The launch vehicle was chosen to be a reusable rocket such as the Falcon 9 rocket used by SpaceX. Whilst the rocket is not currently reusable it is expected that by 2027, when this architecture is projected to be implemented, that it would be. This re usability of this rocket would be extremely useful given the bi-directional nature of the mission architecture.
Relative Velocity of launch vehicle at rendezvous
Knowing the altitude and velocity the launch vehicle was required to have, the time taken to reach this point could be calculated for a sub-Earth orbit trajectory. Additionally, since the orbital plane of the eMMET was chosen to be coplanar with that of the moon, i.e. 18.28°, an optimal launch site could be determined.
Illustration of launch vehicle in sub-Earth Orbit
Illustration of orbital inclination
The launch site for the rocket to rendezvous with the eMMET was selected to be Satish Dhawan Space Centre, India.