Optical beam center position on an array of detectors is an important parameter that is essential for estimating the angle-of-arrival of the incoming signal beam. In this paper. we have examined the beam position estimation problem for photon-counting detector arrays. and to this end. http://www.diegojavierfares.com/flash-find-3930-Peoria-Orange-Barrels-Hat-p11299-flash-buy/