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<p class="MsoNormal">Hi Jorge,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">What you propose makes perfect sense to me allowing for future coding entries based upon rate and length.<o:p></o:p></p>
<p class="MsoNormal">If I don’t hear any concerns with this approach, I will update the Coding parameter for the S-band directives accordingly.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Many thanks,<o:p></o:p></p>
<p class="MsoNormal">Greg<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span lang="EN-GB" style="font-size:12.0pt;color:black;mso-ligatures:none">From:
</span></b><span lang="EN-GB" style="font-size:12.0pt;color:black;mso-ligatures:none">Jorge Quintanilla <Jorge.Quintanilla@ext.esa.int><br>
<b>Date: </b>Wednesday, November 22, 2023 at 3:21 AM<br>
<b>To: </b>"Kazz, Greg (US 312B)" <greg.j.kazz@jpl.nasa.gov>, "Rodriguez, Shannon (GSFC-5670)" <shannon.rodriguez-1@nasa.gov><br>
<b>Cc: </b>Nicola Maturo <Nicola.Maturo@ext.esa.int>, "Lee, Wing-tsz (GSFC-5670)" <wing-tsz.lee-1@nasa.gov>, "Kazz, Greg (US 312B) via SLS-SLP" <sls-slp@mailman.ccsds.org>, "sls-rfm@mailman.ccsds.org" <sls-rfm@mailman.ccsds.org>, Space Link Coding & Synchronization
Working Group <sls-cc@mailman.ccsds.org><br>
<b>Subject: </b>RE: [SLS-CC] [BULK] Re: [EXTERNAL] RE: Updated Proximity-1 Directives and Default Session Control Parameters for Lunar Operations<o:p></o:p></span></p>
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<div>
<p class="MsoNormal"><span lang="EN-GB" style="mso-ligatures:none"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span lang="EN-GB">Hi Greg, all,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Yes, we (ESA part of the C&S WG) agree with Shannon. In the planned update of 211.2-B for S-band Proximity-1, we only permit those 3 LDPC codes, plus uncoded.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">In the general C&S blue book (131.0-B), there are 10 possible LDPC codes, corresponding to the 9 combinations of rates [1/2, 2/3, 4/5] with the block lengths [1024, 4096, 16384] bits, plus the code with rate ~7/8 and
block length 7136 bits. For Prox1 we selected 3 among those 10. Other non-Prox1 proximity links (for instance, those defined in LNISv5) might have a wider selection (LNISv5 selects 7 among the 10), but my understanding of the joint meeting in The Hague is
that in your Annex we would only list (at least for now) the Prox1 allowed codes.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal">My proposal is that we list only those 3 LDPC codes (+uncoded) but leaving gaps for the rest of LDPC codes, for instance:<o:p></o:p></p>
<ol style="margin-top:0in" start="1" type="a">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo3"><i>‘000000’ = Uncoded;<o:p></o:p></i></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo3"><i>‘000001’ = LDPC(2048,1024);<o:p></o:p></i></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo3"><i>‘000101’= LDPC(6144,4096);<o:p></o:p></i></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo3"><i>‘001010’ = LDPC(<span class="markedcontent">8160,7136);</span></i><span class="markedcontent"><span lang="EN-GB"><o:p></o:p></span></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo3"><span class="markedcontent"><i>other = RESERVED BY CCSDS<o:p></o:p></i></span></li></ol>
<p class="MsoNormal"><span lang="EN-GB">(i.e, we leave gaps like 000010, 000011, 000100… for the other combinations of code rates / block lengths, following a sensible order of increasing code rate and increasing length)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><b><span lang="EN-GB" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-ligatures:none">Jorge Quintanilla
</span></b><span lang="EN-GB" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-ligatures:none">| Senior Consultant<br>
CGI Deutschland B.V. & Co. KG</span><span lang="EN-GB" style="mso-ligatures:none"><br>
</span><span lang="EN-GB" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-ligatures:none">GOF 9 Frame Contract at ESOC<br>
ESA/ESOC OPS-GSS</span><span lang="EN-GB" style="mso-ligatures:none"><br>
</span><span lang="EN-GB" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-ligatures:none">Robert-Bosch-Str 5 | 64293 Darmstadt | Germany<br>
