units

[cfd]

Can the units (metric) in GMAT be changed to English (feet and feet/sec)?

[jjkparker]

No, GMAT has fixed units (SI).

However, you can change units in the script before outputting:

Code: Select all

X_miles = mySC.EarthMJ2000Eq.X * 1000 / 1609.344
Report myReport X_miles


[cfd]

Thanks, I got this to work. But, the report reflects the first value and then stays at that value, that is, as the trajectory changes the value of the converted parameter stays at the initial converted value. How do I make the variable update throughout the propagation?

[jjkparker]

A full script implementing this would look something like:

Code: Select all

% other Create statements

Create Report myReport
myReport.Add = {} % don't report anything automatically; use Report command instead

BeginMissionSequence

% Write 10 lines at 5-second intervals
For i=1:10
    Propagate myProp(mySC) {mySC.ElapsedSecs = 5}
    X_miles = mySC.EarthMJ2000Eq.X * 1000 / 1609.344
    Report myReport X_miles
EndFor