ISO 10784-2:2011

Space systems — Early operations — Part 2: Initialization plan

A general definition of initialization is that it begins at separation of the spacecraft (SC) from the launcher. In some cases, a more exact definition will be that initialization begins in flight, upon planned change in mode or state of the SC from the launch configuration. Commissioning is completed when the SC, including its payload, is certified for initial mission operations. Prior to certification for mission operations, the SC is described as a test article in the three parts of ISO 10784. ISO 10784 does not include a requirement for contingency plans, but does include a statement of the need for contingency planning. ISO 10784-2:2011 provides SC manufacturers and operators with a specific form and format to write spacecraft initialization plans required to configure and verify the SC to perform normal mission operations. Since the SC is considered a test article at this phase of its operational life, ISO 17566 is used as a normative reference in constructing the initialization plan. It provides SC manufacturers, operators and other stakeholders with a common language and form to verify and document spacecraft initialization prior to normal SC mission operations.

Systèmes spatiaux — Opérations initiales — Partie 2: Plan d'initialisation

General Information

• Status: Published
• Publication Date: 28-Nov-2011
• ICS: 49.140 - Space systems and operations
• Technical Committee: ISO/TC 20/SC 14 - Space systems and operations
• Drafting Committee: ISO/TC 20/SC 14/WG 2 - System requirements, verification and validation, interfaces, integration, and test
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 14-Jun-2022

Standards Content (Sample)

INTERNATIONAL  ISO
STANDARD 10784-2
First edition
2011-12-01
Space systems — Early operations —
Part 2:
Initialization plan
Systèmes spatiaux — Opérations initiales —
Partie 2: Plan d’initialisation
Reference number
ISO 10784-2:2011(E)
©
 ISO 2011

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ISO 10784-2:2011(E)
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©  ISO 2011
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ii © ISO 2011 – All rights reserved

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ISO 10784-2:2011(E)
Contents Page
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 2
4 Initialization plan . 2
4.1 Introduction clause of the initialization plan. 2
4.2 Referenced documentation . 2
4.3 Nomenclature . 3
4.4 Purpose of spacecraft initialization plan . 4
4.5 Plan description . 4
4.6 Initialization configuration requirements . 5
4.7 Ground-system requirements . 6
4.8 Procedural initialization requirements . 7
4.9 Spacecraft initialization team . 8
4.10 Detailed procedural checklists . 9
Bibliography . 11
© ISO 2011 – All rights reserved  iii

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ISO 10784-2:2011(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 10784-2 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee
SC 14, Space systems and operations.
ISO 10784 consists of the following parts, under the general title Space systems — Early operations:
—  Part 1: Spacecraft initialization and commissioning
—  Part 2: Initialization plan
—  Part 3: Commissioning report
iv © ISO 2011 – All rights reserved

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ISO 10784-2:2011(E)
Introduction
The three parts of ISO 10784 provide spacecraft (SC) manufacturers and operators with a specific form and
format for writing SC initialization plans and commissioning reports required to configure and verify the SC
to perform normal mission operations. Often, SC manufacturers and operators have defined these plans
and reports uniquely for each programme, or regional, national and corporate organizations have unique
initialization plans and commissioning reports. The three parts of ISO 10784 aim at establishing a common
language and form for SC stakeholders. The use of one form and format will simplify stakeholder understanding
of initialization and commissioning activities.
© ISO 2011 – All rights reserved  v

