Development of a compact low-mass wide-angle CCD camera for earth observation

摘要

Abstract: This paper concerns the development of a compact low-mass wide angle CCD camera for Earth observation. The project will take advantage of the opportunity of a low-cost, short time scale launch to produce early data demonstrating the technology available for 'small cloud' detection, and is of particular interest to future Earth Observing satellite instruments involved in the measurement of sea surface temperature. The 2.5 kg camera will operate at visible wavelengths, and use a large format CCD to achieve 250 m by 250 m resolution on the ground, and with a field of view of plus or minus 8.5 degrees (equivalent to 194 by 144 km on the ground). The challenge in the designing and building of this instrument has been the need to maintain performance with restrictions on the available space, mass, power, and schedule. This paper describes the scientific objectives, system, and detailed design of the camera. !4