Hyper-Spectral Imager in visible and near-infrared band for lunar compositional mapping

Journal of Earth system science

A Roy Chowdhury1¹  A S Kiran Kumar1¹ 

[1] Space Applications Centre, ISRO, Ahmedabad 380 015, India.$$

关键词: Hyper-Spectral Imager;    wedge filter;    spectral bands;    mineral mapping.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

India ’s first lunar mission,Chandrayaan-1,will have a Hyper-Spectral Imager in the visible and near-infrared spectral bands along with other instruments.The instrument will enable mineralogical mapping of the Moon ’s crust in a large number of spectral channels.The planned Hyper-Spectral Imager will be the first instrument to map the lunar surface with the capability of resolving the spectral region,0.4 to 0.92 𝜇 m in 64 continuous bands with a resolution of better than 15 nm and a spatial resolution of 80 m.Spectral separation will be done using a wedge filter and the image will be mapped onto an area detector.The detector output will be processed in the front-end processor to generate the 64-band data with 12-bit quantization.This paper gives a description of the Hyper-Spectral Imager instrument.

【 授权许可】

Unknown