***[CCSDS]{.smallcaps}***

***[Operating Plan\
for Standards Development]{.smallcaps}***

*December 1999*

**[CCSDS Operating Plan for Standards Development]{.smallcaps}**

**Issue 1**

**December 1999**

DOCUMENT CONTROL

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  **Document**   **Title**               **Issue**   **Date**   **Status**

                                                                

  CCSDS          CCSDS Operating Plan    Issue 1     December   Current issue
  A01.2-Y-1      for Standards                       1999       
                 Development                                    

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                
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This document is published and maintained by:

CCSDS Secretariat

Program Integration Division (Code MT)

National Aeronautics and Space Administration

Washington, DC 20546, USA

CONTENTS

[Section]{.underline} [Page]{.underline}

1 Purpose and Scope 1

2 Organizational Considerations 1

2.1 Organization of CCSDS 1

2.2 Operating Mode 2

2.3 Standardization Process 3

3 Strategic Themes 4

Annex A CCSDS Technical Panel Terms of Reference and Current Plans of
Work 13

CCSDS Panel 1 (P1)---Space Communications\
Terms of Reference 14

Work Breakdown Structure 15

CCSDS Panel 2 (P2)---Information Interchange Processes (IIP)\
Terms of Reference 16

Work Breakdown Structure 17

CCSDS Panel 3 (P3)---Cross Support Operations\
Terms of Reference 18

Work Breakdown Structure 19

Annex B CCSDS Publications 20

[Figure]{.underline}

1 CCSDS Organization 1

2 Development Modes 2

3 International Space Mission Standardization Process 3

4 CCSDS Strategic Themes 5

[Theme]{.underline}

1 Highly Efficient Communications in Resource-Constrained Environments 6

2 Standard Data Interchange and Archiving Services 8

3 Standard Space Mission Operations Services 9

4 Space Missions as Extensions of Terrestrial Internetworks 10

5 Interoperable Spacecraft Onboard Interfaces 12

# Purpose and Scope

This Operating Plan supplements the Strategic Plan of the Consultative
Committee for Space Data Systems (CCSDS)[^1] by providing organizational
details and plans of work for the CCSDS technical panels. It also
presents five strategic themes compiled by experts from within the
technical panels. The themes outline areas where standardization is
needed within the three CCSDS Domains for Standardization identified in
the Strategic Plan. Together with the panel plans of work, the themes
constitute a roadmap for future standardization activities within the
CCSDS.

This Plan broadly delineates goals for the CCSDS as a whole and for its
technical panels. It does not attempt to define priorities for
individual CCSDS agencies; instead, it presents the larger view of
overall international standardization needs based on the collective
priorities of the CCSDS agencies.

# Organizational Considerations

## Organization of CCSDS

The organization of the CCSDS is shown in figure 1. CCSDS Panel
activities relate to the three CCSDS Strategic Plan space mission
information system service domains as follows: Panel 1 develops
technical Recommendations in the domain of Space Data Communications
Services, Panel 2 in the domain of Space Information Interchange
Services, and Panel 3 in the domain of Space Gateway Services.

![](media/image1.wmf){width="5.922916666666667in"
height="2.8777777777777778in"}

Figure 1: CCSDS Organization

## Operating Mode

CCSDS-recommended standards have been widely accepted by the
international space community because CCSDS has operated in a mode that
directly responded to the needs of participating-agency flight projects
and mission-support infrastructures. The existing CCSDS Recommendations
were developed jointly by the experts of the member agencies, with
contributions from the observer agencies and industry. In some cases, a
subset of the CCSDS agencies may have taken the lead in proposing
concepts and producing documents, but in all cases the developmental
process remained within the CCSDS community.

Because the challenges of the CCSDS Strategic Goals have grown in
contrast to the shrinking resources of the CCSDS agencies, it will
become necessary for the CCSDS to adopt new approaches to recommended
standards development. In particular, the CCSDS recognizes the need to
form strategic alliances with entities outside the CCSDS (see figure 2)
and when necessary to allow one or a few individual agencies to
undertake the bulk of development work on a given Recommendation.

![](media/image2.wmf){width="3.1666666666666665in"
height="1.4027777777777777in"}

Figure 2: Development Modes

The introduction of these new approaches necessitates expansion of the
CCSDS mode of operation into three basic options:

1\) Based on input from the international space mission community, the
CCSDS develops a recommended standard using the resources of its
agencies. CCSDS reviews the recommended standard and approves it as a
CCSDS Recommendation.

2\) The development of the recommended standard (or part of it) is
carried out through alliances with partners. Partners could be other
standards organizations or commercial entities. CCSDS and partners
review the recommended standard, and CCSDS approves it as a CCSDS
Recommendation.

3\) An existing standard covers all or part of the identified
requirements. The part covering CCSDS requirements is adopted as a CCSDS
Recommendation, or part of a Recommendation, after appropriate review.
Any remaining requirements will be processed in one of the above two
modes.

The division of responsibilities within these three modes is summarized
as follows:

  -------- ---------------- ------------------------------ ---------- ------------
  **\      **Generation of  **\                            **\        **\
  Mode**   Requirements**   Development**                  Review**   Approval**

  1        CCSDS            CCSDS                          CCSDS      CCSDS

  2        CCSDS            CCSDS in an alliance with      CCSDS and  CCSDS
                            other entities                 partners   

  3        CCSDS            Adopt existing standards       CCSDS      CCSDS
  -------- ---------------- ------------------------------ ---------- ------------

## Standardization Process

CCSDS has been chartered by Technical Committee (TC) 20/Subcommittee
(SC) 13 of the International Organization for Standardization (ISO) to
develop all space mission-related ISO information technology standards.
In partnership with its sister subcommittee, ISO TC 20/SC 14, CCSDS is
responsible for the development of all space mission-related data and
information transfer standards.

The international space mission standardization process and
relationships are shown in figure 3.

![](media/image3.wmf){width="4.239583333333333in"
height="4.098611111111111in"}

Figure 3: International Space Mission Standardization Process

# Strategic Themes

CCSDS will develop recommendations for future space data and information
transfer standards in accordance with five principal themes:

1\) Highly Efficient Communications in Resource-Constrained Environments

2\) Standard Data Interchange and Archiving Services

3\) Standard Space Mission Operations Services

4\) Space Missions as Extensions of Terrestrial Internetworks

5\) Interoperable Spacecraft Onboard Interfaces

Themes 1 through 3 are existing CCSDS themes; however, their scope has
been expanded. Themes 4 and 5 are new. In figure 4, the five themes and
their sub-tasks are shown in graphic relation to the CCSDS Domains.
Implementation details for the strategic themes are identified in the
tables that follow.

