Spectral Resolution vs Wavelength – Multi-Mission Comparisons:
ISO and SIRTF (shown alone for clarity)

In the graph above, the SIRTF instruments - IRAC, MIPS and IRS, and the ISO instruments - the Short Wavelength Spectrometer (SWS) and the Long Wavelength Spectrometer (LWS), are plotted in terms of spectral resolution (/) and wavelength. The instruments from these two missions are shown here seperately from the plot including SOFIA instruments for clarity.