Impulsive deboost for maximum and minimum atmospheric entry angles at an assigned entry altitude is analyzed for specified retro-rocket velocity decrement in the cae of rocket vehicles initially moving in hyperbolic orbits. Existence conditions for minimum entry angle, tangential entry and entry at specified angle and cotangential transfer at a specified level are investigated.
机构:
Univ British Columbia, Dept Ophthalmol, Eye Care Ctr, Vancouver, BC V5Z 3N9, CanadaUniv British Columbia, Dept Ophthalmol, Eye Care Ctr, Vancouver, BC V5Z 3N9, Canada