GLORIA-AB, which is an instrument that takes images in the infrared spectra, is currently being developed by the Jülich and Karlsruhe Research Centres in Germany. The sensor will take measurements at different spectral resolutions and hence address different scientific priorities that require either a larger set of atmospheric constituents (for which higher spectral resolution is needed) or higher spatial resolution (implying faster measurement in lower spectral resolution). These same concepts will also be used for the infrared limb-sounder that could be carried on the PREMIER mission. The first scientific campaign of the airborne instrument is planned for early 2010.