Vallado Fundamentals of Astrodynamics and Applications code
His code at his website, even as of 2018, has corrupted files. The files have been restored and otherwise unaltered.
Consider PyMap3D for Matlab, Python, Fortran coordinate conversions with clean modern code.
Cleanup process:
- find_bad_characters.py
dos2unix *
rename 'y/A-Z/a-z/' *
rename 's/\.for$/\.f/' *.for