In the context of CCSDS activities, theme sub-tasks are implicitly
prioritized by their schedules. Because individual CCSDS agencies have
priorities derived from the needs of their own programs and projects, it
is expected that a given agency will allocate resources to the sub-tasks
according to its own priorities. However, overall CCSDS efforts will be
focused and apportioned according to the schedules indicated for the
sub-tasks.

![](media/image4.wmf){width="9.11111111111111in"
height="5.694444444444445in"}

Figure 4: CCSDS Strategic Themes

Theme 1: Highly Efficient Communications in Resource-Constrained
Environments

> Date: December 1999

+---+---------------+----------------------+-----+-----+-----+------+
| * | **\           | **\                  | **\ | **\ | **\ | **   |
| * | \             | \                    | \   | \   | I   | Mode |
| \ | Sub-Task**    | Element              | M   | S   | mpl | of   |
| \ |               | s/*Justifications*** | iss | che | e­me | Impl |
| N |               |                      | ion | dul | nte | emen |
| o |               |                      | s** | e** | r** | ­­tati |
| . |               |                      |     |     |     | on** |
| * |               |                      |     |     |     |      |
| * |               |                      |     |     |     |      |
+===+===============+======================+=====+=====+=====+======+
| 1 | Single        | -- Develop           | D   | Sh  | P1E | Mode |
|   | Apertu        | specifications to    | eep | ort |     | 1    |
|   | re/Multi-user | allow multiple       | sp  | t   |     |      |
|   | RF links      | spacecraft to share  | ace | erm |     |      |
|   |               | a single ground      | upl | (M  |     |      |
|   |               | antenna              | ink | ars |     |      |
|   |               |                      | and | mis |     |      |
|   |               |                      | do  | sio |     |      |
|   |               |                      | wnl | ns) |     |      |
|   |               |                      | ink |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 2 | Higher        | -- Develop           | Mi  | Sh  | P   | Mode |
|   | Frequencies   | specifications to    | ssi | ort | 1E, | 1    |
|   | and Optical   | make more efficient  | ons | t   | P1A |      |
|   | C             | use of the           | us  | erm |     |      |
|   | ommunications | congested/contested  | ing | for |     |      |
|   |               | lower frequency      | "   | hig |     |      |
|   |               | bands                | des | her |     |      |
|   |               |                      | ert | fr  |     |      |
|   |               | -- *Provide          | gro | equ |     |      |
|   |               | increased data       | und | enc |     |      |
|   |               | transmission         | sta | ies |     |      |
|   |               | capacity*            | tio |     |     |      |
|   |               |                      | ns" | L   |     |      |
|   |               | -- *Reduce tracking  | (d  | ong |     |      |
|   |               | time to alleviate    | eep | t   |     |      |
|   |               | network              | s   | erm |     |      |
|   |               | over-subscription*   | pac | for |     |      |
|   |               |                      | e); | o   |     |      |
|   |               |                      | s   | pti |     |      |
|   |               |                      | ate | cal |     |      |
|   |               |                      | lli |     |     |      |
|   |               |                      | te- |     |     |      |
|   |               |                      | to- |     |     |      |
|   |               |                      | sat |     |     |      |
|   |               |                      | ell |     |     |      |
|   |               |                      | ite |     |     |      |
|   |               |                      | li  |     |     |      |
|   |               |                      | nks |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 3 | Efficient     | -- Develop           | Po  | Sh  | P1E | Mode |
|   | Modulation    | specifications for   | ten | ort |     | 1    |
|   | Methods       | bandwidth-efficient  | tia | t   |     |      |
|   |               | modulation           | lly | erm |     |      |
|   |               | techniques to        | all | for |     |      |
|   |               | maximize use of      | mi  | b   |     |      |
|   |               | limited spectrum     | ssi | and |     |      |
|   |               | resources            | ons | wid |     |      |
|   |               |                      |     | th- |     |      |
|   |               | -- Develop           |     | eff |     |      |
|   |               | specifications for   |     | ici |     |      |
|   |               | power-efficient      |     | ent |     |      |
|   |               | modulation           |     | mo  |     |      |
|   |               | techniques for deep  |     | dul |     |      |
|   |               | space missions,      |     | ati |     |      |
|   |               | landed and roving    |     | ons |     |      |
|   |               | vehicles, etc.       |     |     |     |      |
|   |               |                      |     | Med |     |      |
|   |               |                      |     | ium |     |      |
|   |               |                      |     | t   |     |      |
|   |               |                      |     | erm |     |      |
|   |               |                      |     | for |     |      |
|   |               |                      |     | pow |     |      |
|   |               |                      |     | er- |     |      |
|   |               |                      |     | eff |     |      |
|   |               |                      |     | ici |     |      |
|   |               |                      |     | ent |     |      |
|   |               |                      |     | mo  |     |      |
|   |               |                      |     | dul |     |      |
|   |               |                      |     | ati |     |      |
|   |               |                      |     | ons |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 4 | High          | -- Develop           | Po  | Med | P   | Mode |
|   | Performance   | specifications to    | ten | ium | 1E/ | 1    |
|   | Coding        | improve performance  | tia | t   | P1A |      |
|   |               | without requiring    | lly | erm |     |      |
|   |               | larger RF            | all |     |     |      |
|   |               | aperture/power       | mi  |     |     |      |
|   |               |                      | ssi |     |     |      |
|   |               | -- *Reduce tracking  | ons |     |     |      |
|   |               | time to alleviate    |     |     |     |      |
|   |               | network              |     |     |     |      |
|   |               | over-subscription*   |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 5 | New Proximity | -- Develop           | M   | Sh  | P   | Mode |
|   | and In-Situ   | specifications for   | ars | ort | 1E, | 1    |
|   | C             | proximity            | mi  | t   | P   | and  |
|   | ommunications | s                    | ssi | erm | 1A, | Mode |
|   | and           | pacecraft-spacecraft | ons |     | P1J | 3    |
|   | Navigation    | and EVA links for    | and |     | (   |      |
|   | Links         | constellations and   | ot  |     | for |      |
|   |               | fleets               | her |     | the |      |
|   |               |                      | mi  |     | pos |      |
|   |               | -- Develop           | ssi |     | iti |      |
|   |               | specifications for   | ons |     | oni |      |
|   |               | relay links          | inv |     | ng) |      |
|   |               | (surface-orbiter or  | olv |     |     |      |
|   |               | surface-surface) to  | ing |     |     |      |
|   |               | stimulate buildup of | r   |     |     |      |
|   |               | interoperable data   | ela |     |     |      |
|   |               | communications       | ys; |     |     |      |
|   |               | infrastructure on    | sp  |     |     |      |
|   |               | and around other     | ace |     |     |      |
|   |               | Solar System bodies  | st  |     |     |      |
|   |               | (e.g., Mars)         | ati |     |     |      |
|   |               |                      | ons |     |     |      |
|   |               | -- Develop           |     |     |     |      |
|   |               | specifications for   |     |     |     |      |
