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calceph 3.5.1

Astronomical library to access the binary planetary ephemeris files

The CALCEPH Library is designed to access the binary planetary ephemeris files, such INPOPxx and JPL DExxx ephemeris files, (called original JPL binary or INPOP 2.0 or 3.0 binary ephemeris files in the next sections) and the SPICE kernel files (called SPICE ephemeris files in the next sections). At the moment, supported SPICE files are:

  • text Planetary Constants Kernel (KPL/PCK) files;

  • binary PCK (DAF/PCK) files;

  • binary SPK (DAF/SPK) files containing segments of type 1, 2, 3, 5, 8, 9, 12, 13, 17, 18, 19, 20, 21, 102, 103 and 120;

  • meta kernel (KPL/MK) files;

  • frame kernel (KPL/FK) files (only basic support).


Install calceph 3.5.1 as follows:

guix install calceph@3.5.1

Or install the latest version:

guix install calceph

You can also install packages in augmented, pure or containerized environments for development or simply to try them out without polluting your user profile. See the guix shell documentation for more information.