News & Features Apply Refine results Type Article News Categories Satellites Organisation Metop Tags IASI Metop Launch Press Release Date 2018 Date December SHOW ALL 1 result News 13 December 2018 Metop-C’s IASI instrument delivers first spectrum A critical element of polar-orbiting meteorological satellite Metop-C’s payload – the Infrared Atmospheric Sounding Interferometer (IASI) – delivered its first spectrum today.