[CESG] CESG-P-2022-12-004 Approval to publish CCSDS 500.2-G-3, Navigation Data Messages Overview (Green Book, Issue 3)

Sat Feb 11 17:53:12 UTC 2023

Dear CESG Members,

Conditions for approval of CCSDS 500.2-G-3, Navigation Data Messages Overview (Green Book, Issue 3) have been disposed to the satisfaction of the AD(s) who voted to approve with conditions. The Secretariat will now proceed with CMC polling to authorize publication.
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From:	Berry, David S (US 3920) <david.s.berry at jpl.nasa.gov>
Sent:	Friday, February 10, 2023 8:32 PM
To:	CCSDS Rapporteur; secretariat at mailman.ccsds.org
Cc:	Barkley, Erik J (US 3970); EXTERNAL-Zimmerman, Patrick L (US 9120-NASA)
Subject:	FW: [EXTERNAL] RE: [Secretariat] In Response to Conditions Raised in CESG-P-
2022-12-004 Approval to publish CCSDS 500.2-G-3, Navigation Data Messages 
Overview (Green Book, Issue 3)
Attachments:	500x2g21_CESG_Approval-withberrysuggestions.doc

Categories:	Poll Condition Closure

Tom:

Regarding the conditions raised in CESG-P-2022-12-004 Approval to publish CCSDS 500.2-G-3, 
Navigation Data Messages Overview (Green Book, Issue 3), I have attached the copy of the document 
with revisions approved by Erik Barkley (initiator of the conditions), and Patrick Zimmerman (Lead Editor 
for the document). This revision also addresses Jonathan Wilmot's suggestion.

I am hopeful that with these revisions the document can now proceed to the CMC "Approval to Publish" 
Poll.

Regards,
David

On 2/1/23, 3:42 PM, "Barkley, Erik J (US 3970)" <erik.j.barkley at jpl.nasa.gov 
<mailto:erik.j.barkley at jpl.nasa.gov>> wrote:

David,

The updates are fine with me. 

Thank you,
-Erik

-----Original Message-----
From: Berry, David S (US 3920) <david.s.berry at jpl.nasa.gov <mailto:david.s.berry at jpl.nasa.gov>> 
Sent: Wednesday, February 1, 2023 15:04
To: Barkley, Erik J (US 3970) <erik.j.barkley at jpl.nasa.gov <mailto:erik.j.barkley at jpl.nasa.gov>>; 
EXTERNAL-Zimmerman, Patrick L (US 9120-NASA) <patrick.zimmerman at nasa.gov 
<mailto:patrick.zimmerman at nasa.gov>>
Subject: FW: [EXTERNAL] RE: [Secretariat] In Response to Conditions Raised in CESG-P-2022-12-004 
Approval to publish CCSDS 500.2-G-3, Navigation Data Messages Overview (Green Book, Issue 3)

Erik, Patrick:

In response to my request below, Tom Gannett sent me the approval copy of the "Navigation Data 
Messages Overview" Green Book. Based on the conditions set by Erik, I have made some suggested edits 
in the document. It is my hope that these suggestions will address Erik's conditions and we can proceed 
to the CMC Poll for the document. Change tracking is on.

Erik: Please let Patrick and me know if these suggestions adequately address your concerns. If not, 
please let us know what needs to be added/subtracted/changed.

Patrick: Please let Erik and me know if these suggestions are acceptable to you as the document Lead 
Editor.

Note that I also addressed Jonathan Wilmot's comment. In my opinion, Peter's comments are too non-
specific to be actionable (and the material about which he commented has been in all prior editions of 
the document).

Thanks,
David

On 2/1/23, 11:30 AM, "Thomas Gannett" <thomas.gannett at tgannett.net 
<mailto:thomas.gannett at tgannett.net> <mailto:thomas.gannett at tgannett.net 
<mailto:thomas.gannett at tgannett.net>>> wrote:

Attached.

Logothete, L.L.C.
thomas.gannett at tgannett.net <mailto:thomas.gannett at tgannett.net> 
<mailto:thomas.gannett at tgannett.net <mailto:thomas.gannett at tgannett.net>>
+1 443 472 0805

-----Original Message-----
From: Secretariat [mailto:secretariat-bounces at mailman.ccsds.org <mailto:secretariat-
bounces at mailman.ccsds.org> <mailto:secretariat-bounces at mailman.ccsds.org <mailto:secretariat-
bounces at mailman.ccsds.org>>] On Behalf Of Berry, David S (US 3920) via Secretariat
Sent: Wednesday, February 01, 2023 2:01 PM
To: secretariat at mailman.ccsds.org <mailto:secretariat at mailman.ccsds.org> 
<mailto:secretariat at mailman.ccsds.org <mailto:secretariat at mailman.ccsds.org>>; Barkley, Erik J (US 
3970)
Cc: EXTERNAL-Zimmerman, Patrick L (US 9120-NASA)
Subject: [Secretariat] In Response to Conditions Raised in CESG-P-2022-12-004 Approval to publish 
CCSDS 500.2-G-3, Navigation Data Messages Overview (Green Book, Issue 3)

Dear Secretariat (Tom):

The topic of the conditions raised on subject poll came up at our recent CCSDS standards meetings here 
at JPL.

