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Adjoint sensitivity analysis of orbital mechanics : application to computations of observables' partials with respect to harmonics of the planetary gravity fields.

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dc.contributor.author Ustinov, Eugene A.
dc.contributor.author Sunseri, Richard F.
dc.date.accessioned 2008-02-06T21:35:35Z
dc.date.available 2008-02-06T21:35:35Z
dc.date.issued 2005-04-24
dc.identifier.citation European Geosciences Union General Assembly, Vienna, Austria, April 24 – 29, 2005 en
dc.identifier.clearanceno 05-0986
dc.identifier.uri http://hdl.handle.net/2014/40634
dc.description.abstract An approach is presented to the inversion of gravity fields based on evaluation of partials of observables with respect to gravity harmonics using the solution of adjoint problem of orbital dynamics of the spacecraft. Corresponding adjoint operator is derived directly from the linear operator of the linearized forward problem of orbital dynamics. The resulting adjoint problem is similar to the forward problem and can be solved by the same methods. For given highest degree N of gravity harmonics desired, this method involves integration of N adjoint solutions as compared to integration of N2 partials of the forward solution with respect to gravity harmonics in the conventional approach. Thus, for higher resolution gravity models, this approach becomes increasingly more effective in terms of computer resources as compared to the approach based on the solution of the forward problem of orbital dynamics. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 854995 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005. en
dc.subject planetary en
dc.subject gravity fields en
dc.title Adjoint sensitivity analysis of orbital mechanics : application to computations of observables' partials with respect to harmonics of the planetary gravity fields. en
dc.type Preprint en


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