ISO 17401:2023

INTERNATIONAL ISO
STANDARD 17401
Second edition
2023-05
Space systems — Spacecraft interface
requirements document for launch
vehicle services
Systèmes spatiaux — Document d'exigences d'interface du véhicule
spatial vis-à-vis du service de lancement
Reference number
© ISO 2023
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Published in Switzerland
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Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 1
4 Spacecraft mission description .2
4.1 Mission description . 2
4.2 SC description (optional) . 2
5 Mechanical interfaces. 2
5.1 Mechanical configuration . 2
5.2 SC fundamental frequencies . 2
5.3 Usable volume. 3
5.4 Spacecraft (or SC adapter) mechanical interface . 3
5.5 Connectors and microswitches (SC side of the interface) . 3
5.6 Purges and fluid connection interface . 4
5.7 Encapsulated spacecraft access . 4
6 Electrical interfaces .4
6.1 Umbilical wiring diagram . 4
6.2 Umbilical connectors . 4
6.3 Umbilical wiring links (for each connector pin) . 5
6.4 Electrical commands dedicated to spacecraft . 5
6.4.1 Pyrotechnic commands . . 5
6.4.2 Dry loop commands . 6
6.4.3 Electrical commands . 6
6.5 Separation status transmission . 7
6.6 SC in-flight telemetry . 7
6.7 Power supply required from LV . 7
6.8 Earth potential continuity . 7
7 Radio-frequency and electromagnetic interface . 8
7.1 Characteristics of radio-electrical systems . 8
7.2 RF telemetry and command link . 9
7.2.1 SC RF-link definition for ground operations . 9
7.2.2 SC antenna coordinates . 9
7.2.3 RF-link implementation . 9
7.2.4 RF-link budget . 9
7.2.5 Base band signal characteristics . 10
8 Spacecraft mission characteristics .11
8.1 SC input data for mission analyses . 11
8.1.1 Mass and inertia characteristics . 11
8.1.2 Sloshing masses (pendulum-type) . 11
8.1.3 SC mission constraints (when applicable) .12
8.2 SC orbit parameters (with tolerances) .12
8.3 Launch window .13
8.3.1 Launch window constraints (when applicable) .13
8.3.2 Preferred window .13
8.4 SC pointing and separation . . .13
9 Environment requirements .13
9.1 General .13
9.2 Mechanical environment .13
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9.3 Thermal environment . 14
9.4 Static pressure . 14
9.5 Contamination and cleanliness control . 15
9.6 Radio frequency and electromagnetic environment . 15
9.7 Environment monitoring . 15
9.8 Exposure to sun . 15
10 SC Development and test programme .15
10.1 Mechanical environment qualification tests . 15
10.2 LV/SC compatibility tests . 16
11 Launch range operations: facilities and support requirements .16
11.1 General logistics requirements . 16
11.1.1 General . 16
11.1.2 SC container and ground support equipment physical envelopes . 16
11.1.3 Material handling equipment . . 17
11.1.4 Electrical power for SC and ground station . 17
11.1.5 Umbilical lines and ground lines . 17
11.1.6 Gas and fluid lines . 17
11.1.7 Clean room . 18
11.1.8 Environmental controls for SC and ground station . 18
11.1.9 Clothing (safety and cleanroom) . 18
11.1.10 Area . 18
11.1.11 Storage (non-hazardous items) . 19
11.1.12 SC pre-launch activities calendar . 19
11.1.13 Special technical support equipment . 19
11.1.14 Other . 19
11.2 Specific requirements for solid propellant motor facilities (Y/N, to specify) .
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