First impressions from the PRISMA hyperspectral mission

PRISMA is a hyperspectral mission launched by the Italian Space Agency on 21 March 2019. PRISMA is the spaceborne hyperspectral sensor which provides imageries of the Earth's surface with (i) global coverage of 30 km x 30 km with a total acquisition capacity of 1800 km in a continuous strip, and (ii) spectral resolution of 12 nm for the contiguous bands (400-2500 nm wavelength). This study presents a review of the hyperspectral datasets from PRISMA for geological applications. A few geological regions from India are selected to check the capability of the PRISMA datasets. Dimensionality reduction and spectral analysis were performed and narrowband indices were generated. Few constraints with the previous hyperspectral sensors, i.e. large swath with a medium resolution camera on-board, are now covered in the PRISMA mission. This study is focused on the characteristics and compatibilities of the PRISMA hyperspectral sensor and will be beneficial to the scientific and users community.