The Nav WG is aware of the events described in the referenced CPIF, and will plan to avoid 
conflicting/duplicate event definitions in the Navigation Events Message. If you could provide us with 
the Green Book review copy, we will add text to that effect in the NEM section of the document, and 
remove text that appears to conflict with the CPIF. We can also address Jonathan Wilmot's 
recommendation as well.

Note that the Navigation Events Message, while it is an approved project, has not yet commenced 
serious development due to a higher priority of the Lead Editor. Accordingly, we are well positioned to 
be able to avoid conflicts with the CPIF. 

Hopefully the above measures will resolve the concerns that led to the conditions. Please advise if 
further action is necessary.

Regards,
David

P.S.: While looking at the CPIF, I noticed that the registry referred to in Annex B 
https://urldefense.us/v3/__https://sanaregistry.org/r/Comms_Planning_Info_Assn_Kinds/__;!!PvBDto6
Hs4WbVuu7!dHg34A418giJ6u1_4O0AIyGJuNO_5LI5HPqSCbfsG3XrHbotDKKM6aFz3EboGZr-_XqMDUOC$ 
<https://urldefense.us/v3/__https://sanaregistry.org/r/Comms_Planning_Info_Assn_Kinds/__;!!PvBDto
6Hs4WbVuu7!dHg34A418giJ6u1_4O0AIyGJuNO_5LI5HPqSCbfsG3XrHbotDKKM6aFz3EboGZr-
_XqMDUOC$> 
<https://urldefense.us/v3/__https://sanaregistry.org/r/Comms_Planning_Info_Assn_Kinds/__;!!PvBDto
6Hs4WbVuu7!dHg34A418giJ6u1_4O0AIyGJuNO_5LI5HPqSCbfsG3XrHbotDKKM6aFz3EboGZr-
_XqMDUOC$ 
<https://urldefense.us/v3/__https://sanaregistry.org/r/Comms_Planning_Info_Assn_Kinds/__;!!PvBDto
6Hs4WbVuu7!dHg34A418giJ6u1_4O0AIyGJuNO_5LI5HPqSCbfsG3XrHbotDKKM6aFz3EboGZr-
_XqMDUOC$>> is "Content not found". I also noticed that the word "celestial" has several occurrences 
of a misspelling "celesital". Probably these are easy to fix without a formal corrigendum.

On 1/18/23, 10:22 AM, "CCSDS Secretariat" <thomas.gannett at tgannett.net 
<mailto:thomas.gannett at tgannett.net> <mailto:thomas.gannett at tgannett.net 
<mailto:thomas.gannett at tgannett.net>> <mailto:thomas.gannett at tgannett.net 
<mailto:thomas.gannett at tgannett.net> <mailto:thomas.gannett at tgannett.net 
<mailto:thomas.gannett at tgannett.net>>>> wrote:

Dear Document Rapporteur,

The CESG poll to approve publication of CCSDS 500.2-G-3, Navigation Data Messages Overview (Green 
Book, Issue 3) concluded with conditions. Please negotiate disposition of the conditions directly with the 
AD(s) who voted to approve with conditions and CC the Secretariat on all related correspondence.

CESG E-Poll Identifier: CESG-P-2022-12-004 Approval to publish CCSDS 500.2-G-3, Navigation Data 
Messages Overview (Green Book, Issue 3)

Results of CESG poll beginning 27 December 2022 and ending 17 January 2023:

Abstain: 0 (0%)
Approve Unconditionally: 5 (83.33%) (Merri, Duhaze, Shames, Aguilar Sanchez, Wilmot) Approve with 
Conditions: 1 (16.67%) (Barkley) Disapprove with Comment: 0 (0%) 

CONDITIONS/COMMENTS:

Erik Barkley (Approve with Conditions): With respect to the in-development NEM (Navigation Events 
Message), I suggest that the NAV WG take a look at CCSDS 902.2-B-1, Communications Planning 
Information Format (CPIF). Based on the brief description of the NEM, it seems likely that many of the 
items planned to be reported in the NEM are already addressed in the CPIF. Also, the CPIF addresses the 
use case of observing apertures on celestial bodies other than earth. I think it wise to check the planned 
NEM content and compare against the published CPIF to help ensure that CCSDS does not produce 
duplicative standards. 

Peter Shames (Approve Unconditionally): There are a number of things in this document that I think are 
awkward. All of the defined terms include embedded notes that are several times the length of the 
fundamental def. The figures are some weird mix un-aligned with any style I can identify, and what I 
think are data objects are rendered in at least 2 different forms.

Jonathan Wilmot (Approve Unconditionally): Minor comment in section 3.2.1. The statement "The 
exchange of navigation data messages is most likely to take place after level-0 processing of spacecraft 
telemetry" seems out of context and level-0 is not defined. Recommend just removing the statement.

Total Respondents: 6

No response was received from the following Area(s):

SIS

SECRETARIAT INTERPRETATION OF RESULTS: Approved with Conditions
PROPOSED SECRETARIAT ACTION: Generate CMC poll after conditions have been addressed

* * * * * * * * * * * * * * * * * * * * * * * *

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