GOME-2 scanning spectrometer

Underneath the thermal insulation cover there is a complex set of telescopes and prisms through which incoming light is initially separated into four main bandwidths. Different gases in the atmosphere absorb different wavelengths of light. The GOME-2 spectrometer is used to split the light into different wavelengths to reveal absorption lines, which correspond to certain gases present the observed sample. GOME-2 covers the 240-790 nm wavelength regions, that is wavelengths covering ultraviolet and visible light.