ISO 26143:2013

INTERNATIONAL ISO
STANDARD 26143
Second edition
2013-06-01

Space data and information transfer
systems — Space link extension (SLE) —
Return operational control fields service
Systèmes de transfert des données et informations spatiales —
Extension de liaisons spatiales (SLE) — Service des champs de
contrôle de retour opérationnel




Reference number
ISO 26143:2013(E)
©
ISO 2013

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ISO 26143:2013(E)

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ISO 26143:2013(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 26143 was prepared by the Consultative Committee for Space Data Systems (CCSDS) (as
CCSDS 911.5-B-2, January 2010) and was adopted (without modifications except those stated in Clause 2 of
this International Standard) by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee
SC 13, Space data and information transfer systems.
This second edition cancels and replaces the first edition (ISO 26143:2007), which has been technically
revised.

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INTERNATIONAL STANDARD ISO 26143:2013(E)

Space data and information transfer systems — Space link
extension (SLE) — Return operational control fields service
1 Scope
1.1 This International Standard defines the space link extension (SLE) return operational control fields
(ROCF) service in accordance with the SLE Reference Model (CCSDS 910.4-B-2). The ROCF service is an
SLE transfer service that delivers to a mission user all operational control fields from one master channel or
one virtual channel.
1.2 This International Standard defines the ROCF service in terms of
a) the operations necessary to provide the service,
b) the parameter data associated with each operation,
c) the behaviors that result from the invocation of each operation, and
d) the relationship between, and the valid sequence of, the operations and resulting behaviors.
1.3 It does not specify
a) individual implementations or products,
b) the implementation of entities or interfaces within real systems,
c) the methods or technologies required to acquire telemetry frames from signals received from a
spacecraft,
d) the methods or technologies required to provide a suitable environment for communications, or
e) the management activities required to schedule, configure, and control the ROCF service.
1.4 The scope and field of application are furthermore detailed in subclauses 1.1, 1.2 and 1.3 of the
enclosed CCSDS publication.
2 Requirements
Requirements are the technical recommendations made in the following publication (reproduced on the
following pages), which is adopted as an International Standard:
CCSDS 911.5-B-2, January 2010, Space link extension — Return operational control fields service
specification.
For the purposes of international standardization, the modifications outlined below shall apply to the specific
clauses and paragraphs of publication CCSDS 911.5-B-2.
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ISO 26143:2013(E)
Pages i to vi
This part is information which is relevant to the CCSDS publication only.
Pages 1-14 to 1-15
Add the following information to the reference indicated:
[1] Document CCSDS 910.4-B-2, October 2005, is equivalent to ISO 15396:2007.
1)
[2] Document CCSDS 131.0-B-1, September 2003, is equivalent to ISO 22641:2005.
[3] Document CCSDS 132.0-B-1, September 2003, is equivalent to ISO 22645:2005.
2)
[4] Document CCSDS 232.0-B-1, September 2003, is equivalent to ISO 22664:2005.
[5] Document CCSDS 732.0-B-2, July 2006, is equivalent to ISO 22666:2007.
[6] Document CCSDS 133.0-B-1, September 2003, is equivalent to ISO 22646:2005.
3)
[7] Document CCSDS 301.0-B-3, January 2002, is equivalent to ISO 11104:2003.
[9] ISO/IEC 8824-1:2002 has been cancelled and replaced by ISO/IEC 8824-1:2008.
Page E-1
Add the following information to the reference indicated:
[E5] Document CCSDS 202.0-B-3, June 2001, is equivalent to ISO 12172:2003.
[E7] Document CCSDS 913.1-B-1, September 2008, is equivalent to ISO 18440:2013.
3 Revision of publication CCSDS 911.5-B-2
It has been agreed with the Consultative Committee for Space Data Systems that Subcommittee
ISO/TC 20/SC 13 will be consulted in the event of any revision or amendment of publication CCSDS 911.5-
B-2. To this end, NASA will act as a liaison body between CCSDS and ISO.


