<span style=" font-size:10pt;font-family:sans-serif">thanks Greg for the
feedback.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Based on my discussion
with the colleagues, indeed the ESA input is meant just to cover ESA EO/SCI
mission scenarios, for which there is classical TC/TM. See also some clarifications
to concerns 1--4, below in red.</span>
<br><span style=" font-size:10pt;font-family:sans-serif">The input is not
a general ruling out of VLFs, but rather we look forward to receiving further
inputs from the WGs for identifying useful scenarios (either from our colleagues
or other agencies).</span>
<br>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">But let's discuss
the topic after the vacation period</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Andrea</span>
<br>
<br>
<br><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b>ESA
- European Space Agency</b></span>
<br><span style=" font-size:8pt;color:#00a1e0;font-family:Verdana"><b>Ph.D.
Andrea Modenini</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
TT&C Communications Systems Engineer</b></span><span style=" font-size:12pt;font-family:Tms Rmn"><b>
</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
TT&C and PDT Systems & Techniques Section (TEC-EST)<br>
RF Systems Division<b><br>
ESTEC</b><br>
Keplerlaan 1, PO Box 299<br>
NL-2200 AG Noordwijk, The Netherlands</span><span style=" font-size:8pt;color:blue;font-family:Verdana"><u><br>
</u></span><span style=" font-size:8pt;color:#808080;font-family:Verdana">andrea.modenini@esa.int
| </span><a href=http://www.esa.int/><span style=" font-size:8pt;color:#8f8f8f;font-family:Verdana"><u>www.esa.int</u></span></a><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
T +31 71 56 53439, M +31 6 484 56 527</span>
<br>
<br><img src=cid:_1_102A20B4102A1E48002B21E4C1258892 style="border:0px solid;">
<br><a href="https://atpi.eventsair.com/ttc-2022/"><span style=" font-size:8pt;color:blue;font-family:Verdana">https://atpi.eventsair.com/ttc-2022/</span></a><span style=" font-size:8pt;color:#808080;font-family:Verdana">
</span>
<br>
<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">"Kazz,
Greg (US 312B)" <greg.j.kazz@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">"Andrea.Modenini@esa.int"
<Andrea.Modenini@esa.int>, "C&S WG" <sls-cc@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">"Edwards,
Bernard L. (GSFC-5600)" <bernard.l.edwards@nasa.gov>, "Andrews,
Kenneth S (US 332B)" <kenneth.s.andrews@jpl.nasa.gov>, "Shames,
Peter M (US 312B)" <peter.m.shames@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">02-08-22
03:49</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] [SLS-CC] reminder AI VLFs</span>
<br>
<hr noshade>
<br>
<br>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Hi
Andrea,</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">Both
Peter Shames and I share the following concerns with regard to the ESA
VLF mission analysis attached. We do not find that presentation to have
made the case to dismiss the possibility of creating a CCSDS VLF Project.
</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Below
are our concerns:</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:10pt;font-family:sans-serif">1.
</span><span style=" font-size:11pt;font-family:Calibri">The
ESA study only addressed downlink only.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif">2.
</span><span style=" font-size:11pt;font-family:Calibri">The
ESA study built into their assumptions a very small set of fixed packet
sizes would be used with a “cookie cutter” sort of data => packet
=> frame approach</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;color:red;font-family:Calibri">The
CHIME case is indeed fixed length packet. GAIA is instead variable length
packets, and we provided average results, based on the packet length distribution
transmitted into fixed-length frames. Both satellites have different instruments
and kind of data streams, encapsulated into CCSDS packet. We have several
scenarios with variable length CCSDS packets (like EO Sentinel missions)
but were providing the same conclusions. So, they were not included for
making the presentation lighter.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif">3.
</span><span style=" font-size:11pt;font-family:Calibri">The
ESA study didn’t look at any sort of mixture of data sizes, data directions,
etc. </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;color:red;font-family:Calibri">In
terms of mixture of data size, for ESA EO/SCI missions, I believe we covered.
Mixture of data directions, I agree with you: our EO/SCI missions do not
perform that. Probably different story is for future Lunar/Mars missions
(not part of this presentation)</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif">4.
