<span style=" font-size:10pt;font-family:sans-serif">Dear Peter, </span>
<br><span style=" font-size:10pt;font-family:sans-serif">I take note of
the NASA Position Paper that you delivered with your e-mail on 3rd April.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">I remark that
the right forum for an Agency's position paper is within the affected WG(s)
and Area. Only after the relevant technical discussion in those forums
has taken place , the CESG may/will intervene, if needed.</span>
<br><span style=" font-size:10pt;font-family:sans-serif">The CESG is ,
in fact, supposed to sort out technical issues that may arise
between Areas ( or between WGs). It is not supposed to decide upon
a roadmap for technical documentation, when that roadmap – which
entails the way forward, the concept papers(s), the new projects, etc.
- needs to be produced as the result of an Agency's position paper.
</span>
<br><span style=" font-size:10pt;font-family:sans-serif">It is only within
the WGs that all (interested) Agencies are represented and can fairly support
the discussion.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">I notice that
the NASA's Position Paper implies a re-assessment of the approach
for the (set of ) coding-related document(s), whilst the existing
approach did get WG’s consensus in previous CCSDS sessions, notably Berlin
and Mountain View, if I remember well. </span>
<br><span style=" font-size:10pt;font-family:sans-serif">Accordingly, I
request that whichever re-assessment is supposed to be done now , it shall
be done <i>first </i>in the appropriate forum (=WG/Area). </span>
<br><span style=" font-size:10pt;font-family:sans-serif">Again, the CESG
will then discuss the outcome of the WGs’ re-assessment, if needed.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Concerning the
unresolved Poll for the DBV-S2 standard, which has been produced according
to the existing roadmap, I do not see another option than escalating the
decision to the CMC, given that at this point in time this is no longer
a technical discussion, and that there is no consensus within the CESG</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Kind regards.</span>
<br><span style=" font-size:10pt;font-family:sans-serif">Margherita</span>
<br><span style=" font-size:10pt;font-family:sans-serif">--------------------------------------------------------------<br>
</span><span style=" font-size:8pt;color:#00a1e0;font-family:Verdana"><b>Margherita
di Giulio</b></span>
<br><span style=" font-size:8pt;color:#5f5f5f;font-family:Verdana">Ground
Station Systems Division</span>
<br><span style=" font-size:8pt;color:#5f5f5f;font-family:Verdana">Backend
Software Section (OPS-GSB)</span>
<br>
<br>
<br><span style=" font-size:8pt;color:#5f5f5f;font-family:Verdana"><b>European
Space Agency ESA/ESOC</b><br>
Robert-Bosch-Str. 5<br>
D-64293 Darmstadt - Germany<br>
Tel: +49-6151-902779<br>
e-mail: Margherita.di.Giulio@esa.int</span><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif"><br>
<br>
</span>
<br>
<br>
<br>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">From:
</span><span style=" font-size:9pt;font-family:sans-serif">"Shames,
Peter M (US 312B)" <peter.m.shames@jpl.nasa.gov></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">To:
</span><span style=" font-size:9pt;font-family:sans-serif">"Margherita.di.Giulio@esa.int"
<Margherita.di.Giulio@esa.int>, "CCSDS Engineering Steering
Group - CESG Exec" <cesg@mailman.ccsds.org></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Cc:
</span><span style=" font-size:9pt;font-family:sans-serif">"Massimo.Bertinelli@esa.int"
<Massimo.Bertinelli@esa.int>, "Moury Gilles" <Gilles.Moury@cnes.fr>,
"Hamkins, Jon (US 3300)" <jon.hamkins@jpl.nasa.gov>, "Andrews,
Kenneth S (US 332B)" <kenneth.s.andrews@jpl.nasa.gov>, "Victor
Sank" <victor.j.sank@nasa.gov>, "Kazz, Greg J (US 312B)"
<greg.j.kazz@jpl.nasa.gov>, "Bernie Edwards" <bernard.l.edwards@nasa.gov>,
"Lee, Dennis K (US 332G)" <dennis.k.lee@jpl.nasa.gov></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Date:
</span><span style=" font-size:9pt;font-family:sans-serif">03/04/2020
22:14</span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Subject:
</span><span style=" font-size:9pt;font-family:sans-serif">Re:
[EXTERNAL] [CESG] 131.3 unresolved Poll: SLS position paper</span>
<br>
<hr noshade>
<br>
<br>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Dear
Margherita and CESG members,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">During
yesterday's CESG WebEx I said that I would provide a revision of the original
NASA position paper on how to resolve this issue. That is attached.
It is a refinement of the position that we presented before, and
it specifically tries to address the technical issues that Gilles and others
have raised.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">You
will see that this is endorsed by the relevant set of NASA participants
in the RFM, C&S, SLP, and Opt WGs. They all had a role in refining
and reviewing these materials.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Lastly,
you will find in the backup an analysis showing the difference in outcome
between the approach proposed here and what would result from the present
trajectory as documented in Gilles note. We all believe that what
was, in effect, implied by the changes to the DBV-S2 standard really represent
what should be an architecturally significant shift in how the SLS standards,
as a group, may be applied to future missions. </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">We
will be missing a significant opportunity if we do not take the time now
to adopt this as a uniform position across all of the affected SLS standards.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">While
we all must respect the crucial role of the CCSDS Working Groups in developing
and validating technically sound standards, we must also remember that
the CESG has been assigned the role for ensuring technical quality, coherence,
and consistency across the standards and across the areas.</span></p>
<br><span style=" font-size:12pt"><b>2.3.2.3 CESG Responsibilities </b></span>
<br><span style=" font-size:12pt">The CESG is specifically responsible
for the following: </span>
<br><span style=" font-size:12pt">a) maintaining and upholding the
overall technical quality and consistency of the evolving set of CCSDS
Recommended Standards and Practices; </span>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">And
that required CESG review is the context within which these issues were
identified. This is not just a Working Group issue.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Best
regards, Peter</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri"><b>From:
</b>CESG <cesg-bounces@mailman.ccsds.org> on behalf of Gilles Moury
<Gilles.Moury@cnes.fr><b><br>
Date: </b>Saturday, March 28, 2020 at 11:25 AM<b><br>
To: </b>"Margherita.di.Giulio@esa.int" <Margherita.di.Giulio@esa.int><b><br>
Cc: </b>"Massimo.Bertinelli@esa.int" <Massimo.Bertinelli@esa.int>,
CCSDS Engineering Steering Group - CESG Exec <cesg@mailman.ccsds.org><b><br>
Subject: </b>[EXTERNAL] [CESG] 131.3 unresolved Poll: SLS position paper</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Dear
Margherita,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">I
hope you and your family are able to stay safe & healthy.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">As
a response to action item taken during March 10 CESG telecon, please find
attached SLS position paper regarding 131.3 unresolved poll.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Best
regards,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Gilles</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<br>
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<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> [attachment
"NASA refined ALACAMAD approach 3Apr20.pptx" deleted by Margherita
di Giulio/esoc/ESA] </span></p>
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