User Forum

Users may receive a 'Run time warning' when running a Mission Plan that propagates a spacecraft into the future. This warning lets users know that the EOP data file used by FreeFlyer does not fully cover the timespan of the Mission Plan. For additional context, FreeFlyer's EOP data file comes from t...

The Formation Object has built in Step and StepToEpoch Methods that can be used to Step the entire Formation with one line of script. Alternatively, you can use the Step Command to Step the entire Formation in the same way you would for a Spacecraft. Step using Step Command While (Spacecraft1.Elapse...

Help File Use Profiler The profiler reports information about how much time is spent in different sections of a Mission Plan. Profiler information is reported to a scopes file and a lines file. The profiler can help debug and optimize Mission Plans by tracking the execution time of different sectio...

Once the end of a SPICE Ephemeris file is reached, it may be desirable to continue propagation using one of FreeFlyer's built in Integrators. The Spacecraft.SetPropagatorType() Method can be used to switch from SpiceEphemeris Propagation to an Integrator such as RK89 Step 1: Create & Configure S...

VisibilityCalculator Objects can be used to create and manage multiple VisibilitySegments when you want to evaluate whether all or any of a set of segments are simultaneously true. The following example demonstrates configuration of a VisibilityCalculator Object to test whether a Formation Object w...

The WhileManeuvering/WhileStepping commands allow the user to execute arbitrary FreeFlyer script while simultaneously Maneuvering/Stepping the reference spacecraft. The command will first execute the internal Maneuver/Step according to the StepSize, then execute the FreeFlyer script during each iter...