Transit times were generated using the General Mission Analysis Tool (GMAT) and Matlab. 
Matlab
Transit times were generated using the General Mission Analysis Tool (GMAT) and Matlab. 
GMAT
These times were then input into the National Aeronautics and Space Administration (NASA) Online Tool for the Assessment of Radiation In Space (OLTARIS) computer simulator to estimate doses received by an astronaut for the three propulsion methods.



OLTARIS