Mid-Course Correction Contingency Analysis for the James Webb Space Telescope

Rashied, Taabish ; Stringer, Benjamin ; Petersen, Jeremy ; Richon, Karen

关键词: MIDCOURSE TRAJECTORIES;    CORRECTION;    DELAY;    JAMES WEBB SPACE TELESCOPE;    ORBITAL MANEUVERS;    VELOCITY (DELTA V);    ORBITAL VELOCITY;    ORBIT PERTURBATION;    OBSERVATORIES;    MISSION PLANNING;    CONTINGENCY;    SUNSHADE;    LIBRATION;    RADIATION PRESSURE;    SOLAR RADIATION;   

RP-ID  :  AAS 19-816,GSFC-E-DAA-TN71232

学科分类：天文学(综合)

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

This investigation details two analyses performed as part of an early orbit contingency operations study related to the James Webb Space Telescope’s limited ability to maneuver in a sunward direction. First, contingency planning developed by the Flight Dynamics Team and shared with the Science and Operations Center to quickly assess the available timeline in the event of a delayed mid-course correction maneuver is presented. Second, the methods for recovering from a maneuver over-burn using observatory geometry to exploit the solar radiation pressure perturbation contributions from the large sunshield as well as adjusting the maneuver campaign to recover the observatory are examined.