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GB/T 45740-2025: Space debris collision warning technical requirements
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Space debris collision warning technical requirements
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GB/T 45740-2025
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Basic data | Standard ID | GB/T 45740-2025 (GB/T45740-2025) | | Description (Translated English) | Space debris collision warning technical requirements | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | V70 | | Classification of International Standard | 07.040 | | Word Count Estimation | 22,274 | | Date of Issue | 2025-05-30 | | Date of Implementation | 2025-09-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45740-2025: Space debris collision warning technical requirements---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.
ICS 07.040
CCSV70
National Standard of the People's Republic of China
Technical requirements for space debris collision warning
Released on 2025-05-30
2025-09-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Collision Warning Technology Process 2
4.1 Emitting Collision Warning 2
4.2 On-orbit collision warning 4
5 Requirements for the main early warning process 6
5.1 Space debris dynamics data preparation 6
5.2 Track Screening 6
5.3 Conjunction Relationship Prediction 7
5.4 Collision Probability Calculation 7
5.5 Determination of collision risk level 7
5.6 Encryption monitoring requirements formulation 7
5.7 Dangerous intersection warning report released 7
5.8 Avoidance plan formulation 8
5.9 Avoidance Effect Evaluation 8
5.10 Design orbit element conversion 8
5.11 Launch Window Safety Analysis 8
5.12 Post-orbital collision risk assessment 8
Appendix A (Informative) Orbit prediction error calculation method 9
A.1 Overview 9
A.2 Statistical methods 9
A.3 Theoretical methods 9
Appendix B (Informative) Track Screening Method 10
B.1 Overview 10
B.2 Height screening 10
B.3 Geometric screening 10
B.4 Time screening 10
Appendix C (Informative) Orbital Conjunction Calculation Method 12
C.1 Overview 12
C.2 Variable Step Size Method12
C.3 Fixed-step method12
Appendix D (Informative) Collision Probability Calculation Method 13
D.1 Intersection reference strip 13
D.2 Collision Probability 13
D.3 Collision probability calculation method 13
Appendix E (Informative) Collision risk threshold determination method 15
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 for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed and coordinated by the National Technical Committee for Standardization of Aerospace Technology and Its Applications (SAC/TC425).
The drafting units of this document are. National Astronomical Observatory of the Chinese Academy of Sciences, China Institute of Space Standardization, and Beijing Institute of Tracking and Communication Technology.
The main drafters of this document are. Liu Jing, Yang Xu, Li Yang, Li David, Gan Qingbo, Zhang Yao, Yu Youcheng, Wu Xiangbin, Cheng Haowen, Jiang Hai, Quan Haofang,
Wang Kunpeng and Zhao Nanying.
Technical requirements for space debris collision warning
1 Scope
This document establishes the technical process of space debris collision warning, specifies the specific requirements and main models of each process link, and gives
Related instructions.
This document applies to collision warnings for spacecraft, launch vehicles and space debris that can be monitored and catalogued, including launch collision warnings
and on-orbit collision warning.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 43223-2023 Space object orbit data specification
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
space debris spacedebris
All non-functional man-made objects in Earth orbit or re-entering the Earth's atmosphere.
Note. Includes fragments and components of man-made objects.
3.2
cataloging
The process of determining and registering orbital parameters and other information about space objects from observations and other data sources.
3.3
Before the launch of spacecraft and launch vehicles, the collision risk between the launch vehicle and other space debris in the early stage after takeoff and orbit entry is predicted.
and assessment, and the process of issuing alerts.
3.4
on-orbit collision warning
The process of predicting and evaluating the risk of spacecraft on-orbit collision and issuing alerts.
3.5
orbitalconjunction
The process of two space objects in orbit coming into close proximity.
3.6
The process of predicting the specific parameters of two space objects when their orbits meet and assessing the risk of a collision.
Note. Specific parameters include collision probability, intersection distance, intersection angle, etc.
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