Yep, that’s correct. near UV towards left hand side and the whole thing is an emission spectrum.
Based on the sensitivity profile from other spectra, the wavelength span is around 360-650nm (ish!)
Continual failure with the usual elements in meteors is making me more convinced it is some sort of man made “stuff” re-entering.
No luck with an orbit so far, as that would at least help resolve the natural/man made issue.
However, if it is an artificial source there are not that many spectra of what’s coming back in so it’s still interesting in it’s own right!