1)
ISO 22641:2005 has been cancelled and replaced by ISO 22641:2012.
2)
ISO 22664:2005 has been cancelled and replaced by ISO 22641:2013.
3)
ISO 11104:2003 has been cancelled and replaced by ISO 11104:2011.
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ISO 26143:2013(E)

Recommendation for Space Data System Standards
SPACE LINK EXTENSION—
RETURN OPERATIONAL
CONTROL FIELDS SERVICE
SPECIFICATION
RECOMMENDED STANDARD
CCSDS 911.5-B-2
BLUE BOOK
January 2010
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ISO 26143:2013(E)
(Blank page)
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ISO 26143:2013(E)
CCSDS RECOMMENDED STANDARD FOR SLE ROCF SERVICE
AUTHORITY



Issue: Recommended Standard, Issue 2
Date: January 2010
Location: Washington, DC, USA

This document has been approved for publication by the Management Council of the
Consultative Committee for Space Data Systems (CCSDS) and represents the consensus
technical agreement of the participating CCSDS Member Agencies. The procedure for
review and authorization of CCSDS documents is detailed in the Procedures Manual for the
Consultative Committee for Space Data Systems, and the record of Agency participation in
the authorization of this document can be obtained from the CCSDS Secretariat at the
address below.


This document is published and maintained by:

CCSDS Secretariat
Space Communications and Navigation Office, 7L70
Space Operations Mission Directorate
NASA Headquarters
Washington, DC 20546-0001, USA
CCSDS 911.5-B-2 Page i January 2010
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ISO 26143:2013(E)
CCSDS RECOMMENDED STANDARD FOR SLE ROCF SERVICE
STATEMENT OF INTENT
The Consultative Committee for Space Data Systems (CCSDS) is an organization officially
established by the management of its members. The Committee meets periodically to address
data systems problems that are common to all participants, and to formulate sound technical
solutions to these problems. Inasmuch as participation in the CCSDS is completely voluntary,
the results of Committee actions are termed Recommended Standards and are not
considered binding on any Agency.
This Recommended Standard is issued by, and represents the consensus of, the CCSDS
members. Endorsement of this Recommendation is entirely voluntary. Endorsement,
however, indicates the following understandings:
o Whenever a member establishes a CCSDS-related standard, this standard will be in
accord with the relevant Recommended Standard. Establishing such a standard
does not preclude other provisions which a member may develop.
o Whenever a member establishes a CCSDS-related standard, that member will
provide other CCSDS members with the following information:
-- The standard itself.
-- The anticipated date of initial operational capability.
-- The anticipated duration of operational service.
o Specific service arrangements shall be made via memoranda of agreement. Neither
this Recommended Standard nor any ensuing standard is a substitute for a
memorandum of agreement.
No later than five years from its date of issuance, this Recommended Standard will be
reviewed by the CCSDS to determine whether it should: (1) remain in effect without change;
(2) be changed to reflect the impact of new technologies, new requirements, or new
directions; or (3) be retired or canceled.
In those instances when a new version of a Recommended Standard is issued, existing
CCSDS-related member standards and implementations are not negated or deemed to be non-
CCSDS compatible. It is the responsibility of each member to determine when such
standards or implementations are to be modified. Each member is, however, strongly
encouraged to direct planning for its new standards and implementations towards the later
version of the Recommended Standard.
CCSDS 911.5-B-2 Page ii January 2010
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ISO 26143:2013(E)
CCSDS RECOMMENDED STANDARD FOR SLE ROCF SERVICE
FOREWORD
Through the process of normal evolution, it is expected that expansion, deletion, or
modification of this document may occur. This Recommended Standard is therefore subject
to CCSDS document management and change control procedures, which are defined in the
Procedures Manual for the Consultative Committee for Space Data Systems. Current
versions of CCSDS documents are maintained at the CCSDS Web site:
http://www.ccsds.org/
Questions relating to the contents or status of this document should be addressed to the
CCSDS Secretariat at the address indicated on page i.
CCSDS 911.5-B-2 Page iii January 2010
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ISO 26143:2013(E)
CCSDS RECOMMENDED STANDARD FOR SLE ROCF SERVICE
At time of publication, the active Member and Observer Agencies of the CCSDS were:

Member Agencies

– Agenzia Spaziale Italiana (ASI)/Italy.
– British National Space Centre (BNSC)/United Kingdom.
– Canadian Space Agency (CSA)/Canada.
– Centre National d’Etudes Spatiales (CNES)/France.
– China National Space Administration (CNSA)/People’s Republic of China.
– Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)/Germany.
– European Space Agency (ESA)/Europe.
– Russian Federal Space Agency (RFSA)/Russian Federation.
– Instituto Nacional de Pesquisas Espaciais (INPE)/Brazil.
– Japan Aerospace Exploration Agency (JAXA)/Japan.
– National Aeronautics and Space Administration (NASA)/USA.

