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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi All,<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">I understand that the action (on me…) on the visibility analysis is still not complete. I will check in with the person here (Ricky) doing the work and see where he is. I understand that he is liaising
with JPL on this as well. <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">I would like to present the results of this work (before London) so we have all the facts in hand.
<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">I will hopefully have an update before the end of this week.<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-fareast-language:EN-US"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="color:black;mso-fareast-language:EN-US">Matthew Cosby</span></b><span style="color:black;mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="layout-grid-mode:line">Chief Technology Officer
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="color:black;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-fareast-language:EN-US"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><span style="color:black"><img width="565" height="141" style="width:5.8854in;height:1.4687in" id="Picture_x0020_1" src="cid:image001.jpg@01DAF862.CA6B3D00" alt="signature_1318327456"></span><o:p></o:p></p>
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<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 lang="EN-US" style="font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-family:"Calibri",sans-serif"> SLS-SLP <sls-slp-bounces@mailman.ccsds.org>
<b>On Behalf Of </b>Shames, Peter M (US 312B) via SLS-SLP<br>
<b>Sent:</b> Monday, August 26, 2024 8:26 PM<br>
<b>To:</b> Kazz, Greg (US 312B) <greg.j.kazz@jpl.nasa.gov>; Ignacio.Aguilar.Sanchez@esa.int; 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 lang="EN-US">Thanks Greg. I concur, in advance, with moving this forward.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I do also wish to point out that we will also need to update the SCIS Assignment Procedures document, CCSDS 320.0-M-7, and also the SANA SCID website. These should be updated in parallel so that the SCID assignment and
SANA changes are ready at the same time as the AOS changes are.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have not analyzed these in detail, but believe that the changes are relatively minor. That said, once this entire package is assembled and put in place I think a broad announcement should go out informing all of the
CCSDS agencies and affiliated organizations of this change and of this 4X increase in AOS SCID namespace.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks, Peter<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span lang="EN-US" style="font-size:12.0pt;color:black">From:
</span></b><span lang="EN-US" style="font-size:12.0pt;color:black">Kazz, Greg (US 312B) <<a href="mailto:greg.j.kazz@jpl.nasa.gov">greg.j.kazz@jpl.nasa.gov</a>><br>
<b>Date: </b>Monday, August 26, 2024 at 11:23</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black"> </span><span lang="EN-US" style="font-size:12.0pt;color:black">AM<br>
<b>To: </b><a href="mailto:Ignacio.Aguilar.Sanchez@esa.int">Ignacio.Aguilar.Sanchez@esa.int</a> <<a href="mailto:Ignacio.Aguilar.Sanchez@esa.int">Ignacio.Aguilar.Sanchez@esa.int</a>>, Shames, Peter M (US 312B) <<a href="mailto:peter.m.shames@jpl.nasa.gov">peter.m.shames@jpl.nasa.gov</a>>,
Lux, Jim (US 3370) <<a href="mailto:james.p.lux@jpl.nasa.gov">james.p.lux@jpl.nasa.gov</a>>, Kazz, Greg (US 312B) via SLS-SLP <<a href="mailto:sls-slp@mailman.ccsds.org">sls-slp@mailman.ccsds.org</a>>, Thomas Gannett <<a href="mailto:thomas.gannett@tgannett.net">thomas.gannett@tgannett.net</a>><br>
<b>Subject: </b>Extending AOS Version 2 SCID by two bits - Pink Sheets<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Dear Ignacio and SLP WG,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> </span><span lang="EN-US"><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.</span><span lang="EN-US"><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.</span><span lang="EN-US"><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. </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> </span><span lang="EN-US"><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="color:black;background: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.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> </span><span lang="EN-US"><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.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Best regards,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Greg</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">SLP WG Chair</span><span lang="EN-US"><o:p></o:p></span></p>
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