUrl":"https://doi.org/10.1515/astro-2022-0218","url":null,"abstract":"Abstract The majority of quasars detected at high redshifts ( z ≳ 6 zgtrsim 6 ) strongly emit ultraviolet radiation with absolute magnitudes at rest-frame M 1450 Å , A B ∼ − ( 29 – 27 ) {M}_{1450mathring{rm A} ,AB}hspace{0.33em} sim hspace{0.33em}-left(29hspace{0.1em}text{–}hspace{0.1em}27) . Some of them have high luminosities in [CII] 158 μ m 158hspace{0.33em}{rm{mu }}{rm{m}} line and in far-infrared (FIR) continuum, which leads to the expectation of a large amount of much cold dusty gas in these quasars. We have studied the relation between luminosities in the [CII] 158 μ m 158hspace{0.33em}{rm{mu }}{rm{m}} and the FIR continuum for a slightly absorbed supermassive black hole (SMBH) obscured by an ensemble of dense clouds with a low covering factor. We have found that dense clouds with a low covering factor can give sufficient luminosities in [CII] 158 μ m 158hspace{0.33em}{rm{mu }}{rm{m}} line and the underlying FIR continuum to reproduce the [CII]-FIR ratio observed in high-redshift quasars for a reasonable SMBH mass of M • ∼ 1 0 9 M ⊙ {M}_{bullet }hspace{0.33em} sim hspace{0.33em}1{0}^{9}{M}_{odot } . We note that many distant mildly/heavily obscured active galactic nuclei are to avoid detection in near-infrared (IR) wavelengths; if this is the case, blind IR/FIR surveys are needed.","PeriodicalId":19514,"journal":{"name":"Open Astronomy","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42861555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Most of the satellites of the BeiDou navigation system work in geostationary orbit (GEO) and medium earth orbit (MEO), where the space plasma environment can make a severe impact on spacecraft. To measure the parameters of the plasma environment in GEO and MEO orbital space and to improve the design of the environmental adaptability of the satellites based on in situ probe data, a 2π-solid-angle omnidirectional field-of-view plasma detector was investigated and tested. The overall system design and detailed design of the structure and electric system were implemented. Then tests and verification were carried out to validate the reliability and capability of the detector. The detector can supply accurate in situ data of the plasma environment and be used to investigate the space plasma environment and its effects.
{"title":"Design and validation of a space plasma environment detector for BeiDou navigation satellite","authors":"Zhenyu Tang, Qiongying Ren, Hao Li, Yuchuan Peng, Zhong Peng, Qinghai Liu, Junfeng Wang, Ye-nan Liu, Lili Ge, Da Wu, Hua Zhao","doi":"10.1515/astro-2022-0212","DOIUrl":"https://doi.org/10.1515/astro-2022-0212","url":null,"abstract":"Abstract Most of the satellites of the BeiDou navigation system work in geostationary orbit (GEO) and medium earth orbit (MEO), where the space plasma environment can make a severe impact on spacecraft. To measure the parameters of the plasma environment in GEO and MEO orbital space and to improve the design of the environmental adaptability of the satellites based on in situ probe data, a 2π-solid-angle omnidirectional field-of-view plasma detector was investigated and tested. The overall system design and detailed design of the structure and electric system were implemented. Then tests and verification were carried out to validate the reliability and capability of the detector. The detector can supply accurate in situ data of the plasma environment and be used to investigate the space plasma environment and its effects.","PeriodicalId":19514,"journal":{"name":"Open Astronomy","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44390252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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