This Python script graphs telemetry data generated by Mechjeb.
To save telemetry, open Mechjeb's Flight Recorder window and click "CSV". The CSV file generated file will be found under GameData/MechJeb2/Export of your KSP install.
This script requires Python 3.6+ and Matplotlib.
For usage information, run ksp-telemetry.py -h.
It is currently untested on Windows and MacOS.
This script is licensed under the GNU General Public License v3.