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<p class="MsoNormal"><span style="font-size:12.0pt">Thanks all for your many inputs.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">I note that Alain had an interesting idea, which was that (paraphrasing) sharing of matrices could potentially be generalized such that a covariance exchange could be used to share an STM as well. But since
STMs are not symmetric (if I recall properly) and covariances are LTM, that’d probably not work. But it was a novel idea, much appreciated.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">I’ve decided to remove the STM section for this first version of the OCM, to be considered as a potential future enhancement.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Dan<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:#1F497D">__________________________<o:p></o:p></span></p>
<p class="MsoNormal">Dan Oltrogge<o:p></o:p></p>
<p class="MsoNormal">Director, Center for Space Standards and Innovation<o:p></o:p></p>
<p class="MsoNormal">Analytical Graphics, Incorporated<o:p></o:p></p>
<p class="MsoNormal">Voice: 719-482-4552 <span style="font-size:13.5pt">҉</span> E-mail:
<a href="mailto:oltrogge@agi.com"><span style="color:#0563C1">oltrogge@agi.com</span></a><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Halverson, Julie (GSFC-5990) <julie.halverson@nasa.gov>
<br>
<b>Sent:</b> Wednesday, September 9, 2020 2:11 PM<br>
<b>To:</b> Frank.Dreger@esa.int; Oltrogge, Daniel <doltrogge@agi.com><br>
<b>Cc:</b> moims-nav-exec@mailman.ccsds.org<br>
<b>Subject:</b> Re: [EXTERNAL] Re: [MOIMS-NAV-EXEC] Question about State Transition Matrix aspect to the OCM<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">And also fine with me.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Julie<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">-------------------------------------------<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Julie Halverson <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">NASA Goddard Space Flight Center<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Systems Engineer<o:p></o:p></span></p>
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<div>
<p class="MsoNormal"><span style="color:black">Space Science Mission Operations (SSMO)/Code 444<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">301-614-7016</span><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">From: </span></b><span style="font-size:12.0pt;color:black">MOIMS-NAV-EXEC <</span><a href="mailto:moims-nav-exec-bounces@mailman.ccsds.org"><span style="font-size:12.0pt">moims-nav-exec-bounces@mailman.ccsds.org</span></a><span style="font-size:12.0pt;color:black">>
on behalf of "</span><a href="mailto:Frank.Dreger@esa.int"><span style="font-size:12.0pt">Frank.Dreger@esa.int</span></a><span style="font-size:12.0pt;color:black">" <</span><a href="mailto:Frank.Dreger@esa.int"><span style="font-size:12.0pt">Frank.Dreger@esa.int</span></a><span style="font-size:12.0pt;color:black">><br>
<b>Date: </b>Tuesday, September 8, 2020 at 3:40 AM<br>
<b>To: </b>"Oltrogge, Daniel" <</span><a href="mailto:doltrogge@agi.com"><span style="font-size:12.0pt">doltrogge@agi.com</span></a><span style="font-size:12.0pt;color:black">><br>
<b>Cc: </b>"</span><a href="mailto:moims-nav-exec@mailman.ccsds.org"><span style="font-size:12.0pt">moims-nav-exec@mailman.ccsds.org</span></a><span style="font-size:12.0pt;color:black">" <</span><a href="mailto:moims-nav-exec@mailman.ccsds.org"><span style="font-size:12.0pt">moims-nav-exec@mailman.ccsds.org</span></a><span style="font-size:12.0pt;color:black">><br>
<b>Subject: </b>[EXTERNAL] Re: [MOIMS-NAV-EXEC] Question about State Transition Matrix aspect to the OCM<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><br>
<span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Dear Dan,</span> <br>
<br>
<span style="font-size:10.0pt;font-family:"Verdana",sans-serif">No objection from my side.</span>
<o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Kind regards</span>
<o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Frank Dreger</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
</span><o:p></o:p></p>
<p><b><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">ESA – European Space Agency</span></b>