</span><span style=" font-size:11pt;font-family:Calibri">Many
missions use more than one instrument, data packet size, and link direction,
so none of these use cases were factored into the ESA analysis.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;color:red;font-family:Calibri"> See
previous points.</span><span style=" font-size:11pt;font-family:Calibri">
</span></p>
<p style="margin-top:0px;margin-Bottom:0px"></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Given
the above, our conclusion, is that this ESA study was too constrained and
quite frankly unrepresentative of other mission space links in general.
Certainly not representative of the emerging Moon and Mars in-situ 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">On
the “use Ethernet instead of Space Packet” topic, we also have many concerns,
for the following reasons:</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:10pt;font-family:sans-serif">1.
</span><span style=" font-size:11pt;font-family:Calibri">Ethernet
is a well implemented link layer protocol (that his study claims that it
could be bundled inside another link layer protocol)</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif">2.
</span><span style=" font-size:11pt;font-family:Calibri">Ethernet
has its own globally unique link layer end-point addresses (MAC address),
this is actually an advantage over APIDs, but different than what Space
Packet currently provides.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif">3.
</span><span style=" font-size:11pt;font-family:Calibri">In
order to take advantage of the MAC address unique features we ought to
be adopting some sort of path/routing that uses that, but this is then
a sort of “layer violation”, that requires further analysis, and probably
also needs much more careful thought and new MAC layer addressing / path
machinery</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif">4.
</span><span style=" font-size:11pt;font-family:Calibri">Note
that MAC addresses in Ethernet links support switching, and not routing.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:sans-serif">5.
</span><span style=" font-size:11pt;font-family:Calibri">Ethernet
frames introduce length constraints that our missions do not get involved
with when they use space packets.</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
know Europe is starting it’s month out of the office very soon. Let’s
discuss this topic further when everyone is available again.</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">Thanks,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Greg</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri"><b>From:
</b>"Andrea.Modenini@esa.int" <Andrea.Modenini@esa.int><b><br>
Date: </b>Monday, August 1, 2022 at 8:17 AM<b><br>
To: </b>C&S WG <sls-cc@mailman.ccsds.org><b><br>
Cc: </b>"Edwards, Bernard L. (GSFC-5600)" <bernard.l.edwards@nasa.gov>,
"Kazz, Greg (US 312B)" <greg.j.kazz@jpl.nasa.gov>, "Andrews,
Kenneth S (US 332B)" <kenneth.s.andrews@jpl.nasa.gov><b><br>
Subject: </b>[EXTERNAL] [SLS-CC] reminder AI VLFs</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:10pt;font-family:Courier New">Dear
C&S WG,</span><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Courier New"> concerning
the AI on VLFs, I received just a single input from ESA as in attachment.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Courier New">It
refers to Earth Observation and SCI missions using RF links only: it is
shown that VLFs advantages are quite low.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Courier New">Before
closing the AI, given the vacation period, could you let me know by <b>9th
September</b> if your agency plans to submit any input for the action item
in subject, and when?</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Courier New">As
discussed during Spring 2022, it would be useful to have such inputs well
before Fall meeting 2022, for finalising the concept paper.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Courier New">Otherwise,
in absence of use cases, I see difficult to proceed in having a project
