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Trajectory Analysis Program (TAP)
AEROSPACE CORP EL SEGUNDO CA SYSTEMS ENGINEERING OPERATIONS
The Trajectory Analysis Program TAP is designed specifically for use on the CDC 6000 series machine as a computational tool to generate trajectories by different mathematical formulations and to compare the results. In particular, the reference trajectory is the result of numerical integration of the equations of motion in a Cowell formulation with time as the independent variable whereas, the comparison trajectory selected is achieved by an analytic Pines, Kyner, or Escobal or a numerically integrated Encke classical or modified formulation. A comprehensive description is presented of the algorithms implemented in TAP with emphasis on characteristics such as logic flow, equations, numerical techniques, comparison differencing, and plotting. A basic usage guide is included with complete instructions for input data preparation and explanations of output tables.
Approved for public release; distribution is unlimited.