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Projeto Descrição

OREKIT (ORbits Extrapolation KIT) is a low level space dynamics Java library. It provides basic elements (such as orbits, dates, attitude, and frames) and various algorithms to handle them (such as conversions, analytical and numerical propagation, and pointing).

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2009-08-20 06:59 Back to release list
4.1

O equinócio da família baseada em quadros com IAU1980 precessão modelos de nutação que ainda são utilizados por muitos sistemas legados são agora suportadas. O mecanismo de carregamento de dados usado para recuperar dados IERS (Earth Orientation Parameters, UTC-história TAI) e efemérides JPL agora também é usado para recuperar arquivos de campo gravitacional. Este mecanismo também foi bastante melhorada para suportar novos casos de uso (carga de disco, de classpath, delegando a partir da rede de carregamento de uma biblioteca externa, etc.) Suporte para a escala de tempo TDB foi adicionado.
The equinox-based frames family with IAU1980 precession-nutation models that are still used by many legacy systems are now supported. The data loading mechanism used to retrieve IERS data (Earth Orientation Parameters, UTC-TAI history) and JPL ephemerides is now also used to retrieve gravity field files. This mechanism has also been vastly improved to support new use cases (loading from disk, from classpath, from network delegating loading to an external library, etc.). Support for the TDB time scale has been added.

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