The Mars 2020 mission launched on 30 July 2020 and arrived at Mars on 18 February 2021. Delivering the Perseverance rover to Jezero Crater required adjusting the postlaunch trajectory to remove the launch injection bias and target the atmospheric entry conditions and landing location, while also satisfying requirements on the propellant usage and nonnominal impact probability at Mars. The Mars 2020 maneuver design team achieved these goals by designing and executing three propulsive maneuvers in flight. The execution of those maneuvers delivered the spacecraft into the Martian atmosphere in a state that allowed for a successful entry, descent, and landing on the surface. This paper details the maneuver design process and describes the design and execution of the three in-flight maneuvers.
Mars 2020 Trajectory Correction Maneuver Design
Journal of Spacecraft and Rockets ; 59 , 4 ; 1193-1204
2022-07-01
Article (Journal)
Electronic Resource
English