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NASA DATA SYSTEMS STANDARDS PROGRAM
(NDSSP)CCSDS Reorganization(US Proposal)

• Andrew Z. Dowen
• NDSS Program Manager
• 818/354-8191
• Andrew.Z.Dowen_at_jpl.nasa.gov

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AGENDA

• Drivers for change
• NASAs future mission requirements
• Technical discipline alignment
• Current Organization Work Item Allocation
• Results of Re-Organization
• New Organization
• Re-allocation of Work Items
• Panel SLC (Space Link Communications)
• Content and Deliverables
• Panel SDT (Space Data Transfer)
• Content and Deliverables
• Panel SSA (Space System Applications)
• Content and Deliverables

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NASAS FUTURE MORE MISSIONS, MORE COMPLEXITY

• INCREASED SPACE SEGMENT CAPBILITIES
• More miniaturization, more missions, more bang
  for the buck
• Higher date rates, more powerful onboard
  processing
• Constellations and Formation Flying
• Inter Spacecraft Communications
• Positioning Relative to Each Other
• Autonomous Exploration
• Less reliance on Joystick Operations.
• Dynamic Response to Environment (Precision EDL,
  Rendezvous Docking)
• Highly networked
• Re-configurable web of orbiting and landed
  sensors for in-situ, long-term and detailed
  observation, prediction and analysis.
• HIGHLY DISTRIBUTED MULTI-ORGANIZATION DESIGN AND
  OPERATIONS TEAMS

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Results of Re-Organization

• New Organization
• Associates related tasks and technical
  disciplines within new organizational elements
• RE-Allocates work items
• New Panels clarify responsibilities for wireless
  links, data networking services, and end-to-end
  application services
• Groups tasks in related technical domains
• Provides for better skills mix within Panels
• Maintains most interfaces within Panels, but some
  cross-support needed
• Finally provides a clear home for architecture
  and end to end activities
• Provides for end to end view for some services
• Cross-cuts space / ground boundary
• Clean boundary between Applications and
  Communications
• Clearly describes the role of the Technical
  Steering Group (TSG)

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Consultative Committee for Space Data Systems
(CCSDS) Current Organization Work Item
Allocation
MANAGEMENT
COUNCIL
XML WG Arch WG S/C MC WG
P
A
N
E
L

3
P
A
N
E
L

2
P
A
N
E
L

1
P
A
N
E
L

3
P
A
N
E
L

2
P
A
N
E
L

1
INFORMATION
SPACE LINK EXTENTION
SPACE
INTERCHANGE
COMMUNICATIONS
SERVICES
Pgm A - Data Admin Data Management Pgm B -
Data Structures Pgm C - Languages Pgm D - S/W
Implementation Pgm E - Data Archives
P1A - Space Links P1B - Coding P1C -
Compression P1E - RF Modulation P1F - Upper
Layer Protocols Services P1J -
Navigation P1K - S/C Onboad I/F
WG 1 - SLE Mgmt Svc Ref Arch WG 2/3 - SLE
Transfer Svc Spec WG 5 - SLE Transfer Svc API
Security
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Consultative Committee for Space Data Systems
(CCSDS) New Organization Re-Allocation of Work
Items
PANEL SLC Space Link Communications

• WG E Data Archiving

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Results of Re-Organization

• Re-allocation of Work Items
• Conceptual Approach
• Associate like items of work based upon the ISO
  layer the work is at and affinities with similar
  tasks
• Include consideration of the service interfaces
  elements expose to users
• Where cross panel considerations arise ensure
  that responsibility is clearly assigned to just
  one working group (e.g. Nav Trk has
  responsibility for their product files, the means
  to deliver them, and the link layer observables
  used to generate them)
• Rationale
• Panel SLC includes all link and physical layer
  work
• Panel SDT includes all network, transport and
  data transfer services, including their
  associated user applications
• Panel SSA includes all of the system level and
  applications level services

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Results of Re-Organization (Cont.)

• The Architecture Board is considered to be a
  permanent element of the MC
• Responsible for a clear description, evolution
  and control of the architecture
• Responsible for documenting and maintaining the
  documents related to the CCSDS Domain
  architecture
• Responsible to resolve architecture issues
  brought to it from MC and TSG
• Membership (approved by MC)
• Delegates nominated by the Panels based upon
  their technical expertise
• No more than 7 members
• Chief Architect
• Selected from and by members
• Two years nominal term, may be extended

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Results of Re-Organization (Cont.)

• Technical Steering Group (TSG) is a truly
  technical entity
• Responsible for
• Cross panel system engineering
• Architecture implementation
• TSG Chairman appointed by MC
• Two years nominal term, may be extended
• Responsible for technical progress and direction
  of TSG tasks
• Promotes cross-panel awareness of the status and
  nature of the CCSDS program
• Prepares executive summary of TSG progress and
  reports to the MC
• Resolves cross panel issues
• TSG Members
• Panel and sub-panel chairs or their nominees
• Selected technical experts
• Others by invitation

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Results of Re-Organization (Cont.)

