CALCEPH

Presentation

This open-source library is designed to access the binary planetary ephemeris files, such INPOPxx, JPL DExxx and SPICE ephemeris files.

This library provides a C Application Programming Interface (API) , Fortran 77/2003, Python 3 and octave/Matlab interfaces to be called by the application.

This library is distributed under one these licences CECILL-C, CECILL-B or CECILL.

Sources and installation

The library may be installed from the sources or from the binary packages.

• Last stable version 5.0.0 (July 2026), source code calceph-5.0.0.tar.gz

• Development version on the gitlab repository.

• Binary packages are available through the Installation.

Contact

The library is written by the research team Astronomie et systèmes dynamiques (CNRS/Observatoire de Paris/LTE).

To report issues, select the project CALCEPH in the bug tracker https://mantisbt.imcce.fr/ .

For all comments concerning these pages, contact the authors: Mickael.Gastineau@obspm.fr.