using TLE2Keplerian to convert for GMAT

the python script is on Gitlab

This example uses Tian He core stage as example, NORAD id is 48275, so the TLE text file is named as 48275.txt

1. prepare a text file with 3 lines

first line : TIANHE_CORE

second and third line: TLE

run "anaconda prompt"

goto directory where the python script is located

type 48275.txt | python TLE2Keplerian.py > out.txt

the keplerian elements are now saved in the out.txt file.

using myfirst.script as template, replace keplerian element lines with the data just generated

 copy and paste the output into another text file, named as 48275.script

these lines are kept the same every time:

GMAT $$$$$.DateFormat = UTCGregorian;
GMAT $$$$$.Epoch = '01 Jan 2000 11:59:28.000';
GMAT $$$$$.CoordinateSystem = EarthMJ2000Eq;
GMAT $$$$$.DisplayStateType = Keplerian; 

replace $$$$$ with name of your satellite

run GMAT

File >New >Mission

File > Open>  myfirst_48275.script

press the run button or press F5:

 if everything is ok, you will the nice plots.

before closing GMAT, you can save the script files from GMAT