13.3 Gratings

Below, for each grating mode of STIS, we provide the basic properties of the mode, wavelength ranges covered in each central wavelength setting, sensitivities and throughputs, dispersions and plate scales. Advice on use is provided where appropriate and comparisons of the G230L, G230M MAMA modes with their G230LB, G230MB CCD counterparts are shown.

Wavelengths in this handbook and in STIS data products are always measured in vacuum conditions.