Quadrant-CCD star tracker
We discuss the characteristics of a Quadrant-CCD developed by Tektronix for pointing and tracking applications. The device is discussed in the context of its application to the Johns Hopkins University adaptive optics program, where it is being used for the correction of stellar image motion resulting from atmospheric turbulence. The transfer function of the device is discussed and results are presented which demonstrate the Quadrant-CCDs capability to provide offset signals to control a rapid guiding mirror in the Johns Hopkins instrument.
Additional Information© 1990 The International Society for Optical Engineering. SPIE. The Johns Hopkins University wishes to thank the Seaver Institute for their generous support of the Johns Hopkins adaptive optics program.
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