for VLFs.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Courier New"><b>@Bern,
Greg</b>: if you could pool your WGs as well.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Courier New">Andrea</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
ESA - European Space Agency</b></span><span style=" font-size:11pt;font-family:Calibri">
</span><span style=" font-size:8pt;color:#00a1e0;font-family:Verdana"><b><br>
Ph.D. Andrea Modenini</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
TT&C Communications Systems Engineer</b></span><span style=" font-size:12pt"><b>
</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
TT&C and PDT Systems & Techniques Section (TEC-EST)<br>
RF Systems Division<b><br>
ESTEC</b><br>
Keplerlaan 1, PO Box 299<br>
NL-2200 AG Noordwijk, The Netherlands<br>
andrea.modenini@esa.int | </span><a href="https://urldefense.us/v3/__http:/www.esa.int/__;!!PvBDto6Hs4WbVuu7!YeQnERr84fszTAxn5ZId4J9DLI0zd6tBP6EutY0os4XiXPhNwbcZs_TZPhBLa7c_Mx-Dre3s$"><span style=" font-size:8pt;color:#8f8f8f;font-family:Verdana"><u>www.esa.int</u></span></a><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
T +31 71 56 53439, M +31 6 484 56 527</span><span style=" font-size:11pt;font-family:Calibri">
<br>
<br>
</span><img src=cid:_1_0FED879C0FED7E80002B21E4C1258892 style="border:0px solid;"><span style=" font-size:11pt;color:blue;font-family:Calibri"><u><br>
</u></span><a href="https://urldefense.us/v3/__https:/atpi.eventsair.com/ttc-2022/__;!!PvBDto6Hs4WbVuu7!YeQnERr84fszTAxn5ZId4J9DLI0zd6tBP6EutY0os4XiXPhNwbcZs_TZPhBLa7c_MwSP2qTQ$"><span style=" font-size:8pt;color:blue;font-family:Verdana"><u>https://atpi.eventsair.com/ttc-2022/</u></span></a><span style=" font-size:8pt;color:#808080;font-family:Verdana">
</span><span style=" font-size:11pt;font-family:Calibri"><br>
<br>
<br>
<br>
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
From: </span><span style=" font-size:9pt;font-family:Arial">Nicola
Maturo/estec/ESA</span><span style=" font-size:11pt;font-family:Calibri">
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
To: </span><span style=" font-size:9pt;font-family:Arial">"Andrea
Modenini" <Andrea.Modenini@esa.int>, "Kazz, Greg J (312B)"
<Greg.J.Kazz@jpl.nasa.gov>, "Edwards, Bernard L. (GSFC-5600)"
<bernard.l.edwards@nasa.gov>, "kenneth.s.andrews@jpl.nasa.gov"
<kenneth.s.andrews@jpl.nasa.gov></span><span style=" font-size:11pt;font-family:Calibri">
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
Date: </span><span style=" font-size:9pt;font-family:Arial">27-07-22
17:05</span><span style=" font-size:11pt;font-family:Calibri"> </span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
Subject: </span><span style=" font-size:9pt;font-family:Arial">RE:
[SLS-CC] reminder AI VLFs</span><span style=" font-size:11pt;font-family:Calibri">
</span></p>
<div align=center>
<hr noshade></div>
<p style="margin-top:0px;margin-Bottom:240px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt">Dear
Andrea, Greg, Edwards and Ken;</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt">Please
find attached ESA input on the VLF topic.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt">Regards,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt">Nicola</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b>HE
Space for ESA - European Space Agency </b></span><span style=" font-size:8pt;color:#00a1e0;font-family:Verdana"><b><br>
<br>
Nicola Maturo,</b> <b>Ph.D.</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
TT&C Communications Systems Engineer <br>
<br>
TT&C and PDT Systems and Techniques Section (TEC-EST)<br>
Radio Frequency Systems Division (TEC-ES)<br>
Directorate of Technology, Engineering and Quality (TEC)</span><span style=" font-size:12pt">
</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b>European
Space Research and Technology Centre (ESTEC)</b><br>
Keplerlaan 1, PO Box 299<br>
NL-2200 AG Noordwijk, The Netherlands</span><span style=" font-size:12pt;color:blue"><u><br>
</u></span><a href=mailto:gilles.nzokira@esa.int><span style=" font-size:8pt;color:#0082bf;font-family:Verdana"><u>nicola.maturo@esa.int</u></span></a><span style=" font-size:8pt;color:#808080;font-family:Verdana">
