The porkchop plot is the porkchop-shaped,computer-generated contour plot that displays the launch date and arrival date characteristics of an interplanetary flight path for a given launch opportunity between two celes...The porkchop plot is the porkchop-shaped,computer-generated contour plot that displays the launch date and arrival date characteristics of an interplanetary flight path for a given launch opportunity between two celestial bodies.We found that,when the gravity assistance of a planet is taken into account of an interplanetary transfer trajectory,the classical porkchop plot cannot give enough information for the interplanetary mission.In this regard,we have generalized the classical porkchop plot into the 3D porkchop plot that gives the launch,flyby,and arrival opportunity of the interplanetary mission.This paper presents an alternative opportunity for the Psyche asteroid mission with Mars’s gravity assist.Psyche is a largest M-type asteroid in the solar system and may be a good source of Platinum group metals.This paper also presents the analytical solution of the gravity assist model,which is useful for obtaining the optimal flyby radius and the optimal thrust impulse during the planetary gravity assist.展开更多
文摘The porkchop plot is the porkchop-shaped,computer-generated contour plot that displays the launch date and arrival date characteristics of an interplanetary flight path for a given launch opportunity between two celestial bodies.We found that,when the gravity assistance of a planet is taken into account of an interplanetary transfer trajectory,the classical porkchop plot cannot give enough information for the interplanetary mission.In this regard,we have generalized the classical porkchop plot into the 3D porkchop plot that gives the launch,flyby,and arrival opportunity of the interplanetary mission.This paper presents an alternative opportunity for the Psyche asteroid mission with Mars’s gravity assist.Psyche is a largest M-type asteroid in the solar system and may be a good source of Platinum group metals.This paper also presents the analytical solution of the gravity assist model,which is useful for obtaining the optimal flyby radius and the optimal thrust impulse during the planetary gravity assist.
