Code for reducing, fitting and analyzing stellar spectrograph (SSG) data recorded at the McMath-Pierce solar telescope on Kitt Peak. See, e.g., Oliversen et al. "Sunlit Io atmospheric [O I] 6300 A emission and the plasma torus," JGR, 106, A11, 2001.

This depends on

https://github.com/jpmorgen/ephem.git https://github.com/jpmorgen/IDL_tokens.git https://github.com/jpmorgen/PFO.git (ssg_pfo branch) https://github.com/jpmorgen/SSO.git https://github.com/jpmorgen/util.git