

File names are in the form:
observation date followed by serial number, followed by file extension .fits, as in YYMMDD.NNN.fits prior to the year 2000 and YYYYMMDD.NNN.fits after.
Right click on link to download desired file.
Below is a sample spectrum of ι Herculis centered on the Hα region. There is also a .tar and .zip file of all Ritter spectra for this star in this wavelength region (64 spectra).
Below is a sample spectrum of ι Herculis centered on the Hβ region (4000-5500 angstroms). There is also a .tar and .zip file of all Ritter spectra for this star in this wavelength region (26 spectra).