+49 6151 902886</span><span lang="EN-GB" style="mso-ligatures:none"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="mso-ligatures:none">From:</span></b><span style="mso-ligatures:none"> SLS-CC <sls-cc-bounces@mailman.ccsds.org>
<b>On Behalf Of </b>Kazz, Greg (US 312B) via SLS-CC<br>
<b>Sent:</b> Tuesday, November 21, 2023 11:52 PM<br>
<b>To:</b> Rodriguez, Shannon (GSFC-5670) <shannon.rodriguez-1@nasa.gov><br>
<b>Cc:</b> Nicola Maturo <Nicola.Maturo@ext.esa.int>; Lee, Wing-tsz (GSFC-5670) <wing-tsz.lee-1@nasa.gov>; Kazz, Greg (US 312B) via SLS-SLP <sls-slp@mailman.ccsds.org>; sls-rfm@mailman.ccsds.org; Space Link Coding & Synchronization Working Group <sls-cc@mailman.ccsds.org><br>
<b>Subject:</b> Re: [SLS-CC] [BULK] Re: [EXTERNAL] RE: Updated Proximity-1 Directives and Default Session Control Parameters for Lunar Operations<o:p></o:p></span></p>
</div>
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<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
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<b><span style="color:#222222;mso-ligatures:none">Caution:</span></b><span style="color:#222222;mso-ligatures:none"> This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="mso-ligatures:none"><o:p> </o:p></span></p>
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<p class="MsoNormal">Hi Shannon, et all<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I wasn’t aware that the list of potential Proximity-1 channel codes for S-band was already reduced based upon a previous agreement.<o:p></o:p></p>
<p class="MsoNormal">I included all the potential code lengths based upon what is currently available for LDPC into my table.<o:p></o:p></p>
<p class="MsoNormal">If the consensus of the SLP, C&S, and RF&MOD WGs is to just go with the following codes, then I can certainly document that in the S-band directive set.<o:p></o:p></p>
<p class="MsoNormal">So if that is the case, we would only permit:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l2 level1 lfo6">LDPC(2048,1024) rate ½<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l2 level1 lfo6">LDPC(6144,4096) rate 2/3<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l2 level1 lfo6">LDPC(8160,7136) rate 7/8<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">However, what about uncoded ? (which was a legal option at UHF)
<o:p></o:p></p>
<p class="MsoNormal">Is uncoded still a reasonable option at S-band ?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">If anyone has an issue with those three codes being the exclusive set for Prox-1 S-band, please let us know.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks much,<o:p></o:p></p>
<p class="MsoNormal">Greg<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black;mso-ligatures:none">From:
</span></b><span style="font-size:12.0pt;color:black;mso-ligatures:none">"Rodriguez, Shannon (GSFC-5670)" <</span><span lang="EN-GB"><a href="mailto:shannon.rodriguez-1@nasa.gov"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">shannon.rodriguez-1@nasa.gov</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">><br>
<b>Date: </b>Tuesday, November 21, 2023 at 1:01 PM<br>
<b>To: </b>"Kazz, Greg (US 312B)" <</span><span lang="EN-GB"><a href="mailto:greg.j.kazz@jpl.nasa.gov"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">greg.j.kazz@jpl.nasa.gov</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">><br>
<b>Cc: </b>"Fong, Wai H. (GSFC-5670)" <</span><span lang="EN-GB"><a href="mailto:wai.h.fong@nasa.gov"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">wai.h.fong@nasa.gov</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>,
Andrea Modenini <</span><span lang="EN-GB"><a href="mailto:Andrea.Modenini@esa.int"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">Andrea.Modenini@esa.int</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>, "Lee,
Dennis K (US 332G)" <</span><span lang="EN-GB"><a href="mailto:dennis.k.lee@jpl.nasa.gov"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">dennis.k.lee@jpl.nasa.gov</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>,
Nicola Maturo <</span><span lang="EN-GB"><a href="mailto:Nicola.Maturo@ext.esa.int"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">Nicola.Maturo@ext.esa.int</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>, "Lee,
