25 September 2019 4 3K Report

Hi, can anybody please let me know if there any software package for calculating planetary orbital element determination? For instance, if the position of two points (radius), true anomalies of the points, and flight time of a planetary transfer ellipse are given, then, how to calculate the line of apsides using a software? I understand that I can do it manually in the trial-and-error procedure, but I would like to use the software, if any.

Thank you!

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