AW: [MOIMS-NAV-EXEC] FDM and RDM concept papers

[Reinhard.Kiehling at dlr.de]

Dear Alexandru

We have dicussed your concept papers in our team and have the following remarks:




1.    RDM


-          Missing epoch of given orbital elements

-          Dispersion in longitude/latitude not really useful; better would be the geometry of a dispersion ellipse on ground (both axes: semi-major and -minor as well as orientation vector of ellipse on ground)

-          Proposed additional entry: controlled reentry true/false

-          Proposed additional entry: Dispersion of remaining lifetime (e.g. ESA is using a +/-20% for reentry predictions)

-          Dispersion 1 or 3 sigma?

-          Handling of Re-entry without impact (i.e. objects/fragments which are burned up and do not reach Earth's surface but are threat for air-traffic)? May be probability whether object/fragments will reach the ground?

-          In the sample all data are within the "meta data" brackets; are they all optional? Are there other data (e.g. ephemeris, etc) planned? It is not clear what the core information is.



2.    FDM

Use cases/scenarios are not clear to us.



Best regards
Reinhard



--------------------------
Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
German Aerospace Center
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Dr. Reinhard Kiehling | Head of Flight Dynamics Services
Telephone +49 8153 28-2676 | Telefax +49 8153 28-1450 | reinhard.kiehling at dlr.de<mailto:reinhard.kiehling at dlr.de>
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Von: moims-nav-exec-bounces at mailman.ccsds.org [mailto:moims-nav-exec-bounces at mailman.ccsds.org] Im Auftrag von Alexandru.Mancas at esa.int
Gesendet: Mittwoch, 13. Januar 2016 14:57
An: moims-nav-exec at mailman.ccsds.org
Betreff: [MOIMS-NAV-EXEC] FDM and RDM concept papers

Dear Navigation WG members,

As we discussed during today's meeting, I am sending you the final versions of the Fragmentation and Re-entry Data Message concept papers. If you have any questions you can ask Tim or I.

Best regards
Alexandru Mancas



GMV for ESA - European Space Agency

Alexandru Mancas
Space Surveillance and Tracking System Engineer
Space Situational Awareness Programme

ESOC
Robert-Bosch-Str. 5
64293 Darmstadt
Germany
alexandru.mancas at esa.int<mailto:alexandru.mancas at esa.int> | http://sst.ssa.esa.int<http://sst.ssa.esa.int/>
T +49 (0)6151 902 205

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