|   |               | integrated           |     |     |     |      |
|   |               | communications and   |     |     |     |      |
|   |               | positioning services |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 6 | File Transfer | -- Develop           | Po  | Sh  | P1F | Mode |
|   | Protocols     | specifications to    | ten | ort |     | 1    |
|   |               | support autonomous   | tia | t   |     | and  |
|   |               | spacecraft           | lly | erm |     | Mode |
|   |               |                      | all |     |     | 2    |
|   |               | -- Develop           | mis |     |     |      |
|   |               | specifications to    | sio |     |     |      |
|   |               | enable exchange of   | ns, |     |     |      |
|   |               | large quantities of  | in  |     |     |      |
|   |               | key information      | p   |     |     |      |
|   |               | during               | art |     |     |      |
|   |               | short-duration       | icu |     |     |      |
|   |               | tracking passes      | lar |     |     |      |
|   |               |                      | mi  |     |     |      |
|   |               | -- Develop           | ssi |     |     |      |
|   |               | specifications to    | ons |     |     |      |
|   |               | enable automation of | w   |     |     |      |
|   |               | labor-intensive      | ith |     |     |      |
|   |               | ground operations    | d   |     |     |      |
|   |               |                      | ata |     |     |      |
|   |               | -- Develop enhanced  | s   |     |     |      |
|   |               | 'flow control'       | tor |     |     |      |
|   |               | specifications to    | age |     |     |      |
|   |               | allow important data | c   |     |     |      |
|   |               | to be transferred    | apa |     |     |      |
|   |               | more promptly than   | bil |     |     |      |
|   |               | normal data          | ity |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 7 | Security and  | -- Develop           | In  | Sh  | P   | Mode |
|   | Privacy       | specifications to    | pa  | ort | 1E, | 1,   |
|   |               | protect data links   | rti | t   | P   | Mode |
|   |               | against              | cul | erm | ~ne | 2    |
|   |               | unintentional        | ar, |     | w~, | and  |
|   |               | intrusion (e.g.      | mi  |     | P3, | Mode |
|   |               | radio interference)  | ssi |     | P   | 3    |
|   |               |                      | ons |     | 1A, |      |
|   |               | -- Develop           | w   |     | P   |      |
|   |               | specifications to    | ith |     | 1F; |      |
|   |               | provide end-to-end   | au  |     | P2  |      |
|   |               | data protection      | dio |     | par |      |
|   |               | against intentional  | and |     | tic |      |
|   |               | intrusion            | vi  |     | ula |      |
|   |               |                      | deo |     | rly |      |
|   |               | *-- As space         | com |     | for |      |
|   |               | missions become more | mun |     | se  |      |
|   |               | internetworked, risk | ica |     | cur |      |
|   |               | of malicious         | ­tio |     | ity |      |
|   |               | activity increases*  | ns; |     | for |      |
|   |               |                      | s   |     | d   |      |
|   |               |                      | pac |     | ata |      |
|   |               |                      | e-s |     | acc |      |
|   |               |                      | tat |     | ess |      |
|   |               |                      | ion |     | and |      |
|   |               |                      | el  |     | dis |      |
|   |               |                      | eme |     | tri |      |
|   |               |                      | nts |     | but |      |
|   |               |                      |     |     | ion |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 8 | Advanced Data | -- Adopt/adapt       | Po  | Med | P1F | Mode |
|   | Compression   | commercial file      | ten | ium | (t  | 1    |
|   |               | compression          | tia | t   | ran | and  |
|   |               | capabilities (such   | lly | erm | sit | Mode |
|   |               | as ZIP) to extend    | all |     | ion | 3    |
|   |               | onboard file storage | mi  |     | f   |      |
|   |               | capabilities         | ssi |     | rom |      |
|   |               |                      | on, |     | P   |      |
|   |               | -- Develop new       | in  |     | 1A) |      |
|   |               | space-unique lossy   | p   |     |     |      |
|   |               | compression schemes  | art |     |     |      |
|   |               | as necessary to      | icu |     |     |      |
|   |               | maximize return of   | lar |     |     |      |
|   |               | large quantities of  | mi  |     |     |      |
|   |               | information          | ssi |     |     |      |
|   |               |                      | ons |     |     |      |
|   |               |                      | w   |     |     |      |
|   |               |                      | ith |     |     |      |
|   |               |                      | on  |     |     |      |
|   |               |                      | -bo |     |     |      |
|   |               |                      | ard |     |     |      |
|   |               |                      | s   |     |     |      |
|   |               |                      | tor |     |     |      |
|   |               |                      | age |     |     |      |
|   |               |                      | c   |     |     |      |
|   |               |                      | apa |     |     |      |
|   |               |                      | bil |     |     |      |
|   |               |                      | ity |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 9 | Advanced Link | -- study/develop     | All | L   | P1A | Mode |
|   | Layer         | technologies for     | mi  | ong |     | 1    |
|   | Techniques    | improved link        | ssi | t   |     | and  |
|   |               | performance,         | ons | erm |     | Mode |
|   |               | including but not    |     |     |     | 3    |
|   |               | limited to           |     |     |     |      |
|   |               |                      |     |     |     |      |
|   |               | > • variable-length  |     |     |     |      |
|   |               | > adaptive modular   |     |     |     |      |
|   |               | > control fields     |     |     |     |      |
|   |               | >                    |     |     |     |      |
|   |               | > • feedback to      |     |     |     |      |
|   |               | > upper layers about |     |     |     |      |
|   |               | > condition of the   |     |     |     |      |
|   |               | > link (dead,        |     |     |     |      |
|   |               | > congested, or      |     |     |     |      |
|   |               | > corrupted)         |     |     |     |      |
|   |               | >                    |     |     |     |      |
|   |               | > • dynamic changing |     |     |     |      |
|   |               | > of data rates on a |     |     |     |      |
|   |               | > link during a pass |     |     |     |      |
|   |               | > to improve         |     |     |     |      |
|   |               | > throughput         |     |     |     |      |
|   |               | >                    |     |     |     |      |
|   |               | > • protocols to     |     |     |     |      |
|   |               | > assign priorities  |     |     |     |      |
|   |               | > and handle dynamic |     |     |     |      |
|   |               | > allocation of data |     |     |     |      |
|   |               | > rates of different |     |     |     |      |
|   |               | > VCs on a link      |     |     |     |      |
|   |               | >                    |     |     |     |      |
|   |               | > • addition of ATM  |     |     |     |      |
|   |               | > as a link protocol |     |     |     |      |
|   |               | >                    |     |     |     |      |
|   |               | > • hailing          |     |     |     |      |
|   |               | > techniques         |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+

