Tvisha Kapadia

Conflict of Interest Statement None of the authors have a conflict of interest to disclose. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request. Supporting Information Filename Description maps70121-sup-0001-supinfo.docxWord 2007 document , 201 KB Figure S1. Continuum removal method used in the study as described by Clark (1987).

Submitted: 13 November 2025 You are already at the latest version The Imaging Infra-Red Spectrometer (IIRS) is the most advanced reflectance spectrometer currently orbiting the Moon. IIRS was launched on-board Chandrayaan-2 in 2019 to image the lunar surface in the wavelength range of 0.8 to 5.0 µm in 250 contiguous bands at a high spatial resolution of ~80 m/pixel and a spectral resolution of 20-25 nm. The IIRS strips are available in the PDS4-compliant QUB file format.