BS ISO 14950:2004

Foreword
0 Introduction
  0.1 Spacecraft operation
  0.2 Spacecraft operability
  0.3 Conventions
  0.4 Guidelines for applicability
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviated terms
5 Autonomy levels
6 General requirements
  6.1 Observability
  6.2 Commandability
  6.3 Compatibility
  6.4 Security
  6.5 Safety
  6.6 Flexibility
  6.7 Efficiency
  6.8 Testability
  6.9 Applicability matrix
7 Detailed requirements
  7.1 Spacecraft observability requirements
  7.2 Spacecraft commandability requirements
  7.3 Memory management
  7.4 On-board processing functions
  7.5 Equipment/subsystem-specific requirements
Annex A (informative) Mission constants

Specifies the essential properties pertaining to the operation of unmanned spacecraft and defines requirements and guidelines for spacecraft on-board functions in order to enable a specified ground segment to operate the spacecraft in any nominal or predefined contingency situation.

This International Standard defines the essential properties pertaining to the operation of unmanned spacecraft and defines requirements and guidelines for spacecraft on-board functions in order to enable a specified ground segment to operate the spacecraft in any nominal or predefined contingency situation.