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INTERNATIONAL STANDARD ISO 10784-2:2011(E)
Space systems — Early operations —
Part 2:
Initialization plan
1 Scope
A general definition of initialization is that it begins at separation of the spacecraft (SC) from the launcher. In
some cases, a more exact definition will be that initialization begins in flight, upon planned change in mode or
state of the SC from the launch configuration. Commissioning is completed when the SC, including its payload,
is certified for initial mission operations. Prior to certification for mission operations, the SC is described as a
test article in the three parts of ISO 10784. ISO 10784 does not include a requirement for contingency plans,
but does include a statement of the need for contingency planning.
This part of ISO 10784 provides SC manufacturers and operators with a specific form and format to write
spacecraft initialization plans required to configure and verify the SC to perform normal mission operations.
Since the SC is considered a test article at this phase of its operational life, ISO 17566 is used as a normative
reference in constructing the initialization plan. It provides SC manufacturers, operators and other stakeholders
with a common language and form to verify and document spacecraft initialization prior to normal SC mission
operations.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 10784-1, Space systems — Early operations — Part 1: Spacecraft initialization and commissioning
ISO 17566, Space systems — General test documentation
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
commissioning
certification of a spacecraft as ready for mission operations
3.1.2
early operations
period from initialization to commissioning for mission operations
3.1.3
initialization
initial functional and operational checkout of a spacecraft following separation from the launch vehicle
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ISO 10784-2:2011(E)
3.2 Abbreviated terms
LV launch vehicle
PL payload
SC spacecraft
4 Initialization plan
4.1 Introduction clause of the initialization plan
4.1.1 General
The introduction clause is a preliminary element which shall be used to give general information or commentary
about the technical content of the initialization plan and about the reasons prompting its preparation. Because
the spacecraft is not yet certified for operations, it is described as a test article. The introduction shall include
a brief description of initialization and its objectives. It shall not contain requirements.
4.1.2 Objective
The objective subclause shall specify the desired initialization outcome in terms of SC certification, acceptance
or other development. The objective may reference other clauses or subclauses which appear later in the
document.
4.1.3 Scope
The scope subclause shall define, without ambiguity, the SC, the range of testing covered by the plan and the
applicability of the plan in relation to fulfilling SC initialization objectives.
The initialization plan document shall provide input information for the generation of overall commissioning
objectives. The initialization plan document may be a part of the overall spacecraft programme test plan.
4.1.4 Background
The background subclause is optional. If included, it may discuss the background of the spacecraft programme
if that information benefits the overall understanding of the initialization plan.
4.2 Referenced documentation
4.2.1 General
This clause shall provide a list of the documents to which reference is made in the initialization plan.
Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption
has been obtained.
4.2.2 Normative references
Normative references are published standards and specifications that provide requirements or constraints for
initialization. The required format for the list of normative references is shown below.
2 © ISO 2011 – All rights reserved

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ISO 10784-2:2011(E)
Document number Document description Revision level/Release date


4.2.3 Applicable references
Applicable references are programme-related documents that provide requirements or constraints for
initialization. The required format for the list of applicable references is shown below.
Document number Document description Revision level/Release date


4.2.4 Informative references
Informative references are documents included for information only. Such references amplify or clarify the
document content but do not contain requirements applicable to the initialization plan. They can be standards,
other publications or drawings, for instance. The required format for the list of informative references is shown
below.
Document number Document description Revision level/Release date


4.3 Nomenclature
4.3.1 Terms and definitions
The terms and definitions subclause shall provide the definitions necessary for the understanding of certain
terms used in the initialization plan. The terms and definitions subclause shall include only those items specific
to the initialization plan concerned. In some cases, a project dictionary or glossary may be referenced.
4.3.2 Symbols
The symbols subclause shall provide a list of the symbols necessary for the understanding of the initialization
plan.
Unless there is a need to list symbols in a specific order to reflect technical criteria, all symbols should be listed
in alphabetical order.
The symbols subclause shall include only those items specific to the initialization plan concerned.
4.3.3 Acronyms
The acronyms subclause shall provide a list of the acronyms necessary for the understanding of the initialization
plan.
The acronyms subclause shall include only those items specific to the initialization plan concerned.
4.3.4 Abbreviated terms
The abbreviated terms subclause shall define the abbreviated terms used in the initialization report.
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ISO 10784-2:2011(E)
4.4 Purpose of spacecraft initialization plan
4.4.1 Overall description
This clause shall describe the overall process as it applies to the scope of the document concerned and how it
relates to the initialization strategy matrix.
4.4.2 Initialization strategy matrix
The initialization strategy matrix (see ISO 10784-1) shall specify the minimum set of operational requirements
to be verified within the plan and the verification strategies that will be employed to satisfy these requirements.
This matrix
...