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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi Marco,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">This is the reason I would like to present the findings of our internal analysis. I am speaking with the team tomorrow and will have an idea when they can present the data to this working group.
Hopefully within 2 weeks. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Cheers, Matt.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black;mso-ligatures:none;mso-fareast-language:EN-US"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="color:black;mso-ligatures:none;mso-fareast-language:EN-US">Matthew Cosby</span></b><span style="color:black;mso-ligatures:none;mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="mso-ligatures:none;layout-grid-mode:line">Chief Technology Officer
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="color:black;mso-ligatures:none;mso-fareast-language:EN-US">Goonhilly Earth Station Ltd<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="color:black;mso-ligatures:none;mso-fareast-language:EN-US"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><span style="color:black;mso-ligatures:none"><img width="565" height="141" style="width:5.8854in;height:1.4687in" id="Picture_x0020_1" src="cid:image001.jpg@01DAF949.4797A3E0" alt="signature_1318327456"></span><span style="mso-ligatures:none"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-ligatures:none">From:</span></b><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-ligatures:none"> SLS-SLP <sls-slp-bounces@mailman.ccsds.org>
<b>On Behalf Of </b>Marco Rovatti via SLS-SLP<br>
<b>Sent:</b> Wednesday, August 28, 2024 12:21 PM<br>
<b>To:</b> Kazz, Greg (US 312B) <greg.j.kazz@jpl.nasa.gov>; Ignacio Aguilar Sanchez <Ignacio.Aguilar.Sanchez@esa.int>; Shames, Peter M (US 312B) <peter.m.shames@jpl.nasa.gov>; Lux, Jim (US 3370) <james.p.lux@jpl.nasa.gov>; Kazz, Greg (US 312B) via SLS-SLP <sls-slp@mailman.ccsds.org>;
Thomas Gannett <thomas.gannett@tgannett.net><br>
<b>Subject:</b> Re: [Sls-slp] Extending AOS Version 2 SCID by two bits - Pink Sheets<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Hi all,
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">In my opinion, unless I’m missing something big, the situation with the Version 2 SCIDs does not look as bad as SANA said.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">From the SANA registry, I extracted the Address Space Report for Version 2, Protocol AOS (updated daily), here attached for your convenience.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">The situation for the X-band (by far the most critical) is the following:
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">Count of Scid<o:p></o:p></span></b></p>
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<p class="MsoNormal"><b><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">Row Labels<o:p></o:p></span></b></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">X-Band<o:p></o:p></span></b></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">X-Band Deep Space<o:p></o:p></span></b></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">X-Band Near Earth<o:p></o:p></span></b></p>
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<p class="MsoNormal"><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">Assigned<o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">80<o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">23<o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">151<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">Provisional<o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">1<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">Returned<o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">14<o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">4<o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">16<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">TBC<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">Grand Total<o:p></o:p></span></b></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">95<o:p></o:p></span></b></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">27<o:p></o:p></span></b></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b><span style="font-family:"Aptos Narrow",sans-serif;color:black;mso-ligatures:none">167<o:p></o:p></span></b></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Having 256 possible SCID for each sub-band, it seems that we are far from being in the middle of a crisis.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Am I wrong? If yes, where’s the catch?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">I understand that for the long term, a change in AOS blue book may become necessary, but for the time being and the short term, if the numbers above are confirmed,
I would rather stick to the current version. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Meanwhile, we may encourage to adopt USLP and perhaps start cashing the interests from the considerable investment the SLP WG made in developing the book.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Best regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Marco
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-ligatures:none">From:</span></b><span lang="EN-US" style="font-family:"Calibri",sans-serif;mso-ligatures:none"> SLS-SLP <sls-slp-bounces@mailman.ccsds.org>
<b>On Behalf Of </b>Kazz, Greg (US 312B) via SLS-SLP<br>
<b>Sent:</b> Monday, August 26, 2024 8:24 PM<br>
<b>To:</b> Ignacio Aguilar Sanchez <Ignacio.Aguilar.Sanchez@esa.int>; Shames, Peter M (US 312B) <peter.m.shames@jpl.nasa.gov>; Lux, Jim (US 3370) <james.p.lux@jpl.nasa.gov>; Kazz, Greg (US 312B) via SLS-SLP <sls-slp@mailman.ccsds.org>; Thomas Gannett <thomas.gannett@tgannett.net><br>
<b>Subject:</b> [Sls-slp] Extending AOS Version 2 SCID by two bits - Pink Sheets<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Dear Ignacio and SLP WG,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Attached are the pink sheets to extend the AOS Version 2 Spacecraft ID (SCID) from the current 8 to 10 bits.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">This extension is critical, since SANA has informed us all that there are no more Version 2 SCIDs available for assignment for new missions.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Recall that the SLP WG conducted a telecon on this subject a few months ago. The result of that telecon was to see if there was some hope to recycle some of the existing V2 SCIDs if analysis could
demonstrate that possibility. Since then, both NASA and UKSA came to the same conclusion that there are too many collisions to share those SCIDs. Therefore, the conclusion the SLP WG agreed to several months ago was to proceed with the SCID extension via pink
sheets. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">The secretariat has responded very timely and produced the attached pink sheets based upon the SLP WG input. All the other pending changes to the AOS SDLP (732.0) have already been captured before
(e.g., FHEC field). So we haven’t lost any updated information in the document. However, the secretariat has informed me that the SLP WG and Ignacio will need to agree to move these pink sheets forward
<i><span style="background:yellow;mso-highlight:yellow">before the end of this week</span></i> so that this SCID extension change can be included in the Agency Review that will be requested as a consequence of our Fall 2024 CCSDS meeting in London.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Therefore, I am asking both Ignacio and the SLP WG to review the attached pink sheets and to let me and the CCSDS Secretariat know if you find any issues with them. If none are received, then
we should go forward in putting these pink sheets into the Agency Review package for this AOS Space Data Link Protocol.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Greg<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">SLP WG Chair<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-ligatures:none">This message is intended only for the recipient(s) named above. It may contain proprietary information and/or protected content. Any unauthorised disclosure, use, retention or dissemination
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<o:p></o:p></span></p>
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