[Sls-slp] FW: Jan 20 CCSDS SLP WG Telecon

Marco Rovatti Marco.Rovatti at esa.int
Fri Jan 20 16:23:22 UTC 2023


Dear Greg and all,
Please find attached Brice's presentation provided during today telecon.


Regards
Marco

From: Brice Dellandrea <Brice.Dellandrea at esa.int>
Sent: 20 January 2023 13:39
To: Kazz, Greg (US 312B) <greg.j.kazz at jpl.nasa.gov>; Kazz, Greg (US 312B) via SLS-SLP <sls-slp at mailman.ccsds.org>; Peters, Kenneth J (US 3320) <kenneth.j.peters at jpl.nasa.gov>
Cc: Marco Rovatti <Marco.Rovatti at esa.int>; Gilles Nzokira <gilles.nzokira at ext.esa.int>
Subject: RE: Jan 20 CCSDS SLP WG Telecon

Dear all,

I am working in ESA on a communication relay satellite making use of Prox. Since we are using high-rate dissymmetric communications at long range and low FER we encountered a concern with the go-back-N mechanism of prox1. It works, but we had to be careful and the mission Prime implementing Prox1 did not see this constraint at first.

I guess this return of experience might deserve a clarification in the datalink layer of Prox1 so that future Users are aware of this feature.

I made a short presentation to present the concern. Could I have 15 minutes to present it?

With best regards,

[cid:image001.jpg at 01D92CD3.CB6202E0]
Brice Dellandrea
Lunar Pathfinder System Engineer
Commercialisation & Innovation Team (HRE-XI)
Directorate of Human Spaceflight & Robotic Exploration
European Space Research and Technology Centre (ESTEC)
Keplerlaan 1, PO Box 299
NL-2200 AG Noordwijk, The Netherlands


-----Original Appointment-----
From: Kazz, Greg (US 312B) <greg.j.kazz at jpl.nasa.gov<mailto:greg.j.kazz at jpl.nasa.gov>>
Sent: 19 January 2023 18:42
To: Kazz, Greg (US 312B); Brice Dellandrea; Kazz, Greg (US 312B) via SLS-SLP; Peters, Kenneth J (US 3320)
Subject: Jan 20 CCSDS SLP WG Telecon
When: 20 January 2023 07:00-09:00 (UTC-08:00) Pacific Time (US & Canada).
Where: Webex; https://jpl.webex.com/meet/gkazz

You may join for the PRox-1 discussion only, of course.


-----Original Appointment-----
From: Kazz, Greg (US 312B) <greg.j.kazz at jpl.nasa.gov<mailto:greg.j.kazz at jpl.nasa.gov>>
Sent: 04 January 2023 21:47
To: Kazz, Greg (US 312B); Kazz, Greg (US 312B) via SLS-SLP; Peters, Kenneth J (US 3320)
Subject: Jan 20 CCSDS SLP WG Telecon
When: 20 January 2023 07:00-09:00 (UTC-08:00) Pacific Time (US & Canada).
Where: Webex; https://jpl.webex.com/meet/gkazz<https://eur05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fjpl.webex.com%2Fmeet%2Fgkazz&data=05%7C01%7CMarco.Rovatti%40esa.int%7Cbb9b9775ae63411aed8308dafae34e19%7C9a5cacd02bef4dd7ac5c7ebe1f54f495%7C0%7C0%7C638098151486767824%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=6uKceRB5T9aikyz5HRTxevStMJc%2BNUVhv6lLt2Zi80Q%3D&reserved=0>

Dear SLP WG members,

Happy New Year 2023!

I would like to hold a series of telecons in preparation in order for us to be fully prepared for the Spring 2023 meeting in Huntsville, Alabama USA, later in May.

The topics I have so far are:

Brain Storm on the proposed additions to the Proximity-1 directives for Lunar operations

Concurrence on the pending changes to USLP in preparation for releasing the blue book for agency review

The URL below provides the SLP WG CWE location of both of these documents. Please review them and I appreciate your comments towards making them accurate and complete as possible.

The Proximity-1 directive word file URL is: https://cwe.ccsds.org/sls/docs/Forms/AllItems.aspx?RootFolder=%2Fsls%2Fdocs%2FSLS%2DSLP%2FMeeting%20Materials%2F2023%2FSpring%2FProximity%2D1%20Lunar%20Operations&View=%7BAE8FB44C%2DE80A%2D42CF%2D8558%2DFB495ABB675F%7D&<https://eur05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwe.ccsds.org%2Fsls%2Fdocs%2FForms%2FAllItems.aspx%3FRootFolder%3D%252Fsls%252Fdocs%252FSLS-SLP%252FMeeting%2520Materials%252F2023%252FSpring%252FProximity-1%2520Lunar%2520Operations%26View%3D%257BAE8FB44C-E80A-42CF-8558-FB495ABB675F%257D%26&data=05%7C01%7CMarco.Rovatti%40esa.int%7Cbb9b9775ae63411aed8308dafae34e19%7C9a5cacd02bef4dd7ac5c7ebe1f54f495%7C0%7C0%7C638098151486767824%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Y1qt791CxV7fayJ3tFiwXgWuoElnD0EH5PuBpVPRI3g%3D&reserved=0>

The current USLP draft blue book updates are at: https://cwe.ccsds.org/sls/docs/Forms/AllItems.aspx?RootFolder=%2Fsls%2Fdocs%2FSLS%2DSLP%2FMeeting%20Materials%2F2023%2FSpring%2FUSLP%20Draft%203%2E0&FolderCTID=0x012000439B56FF51847E41B5728F9730D7B55F&View=%7BAE8FB44C%2DE80A%2D42CF%2D8558%2DFB495ABB675F%7D<https://eur05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwe.ccsds.org%2Fsls%2Fdocs%2FForms%2FAllItems.aspx%3FRootFolder%3D%252Fsls%252Fdocs%252FSLS-SLP%252FMeeting%2520Materials%252F2023%252FSpring%252FUSLP%2520Draft%25203.0%26FolderCTID%3D0x012000439B56FF51847E41B5728F9730D7B55F%26View%3D%257BAE8FB44C-E80A-42CF-8558-FB495ABB675F%257D&data=05%7C01%7CMarco.Rovatti%40esa.int%7Cbb9b9775ae63411aed8308dafae34e19%7C9a5cacd02bef4dd7ac5c7ebe1f54f495%7C0%7C0%7C638098151486767824%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=DB1osDaWw8xT8FjtbvBia7oxT67T5%2FsELypjv84hJe8%3D&reserved=0>


Best regards,
Greg




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