Wing-tsz (GSFC-5670)" <</span><span lang="EN-GB"><a href="mailto:wing-tsz.lee-1@nasa.gov"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">wing-tsz.lee-1@nasa.gov</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">><br>
<b>Subject: </b>Re: [BULK] Re: [SLS-CC] [EXTERNAL] RE: Updated Proximity-1 Directives and Default Session Control Parameters for Lunar Operations<o:p></o:p></span></p>
</div>
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<p class="MsoNormal"><span style="mso-ligatures:none"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:16.0pt">Hi Greg and others,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt">I see more than 1 coding block size for each coding option, which differs from the notes I had from Spring 2023 meeting and I cant track in the WG feedback (written) that we requested this. Maybe I am drawing
a blank from our Fall meeting. <b>Did we want those other options?<o:p></o:p></b></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt">Here what I see in the online version you have:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt;mso-ligatures:none"><img border="0" width="654" height="570" style="width:6.8125in;height:5.9375in" id="Picture_x0020_1" src="cid:image001.png@01DA1D24.839020E0" alt="image"></span><span style="font-size:16.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt">Here what we had in Spring MOM:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt;mso-ligatures:none"><img border="0" width="1113" height="344" style="width:11.5937in;height:3.5833in" id="Picture_x0020_4" src="cid:image002.png@01DA1D24.839020E0" alt="Graphical user interface, text, application
Description automatically generated"><img border="0" width="1309" height="163" style="width:13.6354in;height:1.6979in" id="Picture_x0020_3" src="cid:image003.png@01DA1D24.839020E0" alt="image"></span><span style="font-size:16.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black;mso-ligatures:none">From:
</span></b><span style="font-size:12.0pt;color:black;mso-ligatures:none">SLS-CC <</span><span lang="EN-GB"><a href="mailto:sls-cc-bounces@mailman.ccsds.org"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">sls-cc-bounces@mailman.ccsds.org</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>
on behalf of "Kazz, Greg (US 312B) via SLS-CC" <</span><span lang="EN-GB"><a href="mailto:sls-cc@mailman.ccsds.org"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">sls-cc@mailman.ccsds.org</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">><br>
<b>Reply-To: </b>"Kazz, Greg J (JPL-312B)[JPL Employee]" <</span><span lang="EN-GB"><a href="mailto:greg.j.kazz@jpl.nasa.gov"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">greg.j.kazz@jpl.nasa.gov</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">><br>
<b>Date: </b>Thursday, November 16, 2023 at 3:58 PM<br>
<b>To: </b>DONA' Gabriele <</span><span lang="EN-GB"><a href="mailto:gabriele.dona@thalesaleniaspace.com"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">gabriele.dona@thalesaleniaspace.com</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>,
"Kazz, Greg via SLS-SLP (US 312B)" <</span><span lang="EN-GB"><a href="mailto:sls-slp@mailman.ccsds.org"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">sls-slp@mailman.ccsds.org</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>,
"Shames, Peter M (JPL-312B)[JPL Employee]" <</span><span lang="EN-GB"><a href="mailto:peter.m.shames@jpl.nasa.gov"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">peter.m.shames@jpl.nasa.gov</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>,
Moury Gilles <</span><span lang="EN-GB"><a href="mailto:Gilles.Moury@cnes.fr"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">Gilles.Moury@cnes.fr</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>, Ignacio Aguilar
Sanchez <</span><span lang="EN-GB"><a href="mailto:Ignacio.Aguilar.Sanchez@esa.int"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">Ignacio.Aguilar.Sanchez@esa.int</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>,
"Lee, Dennis K (JPL-332G)[JPL Employee]" <</span><span lang="EN-GB"><a href="mailto:dennis.k.lee@jpl.nasa.gov"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">dennis.k.lee@jpl.nasa.gov</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>,
"Andrews, Kenneth S (JPL-332B)[JPL Employee]" <</span><span lang="EN-GB"><a href="mailto:kenneth.s.andrews@jpl.nasa.gov"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">kenneth.s.andrews@jpl.nasa.gov</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>,
