Chandrayaan-2 made a map of sodium on the lunar surface for the first time. Which instrument on the Chandrayaan-2 orbiter generated the maps?

Chandrayaan-2 utilized the Imaging IR Spectrometer (IIRS) instrument on its orbiter to generate maps of sodium on the lunar surface. This instrument is designed to study the lunar surface's mineral composition and surface temperature. The IIRS operates in the infrared spectrum, allowing it to detect various elements, including sodium, by analyzing the spectral signatures they emit. The successful mapping of sodium is a significant achievement as it enhances our understanding of the lunar surface's composition and geochemical processes. This data is crucial for future missions aimed at lunar exploration and can provide insights into the Moon’s geological history.