Theme 2: Standard Data Interchange and Archiving Services

> Date: December 1999

+---+---------------+----------------------+-----+-----+-----+------+
| * | **\           | **\                  | **\ | **\ | **\ | **   |
| * | \             | \                    | \   | \   | I   | Mode |
| \ | Sub-Task**    | Element              | M   | S   | mpl | of   |
| \ |               | s/*Justifications*** | iss | che | e­me | Impl |
| N |               |                      | ion | dul | nte | emen |
| o |               |                      | s** | e** | r** | ­tati |
| . |               |                      |     |     |     | on** |
| * |               |                      |     |     |     |      |
| * |               |                      |     |     |     |      |
+===+===============+======================+=====+=====+=====+======+
| 1 | Data          | -- Define services   | All | Sho | P2  | All  |
|   | Management    | for short and medium | mis | rt/ |     | m    |
|   | Services      | term data            | sio | Med |     | odes |
|   |               | repositories         | ns, | ium |     |      |
|   |               |                      | in  | t   |     |      |
|   |               | -- Define experiment | p   | erm |     |      |
|   |               | data record services | art |     |     |      |
|   |               |                      | icu |     |     |      |
|   |               | -- *Enable the       | lar |     |     |      |
|   |               | development of       | s   |     |     |      |
|   |               | standard tools for   | cie |     |     |      |
|   |               | projects to manage   | nce |     |     |      |
|   |               | the information they | and |     |     |      |
|   |               | gather*              | Ea  |     |     |      |
|   |               |                      | rth |     |     |      |
|   |               |                      | ob  |     |     |      |
|   |               |                      | ser |     |     |      |
|   |               |                      | vat |     |     |      |
|   |               |                      | ion |     |     |      |
|   |               |                      | mi  |     |     |      |
|   |               |                      | ssi |     |     |      |
|   |               |                      | ons |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 2 | Information   | -- Develop data      | All | Sho | P2  | All  |
|   | I             | description          | mi  | rt/ |     | m    |
|   | nfrastructure | techniques           | ssi |     |     | odes |
|   | Architecture  |                      | ons | Med |     |      |
|   | for Space     | -- Develop           |     | ium |     |      |
|   | Data          | interoperable data   |     | t   |     |      |
|   |               | dictionaries         |     | erm |     |      |
|   |               |                      |     |     |     |      |
|   |               | -- Define            |     |     |     |      |
|   |               | registration         |     |     |     |      |
|   |               | procedures           |     |     |     |      |
|   |               |                      |     |     |     |      |
|   |               | -- Define            |     |     |     |      |
|   |               | interchange          |     |     |     |      |
|   |               | structures and       |     |     |     |      |
|   |               | protocols            |     |     |     |      |
|   |               |                      |     |     |     |      |
|   |               | *-- Enable data to   |     |     |     |      |
|   |               | be usable by the     |     |     |     |      |
|   |               | widest community of  |     |     |     |      |
|   |               | users*               |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 3 | Space Data    | -- Develop reference | All | Sho | P2  | All  |
|   | Archiving     | model for long-term  | mi  | rt/ |     | m    |
|   | Techniques    | archival systems     | ssi |     |     | odes |
|   |               |                      | ons | Med |     |      |
|   |               | -- Develop standards |     | ium |     |      |
|   |               | for long-term        |     | t   |     |      |
|   |               | preservation of      |     | erm |     |      |
|   |               | information          |     |     |     |      |
|   |               |                      |     |     |     |      |
|   |               | -- *The information  |     |     |     |      |
|   |               | gathered by all      |     |     |     |      |
|   |               | missions must be     |     |     |     |      |
|   |               | available for future |     |     |     |      |
|   |               | generations;         |     |     |     |      |
|   |               | archiving standards  |     |     |     |      |
|   |               | will increase the    |     |     |     |      |
|   |               | value of that        |     |     |     |      |
|   |               | information*         |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+