Andrea Modenini <</span><span lang="EN-GB"><a href="mailto:Andrea.Modenini@esa.int"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">Andrea.Modenini@esa.int</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>, "</span><span lang="EN-GB"><a href="mailto:sls-rfm@mailman.ccsds.org"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">sls-rfm@mailman.ccsds.org</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">"
<</span><span lang="EN-GB"><a href="mailto:sls-rfm@mailman.ccsds.org"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">sls-rfm@mailman.ccsds.org</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">>, Space Link Coding
& Synchronization Working Group <</span><span lang="EN-GB"><a href="mailto:sls-cc@mailman.ccsds.org"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">sls-cc@mailman.ccsds.org</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">><br>
<b>Cc: </b>"</span><span lang="EN-GB"><a href="mailto:Brice.Dellandrea@esa.int"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">Brice.Dellandrea@esa.int</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">" <</span><span lang="EN-GB"><a href="mailto:Brice.Dellandrea@esa.int"><span lang="EN-US" style="font-size:12.0pt;mso-ligatures:none">Brice.Dellandrea@esa.int</span></a></span><span style="font-size:12.0pt;color:black;mso-ligatures:none">><br>
<b>Subject: </b>[BULK] Re: [SLS-CC] [EXTERNAL] RE: Updated Proximity-1 Directives and Default Session Control Parameters for Lunar Operations<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="mso-ligatures:none"><o:p> </o:p></span></p>
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<p class="MsoNormal">Hi Gabriele,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Nice to meet you, even if it is only via email.<o:p></o:p></p>
<p class="MsoNormal">I included the entire SLP WG on this distribution, since the topic is an important one.<o:p></o:p></p>
<p class="MsoNormal">The Prox-1 physical layer standard (CCSDS 211.1-B-4) specifies Channel 1 as the hailing channel for UHF at Mars
<span style="font-family:"Times New Roman",serif">in which Ch 1 is defined as </span>
435.6 MHz forward and 404.4 MHz return.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I realize that the Mars Program deviated from this standard and utilized Channel 0 as their Hailing Channel and their working channel.
<o:p></o:p></p>
<p class="MsoNormal">So this difference is a de-facto vs de-jure issue.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">CCSDS 211.1-B-4 also says in a NOTE (which is non-normative) that “Enterprise-specific hailing channel frequencies can be defined in the default configuration of the Physical Layer parameters”. Furthermore, in another follow on NOTE (non-normative)
in the same section, it says, “if transceivers are compatibly configured, hailing can occur on an agreed-to channel. The first generation transceivers are fixed frequency and use Channel 0”.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So, I believe the Mars Program backward compatibility issue has been documented in 211.1-B-4. Would you agree ?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">From an international cross-support CCSDS standard point of view, what I have documented in this proposed Annex for default session control parameters is correct i.e., The Prox-1 standard (CCSDS 211.1-B-4) specifies Channel 1 as the hailing
channel for UHF at Mars at those frequencies above. Also per 211.1-B-4, Ch 0 is defined as the forward 437.1 MHz frequency, and the return frequency 401.585625.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best regards,<o:p></o:p></p>
<p class="MsoNormal">Greg<o:p></o:p></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span lang="EN-GB" style="font-size:12.0pt;color:black;mso-ligatures:none">From:
</span></b><span lang="EN-GB" style="font-size:12.0pt;color:black;mso-ligatures:none">DONA' Gabriele <</span><span lang="EN-GB"><a href="mailto:gabriele.dona@thalesaleniaspace.com"><span style="font-size:12.0pt;mso-ligatures:none">gabriele.dona@thalesaleniaspace.com</span></a></span><span lang="EN-GB" style="font-size:12.0pt;color:black;mso-ligatures:none">><br>
<b>Date: </b>Thursday, November 16, 2023 at 1:35 AM<br>