<o:p></o:p></p>
<p><b><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Frank Dreger</span></b><span style="font-size:10.0pt;font-family:"Verdana",sans-serif"><br>
Senior Flight Dynamics Service Manager<br>
Ground Systems Engineering and Innovation Department</span> <br>
<b><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:#8F8F8F">ESOC</span></b>
<o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Robert-Bosch-Str. 5, 64293 Darmstadt, Germany<br>
</span><a href="mailto:frank.dreger@esa.int"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">frank.dreger@esa.int</span></a><span style="font-size:10.0pt;font-family:"Verdana",sans-serif"> |
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T: +49 6151 90 2664</span> <o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span><br>
<br>
<br>
<br>
<span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5F5F5F">From: </span><span style="font-size:7.5pt;font-family:"Arial",sans-serif">"Oltrogge, Daniel" <</span><a href="mailto:doltrogge@agi.com"><span style="font-size:7.5pt;font-family:"Arial",sans-serif">doltrogge@agi.com</span></a><span style="font-size:7.5pt;font-family:"Arial",sans-serif">></span>
<br>
<span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5F5F5F">To: </span><span style="font-size:7.5pt;font-family:"Arial",sans-serif">"</span><a href="mailto:moims-nav-exec@mailman.ccsds.org"><span style="font-size:7.5pt;font-family:"Arial",sans-serif">moims-nav-exec@mailman.ccsds.org</span></a><span style="font-size:7.5pt;font-family:"Arial",sans-serif">"
<</span><a href="mailto:moims-nav-exec@mailman.ccsds.org"><span style="font-size:7.5pt;font-family:"Arial",sans-serif">moims-nav-exec@mailman.ccsds.org</span></a><span style="font-size:7.5pt;font-family:"Arial",sans-serif">></span>
<br>
<span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5F5F5F">Date: </span><span style="font-size:7.5pt;font-family:"Arial",sans-serif">2020/09/04 21:20</span>
<br>
<span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5F5F5F">Subject: </span><span style="font-size:7.5pt;font-family:"Arial",sans-serif">[MOIMS-NAV-EXEC] Question about State Transition Matrix aspect to the OCM</span>
<br>
<span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5F5F5F">Sent by: </span><span style="font-size:7.5pt;font-family:"Arial",sans-serif">"MOIMS-NAV-EXEC" <</span><a href="mailto:moims-nav-exec-bounces@mailman.ccsds.org"><span style="font-size:7.5pt;font-family:"Arial",sans-serif">moims-nav-exec-bounces@mailman.ccsds.org</span></a><span style="font-size:7.5pt;font-family:"Arial",sans-serif">></span>
<o:p></o:p></p>
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<span style="font-size:12.0pt">NAV WG Team:</span> <br>
<span style="font-size:12.0pt"> </span> <br>
<span style="font-size:12.0pt">Question regarding the new CCSDS Orbit Data Message (ODM) we are creating: Would anyone be heartbroken if we were to delete the State Transition Matrix data section? I worked to get that included so that we could map covariances
from one point to another and perturbations and/or small DVs downstream, but I’m now wondering if our projected use of this message feature warrants the effort and complications we can assume this will introduce into message adoption and testing.</span>
<br>
<span style="font-size:12.0pt"> </span> <br>
<span style="font-size:12.0pt">Does anyone in our group feel strongly that this STM message component should be retained?</span>
<br>
<span style="font-size:12.0pt"> </span> <br>
<span style="font-size:12.0pt">Thanks,</span> <br>
<span style="font-size:12.0pt"><br>
Dan</span> <br>
<span style="font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:#004080">__________________________</span>
<br>
<span style="font-size:10.0pt">Dan Oltrogge</span> <br>
<span style="font-size:10.0pt">Director, Center for Space Standards and Innovation</span>
<br>
<span style="font-size:10.0pt">Analytical Graphics, Incorporated</span> <br>
<span style="font-size:10.0pt">Voice: 719-482-4552 </span><span style="font-size:13.5pt">҉</span><span style="font-size:10.0pt"> E-mail:
</span><a href="mailto:oltrogge@agi.com"><span style="font-size:10.0pt;color:#0082BF">oltrogge@agi.com</span></a>
<br>
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