Kattankulathur, India: SRM University. — 11 p.
Nominal trajectory – Trajectory simulated with the design input. Differences between the real and predicted values due to: manufacturing, measurement, atmospheric, modeling errors. These lead to errors between the positions of a desired and a real impact point. Estimation of these errors is very important. Methods of estimation: Root Mean Square Method; Monte Carlo method; Method of Co-variance matrix.