| The restrictions on the inclination angle of the probe at the perilune are discussed. |
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| The proposed approach takes into account various mission constraints in different phases from perilune to the landing site. |
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| The perilune slowly decreased to about 300 km and the apolune increased to about 3000 km, while the argument of perilune drifted around the south pole. |
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| The latter realizes the transfer by a single impulse at perilune. |
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| It is found that the maximum inclination at the perilune between the probe's orbit plane and the Moon's orbit plane is restricted by the heights of the perigee and the perilune of the free return trajectory. |
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| Thirteen examples were obtained on 23 April 2009 when the perilune altitude of Kaguya was 25 km over the South Pole Aitken region on the dayside of the Moon. |
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