NEA element catalogs

Catalogs of NEODyS orbital elements are available with or without covariance matrices. These catalogs can be read directly by OrbFit, or you can take the provided FORTRAN code to use in your own programs.

• Keplerian elements without covariance matrices: Catalog (~1MB) FORTRAN code
• Equinoctial elements with covariance matrices: Catalog (~9MB) FORTRAN code
• Proper elements and encounter conditions: Catalog (~6MB) Readme

Secular resonances

Plot of the NEAs affected by the main secular resonances