<b>To: </b>"Kazz, Greg (US 312B)" <</span><span lang="EN-GB"><a href="mailto:greg.j.kazz@jpl.nasa.gov"><span style="font-size:12.0pt;mso-ligatures:none">greg.j.kazz@jpl.nasa.gov</span></a></span><span lang="EN-GB" style="font-size:12.0pt;color:black;mso-ligatures:none">><br>
<b>Cc: </b>"</span><span lang="EN-GB"><a href="mailto:Brice.Dellandrea@esa.int"><span style="font-size:12.0pt;mso-ligatures:none">Brice.Dellandrea@esa.int</span></a></span><span lang="EN-GB" style="font-size:12.0pt;color:black;mso-ligatures:none">" <</span><span lang="EN-GB"><a href="mailto:Brice.Dellandrea@esa.int"><span style="font-size:12.0pt;mso-ligatures:none">Brice.Dellandrea@esa.int</span></a></span><span lang="EN-GB" style="font-size:12.0pt;color:black;mso-ligatures:none">><br>
<b>Subject: </b>[EXTERNAL] RE: Updated Proximity-1 Directives and Default Session Control Parameters for Lunar Operations<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="mso-ligatures:none"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D">Dear Greg,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I’m not sure whether I should reply to you or to the whole WGs. Anyway here’s my comment about the default parameters used to establish hailing.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">In Section A1.1 UHF BAND HAILING CHANNEL PARAMETERS, I believe the default hailing channel should be Channel 0 and not Channel 1. That is important to keep backward compatibility with existing transceivers. By
the way, there is a typo: Ch 0 (404.4 MHz) should read Ch 1 (404.4 MHz) instead. Then, if the intention is to allow hailing on other channels (e.g. channel 1), on specific cases/missions, then I have no objections.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I hope this comments helps.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Gabriele.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">P.S. In case you wandered, I am the engineering responsible for the UHF subsystems of the ExoMars missions for Thales Alenia Space.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D;mso-ligatures:none"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:18.0pt;font-family:"Brush Script MT";color:#002060;mso-ligatures:none;mso-fareast-language:FR">Gabriele Donà, Ph.D.</span><span lang="EN-GB" style="color:#1F497D;mso-ligatures:none;mso-fareast-language:FR"><br>
</span><span lang="EN-GB" style="color:#5ABED3;mso-ligatures:none;mso-fareast-language:FR">Thales Specialist<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#5ABED3;mso-ligatures:none;mso-fareast-language:FR">Head of Data Systems & Communication Department</span><span lang="EN-GB" style="color:#1F497D;mso-ligatures:none;mso-fareast-language:FR"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D;mso-ligatures:none;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#5ABED3;mso-ligatures:none;mso-fareast-language:FR">Phone:
</span><span lang="EN-GB" style="color:black;mso-ligatures:none;mso-fareast-language:FR">+39 011 7180 555<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-GB" style="color:#5ABED3;mso-ligatures:none;mso-fareast-language:FR">Mobile:
</span><span lang="EN-GB" style="color:black;mso-ligatures:none;mso-fareast-language:FR">+39 380 591 6240<o:p></o:p></span></p>
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</span><span lang="EN-GB"><a href="https://urldefense.us/v3/__https:/gcc02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.us*2Fv3*2F__https*3A*2Fjoin3.thalesgroup.com*2F__*3B!!PvBDto6Hs4WbVuu7!L1wAVo628dCMgtpAAumuBTZAr-X3maH_jE88g_kNyAIz5t8dXwpN9AfIWXmU1LBJ8LslZfBgCPKTxNV-al8m1fXa6YllEl-cROvbRj7H*24&data=05*7C01*7Cgreg.j.kazz*40jpl.nasa.gov*7C6bd82a8784d54ec3ebc908dbead4e655*7C7005d45845be48ae8140d43da96dd17b*7C0*7C0*7C638361972358380601*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=kGy*2F9lUNVWnvE0J3uUkFnJ206KtfhWDEuA5zczIal5Y*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUl!!PvBDto6Hs4WbVuu7!NYSi5qAX73LVfnYbu5I9PALycDVAuXN2Whx6UQwAiO4OEXoRXPuUrSXHgHmtF7Gsh1CBDamPNbN31LK4I590Nb0VuU5JTMxf$"><span style="color:blue;mso-ligatures:none;mso-fareast-language:FR">https://join3.thalesgroup.com/</span></a></span><span lang="EN-GB" style="color:black;mso-ligatures:none;mso-fareast-language:FR"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#5ABED3;mso-ligatures:none;mso-fareast-language:FR">Participant PIN:
