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22 December 2006 Design and development of the multispectral payload for TWSAT mission
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Abstract
Third World Satellite (TWSAT) is a small satellite of the Indian Space Research Organization (ISRO), weighing approximately 100 kg. This spacecraft will carry a 37-meter ground resolution, four band multispectral optical payload. This is a low cost, quick to develop, payload for studies of coastal regions, forestry, agriculture and related applications. The payload features four identical lens assemblies, each of which is designed to operate in a particular spectral band by using an appropriate band pass filter. The optical design is innovative in being usable over a spectral range of 450 to 860 nm. The design of the lens assembly is very compact, and as a result the payload is also small and commensurate with a small satellite. This payload is expected to reduce cost drastically compared to previous payloads by using qualified, commercial components to a large extent. The mechanical design of the payload features a monolithic, light weighted, aluminum main structure. This structure supports the lens assemblies on one side, and the detector head assemblies on the other side. This paper presents the optical and mechanical design of the electro-optic module, and the various tests proposed to be carried out to qualify the payload for space use.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Saji A. Kuriakose, D. Subrahmanyam, S. S. Sarkar, V. D. Patel, and Neeraj Mathur "Design and development of the multispectral payload for TWSAT mission", Proc. SPIE 6405, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques, and Applications, 640516 (22 December 2006); https://doi.org/10.1117/12.693863
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