| </span><a href="https://urldefense.us/v3/__http:/www.esa.int/__;!!PvBDto6Hs4WbVuu7!YeQnERr84fszTAxn5ZId4J9DLI0zd6tBP6EutY0os4XiXPhNwbcZs_TZPhBLa7c_Mx-Dre3s$"><span style=" font-size:8pt;color:#8f8f8f;font-family:Verdana"><u>www.esa.int</u></span></a><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
T +31 71 565 3885</span><span style=" font-size:12pt"> </span></p>
<p style="£■ö■î+ß;margin-Bottom:3600px"><span style=" font-size:12pt"><br>
</span><img src=cid:_1_0FEDC3E00FEDBFD0002B21E4C1258892 style="border:0px solid;"><span style=" font-size:12pt;color:blue"><u><br>
<br>
</u></span><a href="https://urldefense.us/v3/__https:/eur05.safelinks.protection.outlook.com/?url=https*3A*2F*2Fatpi.eventsair.com*2Fttc-2022*2F&data=05*7C01*7CAndrea.Modenini*40domino.esa.int*7Ce9cdb99504e04164209408da6fe1644e*7C9a5cacd02bef4dd7ac5c7ebe1f54f495*7C0*7C0*7C637945311218899072*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=C2Ryos4XzCQnE4YqvTTk0OTV9*2BQBcqfEpPktzNzYDms*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSUlJQ!!PvBDto6Hs4WbVuu7!YeQnERr84fszTAxn5ZId4J9DLI0zd6tBP6EutY0os4XiXPhNwbcZs_TZPhBLa7c_MwGNqUa7$"><span style=" font-size:8pt;color:blue;font-family:Verdana"><u>https://atpi.eventsair.com/ttc-2022/</u></span></a></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt"><b>From:</b>
SLS-CC <sls-cc-bounces@mailman.ccsds.org> <b>On Behalf Of </b>Andrea.Modenini---
via SLS-CC<b><br>
Sent:</b> 12 July 2022 14:14<b><br>
To:</b> Space Link Coding & Synchronization Working Group <sls-cc@mailman.ccsds.org><b><br>
Cc:</b> Kazz, Greg J (312B) <Greg.J.Kazz@jpl.nasa.gov>; Edwards,
Bernard L. (GSFC-5600) <bernard.l.edwards@nasa.gov><b><br>
Subject:</b> [SLS-CC] reminder AI VLFs</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Arial">Dear
C&S WG,</span><span style=" font-size:12pt"> </span><span style=" font-size:10pt;font-family:Arial"><br>
a kind reminder for the deadline of the AI about providing use cases for
VLFs.</span><span style=" font-size:12pt"> </span><span style=" font-size:10pt;font-family:Arial"><br>
Please send your input by 27th July (with CC Bern, Greg, and Ken).</span><span style=" font-size:12pt">
</span><span style=" font-size:10pt;font-family:Arial"><br>
<br>
Regards</span><span style=" font-size:12pt"> <br>
</span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
<br>
ESA - European Space Agency</b></span><span style=" font-size:12pt"> </span><span style=" font-size:8pt;color:#00a1e0;font-family:Verdana"><b><br>
Ph.D. Andrea Modenini</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
TT&C Communications Systems Engineer</b></span><span style=" font-size:12pt"><b>
</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
TT&C and PDT Systems & Techniques Section (TEC-EST)<br>
RF Systems Division<b><br>
ESTEC</b><br>
Keplerlaan 1, PO Box 299<br>
NL-2200 AG Noordwijk, The Netherlands</span><span style=" font-size:12pt;color:blue"><u><br>
</u></span><a href=mailto:andrea.modenini@esa.int><span style=" font-size:8pt;color:blue;font-family:Verdana"><u>andrea.modenini@esa.int</u></span></a><span style=" font-size:8pt;color:#808080;font-family:Verdana">
| </span><a href="https://urldefense.us/v3/__http:/www.esa.int/__;!!PvBDto6Hs4WbVuu7!YeQnERr84fszTAxn5ZId4J9DLI0zd6tBP6EutY0os4XiXPhNwbcZs_TZPhBLa7c_Mx-Dre3s$"><span style=" font-size:8pt;color:#8f8f8f;font-family:Verdana"><u>www.esa.int</u></span></a><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
T +31 71 56 53439, M +31 6 484 56 527</span><span style=" font-size:12pt">
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<br>
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</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
<br>
From: </span><span style=" font-size:9pt;font-family:Arial">Andrea
Modenini/estec/ESA</span><span style=" font-size:12pt"> </span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
To: </span><span style=" font-size:9pt;font-family:Arial">"Space
Link Coding & Synchronization Working Group" <</span><a href="mailto:sls-cc@mailman.ccsds.org"><span style=" font-size:9pt;color:blue;font-family:Arial"><u>sls-cc@mailman.ccsds.org</u></span></a><span style=" font-size:9pt;font-family:Arial">></span><span style=" font-size:12pt">
