[MOIMS-NAV-EXEC] [EXTERNAL] Re: [CCSDS/RDM] Final Re-entry Data Message Red Book (v1.7) and CRM

Fri Jun 7 17:38:05 UTC 2019

Sounds like a good plan.

Daniel L. Oltrogge
Director, Center for Space Standards and Innovation
Analytical Graphics, Incorporated
Voice: 719-482-4552<tel:719-482-4552>   ҉   E-mail: oltrogge at agi.com<mailto:oltrogge at agi.com>

On Jun 7, 2019, at 18:29, Berry, David S (3920) <david.s.berry at jpl.nasa.gov<mailto:david.s.berry at jpl.nasa.gov>> wrote:

Dan, Alexandru:

Regarding THRUST_ACCELERATION: There are two instances of this keyword in the document (one in Table 3-3 and one in Annex A), and five total instances of the word "acceleration" (four associated with this keyword). The fifth instance of "acceleration" is irrelevant to this keyword. The Description in Table 3-3 states "The object’s acceleration due to in-track thrust used to propagate the state vector and covariance to NOMINAL_RENTRY_EPOCH (if a controlled re-entry)", which seems to clearly indicate the in-track nature of the acceleration. The Description in Annex A (the ICS Proforma) states "Object’s acceleration used in OD and propagation", i.e., it does not include the "in-track" qualification. Although Section 3 and Annex A are both normative, I think that implementers are more likely to use Table 3-3 than Annex A in creating an RDM processor. However, it would be easy to add the word "in-track" in Annex A; page numbering would NOT be affected.

Regarding RECOMMENDED_OD_SPAN: It's an optional keyword, and leaving it in the document seems fairly innocuous at this point. It's been in the document since RDM Draft 0 in July 2016. The keyword was used in some of the prototype RDM samples.

MY PROPOSAL:

1. THRUST_ACCELERATION: I add the word "in-track" to the instance in Annex A before sending the document to Mario for his Area Director Review.

2. RECOMMENDED_OD_SPAN: I suggest we leave it in the document.

Regards,
David

From: MOIMS-NAV-EXEC <moims-nav-exec-bounces at mailman.ccsds.org<mailto:moims-nav-exec-bounces at mailman.ccsds.org>> on behalf of "Alexandru Mancas (external)" <Alexandru.Mancas at esa.int<mailto:Alexandru.Mancas at esa.int>>
Date: Friday, June 7, 2019 at 5:10 AM
To: "Oltrogge, Daniel" <doltrogge at agi.com<mailto:doltrogge at agi.com>>
Cc: "moims-nav-exec at mailman.ccsds.org<mailto:moims-nav-exec at mailman.ccsds.org>" <moims-nav-exec at mailman.ccsds.org<mailto:moims-nav-exec at mailman.ccsds.org>>
Subject: [EXTERNAL] Re: [MOIMS-NAV-EXEC] [CCSDS/RDM] Final Re-entry Data Message Red Book (v1.7) and CRM

Dear Daniel,

My understanding is that at this point (after agency review and prototyping) we are dealing with editorial comments only. There were multiple opportunities to get technical comments during the White Book iterations. I think removing/re-scoping keywords is well beyond our current purpose, could result in the need to redo at least some of the prototyping, and set back the entire process by at least one year. If you still have technical points you do not think are addressed in Red Book 1.7, I suggest we deal with those in RDM v2.

Best regards
Alexandru Mancas
______________________________________________________________

ir Alexandru Mancas
GMV Insyen AG
Space Debris Monitoring Systems Engineer
Space Debris Office (OPS-SD) | Directorate of Operations

ESA/ESOC
Robert-Bosch Str. 5
64293, Darmstadt, Germany
alexandru.mancas at esa.int<mailto:alexandru.mancas at esa.int> | www.esa.int
T +49 6151 90 2205

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From:        "Oltrogge, Daniel" <doltrogge at agi.com<mailto:doltrogge at agi.com>>
To:        "Alexandru Mancas (external)" <Alexandru.Mancas at esa.int<mailto:Alexandru.Mancas at esa.int>>, "moims-nav-exec at mailman.ccsds.org<mailto:moims-nav-exec at mailman.ccsds.org>" <moims-nav-exec at mailman.ccsds.org<mailto:moims-nav-exec at mailman.ccsds.org>>
Date:        07/06/2019 11:56
Subject:        RE: [MOIMS-NAV-EXEC] [CCSDS/RDM] Final Re-entry Data Message Red Book (v1.7) and CRM

________________________________

I want to get to the beer stage as well, but I hope that we can first iterate on these comments and proposed dispositions.

Regarding THRUST_ACCELERATION, if the intent is that it be limited to in-track, then that should more clearly be stated.  I believe the reason this was constrained in that way in the CDM is because that is what the 18th can model.

Regarding the RECOMMENDED_OD_SPAN, the suggestion that this should be there to be consistent with the CDM is confusing to me, in that there is other content in the CDM that is not incorporated in the RDM as well.  I’m not seeing the benefit of this keyword being included in the RDM.

Dan

Daniel L. Oltrogge
Director, Center for Space Standards and Innovation
Analytical Graphics, Incorporated
Voice: 719-482-4552   ҉   E-mail: oltrogge at agi.com<mailto:oltrogge at agi.com>

From: MOIMS-NAV-EXEC <moims-nav-exec-bounces at mailman.ccsds.org<mailto:moims-nav-exec-bounces at mailman.ccsds.org>> On Behalf Of Alexandru Mancas (external)
Sent: Friday, June 7, 2019 3:10 AM
To: moims-nav-exec at mailman.ccsds.org<mailto:moims-nav-exec at mailman.ccsds.org>
Subject: [MOIMS-NAV-EXEC] [CCSDS/RDM] Final Re-entry Data Message Red Book (v1.7) and CRM

Dear CCSDS NAVigators,

Thank you all for your very hard work proofreading Red Book 1.6 of the Re-entry Data Message. I have incorporated your comments in the final RDM Red Book, version 1.7.

Please find attached RDM Red Book 1.7 and the CRM with all the comments and my answers.

David, please let me know if there are any more steps needed on my side to start the ball rolling on the publication process.

Best regards
Alexandru Mancas

______________________________________________________________

ir Alexandru Mancas
GMV Insyen AG
Space Debris Monitoring Systems Engineer
Space Debris Office (OPS-SD) | Directorate of Operations

ESA/ESOC
Robert-Bosch Str. 5
64293, Darmstadt, Germany
alexandru.mancas at esa.int<mailto:alexandru.mancas at esa.int> | www.esa.int
T +49 6151 90 2205

This message and any attachments are intended for the use of the addressee or addressees only. The unauthorised disclosure, use, dissemination or copying (either in whole or in part) of its content is not permitted. If you received this message in error, please notify the sender and delete it from your system. Emails can be altered and their integrity cannot be guaranteed by the sender.

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