Theme 3: Standard Space Mission Operations Services

> Date: December 1999

+---+---------------+----------------------+-----+-----+-----+------+
| * | **\           | **\                  | **\ | **\ | **\ | **   |
| * | \             | \                    | \   | \   | I   | Mode |
| \ | Sub-Task**    | Element              | M   | S   | mpl | of   |
| \ |               | s/*Justifications*** | iss | che | e­me | Impl |
| N |               |                      | ion | dul | nte | emen |
| o |               |                      | s** | e** | r** | ­tati |
| . |               |                      |     |     |     | on** |
| * |               |                      |     |     |     |      |
| * |               |                      |     |     |     |      |
+===+===============+======================+=====+=====+=====+======+
| 1 | Space Link    | -- Develop Model and | A   | Sh  | P3  | Mode |
|   | Access        | Concept for          | ll, | ort |     | 1    |
|   |               | Cross-Support        | in  | t   |     |      |
|   |               | Services             | p   | erm |     |      |
|   |               |                      | art |     |     |      |
|   |               | -- Develop           | icu |     |     |      |
|   |               | specifications for   | lar |     |     |      |
|   |               | SLE Services         | cr  |     |     |      |
|   |               |                      | oss |     |     |      |
|   |               |                      | s   |     |     |      |
|   |               |                      | upp |     |     |      |
|   |               |                      | ort |     |     |      |
|   |               |                      | mi  |     |     |      |
|   |               |                      | ssi |     |     |      |
|   |               |                      | ons |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 2 | Spacecraft    | -- Develop           | All | Sh  | P3  | Mode |
|   | Monitor and   | spacecraft           | mis | ort | for | 3 or |
|   | Control       | health/safety        | sio | t   | mes | Mo   |
|   |               | monitoring service   | ns, | erm | sag | de 2 |
|   |               | specification        | in  | for | ing | if   |
|   |               |                      | p   | mes | s   | C    |
|   |               | -- Develop           | art | sag | yst | CSDS |
|   |               | performance-analysis | icu | ing | ems | r    |
|   |               | service              | lar | s   | and | esou |
|   |               | specification        | cr  | yst | au  | rces |
|   |               |                      | oss | ems | tom | are  |
|   |               | -- Develop           | s   | and | ati | a    |
|   |               | specification for    | upp | au  | on, | vail |
|   |               | using                | ort | tom | P2  | able |
|   |               | c                    | mis | ati | and |      |
|   |               | ommercial/industrial | sio | on, | P3  |      |
|   |               | automation           | ns, | med | for |      |
|   |               | approaches           | e.  | ium | m   |      |
|   |               |                      | g., | t   | iss |      |
|   |               | -- Develop/adopt     | Int | erm | ion |      |
|   |               | specifications for   | egr | for | d   |      |
|   |               | messaging systems    | al, | all | ata |      |
|   |               | for transmitting     | M   | ot  | b   |      |
|   |               | commands to space    | ars | her | ase |      |
|   |               | systems and          | mi  | su  | la  |      |
|   |               | verifying responses  | ssi | bje | ngu |      |
|   |               |                      | ons | cts | age |      |
|   |               | -- Develop           |     |     |     |      |
|   |               | spacecraft time      |     |     |     |      |
|   |               | correlation service  |     |     |     |      |
|   |               | specification        |     |     |     |      |
|   |               |                      |     |     |     |      |
|   |               | -- Develop           |     |     |     |      |
|   |               | telecommunications   |     |     |     |      |
|   |               | link analysis        |     |     |     |      |
|   |               | service              |     |     |     |      |
|   |               | specification        |     |     |     |      |
|   |               |                      |     |     |     |      |
|   |               | -- Develop standard  |     |     |     |      |
|   |               | language for         |     |     |     |      |
|   |               | describing the       |     |     |     |      |
|   |               | contents of the      |     |     |     |      |
|   |               | mission data base    |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 3 | Ground System | -- Specify messaging | All | Sh  | P3  | Mode |
|   | Monitor and   | systems for          | mi  | ort |     | 3 or |
|   | Control       | transmitting         | ssi | t   |     | Mo   |
|   |               | commands to          | ons | erm |     | de 2 |
|   |               | supporting ground    |     | (   |     | if   |
|   |               | network systems and  |     | CSO |     | C    |
|   |               | verifying responses  |     | C); |     | CSDS |
|   |               |                      |     | oth |     | r    |
|   |               | -- Develop           |     | erw |     | esou |
|   |               | specification for    |     | ise |     | rces |
|   |               | using                |     | Med |     | are  |
|   |               | c                    |     | ium |     | a    |
|   |               | ommercial/industrial |     | t   |     | vail |
|   |               | automation           |     | erm |     | able |
|   |               | approaches           |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 4 | Tracking and  | -- Develop orbit     | All | Sh  | P   | Mode |
|   | Navigation    | determination        | mi  | ort | 1J, | 3 or |
|   | Services      | service              | ssi | t   | P3  | Mo   |
|   |               | specification        | ons | erm |     | de 2 |
|   |               |                      |     |     |     | if   |
|   |               | -- Develop           |     |     |     | C    |
|   |               | trajectory analysis  |     |     |     | CSDS |
|   |               | service              |     |     |     | r    |
|   |               | specification        |     |     |     | esou |
|   |               |                      |     |     |     | rces |
|   |               | -- Develop maneuver  |     |     |     | are  |
|   |               | planning/design      |     |     |     | a    |
|   |               | service              |     |     |     | vail |
|   |               | specification        |     |     |     | able |
|   |               |                      |     |     |     |      |
|   |               | -- Define            |     |     |     |      |
|   |               | information          |     |     |     |      |
|   |               | interchange          |     |     |     |      |
|   |               | techniques for       |     |     |     |      |
|   |               | rendezvous and       |     |     |     |      |
|   |               | docking techniques   |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 5 | Mission       | -- Develop mission   | Po  | Med | P3  | Mode |
|   | Planning      | profile design       | ten | ium |     | 3 or |
|   | Services      | service              | tia | t   |     | Mo   |
|   |               | specification        | lly | erm |     | de 2 |
|   |               |                      | all |     |     | if   |
|   |               | -- Develop mission   | mi  |     |     | C    |
|   |               | sequence design      | ssi |     |     | CSDS |
|   |               | service              | ons |     |     | r    |
|   |               | specification        |     |     |     | esou |
|   |               |                      |     |     |     | rces |
|   |               |                      |     |     |     | are  |
|   |               |                      |     |     |     | a    |
|   |               |                      |     |     |     | vail |
|   |               |                      |     |     |     | able |
+---+---------------+----------------------+-----+-----+-----+------+
| 6 | Telec         | -- Develop ground    | Po  | Med | P3  | Mode |
|   | ommunications | network              | ten | ium | (   | 3 or |
|   | Services      | communications       | tia | t   | P2) | Mo   |
|   |               | services             | lly | erm |     | de 2 |
|   |               | specifications       | all |     |     | if   |
|   |               |                      | mi  |     |     | C    |
|   |               | -- Develop           | ssi |     |     | CSDS |
|   |               | audio/video          | ons |     |     | r    |
|   |               | distribution service |     |     |     | esou |
|   |               | specification        |     |     |     | rces |
|   |               |                      |     |     |     | are  |
|   |               |                      |     |     |     | a    |
|   |               |                      |     |     |     | vail |
|   |               |                      |     |     |     | able |
+---+---------------+----------------------+-----+-----+-----+------+

