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The paper presents the design and development of Terrain Mapping Camera-2 (TMC-2) for Chandrayaan-2 including science objectives; system and sub-system configuration along with the realized performance of the camera; payload characterization; aspects related to data products, etc. TMC-2, onboard Chandrayaan-2 orbiter-craft is a follow-on of the Terrain Mapping Camera (TMC) onboard Chandrayaan-1. It operates in visible panchromatic band. It comprises three identical electro-optical chains aligned for three views (-25, 0 and +25 degree) along track direction for generation of stereo images. It provides data with 5 m horizontal ground sampling distance to generate digital elevation model. TMC-2 based on the new configuration and sub-system designs has reduction in mass and power by more than 40% compared to TMC, without compromising the performance.
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Chowdhury et al. (2020) studied this question.
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