Approcsimate Analysis of Transfers to Asteroids with a Planetary Perturbation Maneuvers

We summarize the results of long-term by this and other authors and propose engineering methods of accelerated optimization of transfers with planetary perturbation maneuvers near Venus, the Earth, Mars, Jupiter of various sequences. It permitted to reduce characteristic velocity for landing on Main Belt asteroids having moderate orbital excentricities and inclinations. The methods are simple and evident.