Theme 4: Space Missions as Extensions of Terrestrial Internetworks

> Date: December 1999

+---+---------------+----------------------+-----+-----+-----+------+
| * | **\           | **\                  | **\ | **\ | **\ | **   |
| * | \             | \                    | \   | \   | I   | Mode |
| \ | Sub-Task**    | Element              | M   | S   | mpl | of   |
| \ |               | s/*Justifications*** | iss | che | e­me | Impl |
| N |               |                      | ion | dul | nte | emen |
| o |               |                      | s** | e** | r** | ­tati |
| . |               |                      |     |     |     | on** |
| * |               |                      |     |     |     |      |
| * |               |                      |     |     |     |      |
+===+===============+======================+=====+=====+=====+======+
| 1 | Interface     | -- Develop           | Po  | Med | P1E | M    |
|   | with          | specifications for   | ten | ium | p   | odes |
|   | Near-Earth    | low-cost and         | tia | t   | lus | 1    |
|   | C             | near--real time      | lly | erm | P1A | and  |
|   | ommunications | t                    | all |     | t   | 2    |
|   | C             | elemetry/telecommand | LEO |     | hen |      |
|   | onstellations | access               | mi  |     | P3  |      |
|   |               |                      | ssi |     |     |      |
|   |               | -- *Enables          | ons |     |     |      |
|   |               | potential support to |     |     |     |      |
|   |               | Space Station and    |     |     |     |      |
|   |               | LEO Operations*      |     |     |     |      |
|   |               |                      |     |     |     |      |
|   |               | *-- Extend           |     |     |     |      |
|   |               | institutional        |     |     |     |      |
|   |               | communications       |     |     |     |      |
|   |               | infrastructure       |     |     |     |      |
|   |               | without requiring    |     |     |     |      |
|   |               | new investment*      |     |     |     |      |
|   |               |                      |     |     |     |      |
|   |               | -- Work with private |     |     |     |      |
|   |               | sector to identify   |     |     |     |      |
|   |               | gateways between     |     |     |     |      |
|   |               | space mission and    |     |     |     |      |
|   |               | public               |     |     |     |      |
|   |               | communications       |     |     |     |      |
|   |               | systems              |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 2 | Interface     | -- Specify low-cost  | Po  | Sh  | P1E | M    |
|   | with          | spacecraft position  | ten | ort | p   | odes |
|   | Near-Earth    | determination        | tia | t   | lus | 1    |
|   | Navigation    | service without      | lly | erm | P1J | and  |
|   | Systems (e.g. | requiring unique     | all |     |     | 2    |
|   | GPS, GLONASS, | institutional        | LEO |     | P3  |      |
|   | etc.)         | tracking systems     | mi  |     |     |      |
|   |               |                      | ssi |     |     |      |
|   |               | -- Point to existing | ons |     |     |      |
|   |               | capabilities and     |     |     |     |      |
|   |               | recommend an         |     |     |     |      |
|   |               | integrated space     |     |     |     |      |
|   |               | navigation concept   |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 3 | Interface     | -- Develop           | Po  | Sh  | P~n | M    |
|   | with          | specifications to    | ten | ort | ew~ | odes |
|   | Commercial    | support easy         | tia | t   | t   | 1    |
|   | Audio and     | bridging of space    | lly | erm | hen | and  |
|   | Video Data    | audio/video into     | all |     | P3; | 2;   |
|   | Distribution  | public media         | LEO |     | P2  | Mode |
|   |               | distribution systems | mis |     | for | 3    |
|   |               |                      | sio |     | Ad  |      |
|   |               | -- *Enable low cost  | ns, |     | opt |      |
|   |               | public               | in  |     | /ad |      |
|   |               | "telepresence" in    | p   |     | apt |      |
|   |               | space exploration*   | art |     | st  |      |
|   |               |                      | icu |     | and |      |
|   |               | -- Adopt/adapt       | lar |     | ard |      |
|   |               | standard commercial  | man |     | c   |      |
|   |               | capabilities such as | ned |     | omm |      |
|   |               | MPEG, JPEG           | mi  |     | erc |      |
|   |               |                      | ssi |     | ial |      |
|   |               |                      | ons |     | cap |      |
|   |               |                      |     |     | abi |      |
|   |               |                      |     |     | lit |      |
|   |               |                      |     |     | ies |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 4 | Extension of  | -- Develop alliances | Po  | Med | P   | Mode |
|   | Internet into | with Internet        | ten | ium | 1F, | 2    |
|   | Near-Earth    | standardization      | tia | t   | P2, |      |
|   | Vicinity      | bodies to allow      | lly | erm | P3  |      |
|   |               | terrestrial Internet | all |     |     |      |
|   |               | capabilities to be   | mis |     |     |      |
|   |               | extended into        | sio |     |     |      |
|   |               | near-Earth space     | ns, |     |     |      |
|   |               |                      | in  |     |     |      |
|   |               | -- *Allow            | p   |     |     |      |
|   |               | experimenters to use | art |     |     |      |
|   |               | familiar             | icu |     |     |      |
|   |               | Internet-based       | lar |     |     |      |
|   |               | communications       | fle |     |     |      |
|   |               | mechanisms and       | ets |     |     |      |
|   |               | standard application | of  |     |     |      |
|   |               | dialogues*           | s   |     |     |      |
|   |               |                      | ate |     |     |      |
|   |               | -- *Reduce costs by  | lli |     |     |      |
|   |               | using well-tested    | tes |     |     |      |
|   |               | commercially         |     |     |     |      |
|   |               | available systems*   |     |     |     |      |
|   |               |                      |     |     |     |      |
|   |               | -- Develop space     |     |     |     |      |
|   |               | internet naming and  |     |     |     |      |
|   |               | addressing scheme in |     |     |     |      |
|   |               | cooperation with     |     |     |     |      |
|   |               | IETF                 |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 5 | Extension of  | -- Develop alliances | Pla | Sh  | P   | Mode |
|   | Internet into | with Internet        | net | ort | 1F, | 2    |
|   | Deep Space    | standardization      | ary | t   | P2, |      |
|   |               | bodies to allow      | or  | erm | P3  |      |
|   |               | terrestrial Internet | bit |     |     |      |
|   |               | capabilities to be   | ers |     |     |      |
|   |               | utilized in deep     | and |     |     |      |
|   |               | space and on/around  | rov |     |     |      |
|   |               | other Solar System   | ers |     |     |      |
|   |               | bodies               |     |     |     |      |
|   |               |                      |     |     |     |      |
|   |               | -- Develop           |     |     |     |      |
|   |               | specifications for   |     |     |     |      |
|   |               | deploying fragments  |     |     |     |      |
|   |               | of the Earth's       |     |     |     |      |
|   |               | Internet throughout  |     |     |     |      |
|   |               | the Solar System,    |     |     |     |      |
|   |               | interconnected by    |     |     |     |      |
|   |               | gateways and         |     |     |     |      |
|   |               | long-haul            |     |     |     |      |
|   |               | communications       |     |     |     |      |
|   |               | links, to build up   |     |     |     |      |
|   |               | slowly an            |     |     |     |      |
|   |               | "Interplanetary      |     |     |     |      |
|   |               | Internet"            |     |     |     |      |
|   |               |                      |     |     |     |      |
|   |               | -- Develop space     |     |     |     |      |
|   |               | internet naming and  |     |     |     |      |
|   |               | addressing scheme in |     |     |     |      |
|   |               | cooperation with     |     |     |     |      |
|   |               | IETF                 |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+

