Are these also available online somewhere?  We might want to thin these a bit as well, but it would be nice to be able to point to the originals if they are easily available for users to download on their own.

I have some ideas about how to smartly thin this (and the bandpasses) in a way that keeps the structure when necessary, but uses fewer points on smooth sections.  I'll push something when I have it ready.  I think that's the most effective way to speed up the chromatic code right now -- to use sparser sed and bandpass files.  But it would be nice to be able to point to the original if we do thin them out for what we put in the repo.