</span><span lang="EN-GB" style="color:black;mso-ligatures:none;mso-fareast-language:FR">988 455<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="mso-ligatures:none">From:</span></b><span style="mso-ligatures:none"> SLS-SLP <</span><span lang="EN-GB"><a href="mailto:sls-slp-bounces@mailman.ccsds.org"><span lang="EN-US" style="mso-ligatures:none">sls-slp-bounces@mailman.ccsds.org</span></a></span><span style="mso-ligatures:none">>
<b>On Behalf Of </b>Kazz, Greg (US 312B) via SLS-SLP<br>
<b>Sent:</b> 15 November 2023 23:29<br>
<b>To:</b> Kazz, Greg (US 312B) via SLS-SLP <</span><span lang="EN-GB"><a href="mailto:sls-slp@mailman.ccsds.org"><span lang="EN-US" style="mso-ligatures:none">sls-slp@mailman.ccsds.org</span></a></span><span style="mso-ligatures:none">>; Space Link Coding
& Synchronization Working Group <</span><span lang="EN-GB"><a href="mailto:sls-cc@mailman.ccsds.org"><span lang="EN-US" style="mso-ligatures:none">sls-cc@mailman.ccsds.org</span></a></span><span style="mso-ligatures:none">>;
</span><span lang="EN-GB"><a href="mailto:sls-rfm@mailman.ccsds.org"><span lang="EN-US" style="mso-ligatures:none">sls-rfm@mailman.ccsds.org</span></a></span><span style="mso-ligatures:none"><br>
<b>Cc:</b> Brice Dellandrea <</span><span lang="EN-GB"><a href="mailto:Brice.Dellandrea@esa.int"><span lang="EN-US" style="mso-ligatures:none">Brice.Dellandrea@esa.int</span></a></span><span style="mso-ligatures:none">><br>
<b>Subject:</b> [Sls-slp] Updated Proximity-1 Directives and Default Session Control Parameters for Lunar Operations<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal">Dear CCSDS SLP, C&S, and RFM WGs,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I took the liberty of updating both the Proximity-1 Directive Set as well as the Default Session Control Parameters for Lunar Operations, based upon the inputs provided at the Fall CCSDS Meeting recently concluded in The Hague (Joint meeting
held on Nov. 10, 2023).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The update to both the Lunar Proximity directives and the default session parameters is in the CWE now under this SLP WG directory:<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB"><a href="https://urldefense.us/v3/__https:/gcc02.safelinks.protection.outlook.com/?url=https*3A*2F*2Furldefense.us*2Fv3*2F__https*3A*2Fcwe.ccsds.org*2Fsls*2Fdocs*2FForms*2FAllItems.aspx*3FRootFolder*3D*2Fsls*2Fdocs*2FSLS*2DSLP*2FMeeting*20Materials*2F2023*2FFall*2FPost*20Meeting*20Prox*201*20work*26FolderCTID*3D0x012000439B56FF51847E41B5728F9730D7B55F*26View*3D*7BAE8FB44C*2DE80A*2D42CF*2D8558*2DFB495ABB675F*7D__*3BJSUlJSUlJSUlJSUlJSUlJSUlJQ!!PvBDto6Hs4WbVuu7!L1wAVo628dCMgtpAAumuBTZAr-X3maH_jE88g_kNyAIz5t8dXwpN9AfIWXmU1LBJ8LslZfBgCPKTxNV-al8m1fXa6YllEl-cRGoUqlwQ*24&data=05*7C01*7Cgreg.j.kazz*40jpl.nasa.gov*7C6bd82a8784d54ec3ebc908dbead4e655*7C7005d45845be48ae8140d43da96dd17b*7C0*7C0*7C638361972358380601*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=vI5ApVKJqs5v8HUPtnvBxM*2Bukb5wazD5AqHpaa3f79A*3D&reserved=0__;JSUlJSUlJSUlJSUlJSoqKioqKioqKioqKiolJSUlKioqKioqJSUlJSUlJSUlJSUlJSUlJSUlJQ!!PvBDto6Hs4WbVuu7!NYSi5qAX73LVfnYbu5I9PALycDVAuXN2Whx6UQwAiO4OEXoRXPuUrSXHgHmtF7Gsh1CBDamPNbN31LK4I590Nb0VuXWL0ftQ$"><span lang="EN-US">https://cwe.ccsds.org/sls/docs/Forms/AllItems.aspx?RootFolder=%2Fsls%2Fdocs%2FSLS%2DSLP%2FMeeting%20Materials%2F2023%2FFall%2FPost%20Meeting%20Prox%201%20work&FolderCTID=0x012000439B56FF51847E41B5728F9730D7B55F&View=%7BAE8FB44C%2DE80A%2D42CF%2D8558%2DFB495ABB675F%7D</span></a></span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">There are still several TBDs remaining to be resolved including the action items taken by the RFM WG (e.g., define specific hailing and working channel frequencies at S-band, etc)<o:p></o:p></p>
<p class="MsoNormal">I am also interested to know if you have specific values for the new parameter: Mod Index.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Please let me know if you have comments, so that I can incorporate them into these two normative annexes which will reside in the restructured Space Data Link Protocol Session Control Blue Book.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best regards,<o:p></o:p></p>
<p class="MsoNormal">Greg<o:p></o:p></p>
</div>
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