Theme 5: Interoperable Spacecraft Onboard Interfaces

> Date: December 1999

+---+---------------+----------------------+-----+-----+-----+------+
| * | **\           | **\                  | **\ | **\ | **\ | **   |
| * | \             | \                    | \   | \   | I   | Mode |
| \ | Sub-Task**    | Element              | M   | S   | mpl | of   |
| \ |               | s/*Justifications*** | iss | che | e­me | Impl |
| N |               |                      | ion | dul | nte | emen |
| o |               |                      | s** | e** | r** | ­tati |
| . |               |                      |     |     |     | on** |
| * |               |                      |     |     |     |      |
| * |               |                      |     |     |     |      |
+---+---------------+----------------------+-----+-----+-----+------+
| 1 | "Network      | -- Develop on-board  | All | Me  | P~n | M    |
|   | Ready" Space  | bus/network          | mis | diu | ew~ | odes |
|   | Devices and   | interfaces           | sio | m-L |     | 2    |
|   | Subsystems    |                      | ns, | ong |     | and  |
|   |               | -- Develop on-board  | in  | t   |     | 3    |
|   |               | network services     | p   | erm |     |      |
|   |               |                      | art |     |     | (E   |
|   |               | -- Develop on-board  | icu |     |     | stab |
|   |               | time distribution    | lar |     |     | lish |
|   |               | systems              | mi  |     |     | j    |
|   |               |                      | ssi |     |     | oint |
|   |               |                      | ons |     |     | wor  |
|   |               |                      | w   |     |     | king |
|   |               |                      | ith |     |     | gr   |
|   |               |                      | i   |     |     | oups |
|   |               |                      | nte |     |     | with |
|   |               |                      | rna |     |     | IS   |
|   |               |                      | tio |     |     | O/TC |
|   |               |                      | nal |     |     | 2    |
|   |               |                      | p   |     |     | 0/SC |
|   |               |                      | art |     |     | 14   |
|   |               |                      | ici |     |     | and  |
|   |               |                      | pat |     |     | indu |
|   |               |                      | ion |     |     | stry |
|   |               |                      |     |     |     | p    |
|   |               |                      |     |     |     | arti |
|   |               |                      |     |     |     | cipa |
|   |               |                      |     |     |     | nts) |
+---+---------------+----------------------+-----+-----+-----+------+

**Annex A**

**CCSDS Technical Panel**

**Terms of Reference**

**and\
Current Plans of Work**

**CCSDS Panel 1 (P1)**

**Space Communications**

**Terms of Reference**

Panel 1 is responsible for the efficiency and integrity of
communications between source and destination during space operations
and for the identification and development of Recommendations to support
those communications. It is organized by subpanels that essentially
parallel the layers of the ISO Seven-layer Reference Model:

-- Subpanel 1E addresses the Physical Layer: Optical, RF, Modulation,
and Coding issues in the Space environment

-- Subpanel 1A addresses the Link Layer: data structures,
synchronization, message coding, and other considerations

-- Subpanel 1F addresses High Layers: networks, transport, file
transfers for space data communications, and applications such as Data
Compression and Time Codes

-- Subpanel 1J addresses tracking and navigation considerations as
required for space operations

Panel 1 is also responsible for the identification of appropriate
safeguarding techniques for user authentication and data object
protection.

![](media/image5.wmf){width="9.85625in" height="7.4944444444444445in"}

**CCSDS Panel 2 (P2)**

**Information Interchange Processes (IIP)**

**Terms of Reference**

Panel 2 has the major role of integrating recently acquired space data
into the global information infrastructure so that they are readily and
permanently accessible by interested users. As such, its concern is the
functionality of information interchange, as opposed to other CCSDS
panels' concerns of real-time transporting and handling of space
mission-related data. Recognizing the problems associated with the
interchange of space mission-related information among autonomous,
distributed, and heterogeneous systems having wide variations in time
between generation and application of that information, Panel 2's
program is organized for identifying and developing standards for:

Data Location - Determining whether and where certain data exist

Data Archiving - Successfully storing data and their descriptions

Data Access - Finding and retrieving old data when requested

Data Understanding - Obtaining syntactic and semantic information about
the archived data and methods for registering data descriptions

Data transfer - Agreeing on common application data formats and other
products/data objects for multi-discipline earth and science information
interchange activities

Panel 2 is also responsible for the identification of appropriate
safeguarding techniques for user authentication and data object
protection.

![](media/image1.wmf)

**CCSDS Panel 3 (P3)**

**Cross Support Operations**

**Terms of Reference**

Panel 3 addresses the functionality of extending forward and return
communications between the ground-based users and the ground gateway of
the space link, hence the term Space Link Extension (SLE).

Additionally, since the ground gateway user interface is that part of
the end-to-end data system in which the majority of cross-support
operations between the user and the provider agencies occur, Panel 3 is
responsible for the identification and definition of the ground cross
support services as well as for the development of Recommendations
defining services, related procedures, formats, and protocols for all
phases of operational cross support.

Panel 3 is also responsible for the identification of appropriate
safeguarding techniques for user authentication and data object
protection.

![](media/image2.wmf)

**Annex B**

**CCSDS Publications**[^2]

CCSDS 100.0-G-1. *Telemetry Summary of Concept and Rationale*. Green
Book. December 1987.

CCSDS 101.0-B-4. *Telemetry Channel Coding*. Blue Book. May 1999.