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
Cc: </span><span style=" font-size:9pt;font-family:Arial">"Edwards,
Bernard L. (GSFC-5600)" <</span><a href=mailto:bernard.l.edwards@nasa.gov><span style=" font-size:9pt;color:blue;font-family:Arial"><u>bernard.l.edwards@nasa.gov</u></span></a><span style=" font-size:9pt;font-family:Arial">>,
"Lee, Dennis K (332G)" <</span><a href=mailto:Dennis.K.Lee@jpl.nasa.gov><span style=" font-size:9pt;color:blue;font-family:Arial"><u>Dennis.K.Lee@jpl.nasa.gov</u></span></a><span style=" font-size:9pt;font-family:Arial">>,
"Kazz, Greg J (312B)" <</span><a href=mailto:Greg.J.Kazz@jpl.nasa.gov><span style=" font-size:9pt;color:blue;font-family:Arial"><u>Greg.J.Kazz@jpl.nasa.gov</u></span></a><span style=" font-size:9pt;font-family:Arial">></span><span style=" font-size:12pt">
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
Date: </span><span style=" font-size:9pt;font-family:Arial">30-05-22
12:19</span><span style=" font-size:12pt"> </span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
Subject: </span><span style=" font-size:9pt;font-family:Arial">Re:
[SLS-CC] Spring 2022 - MoM and input for SLS to CESG</span><span style=" font-size:12pt">
</span></p>
<div align=center>
<hr noshade></div>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:10pt;font-family:Arial"><br>
<br>
Dear all,</span><span style=" font-size:12pt"> </span><span style=" font-size:10pt;font-family:Arial"><br>
for the C&S Spring MoM 2022, I have just received a few comments that
I have implemented.</span><span style=" font-size:12pt"> </span><span style=" font-size:10pt;font-family:Arial"><br>
<br>
You can find in attachment the final PDF file, that I will upload on CWE,
and, for your convenience, the .doc file with the track changes.</span><span style=" font-size:12pt">
</span><span style=" font-size:10pt;font-family:Arial"><br>
<br>
Finally, I reminder that the first AIs (use cases for VLFs) is due by July
2022, so please send your inputs (with CC Bern, Greg, and Ken) no later
than 27th July 2022.</span><span style=" font-size:12pt"> <br>
<br>
</span><span style=" font-size:10pt;font-family:Arial"><br>
<br>
Kind Regards</span><span style=" font-size:12pt"> <br>
</span><span style=" font-size:10pt;font-family:Arial"><br>
<br>
[attachment "SLS-CS Spring 2022 MoM_final.pdf" deleted by Andrea
Modenini/estec/ESA] [attachment "SLS-CS Spring 2022 MoM_track_changes.docx"
deleted by Andrea Modenini/estec/ESA] </span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
<br>
ESA - European Space Agency</b></span><span style=" font-size:12pt"> </span><span style=" font-size:8pt;color:#00a1e0;font-family:Verdana"><b><br>
Ph.D. Andrea Modenini</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
TT&C Communications Systems Engineer</b></span><span style=" font-size:12pt"><b>
</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
TT&C and PDT Systems & Techniques Section (TEC-EST)<br>
RF Systems Division<b><br>
ESTEC</b><br>
Keplerlaan 1, PO Box 299<br>
NL-2200 AG Noordwijk, The Netherlands</span><span style=" font-size:12pt;color:blue"><u><br>
</u></span><a href=mailto:andrea.modenini@esa.int><span style=" font-size:8pt;color:blue;font-family:Verdana"><u>andrea.modenini@esa.int</u></span></a><span style=" font-size:8pt;color:#808080;font-family:Verdana">
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T +31 71 56 53439, M +31 6 484 56 527</span><span style=" font-size:12pt">
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</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
<br>
From: </span><span style=" font-size:9pt;font-family:Arial">Andrea
Modenini/estec/ESA</span><span style=" font-size:12pt"> </span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
To: </span><span style=" font-size:9pt;font-family:Arial">"Space
Link Coding & Synchronization Working Group" <</span><a href="mailto:sls-cc@mailman.ccsds.org"><span style=" font-size:9pt;color:blue;font-family:Arial"><u>sls-cc@mailman.ccsds.org</u></span></a><span style=" font-size:9pt;font-family:Arial">></span><span style=" font-size:12pt">