Observer Agencies

– Austrian Space Agency (ASA)/Austria.
– Belgian Federal Science Policy Office (BFSPO)/Belgium.
– Central Research Institute of Machine Building (TsNIIMash)/Russian Federation.
– Centro Tecnico Aeroespacial (CTA)/Brazil.
– Chinese Academy of Sciences (CAS)/China.
– Chinese Academy of Space Technology (CAST)/China.
– Commonwealth Scientific and Industrial Research Organization (CSIRO)/Australia.
– CSIR Satellite Applications Centre (CSIR)/Republic of South Africa.
– Danish National Space Center (DNSC)/Denmark.
– European Organization for the Exploitation of Meteorological Satellites
(EUMETSAT)/Europe.
– European Telecommunications Satellite Organization (EUTELSAT)/Europe.
– Geo-Informatics and Space Technology Development Agency (GISTDA)/Thailand.
– Hellenic National Space Committee (HNSC)/Greece.
– Indian Space Research Organization (ISRO)/India.
– Institute of Space Research (IKI)/Russian Federation.
– KFKI Research Institute for Particle & Nuclear Physics (KFKI)/Hungary.
– Korea Aerospace Research Institute (KARI)/Korea.
– Ministry of Communications (MOC)/Israel.
– National Institute of Information and Communications Technology (NICT)/Japan.
– National Oceanic and Atmospheric Administration (NOAA)/USA.
– National Space Organization (NSPO)/Chinese Taipei.
– Naval Center for Space Technology (NCST)/USA.
– Scientific and Technological Research Council of Turkey (TUBITAK)/Turkey.
– Space and Upper Atmosphere Research Commission (SUPARCO)/Pakistan.
– Swedish Space Corporation (SSC)/Sweden.
CCSDS 911.5-B-2 Page iv January 2010
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ISO 26143:2013(E)
CCSDS RECOMMENDED STANDARD FOR SLE ROCF SERVICE
– United States Geological Survey (USGS)/USA.
CCSDS 911.5-B-2 Page v January 2010
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ISO 26143:2013(E)
CCSDS RECOMMENDED STANDARD FOR SLE ROCF SERVICE
DOCUMENT CONTROL

Document Title Date Status
CCSDS Space Link Extension— November Original issue
911.5-B-1 Return Operational Control Fields 2004
Service Specification
CCSDS Space Link Extension—Return January Current issue:
911.5-B-2 Operational Control Fields Service 2010 – corrects/clarifies/
Specification, Recommended updates text and adds
Standard, Issue 2 the option of
picosecond resolution
to the earth-receive-
time parameter.
EC1 Editorial Change 1 August Corrects editorial errors in
2010 A2.4.
NOTE – Substantive changes from the previous issue are indicated by change bars in the
inside margin.


CCSDS 911.5-B-2 Page vi JAanuaugusryt 2010 2010
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ISO 26143:2013(E)
CCSDS RECOMMENDED STANDARD FOR SLE ROCF SERVICE
CONTENTS
Section Page
1 INTRODUCTION. 1-1

1.1 PURPOSE OF THIS RECOMMENDED STANDARD . 1-1
1.2 SCOPE . 1-1
1.3 APPLICABILITY . 1-2
1.4 RATIONALE . 1-2
1.5 DOCUMENT STRUCTURE . 1-2
1.6 DEFINITIONS, NOMENCLATURE, AND CONVENTIONS . 1-5
1.7 REFERENCES . 1-14

2 DESCRIPTION OF THE ROCF SERVICE . 2-1

2.1 OVERVIEW . 2-1
2.2 SPACE LINK EXTENSION REFERENCE MODEL . 2-2
2.3 SERVICE MANAGEMENT . 2-3
2.4 ARCHITECTURE MODEL—FUNCTIONAL VIEW . 2-4
2.5 ARCHITECTURE MODEL—CROSS SUPPORT VIEW . 2-7
2.6 FUNCTIONAL DESCRIPTION . 2-8
2.7 OPERATIONAL SCENARIO . 2-18
2.8 SECURITY ASPECTS OF THE SLE ROCF TRANSFER SERVICE . 2-19

3 ROCF SERVICE OPERATIONS . 3-1

3.1 GENERAL CONSIDERATIONS . 3-1
3.2 ROCF-BIND . 3-15
3.3 ROCF-UNBIND . 3-22
3.4 ROCF-START . 3-26
3.5 ROCF-STOP . 3-34
3.6 ROCF-TRANSFER-DATA . 3-36
3.7 ROCF-SYNC-NOTIFY . 3-40
3.8 ROCF-SCHEDULE-STATUS-REPORT . 3-44
3.9 ROCF-STATUS-REPORT . 3-48
3.10 ROCF-GET-PARAMETER . 3-51
3.11 ROCF-PEER-ABORT . 3-55