CCSDS 102.0-B-4. *Packet Telemetry*. Blue Book. November 1995. (ISO
13419:1997.)

CCSDS 103.0-B-1. *Packet Telemetry Services*. Blue Book. May 1996.
(ISO/DIS 17433.)

CCSDS 120.0-G-1. *Lossless Data Compression*. Green Book. May 1997.

CCSDS 121.0-B-1. *Lossless Data Compression*. Blue Book. May 1997.
(ISO/DIS 15877.)

CCSDS 200.0-G-6. *Telecommand Summary of Concept and Rationale*. Green
Book. January 1987.

CCSDS 201.0-B-2. *Telecommand Part 1---Channel Service*. Blue Book.
November 1995. (ISO 12171:1998.)

CCSDS 202.0-B-2. *Telecommand Part 2---Data Routing Service*. Blue Book.
November 1992. (ISO 12172:1998.)

CCSDS 202.1-B-1. *Telecommand Part 2.1---Command Operation Procedures*.
Blue Book. October 1991. (ISO 12173:1998.)

CCSDS 203.0-B-1. *Telecommand Part 3---Data Management Service*. Blue
Book. January 1987. (ISO 12174:1998.)

CCSDS 301.0-B-2. *Time Code Formats*. Blue Book. April 1990. (ISO
11104:1991.)

CCSDS 320.0-B-2. *CCSDS Global Spacecraft Identification Field Code
Assignment Control Procedures*. Blue Book. October 1998.

CCSDS 401.0-B. *Radio Frequency and Modulation Systems---Part 1: Earth
Stations and Spacecraft*. Blue Book. May 1999.

CCSDS 411.0-G-3. *Radio Frequency and Modulation---Part 1: Earth
Stations*. Green Book. May 1997.

CCSDS 412.0-G-1. *Radio Frequency and Modulation
Systems---Spacecraft-Earth Station Compatibility Test Procedures*. Green
Book. May 1992.

CCSDS 501.0-B-1. *Radio Metric and Orbit Data*. Blue Book. January 1987.
(ISO 11103:1991.)

CCSDS 610.0-G-5. *Space Data Systems Operations with Standard Formatted
Data Units: System and Implementation Aspects*. Green Book. February
1987.

CCSDS 620.0-B-2. *Standard Formatted Data Units---Structure and
Construction Rules*. Blue Book. May 1992. (ISO 12175:1994.)

CCSDS 621.0-G-1. *Standard Formatted Data Units---A Tutorial*. Green
Book. May 1992.

CCSDS 622.0-B-1. *Standard Formatted Data Units---Referencing
Environment*. Blue Book. May 1997. (ISO/DIS 15888.)

CCSDS 630.0-B-1. *Standard Formatted Data Units---Control Authority
Procedures*. Blue Book. June 1993. (ISO 13764:1996.)

CCSDS 631.0-G-2. *Standard Formatted Data Units---Control Authority
Procedures Tutorial*. Green Book. November 1994.

CCSDS 632.0-B-1. *Standard Formatted Data Units---Control Authority Data
Structures*. Blue Book. November 1994. (ISO 15395:1998.)

CCSDS 641.0-B-1. *Parameter Value Language Specification (CCSD0006)*.
Blue Book. May 1992. (ISO 14961:1997.)

CCSDS 641.0-G-1. *Parameter Value Language---A Tutorial*. Green Book.
May 1992.

CCSDS 642.1-G-1. *Language Usage in Information Interchange Tutorial*.
Green Book. October 1989.

CCSDS 643.0-B-1. *ASCII Encoded English (CCSD0002)*. Blue Book. November
1992. (ISO 14962:1997.)

CCSDS 644.0-B-1. *The Data Description Language EAST Specification
(CCSD0010)*. Blue Book. May 1997. (ISO/DIS 15889.)

CCSDS 645.0-G-1. *The Data Description Language EAST---A Tutorial*.
Green Book. May 1997.

CCSDS 646.0-G-1. *The Data Description Language EAST---List of
Conventions*. Green Book. May 1997.

CCSDS 700.0-G-3. *Advanced Orbiting Systems, Networks and Data Links:
Summary of Concept, Rationale and Performance*. Green Book. November
1992.

CCSDS 701.0-B-2. *Advanced Orbiting Systems, Networks and Data Links:
Architectural Specification*. Blue Book. November 1992. (ISO
133420:1997.)

CCSDS 704.0-B-1. *Advanced Orbiting Systems, Networks and Data Links:
Audio, Video and Still-Image Communications Services*. Blue Book. May
1994. (ISO/DIS 15890.)

CCSDS 704.1-G-3. *Advanced Orbiting Systems, Networks and Data Links:
Audio, Video and Still-Image Communications Services*. Green Book. May
1994.

CCSDS 713.0-B-1. *Space Communications Protocol Specification
(SCPS)---Network Protocol (SCPS-NP)*. Blue Book. May 1999. (ISO/DIS
15891.)

CCSDS 713.5-B-1. *Space Communications Protocol Specification
(SCPS)---Security Protocol (SCPS-SP)*. Blue Book. May 1999. (ISO/DIS
15892.)

CCSDS 714.0-B-1. *Space Communications Protocol Specification
(SCPS)---Transport Protocol (SCPS-TP)*. Blue Book. May 1999. (ISO/DIS
15893.)

CCSDS 717.0-B-1. *Space Communications Protocol Specification
(SCPS)---File Protocol (SCPS-FP)*. Blue Book. May 1999. (ISO/DIS 15894.)

CCSDS 910.2-G-1. *Standard Terminology, Conventions, and Methodology
(TCM) for Defining Data Services*. Green Book. November 1994.

CCSDS 910.3-G-1. *Cross Support Concept---Part 1: Space Link Extension
Services*. Green Book. May 1995.

CCSDS 910.4-B-1. *Cross Support Reference Model---Part 1: Space Link
Extension Services*. Blue Book. May 1996. (ISO 15396:1998.)

CCSDS A12.0-G-1. *CCSDS-Related Implementations*. Green Book. November
1996.

CCSDS A30.0-G-3. *CCSDS Glossary*. Green Book. July 1997.

[^1]: *Strategic Plan of the Consultative Committee for Space Data
    Systems*, December 1999.

[^2]: The documents included in this list are current as of the date of
    this Plan. The most recent versions of CCSDS documents can be found
    at http://www.ccsds.org/.