GB/T 41457-2022 English PDF

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GB/T 41457-2022: Space environment - Solar proton fluences at GEO and guideline for selection of confidence level in statistical model of solar proton fluencies
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Basic data

Standard ID: GB/T 41457-2022 (GB/T41457-2022)
Description (Translated English): Space environment - Solar proton fluences at GEO and guideline for selection of confidence level in statistical model of solar proton fluencies
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: V06
Word Count Estimation: 13,150
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41457-2022: Space environment - Solar proton fluences at GEO and guideline for selection of confidence level in statistical model of solar proton fluencies

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Space environment -- Solar proton fluences at GEO and guideline for selection of confidence level in statistical model of solar proton fluencies ICS 49.020 CCSV06 National Standards of People's Republic of China space environment geosynchronous orbit sun proton A guide for choosing the fluence and its statistical model confidence Published on 2022-04-15 2022-11-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Abbreviations 2 5 Method Principle 2 5.1 Cumulative fluence 2 5.2 Confidence 3 5.3 High-energy proton data observed in GEO orbits 4 5.4 Other Notes 4 6 Confidence selection guide for statistical models of solar proton fluence 4 Appendix A (informative) Technical differences between this document and ISO 12208.2015 and their reasons5 Appendix B (Informative) Solar Proton Flux Prediction and Confidence Selection Example 6 B.1 Background Information 6 B.2 Degradation of solar cell performance due to radiation 6 B.3 GEO solar cell degradation forecast6 B.4 Estimated Example 7 Reference 10

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document is modified and adopted ISO 12208.2015 "Space system space environment (artificial and natural) long-term observation quality in geosynchronous orbit Guidelines for choosing confidence levels for statistical models of sub-fluence and solar proton fluence. Compared with ISO 12208.2015, this document has the following structural adjustments. --- Added "2 Normative Reference Documents"; --- Added "3.6 relative damage coefficient" in "Terms and Definitions". Compared with ISO 12208.2015, this document has many technical differences. In the outer margins of the clauses involved, vertical A single line (︱) is marked. See Appendix A for a list of these technical differences and their reasons. The following editorial changes have been made to this document. --- Modify the title of the document to adapt to the Chinese, and change it to "Space Environment Geosynchronous Orbit Solar Proton Flux and Its Statistics Model Confidence Selection Guide; --- Reorganization and identification of references; --- The title of Appendix B has been rewritten; --- Modify "AE-8" in B.3.1 to "AE-9". Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by the Chinese Academy of Sciences. This document is under the jurisdiction of the National Standardization Technical Committee for Aerospace Technology and Its Application (SAC/TC425). This document was drafted by. Beijing Satellite Environmental Engineering Research Institute, Shenzhen Xingdi Twin Technology Co., Ltd., Harbin Institute of Technology, China Science and Technology Co., Ltd. National Space Science Center of the Academy, China Aerospace Standardization Institute, Beijing Aircraft General Design Department, Harbin Institute of Technology (Shenzhen), Shanghai Institute of Aerospace Systems Engineering, Yangzhou University. The main drafters of this document. Shen Zicai, Mao Xin, Li Xingji, Wang Shijin, Li Changhong, Xu Dongyan, Tian Dongbo, Huyanqi, Wang Hongji, Fu Yulei, Zuo Pingbing, Xue Yuxiong, Jia Ruijin, Zhang Kun. space environment geosynchronous orbit sun proton A guide for choosing the fluence and its statistical model confidence

1 Scope

This document presents the method and options for estimating the long-term (solar activity cycle greater than 11 years) fluence of solar protons in geosynchronous orbit (GEO). Guidelines for choosing confidence levels for solar proton fluence models. This document applies to performance degradation estimates of solar cells. Charge coupled device (CCD), image sensor (APS) and other optoelectronic devices The performance degradation estimation is used for reference.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 32452 Spacecraft Space Environment Terminology

3 Terms and Definitions

The terms and definitions defined in GB/T 32452 and the following apply to this document. 3.1 confidence level Confidence level The confidence level used for cumulative fluence estimates. 3.2 extremely rare event extremelyrareevent The solar energy proton (SEP) event occurs only once in a solar cycle, and the mass in a complete solar cycle The sub-fluence is mainly derived from this SEP event. Note. SEP events that occurred in August 1972, October 1989 or July.2000 are extremely rare events. 3.3 flux The number of particles passing through a specific area per unit time. 3.4 fluence Time integral of flux. 3.5 n-year fluence The fluence for the n-year mission period. ......

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