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
Cc: </span><span style=" font-size:9pt;font-family:Arial">"Edwards,
Bernard L. (GSFC-5600)" <</span><a href=mailto:bernard.l.edwards@nasa.gov><span style=" font-size:9pt;color:blue;font-family:Arial"><u>bernard.l.edwards@nasa.gov</u></span></a><span style=" font-size:9pt;font-family:Arial">>,
"Lee, Dennis K (332G)" <</span><a href=mailto:Dennis.K.Lee@jpl.nasa.gov><span style=" font-size:9pt;color:blue;font-family:Arial"><u>Dennis.K.Lee@jpl.nasa.gov</u></span></a><span style=" font-size:9pt;font-family:Arial">>,
"Kazz, Greg J (312B)" <</span><a href=mailto:Greg.J.Kazz@jpl.nasa.gov><span style=" font-size:9pt;color:blue;font-family:Arial"><u>Greg.J.Kazz@jpl.nasa.gov</u></span></a><span style=" font-size:9pt;font-family:Arial">></span><span style=" font-size:12pt">
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
Date: </span><span style=" font-size:9pt;font-family:Arial">18-05-22
09:12</span><span style=" font-size:12pt"> </span><span style=" font-size:9pt;color:#5f5f5f;font-family:Arial"><br>
Subject: </span><span style=" font-size:9pt;font-family:Arial">[SLS-CC]
Spring 2022 - MoM and input for SLS to CESG</span><span style=" font-size:12pt">
</span></p>
<div align=center>
<hr noshade></div>
<p style="£■ö■î+ß;margin-Bottom:240px"><span style=" font-size:10pt;font-family:Arial"><br>
<br>
Dear colleagues,</span><span style=" font-size:12pt"> </span><span style=" font-size:10pt;font-family:Arial"><br>
you can find in attachment the draft MoM of the C&S WG meetings, including
the joint meetings with SLP, RFM, and OPT.</span><span style=" font-size:12pt">
</span><span style=" font-size:10pt;font-family:Arial"><br>
In attachment there is also a powerpoint of the input that I would like
to send to SLS AD for the CESG meeting about having an OpenISL project.</span><span style=" font-size:12pt">
</span><span style=" font-size:10pt;font-family:Arial"><br>
<br>
Could you send me your comments <b>no later than 24th EOB</b>? </span><span style=" font-size:12pt"><br>
</span><span style=" font-size:10pt;font-family:Arial"><br>
<br>
For Bern, Dennis, and Greg, can you pool your WG as well for comments?
The relevant content for your WGs is as follows:</span><span style=" font-size:12pt">
</span><span style=" font-size:10pt;font-family:Arial"><b><br>
RFM: </b>Section 3 of MoM + AI list + Powerpoint</span><span style=" font-size:12pt">
</span><span style=" font-size:10pt;font-family:Arial"><b><br>
OPT: </b>Section 1 of MoM + AI list</span><span style=" font-size:12pt">
</span><span style=" font-size:10pt;font-family:Arial"><b><br>
SLP: </b>Section 1, 2 and 3 of MoM + AI list + Powerpoint</span><span style=" font-size:12pt">
<br>
</span><span style=" font-size:10pt;font-family:Arial"><br>
<br>
Regards</span><span style=" font-size:12pt"> <br>
<br>
</span><span style=" font-size:10pt;font-family:Arial"><br>
</span><span style=" font-size:12pt"><br>
</span><span style=" font-size:10pt;font-family:Arial"><br>
[attachment "SLS-CS Spring 2022 MoM.docx" deleted by Andrea Modenini/estec/ESA]
[attachment "Annex - SLS - activity for the implementation of an OpenISL.pptx"
deleted by Andrea Modenini/estec/ESA] </span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
<br>
ESA - European Space Agency</b></span><span style=" font-size:12pt"> </span><span style=" font-size:8pt;color:#00a1e0;font-family:Verdana"><b><br>
Ph.D. Andrea Modenini</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
TT&C Communications Systems Engineer</b></span><span style=" font-size:12pt"><b>
</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
TT&C and PDT Systems & Techniques Section (TEC-EST)<br>
RF Systems Division<b><br>
ESTEC</b><br>
Keplerlaan 1, PO Box 299<br>
NL-2200 AG Noordwijk, The Netherlands</span><span style=" font-size:12pt;color:blue"><u><br>
</u></span><a href=mailto:andrea.modenini@esa.int><span style=" font-size:8pt;color:blue;font-family:Verdana"><u>andrea.modenini@esa.int</u></span></a><span style=" font-size:8pt;color:#808080;font-family:Verdana">
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