[amsat-bb] General Astrodynamics Library v0.2.0

Paul Willmott pwillmott at northrock.bm
Tue May 13 14:36:45 PDT 2008

The latest version of the General Astrodynamics Library has been  
released. Version 0.2.0 can be downloaded from:


New features in this release include:

SGP4 orbit propagator based upon David Vallado's combined SGP4/SDP4  

Additional time conversion routines

ITRF-GCRF-ITRF position and velocity reference frame transforms based  
upon IAU2000A/B & IAU2006A resolutions.

Gravity model support added

Ellipsoid model support added.

The General Astrodynamics Library (GAL) is a numerical library for C  
and C++ programmers. It is free software under the GNU General Public  

The library provides a wide range of astrodynamical routines such as  
ephemerides, earth orientation, and orbit propagation. There are over  
210 functions in total with an extensive test suite.

Next up numerical orbit propagation.

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