[Cesg-all] Results of CESG Polls closing 18 October 2019
CCSDS Secretariat
thomas.gannett at tgannett.net
Mon Oct 21 07:06:20 UTC 2019
CESG E-Poll Identifier: CESG-P-2019-10-001
Approval to release CCSDS 121.0-P-2.1, Lossless
Data Compression (Pink Sheets, Issue 2.1) for CCSDS Agency review
Results of CESG poll beginning 4 October 2019 and ending 18 October 2019:
Abstain: 0 (0%) Approve
Unconditionally: 5 (100%) (Merri, Shames, Burleigh, Cola, Calzolari)
Approve with Conditions: 0 (0%) Disapprove with Comment: 0 (0%)
CONDITIONS/COMMENTS:
Scott Burleigh (Approve
Unconditionally): Note, not a condition: on
pages 2-3 and 5-6, "File Deliver Protocol" should
be changed to "File Delivery Protocol".
Total Respondents: 5
No response was received from the following Area(s):
CSS
SOIS
SECRETARIAT INTERPRETATION OF RESULTS: Approved Unconditionally
PROPOSED SECRETARIAT ACTION: Generate CMC poll
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CESG E-Poll Identifier: CESG-P-2019-10-002
Approval to publish CCSDS 500.0-G-4, Navigation
DataDefinitions and Conventions (Green Book, Issue 4)
Results of CESG poll beginning 4 October 2019 and ending 18 October 2019:
Abstain: 0 (0%) Approve
Unconditionally: 4 (80%) (Merri, Burleigh, Cola, Calzolari)
Approve with Conditions: 1 (20%) (Shames)
Disapprove with Comment: 0 (0%)
CONDITIONS/COMMENTS:
Peter Shames (Approve with Conditions): I
skimmed the document and looked, in particular, at the stated contents:
b)Section 3 provides foundational information on
the data types and units served by the navigation messages.
c)Section 4 provides details about coordinate
frames, time systems, astrodynamics constants,
environmental models, and other ancillary
concepts important in spacecraft navigation.
d)Section 5 discusses properties and processes of
the entities that participate in a navigation data exchange.
e)Section 6 discusses the types and associated
attributes of measurements that may be made during a navigation session.
I am left wondering is this document is really
best characterized as a Green Book, or if its
contents and intended use really make it a
Magenta Book in nature? Magenta Books, after all, state this:
6.1.4.3 Recommended Practices are normative
and have prescriptive content but are typically
not directly implementable for interoperability
or cross support. They may be of several types:
a) specifications that are
foundational for other specifications, but
within themselves do not define content in a way
that allows independent development and testing
of separate but interoperable systems;
Have you considered characterizing this as an MB?
Scott Burleigh (Approve
Unconditionally): Note, not a condition: on
page 4-10, for clarity, the x-axis of the graph
should be labeled "difference in seconds" or something to that effect.
Total Respondents: 5
No response was received from the following Area(s):
CSS
SOIS
SECRETARIAT INTERPRETATION OF RESULTS: Approved with Conditions
PROPOSED SECRETARIAT ACTION: Generate
CMC poll after conditions have been addressed
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CESG E-Poll Identifier: CESG-P-2019-10-003
Approval to publish CCSDS 500.1-G-2,
Delta-DORTechnical Characteristics and Performance (Green Book, Issue 2)
Results of CESG poll beginning 4 October 2019 and ending 18 October 2019:
Abstain: 0 (0%) Approve
Unconditionally: 5 (100%) (Merri, Shames, Burleigh, Cola, Calzolari)
Approve with Conditions: 0 (0%) Disapprove with Comment: 0 (0%)
Total Respondents: 5
No response was received from the following Area(s):
CSS
SOIS
SECRETARIAT INTERPRETATION OF RESULTS: Approved Unconditionally
PROPOSED SECRETARIAT ACTION: Generate CMC poll
* * * * * * * * * * * * * * * * * * * * * * * *
CESG E-Poll Identifier: CESG-P-2019-10-004
Approval to publish CCSDS 508.1-B-1, Re-entry Data Message (Blue Book, Issue 1)
Results of CESG poll beginning 4 October 2019 and ending 18 October 2019:
Abstain: 1 (20%) (Calzolari)
Approve Unconditionally: 3 (60%) (Merri, Burleigh, Cola)
Approve with Conditions: 1 (20%) (Shames)
Disapprove with Comment: 0 (0%)
CONDITIONS/COMMENTS:
Peter Shames (Approve with Conditions): In
Sec B.1.2, re consequnce of not applying
security, isn't it possible that an RDM could be
tampered with and there is no mechanism defined
to detect this? This is surely a more general
concern in CCSDS in general, but the addition of
a simple checksum, or a digital signature, would
provide a significant boost in data confidence.
In sec B2, the last paragraph, there is the statement:
"The registration rule for new entries in the
registry is the approval of new requests by the
CCSDS Area or Working Group responsible for the
maintenance of the RDM at the time of the request. "
I am left wondering "new entries in which
registry"? AFAIK there is no new registry
specified in this document. Is this intended to
reference the registry of the XML spec? If so,
that should be clear. Likewise any process for
updating the spec and marking a new version.
Total Respondents: 5
No response was received from the following Area(s):
CSS
SOIS
SECRETARIAT INTERPRETATION OF RESULTS: Approved with Conditions
PROPOSED SECRETARIAT ACTION: Generate
CMC poll after conditions have been addressed
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