| 摘要 |
PURPOSE:To attain easily a picture of objective in spin state, by obtaining an optical image of an objective located at the outside of a satellite on a screen of a camera in the spin satellite via a rotary flat mirror and a fixed flat mirror. CONSTITUTION:A rotation mechanism and control system 5 controls the rotary flat mirror 2 based on the spin rate data of the satellite main body detected with a sun sensor or the like so that the rotary flat mirror 2 is rotated in a half speed of the spin rate (omega) of the satellite main body 1 viewed from the inertia space and in opposite direction as the direction of rotation of the stellite main body 1. Thus, a still objective image is obtained on a mirror 3 fixed to the satellite 1. The mirror 3 leads the image to an optional position in the satellite, makes it incident to a two-dimensional image pickup device 4, allowing to attain the two-dimensional image of the objective in the spin satellite. |
