posigrade การใช้

:* You have retrograde and posigrade reversed here.
The first burn should be a posigrade to increase velocity, raise apoapsis and increase the period.
So your altitude is the same at the point where you made the posigrade burn, and greater than before everywhere else.
The mission was to conduct a suborbital test flight and reentry of the spacecraft . The capsule had live posigrade separation rockets, but dummy retrorockets.
The Redstone coasted for 10 seconds after its engine cut off; then a sharp report signaled that the posigrade rockets were popping the spacecraft loose from the booster.