• Panel SLC (Space Link Communications)
• Content
• WG A - Space Links
• WG B Coding
• WG C Compression
• WG D - RF Modulation
• WG E - Optical Comm
• Includes all physical and link layer standards
• Supports any future work across coding /
  modulation boundary, and any interactions between
  compression, link and coding layers
• Compression is included because it has skills in
  common with coding and there may be interactions
• Includes new optical comm physical and link layer
  standards as they are required and any mods to
  existing standards to accommodate characteristics
  of optical comm

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Results of Re-Organization (Cont.)

• Panel SLC (Space Link Communications)
• Products
• WG A - Space Links
• Revised Prox-1 Red Book and Green Book for Space
  Link Identifiers, include SAMU
• Update Prox-1 Reference Implementation to conform
  to revised Red Book
• Studies of Unified Link Layer DVB-S
• Application Profiles for Mars
• WG B Coding
• Coding Green Book
• Study of high rate codes and integrated coding
  modulation approaches
• WG C Compression
• WG D - RF Modulation
• Modulation Green Book with Power and Bandwidth
  Efficient modulation approaches
• Studies of H/W distortions and effects of UWB
  emissions
• WG E - Optical Comm
• Optical Comm coping and modulation standards
• Pink Sheets for other link layer books as needed

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Results of Re-Organization (Cont.)

• Panel SDT (Space Data Transfer)
• Content
• WG A - Upper Layer Protocols Internet Services
• WG B - S/C Onboard I/F, including Message
  Transfer Middleware Svcs
• WG C - Product Transfer Svcs (include SLE CFDP)
• Includes all network, transport, and upper layer
  data transfer standards and any related data
  transfer application interfaces
• Includes all SCPS protocols and data transfer
  applications, gets support from Panel SSA for
  security
• Includes S/C onboard I/F includes all layers up
  to message transfer and middleware from old P1K.
  includes S/C specific services like CDA, will
  get support from Panel SSA for S/C Mon Con
  Deliverables
• Supports Panel SSA for message file transfer
  and for service product transfer (Operability,
  Nav Tracking)
• Includes new IPN protocols such as bundling and
  any related data transfer application interfaces
• Will include interfaces to commodity service
  providers as needed

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Results of Re-Organization (Cont.)

• Panel SDT (Space Data Transfer)
• Deliverables
• WG A - Upper Layer Protocols Internet Services
• SCPS extensions and sustainment
• Distribute support infusion
• WG B - S/C Onboard Interfaces, including Message
  Transfer Middleware Svcs
• Draft Red Books for SOIF Data Link and Physical
  layers
• Draft red Books for SOIF Network and Transport
  layers
• Draft Red Book for Message Transfer Service
• Develop reference implementation of Message
  Transfer Service API
• Internet in Space Application profile
• WG C - Product Transfer Svcs (include SLE CFDP)
• SLE Transfer Service Blue Books (RAF, RCF, CLTU)
• Draft CFDP revised Red Book with extended
  procedures Store Forward Overlay (SFO)
• Update Reference Implementation to conform to new
  Red Book
• Draft Red Book for File and Data Product
  Management

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Results of Re-Organization (Cont.)

• Panel SSA (Space System Applications)
• Content
• WG A - Operability Standards (to include S/C MC)
• WG B - Service Request Management (include XML)
• WG C - Tracking Navigation
• WG D Security
• WG E Data Archiving
• Operability Standards will include S/C Monitor
  and Control as well as looking at end to end
  issues like power and thermal management, data
  management accountability, distributed system
  management
• Service Request Management interfaces focus on
  operational interfaces developed using XML. This
  will include common data dictionary, glossary,
  operational interface identification and access
  mechanisms, and basic standards for operational
  information exchange.
• Tracking and Navigation includes orbital data and
  ephemeris exchange, gets support from SDT for
  data transfer and SLC for observables
• Security is a cross-cutting concern at all layers
  of the stack, provides support to other Panels as
  needed

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Results of Re-Organization (Cont.)

• Panel SSA (Space System Applications)
• Deliverables
• WG A - Operability Standards (to include S/C MC)
• Study on applicability of monitor control
  approaches to space
• WG B - Service Request Management (include XML)
• Draft SLE SM/SR XML specification
• Draft standard data element glossary
  specification using XML
• Draft standard schema for packaging data in XML
  for interchange
• WG C - Tracking Navigation
• Draft Red Book for attitude, environmental models
  and astrodynamical constant interchange
• Blue Book for Trajectory Data interchange,
  including transfer service spec
• WG D Security
• Updated Security Green Book
• Draft Space Communication System Security Threat
  Assessment
• WG E Data Archiving