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NASA Report to the CCSDS Management Council. Adrian J. Hooke Colorado Springs January 2007.

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NASA Reportto theCCSDS Management Council

Adrian J. Hooke

Colorado Springs

January 2007


As a consequence of an ongoing reorganization of the NASA Space Communications and Navigation (SCaN) Office in the NASA Space Mission Operations Directorate, Dr. Jack Kelley has been assigned to other duties. The NASA Data Standards program has been located in a new “SCaN Systems Planning” organization headed by Mr. John Rush, but a replacement for Dr. Kelley has still not been named. In the interim, Mr. Mike Kearney of NASA-MSFC has been named as the Acting NASA Principal Delegate for this meeting and will chair the CMC meeting.

Mr. Erik Barkley has assumed the position of Cross Support Services Area Director, replacing the retiring M. Gerard Lapaian of CNES.

Mr. Robert Bradford of NASA-MSFC retired from NASA; he has been temporarily replaced by Mr. Kelvin Nichols as acting chairman of the SANA Working Group.

Special efforts have been made in recent months to engage NASA Constellation Program and Johnson Space Center personnel in CCSDS activities, with a particular focus on the MOIMS-SM&C work. A significant number of these personnel actively participated in last week’s meeting.

While there has been no significant change ot the overall level of NASA resources committed to CCSDS from the NASA Data Standards program, several new NASA members will be participating in the working groups with funding from the Constellation program

Resources and Staffing


Current Area and WG Leadership Space Communications and Navigation (SCaN) Office in the NASA Space Mission Operations Directorate, Dr. Jack Kelley has been assigned to other duties. The NASA Data Standards program has been located in a new “SCaN Systems Planning” organization headed by Mr. John Rush, but a replacement for Dr. Kelley has still not been named. In the interim, Mr. Mike Kearney of NASA-MSFC has been named as the Acting NASA Principal Delegate for this meeting and will chair the CMC meeting.


NASA Goddard has established the “GSFC Communications, Standards and Technology Laboratory” (CSTL). It provides a location for testing and demonstration to support:

Space Communications and Navigation networking studies

Standards Technology development

Constellation program trade studies

Recent testing has included:

Software Defined Radio Functions

Low Density Parity Check (LDPC) Coding

Link Layer framing (AOS)/Channel Coding

Networking functionality

Disruption Tolerant Networking (DTN)

Applications

Asynchronous Messaging Service (AMS)

Ground Implementations

Space Link Extension (SLE)

NASA Marshall is considering approaches to introduce audio and video standards in support of human spaceflight for future missions. While it is clear that some control functions for audio and video applications should fall under MOIMS, addressing new technology protocols and selecting common COTS formats may be best served in dedicated audio or video groups. Input from the CCSDS community is welcome.

NASA Marshall organized a meeting at NASA JSC to stimulate Constellation Program participation in the CCSDS working groups. The meeting was successful and several new NASA participants from Constellation participated in last week’s working group meetings.

CCSDS Applications: 1


CCSDS Applications: 2 Standards and Technology Laboratory” (CSTL). It provides a location for testing and demonstration to support:

  • The NASA Johnson “Front End Processor Replacement Project” is Implementing SLE Transfer Services for the International Space Station (ISS)

    • ISS SLE Provider services will be installed at the two Space Network ground terminals at White Sands Complex (WSC), NM

    • Initial ISS SLE users will be the Johnson Space Center (JSC) Mission Control Center (MCC) in Houston, TX and the Marshall Space Flight Center in Huntsville, AL

    • Data rates will be low-rate S-band: 72 kb uplink and 192kb downlink

    • The White Sands SLE Transfer Services implementation will be managed by the MCC

      During the period from September 2006 through December 2006

    • The Second and final FEP design review was completed

    • Factory Acceptance Test on SLE Provider/User COTS vendor products was completed

      Future activities include:

    • Final development: January 2007 through Spring 2007

    • Integration and equipment installations at White Sands: Summer 2007 through Winter 2008

    • Transition to Operations: Spring 2008


NASA JPL reports that the 2010 NASA JUNO spacecraft to Jupiter will baseline all of the re-structured CCSDS link layer documents. It will also use unacknowledged CFDP to downlink files, but plans to continue use of the MRO style frame retransmission reliability approach.

