There are two thermal infrared spectrometers (TIRS) taking measurements as part of the Polar Radiant Energy in the Far-InfraRed Experiment (PREFIRE), one aboard each of the two CubeSats positioned in asynchronous, near-polar orbits. The TIRS instruments measure far-infrared emissions from the Arctic and Antarctica, helping researchers better understand the Arctic energy budget and how far-infrared radiation plays a role in Arctic warming.
Content from all Earth science data sites are migrating into this site from now until end of 2026. Not all NASA Earth science data will appear across the site until then. Thank you for your patience as we make this transition.
Read about the Web Unification Project