4 ROCF PROTOCOL . 4-1

4.1 GENERIC PROTOCOL CHARACTERISTICS . 4-1
4.2 ROCF SERVICE PROVIDER BEHAVIOR . 4-4

CCSDS 911.5-B-2 Page vii January 2010
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ISO 26143:2013(E)
CCSDS RECOMMENDED STANDARD FOR SLE ROCF SERVICE
CONTENTS (continued)
Section Page
ANNEX A DATA TYPE DEFINITIONS (NORMATIVE) . A-1
ANNEX B CONFORMANCE MATRIX (NORMATIVE) .B-1
ANNEX C INDEX TO DEFINITIONS (INFORMATIVE) . C-1
ANNEX D ACRONYMS (INFORMATIVE) . D-1
ANNEX E INFORMATIVE REFERENCES (INFORMATIVE) .E-1
Figure
1-1 SLE Services Documentation . 1-4
2-1 Return Frame Processing SLE-FG . 2-4
2-2 RCF Service Production and Provision . 2-7
2-3 Example of the Management and Provision of RCF Service . 2-8
2-4 Simplified RCF Service Provider State Transition Diagram . 2-11
2-5 Mapping of RCF Service Operations to SLE-PDUs . 2-13
2-6 Buffers and Delivery Modes . 2-18

Table
2-1 RCF Operations . 2-9
3-1 Setting of ROCF Service Configuration Parameters . 3-6
3-2 RCF-BIND Parameters . 3-16
3-3 RCF-UNBIND Parameters . 3-23
3-4 RCF-START Parameters . 3-27
3-5 RCF-STOP Parameters . 3-34
3-6 RCF-TRANSFER-DATA Parameters . 3-36
3-7 RCF-SYNC-NOTIFY Parameters . 3-40
3-8 RCF-SCHEDULE-STATUS-REPORT Parameters . 3-45
3-9 RCF-STATUS-REPORT Parameters . 3-48
3-10 RCF-GET-PARAMETER Parameters . 3-51
3-11 ROCF Parameters . 3-53
3-12 RCF-PEER-ABORT Parameters . 3-55
4-1 Provider Behavior . 4-6
4-2 Event Description References . 4-12
4-3 Predicate Descriptions . 4-12
4-4 Boolean Flags. 4-13
4-5 Compound Action Definitions . 4-13
B-1 Conformance Matrix for RCF Service (Operations) . B-1
B-2 Conformance Matrix for RCF Service (Other Requirements) . B-2

