OSIRIS onboard ODIN

OSIRIS (Optical Spectrograph and InfraRed Imager System) is the first instrument to measure the concentration of ozone depleting pollutants and to positively identify human-generated events that contribute to the problem. Odin is a Swedish-led international satellite mission to address a number of important issues in astronomy and atmospheric sciences. It involves Canada, Finland, and France. (Credit: Canadian Space Agency)