GB/T 32452-2025Space terminology - Space environment (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. This document replaces GB/T 32452-2015 "Terminology for Spacecraft Space Environment". Compared with GB/T 32452-2015, the only changes are structural adjustments. Aside from editorial changes, the main technical changes are as follows:

---Added sections on space (see 3.1.1), the solar activity cycle (see 3.1.2), the solar atmosphere (see 3.1.3), the photosphere (see 3.1.4), and the chromosphere (see 3.1.5). 3.1.5), the corona (see 3.1.6), solar radio bursts (see 3.1.8), solar active regions (see 3.1.10), coronal holes (see 3.1.11), and the corona High-speed flow through holes (see 3.1.12), solar X-ray flares (see 3.1.14), Earth-Sun space (see 3.1.20), heliosphere (see 3.1.22), Artificial environment (see 3.1.27), space vacuum environment (see 3.1.28), thermal radiation environment (see 3.1.30), spacecraft contamination environment (see 3.1.28). 3.1.34), induced environment (see 3.1.35), gravitational waves (see 3.2.5), geomagnetic pulsations (see 3.3.12), planetary magnetic fields (see 3.3.13), Ozone layer (see 3.5.6), gravitational waves (see 3.5.14), ionospheric irregularities (see 3.6.13), ionospheric irregularities (see...). 3.6.13), ionospheric inhomogeneities (see 3.6.13), magnetotail (see 3.7.12), magnetosheath (see 3.7.13), magnetic cloud (see 3.7.14), corona Matter ejection (see 3.7.15), thermal plasma (see 3.7.7), cold plasma (see 3.7.8), inner zone (see 3.8.2), outer zone (see 3.7.15). 3.8.3), artificial radiation belts (see 3.8.5), solar cosmic rays (see 3.8.12), electron enhancement events (see 3.8.14), galactic cosmology Rays (see 3.8.15), Phobos descent (see 3.8.17), energy particles (see 3.8.18), tiny space debris (see 3.9.2), space Debris flux (see 3.9.3), impact craters (see 3.11.3), lava pipes (see 3.11.4), planetary radiation belts (see 3.11.11), planetary large... Atmosphere (see 3.11.12), asteroids (see 3.11.13), planetary rings (see 3.11.15), planetary magnetospheres (see 3.11.16), small bodies (see 3.11.17) and 50 other terms and definitions;

---Changes have been made to Earth space (see 3.1.15,

3.1.3 in the.2015 version), near space (see 3.1.16,

3.1.2 in the.2015 version), and near Earth. Space (see 3.1.17,

3.1.4 in the.2015 edition), distant space (see 3.1.18,

3.1.5 in the.2015 edition), Earth-Moon space (see...) 3.1.19 (see

3.1.6 in the.2015 edition), deep space (see

3.1.21 in the.2015 edition of 3.1.7), planetary space (see

3.1.23 in the.2015 edition of 3.1.6). (See section

3.1.8 of the.2015 edition), celestial gravitational fields (see section

3.2.1 of the.2015 edition), and weightless environments (see section

3.2.2 of the.2015 edition). Earth's magnetosphere (see 3.3.8,

1 Scope

GB/T 32452-2025 is the Chinese national standard covering the vocabulary of the space environment - the radiation belts and the solar particle events, the plasma and the charging it causes, the atomic oxygen and the micrometeoroids and debris, and the terms for the effects each has on a spacecraft. At 31,000 words. Issued on 5 October 2025, it has been in force since 5 October 2025, replacing GB/T 32452-2015.

This document defines the general fundamentals of space environment, space environment models, and space-related aspects involved in the field of spacecraft space environment and its effects. Terminology and definitions for environmental forecasting, space environment effects, space environment detection, and ground simulation experiments of space environment and effects. This document applies to the design, launch, and operation of spacecraft and space environment-related fields, including satellites, spacecraft, space stations, and space probes. This approach can also be adopted in fields related to the effects of the space environment, such as launch vehicles.

2 Normative references

This document has no normative references.