This program can be freely distributed provided using for non-commercial purposes and since the authors are cited in references.
This is a computer program to convert satellite orbital parameters and time ephemeris. It runs on Windows, coded in Visual Basic with a Fortran numerical library to perform convertions.
It was developed in Visual Basic, with a Fortran math library in Windows 97 operating system. Since the program was not rebuilt or compiled again in newer OS, you should expect some bugs.
The PDF manual is simple and brief. The reason is that the program itself is self-explanatory and intuitive.
The Windows version of the program is available for download here.
The picture shows a screenshot of ORBED to edit the Keplerian orbital elements