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The Step command advances the state of a Spacecraft, GroundVehicle, or Formation object forward or backwards in time. The epoch to which a Spacecraft or GroundVehicle is stepped is determined by the vehicle's Propagator or by a user-specified end condition. For more information, see the Stepping the Spacecraft, GroundVehicle Propagators, Lists and Formations guides.
Note: As of FreeFlyer 7.3, the default timing precision mode is nanosecond precision mode. For older Mission Plans that have not yet been converted from millisecond precision mode, the syntax for working with epochs and calendar date/time strings is different. A few samples are shown below; see the timing precision mode page for more information.
What to Step
Step to condition?
•Spacecraft Properties and Methods
•GroundVehicle Properties and Methods
•Formation Properties and Methods