Sample artificial spectrum of the telluric lines in the Hα region.
Telluric line templates include only one échelle order and are therefore small, about 14 KB. All were developed for the older camera, CCD1.
Right click on link to download desired file.
Hα region templates by Kevin Croxall:Hα region template by Noel Richardson: wet4.fits
He I λ5876 and Na I D line region template by Greg Thompson: gregHeI5876.fits