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I'm going to disagree with all of the previous answers. I would argue that implementing your own Ephemeris program is borderline trivial once you know the format of the files and have the relatively simple equations for using the polynomials for computing the positions. The task is well within the realm of a beginner programmer. The format of the file is ...


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The article Format of the JPL Ephemeris Files has a detailed breakdown of how to use the Development Ephemeris including an example walkthrough and example source code. I think you have a lot of superfluous information, all you really need is: $$ \sum_{i=1}^{n}a_i T_i(x) $$ Where $a_i$ are the coefficients, $x$ is the time variable normalized to the interval ...


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