The rate 1/2 LDPC code that is part of the JPL developed family of deep space LDPC codes (as documented in CCSDS 131.1-O-1, Low Density Parity Check Codes for Use in Near-Earth and Deep Space Applications. Orange Book. Issue 1. August 2006) has been selected by the NASA Constellation Program (CxP) as the preferred coding protocol for Lunar links. The CxP has also selected CCSDS-AOS as the bidirectional space link protocol, though the transfer of IP datagrams in the AOS frames will be accomplished by encoding them in a Frame relay/HDLC serial octet stream rather than the CCSDS-preferred Encapsulation mechanisms.

JPL reports that a joint demonstration of the new CCSDS Service Management standards, using prototypes developed by JPL, ESA, and JAXA, is planned for the next period. This is intended to demonstrate interoperability among these separate implementations by scheduling and configuring "shadow tracking" on a small selected set of missions.

The JPL official “flight system design principles” now includes a reference to the JPL Office of the Chief Engineer (OCE) web site for various mandatory standards. An updated set of NASA Preferred Technical Standards, that contains all of the key CCSDS restructured standards, CFDP, and SLE are now identified as JPL Mandated on the JPL OCE web site.

The architecture design principles, as documented in the CCSDS Reference Architecture for Space Data Systems (RASDS, which is now out for agency review) have been incorporated into the latest JPL Advanced System Engineering Practices.

CCSDS Applications: 3


NASA decided to drop its OMG membership from the “Domain” level ($35K/year) to the “Government” level ($12K/year).

The OMG has offered the following possibilities for holding future joint meetings:

March 10-14, 2008 OMG - Technical Meeting - Washington, DC USA

June 23-27, 2008 OMG - Technical Meeting - Canada (City TBD)

September 22-26, 2008 OMG - Technical Meeting – Orlando, FL USA

December 8-12, 2008 OMG - Technical Meeting - San Jose, CA USA

These do not appear to be compatible venues

The OMG’s General Counsel granted CCSDS the permission to republish the XTCE specification (when published by OMG as an Available Specification) as a CCSDS Recommended Standard, under a CCSDS cover sheet.

The OMG’s General Counsel agreed to draft the essential contents of an updated CCSDS-OMG “MOU” prior to this meeting. Instead, the following communication was received on 24 January:

“Joint Projects - The OMG Space Domain Task Force has been working on several projects, and XTCE is certainly the most significant result so far. We are pleased to see the activity and energy of the participants in the OMG Space Task Force. Of course, in the OMG process, the members drive and perform the work, so we are monitoring it to provide any encouragement and support that we can. “

“If you have suggestions for ways that OMG and CCSDS can work together and/or define their separate "jurisdictions", we would be happy to prepare a formal agreement embodying them. Nonetheless, we believe that the relationship is already working well, and we look forward to its continuation.”

OMG Relationships


NASA tentatively proposes to host the Spring 2008 CCSDS meeting by returning to the Penrose House in Colorado Springs as follows:

Technical meetings: 06-10 May, 2008

CESG Meeting: 13 May, 2008

CESG/CMC/ISO Meetings: 14-16 May, 2008

While NASA may still consider other options (should something attractive arise in the May 2008 timeframe) we would appreciate having CMC concurrence that a return to this location would be acceptable on the above dates.

NASA strongly recommends that the location and dates of the Fall 2008 meeting should be tentatively agreed at this meeting

Future Meeting Hosting


Chinese Contact meeting by returning to the Penrose House in Colorado Springs as follows:

Date: Thu, 23 Nov 2006 13:06:29 +0800 From: "½¾²" <[email protected]> To: <[email protected]> CC: <[email protected]> Subject: relationship Dear Mr. Adrian J. Hooke:

First I want to say apology for delay to reply due to my business trip during this two weeks.

Here I will explain the relationship between me, who belongs to China Astronautics Standards Institute and Mr. Zhao Heping, who belongs to Chinese Academy of Space Technology:

1. We are designated by China government to take charge all ISO/TC20/SC13 transactions, including vote on standards and specifications.

2. Chinese Academy of Space Technology is the Observer Agencies of CCSDS. Mr. Zhao Heping is appointed to take charge such issues.

3. My department pays more attention to standard and specification and Mr. Zhao¡¯ department focuses on Space Technology.

Maybe it makes your a little confusion about me and Mr. Zhao Heping, since there is a close relationship between ISO/TC20/SC13 and CCSDS. Any question, just feel free to contact me.

By the way, please note my colleague, Ms. Lu Xin, has changed her mail to

[email protected]

Many thanks.

Best Regards

Lu Jing


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