CCSDS 911.5-B-2 Page viii January 2010
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ISO 26143:2013(E)
CCSDS RECOMMENDED STANDARD FOR SLE ROCF SERVICE
1 INTRODUCTION
1.1 PURPOSE OF THIS RECOMMENDED STANDARD
The purpose of this Recommended Standard is to define the Space Link Extension (SLE)
Return Operational Control Fields (ROCF) service in conformance with the SLE Reference
Model (reference [1]). The ROCF service is an SLE transfer service that delivers to a
mission user all operational control fields from one master channel or one virtual channel.
NOTE – The first issue of reference [1] defines the Return Master Channel Operational
Control Field (Rtn MC-OCF) service and the Return Virtual Channel Operational
Control Field (Rtn VC-OCF) service as two distinct services. Subsequent study
has indicated that it is preferable to define one service that provides the
functionality of both. The ROCF service defined here does just that. It is
anticipated that the next issue of reference [1] will take the same approach,
deleting the Rtn MC-OCF and Rtn VC-OCF services and replacing them with the
Rtn OCF service.
1.2 SCOPE
This Recommended Standard defines, in an abstract manner, the ROCF service in terms of:
a) the operations necessary to provide the service;
b) the parameter data associated with each operation;
c) the behaviors that result from the invocation of each operation; and
d) the relationship between, and the valid sequence of, the operations and resulting behaviors.
It does not specify:
a) individual implementations or products;
b) the implementation of entities or interfaces within real systems;
c) the methods or technologies required to acquire telemetry frames from signals
received from a spacecraft;
d) the methods or technologies required to provide a suitable environment for
communications; or
e) the management activities required to schedule, configure, and control the ROCF
service.
CCSDS 911.5-B-2 Page 1-1 January 2010
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ISO 26143:2013(E)
CCSDS RECOMMENDED STANDARD FOR SLE ROCF SERVICE
1.3 APPLICABILITY
1.3.1 APPLICABILITY OF THIS RECOMMENDED STANDARD
This Recommended Standard provides a basis for the development of real systems that
implement the ROCF service. Implementation of the ROCF service in a real system
additionally requires the availability of a communications service to convey invocations and
returns of ROCF service operations between ROCF service users and providers. This
Recommended Standard requires that such a communications service must ensure that
invocations and returns of operations are transferred:
a) in sequence;
b) completely and with integrity;
c) without duplication;
d) with flow control that notifies the application layer in the event of congestion; and
e) with notification to the application layer in the event that communications between
the ROCF service user and the ROCF service provider are disrupted, possibly
resulting in a loss of data.
It is the specific intent of this Recommended Standard to define the ROCF service in a
manner that is independent of any particular communications services, protocols, or
technologies.
1.3.2 LIMITS OF APPLICABILITY
This Recommended Standard specifies the ROCF service that may be provided by an SLE
Complex for inter-Agency cross support. It is neither a specification of, nor a design for, real
systems that may be implemented for the control and monitoring of existing or future
missions.
1.4 RATIONALE
The goal of this Recommended Standard is to create a standard for interoperability between
the tracking stations or ground data handling systems of various Agencies and the consumers
of spacecraft telemetry.
1.5 DOCUMENT STRUCTURE
1.5.1 ORGANIZATION
This document is organized as follows:
CCSDS 911.5-B-2 Page 1-2 January 2010
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ISO 26143:2013(E)
CCSDS RECOMMENDED STANDARD FOR SLE ROCF SERVICE
a) section 1 presents the purpose, scope, applicability and rationale of this
Recommended Standard and lists the definitions, conventions, and references used
throughout the Recommended Standard;
b) section 2 provides an overview of the ROCF service including a functional
description, the service management context, and protocol considerations;
c) section 3 specifies the operations of the ROCF service;
d) section 4 specifies the dynamic behavior of the ROCF service in terms of the state
transitions of the ROCF service provider;
e) annex A provides a formal specification of ROCF service data types using Abstract
Syntax Notation One (ASN.1);
f) annex B provides a conformance matrix that defines what capabilities must be
provided for an implementation to be considered compliant with this Recommended
Standard;
g) annex C lists all terms used in this Recommended Standard and identifies where they
are defined;
h) annex D lists all acronyms used within this document;
i) annex E provides a list of informative references.
1.5.2 SLE SERVICES DOCUMENTATION TREE
This Recommended Standard is based on the cross support model defined in the SLE
Reference Model (reference [1]). It expands upon the concept of an SLE transfer service as
an interaction between an SLE Mission User Entity (MUE) and an SLE transfer service
provider for the purpose of providing the ROCF transfer service.
This Recommended Standard is part of a suite of documents specifying the SLE services.
The SLE services constitute one of the three types of Cross Support Services:
a) Part 1: SLE Services;
b) Part 2: Ground Domain Services;
c) Part 3: Ground Communications Services.
The basic organization of the SLE services documentation is shown in figure 1-1. The
various documents are described in the following paragraphs.
CCSDS 911.5-B-2 Page 1-3 January 2010
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ISO 26143:2013(E)
CCSDS RECOMMENDED STANDARD FOR SLE ROCF SERVICE
Space Link Extension
Cross Support
Cross Support Concept SLE Executive
Reference Model
Part 1: SLE Services Summary
Part 1: SLE Services
SLE Transfer Services
SLE Transfer Services
Forward SLE Service
Return SLE Service
Specifications
Specifications
SLE Service
Management Suite
SLE API for Internet Protocol for
Transfer Services Transfer Services
Recommended Recommended Informational
Legend:
Record (Yellow)
Standard (Blue) Practice (Magenta) Report (Green)

Figure 1-1: SLE Services Documentation
a) Cross Support Concept—Part 1: Space Link Extension Services (reference [E2]): a
Report introducing the concepts of cross support and the SLE services;
b) Cross Support Reference Model—Part 1: Space Link Extension Services (reference
[1]): a Recommended Standard that defines the framework and terminology for the
specification of SLE services;
c) SLE Return Service Specifications: a set of Recommended Standards that will
provide specification of all return link SLE services (this Recommended Standard is
one of the specifications in that set);
d) SLE Forward Service Specifications: a set of Recommended Standards that will
provide specification of all forward link SLE services;
e) SLE API for Transfer Services Specifications: a set of Recommended Practices that
provide specifi
...