A Kalman Filter tracker algorithm is developed to increase track accuracy in the presence of scintillation. A simulation is developed which allows comparison of the Kalman Filter tracker to a Centroid tracker. This paper describes the development of the Kalman Filter tracker algorithm and the results of the simulation effort. The Kalman Filter Tracker formulation is described and sensitivity analyses are performed. The Kalman Filter is exercised on MIT Lincoln Lab data for comparison to real data and other algorithms. The results are discussed.