EN 16603-10-04:2021

SLOVENSKI STANDARD
01-november-2021
Nadomešča:
SIST EN 16603-10-04:2015
Vesoljska tehnika - Okolje v vesolju
Space engineering - Space environment
Raumfahrttechnik - Raumfahrtumweltbedingungen
Ingénierie spatiale - Environnement spatial
Ta slovenski standard je istoveten z: EN 16603-10-04:2021
ICS:
49.140 Vesoljski sistemi in operacije Space systems and
operations
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 16603-10-04
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2021
ICS 49.140
Supersedes EN 16603-10-04:2015
English version
Space engineering - Space environment
Ingénierie spatiale - Environnement spatial Raumfahrttechnik - Raumfahrtumweltbedingungen
This European Standard was approved by CEN on 23 June 2021.

CEN and CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical
references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to
any CEN and CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN and CENELEC member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN and CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium,
Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia,
Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

CEN-CENELEC Management Centre:
Rue de la Science 23, B-1040 Brussels
© 2021 CEN/CENELEC All rights of exploitation in any form and by any means Ref. No. EN 16603-10-04:2021 E
reserved worldwide for CEN national Members and for
CENELEC Members.
Table of contents
European Foreword . 13
Introduction . 14
1 Scope . 15
2 Normative references . 16
3 Terms, definitions and abbreviated terms . 19
3.1 Terms defined in other standards .19
3.2 Terms specific to the present standard .19
3.3 Abbreviated terms. 27
4 Gravity . 29
4.1 Introduction and description .29
4.1.1 Introduction .29
4.1.2 Gravity model formulation .29
4.1.3 Third body gravitation .31
4.1.4 Tidal effects.31
4.2 Requirements for model selection and application . 31
4.2.1 General requirements for gravity models . 31
4.2.2 Selection and application of gravity models . 32
5 Geomagnetic fields . 33
5.1 Introduction and description .33
5.1.1 The geomagnetic field and its sources . 33
5.1.2 The internal field .33
5.1.3 External field: ionospheric components . 33
5.1.4 External magnetic field: magnetospheric components . 34
5.1.5 Models of the internal and external geomagnetic fields . 34
5.2 Requirements for model selection and application . 35
5.2.1 The internal field .35
5.2.2 The external field .36
5.3 Tailoring guidelines .37
6 Natural electromagnetic radiation and indices . 38
6.1 Introduction and description .38
6.1.1 Introduction .38
6.1.2 Electromagnetic radiation and indices . 38
6.2 Requirements .41
6.2.1 Electromagnetic radiation . 41
6.2.2 Reference index values .41
6.2.3 Tailoring guidelines .42
6.3 Tables .42
7 Neutral atmospheres . 44
7.1 Introduction and description .44
7.1.1 Introduction .44
7.1.2 Structure of the Earth’s atmosphere . 44
7.1.3 Models of the Earth’s atmosphere . 44
7.1.4 Wind model of the Earth’s homosphere and heterosphere . 45
7.2 Requirements for atmosphere and wind model selection . 45
7.2.1 Earth atmosphere .45
7.2.2 Earth wind model .47
7.2.3 Models of the atmospheres of the planets and their satellites . 47
8 Plasmas . 48
8.1 Introduction and description .48
8.1.1 Introduction .48
8.1.2 Ionosphere .48
8.1.3 Plasmasphere .49
8.1.4 Outer magnetosphere .49
8.1.5 Solar wind .50
8.1.6 Magnetosheath .50
8.1.7 Magnetotail and L2.50
8.1.8 Planetary environments . 51
8.1.9 Induced environments .51
8.2 Requirements for model selection and application . 51
8.2.1 General . 51
8.2.2 Ionosphere .52
8.2.3 Auroral charging environment .52
8.2.4 Plasmasphere .53
8.2.5 Outer magnetosphere .54
8.2.6 The solar wind (interplanetary environment). 54
8.2.7 Other plasma environments .54
8.2.8 Tables .55
9 Energetic particle radiation . 56
9.1 Introduction and description .56
9.1.1 Introduction .56
9.1.2 Overview of energetic particle radiation environment and effects . 56
9.2 Requirements for energetic particle radiation environments . 59
9.2.1 Trapped radiation belt fluxes .59
9.2.2 Solar particle event models .61
9.2.3 Cosmic ray models .6 3
9.2.4 Geomagnetic shielding .63
9.2.5 Neutrons .63
9.2.6 <> .63
9.2.7 L2 and the Deep Magnetotail Environment . 63
9.3 Preparation of a radiation environment specification . 63
9.4 Tables .65
10 Space debris and meteoroids . 66
10.1 Introduction and description .66
10.1.1 The particulate environment in near Earth space . 66
10.1.2 Space debris .66
10.1.3 Meteoroids .67
10.2 Requirements for impact risk assessment and model selection . 67
10.2.1 General requirements for meteoroids and space debris . 67
10.2.2 Model selection and application . 67
10.2.3 <> .70
10.2.4 The meteoroid model .71
10.2.5 Impact risk assessment .71
10.2.6 Margins . 72
11 Contamination . 73
11.1 Introduction and description .73
11.1.1 Introduction .73
11.1.2 Description of molecular contamination . 73
11.1.3 Transport mechanisms .74
11.1.4 Description of particulate contamination . 74
11.1.5 Transport mechanisms .74
11.2 Requirements for on-orbit contamination assessment . 75
Annex A (normative) Natural electromagnetic radiation and indices . 76
A.1 Solar activity values for complete solar cycle . 76
A.2 Tables .77
Annex B (normative) Energetic particle radiation . 81
B.1 Historical dates of solar maximum and minimum . 81
B.2 GEO model (IGE-2006) .81
B.3 ONERA MEOv2 model .81
B.4 FLUMIC model .82
B.4.1 Overview . 82
B.4.2 Outer belt (L>2,5 Re) .82
B.4.3 Inner belt (L<2,5 Re) .83
B.5 NASA worst case GEO spectrum .83
B.6 ESP solar proton model specification.84
B.7 Solar ions model . 84
B.8 Geomagnetic shiel
...