MRO High Resolution Imaging Science Experiment (HiRISE): Instrument Development
2003
HiRISE Science Instrument The primary functional requirement of the HiRISE imager, figure 1 is to allow identification of both predicted and unknown features on the surface of Mars to a much finer resolution and contrast than previously possible [1], [2]. This results in a camera with a very wide swath width, 6km at 300km altitude, and a high signal to noise ratio, >100:1. Generation of terrain maps, 30 cm vertical resolution, from stereo images requires very accurate geometric calibration. The project limitations of mass, cost and schedule make the development challenging. In addition, the spacecraft stability [4] must not be a major limitation to image quality. The nominal orbit for the science phase of the mission is a 3pm orbit of 255 by 320 km with periapsis locked to the south pole. The track velocity is approximately 3,400 m/s.
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