JPL Ephemeris manager

manages the JPL planetary ephemeris files both on and off-line
Updated 31 Mar 2014

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This is a class that manages the JPL planetary ephemeris files from DE102 through DE431t. It can download the ascii files and use them directly or convert them to local binary files. Subsequently, the class can use these files to calculate position, velocity, and acceleration in whichever coordinates is stored. It can also return Nutation, Libration, Lunar Euler angle rates, and TT-TDB values if files contain them.
The class has been fully tested against all DE files available from JPL using JPL provided test points.
Works with DE-102,200,202,403,405,406,410,413,414,418,421,422,423,424,430,430t,431

Cite As

Kip Knight (2024). JPL Ephemeris manager (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2013a
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes

added more comments.
centralized variable for ftp download site.