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My comments are broad and cannot be expressed with respect to
specific clauses.<br>
<br>
First, the Mean Elements Message should be deprecated. The intent
was to supplant the Two Line Element Set with more efficient and
widely applicable format. Russia, for example, uses a different
mean element model, and several providers use models descended from
Paul Cefola's DSST model based on equinoctical elements. The goal
was not achieved. TLE's persist and are incontrovertibly
institutionalized despite their well demonstrated deficiencies.<br>
<br>
Second, the Orbit Hybrid Message should be omitted. There are many
substantive comments on the proposed Hybrid message whose resolution
is to defer until the next meeting. In addition, a standard with a
preponderance of optional elements is not a standard. We faced a
similar issue with the CDM. What is required is consensus on the
minimum necessary for effective use. The credibility of a provider
is questionable when essential information is missing. Optional
elements are not the prerogative of the provider. They must be
negotiated between provider and recipient. This not a standard; it
is an ICD. Anything private between two parties is not a standard.
In fact, 26699 states that it is a guide for those who wish private
agreements.<br>
<br>
Finally, SC14/WG3 is the designated parallel developer, demonstrated
by the agreement between SC13 and SC14 that led to the ISO
registration with an SC14 designator. This must be negotiated
among SC14/WG3 members.<br>
<br>
Respectfully,<br>
<br>
Dave Finkleman<br>
<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 6/28/2015 11:59 AM, Berry, David S
(3920) wrote:<br>
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<div>Dan:</div>
<div><br>
</div>
<div>I've attached my review comments of the ODM P2.30, primarily
for sections 2 and 6, with a few Mfor Annex A. A number of the
suggested changes could affect section 7, so I excluded that
from consideration at this time.</div>
<div><br>
</div>
<div>Regards,</div>
<div>David</div>
<div><br>
</div>
<div>P.S.: To all in the WG... please try to complete your ODM
review assignment as soon as possible (Section 2, 6, and Annex
A... we can deal with other sections in future drafts). I'm not
sure how much feedback Dan has received to date but our target
date was 15-Jun-2015 (YES, I'm late too...).</div>
<div><br>
</div>
<div>Thanks!</div>
<div>DSB</div>
<div><br>
</div>
<div><br>
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<span style="font-weight:bold">From: </span>"Oltrogge,
Daniel" <<a moz-do-not-send="true"
href="mailto:doltrogge@agi.com">doltrogge@agi.com</a>><br>
<span style="font-weight:bold">Date: </span>Thursday, April
9, 2015 at 8:43 AM<br>
<span style="font-weight:bold">To: </span>"<a
moz-do-not-send="true"
href="mailto:moims-nav-exec@mailman.ccsds.org">moims-nav-exec@mailman.ccsds.org</a>"
<<a moz-do-not-send="true"
href="mailto:moims-nav-exec@mailman.ccsds.org">moims-nav-exec@mailman.ccsds.org</a>><br>
<span style="font-weight:bold">Cc: </span>David Berry <<a
moz-do-not-send="true"
href="mailto:David.S.Berry@jpl.nasa.gov">David.S.Berry@jpl.nasa.gov</a>><br>
<span style="font-weight:bold">Subject: </span>ODM v.2.30
Draft for your review...<br>
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<p class="MsoNormal">Per my ODM revision action item, here
is draft ODM v.2.30 which incorporates all of the 15
suggested revisions that you kindly provided me at the
Pasadena CCSDS meeting.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><br>
Dan<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Daniel L. Oltrogge<o:p></o:p></p>
<p class="MsoNormal">SDC Program Manager & Senior
Research Astrodynamicist<o:p></o:p></p>
<p class="MsoNormal">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: 719-660-5142; E-mail: <a
moz-do-not-send="true" href="mailto:oltrogge@agi.com">
oltrogge@agi.com</a><o:p></o:p></p>
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