Orbit determination accuracies attainable during a Mariner/Jupiter/Saturn encounter have been established by means of covariance analyses. Advanced earth-based multistation radiometric data, optical data consisting of star/satellite pictures provided by a narrow-angle TV camera on board the spacecraft, and batch sequential filtering methods were employed. An evaluation of sequential filter sensitivities to errors in modeling small nongravitational spacecraft accelerations is presented. Selected covariances developed in the orbit determination analysis are used in an investigation of the trajectory correction costs associated with a close Ganymede encounter. The 99 percentile Delta V contours in the Ganymede aiming plane are obtained for satellite encounters before or after Jupiter closed approach, and the sources of the dominant contributions to the Delta V costs are identified.
Mariner/Jupiter/Saturn navigation in the presence of massive planetary satellites
Astrodynamics Conference ; 1973 ; Vail, CO, US
1973-07-01
Conference paper
No indication
English
Mariner Jupiter/Saturn 1977 navigation strategy
NTRS | 1975
|Mariner Jupiter/Saturn 1977 navigation strategy
AIAA | 1975
|Mariner Jupiter/Saturn 1977 Navigation Strategy
AIAA | 1976
|Mariner Jupiter/Saturn Project
NTIS | 1973