Orion Exploration Flight Test-1 Post-Flight Navigation Performance Assessment Relative to the Best Estimated Trajectory
Orion Exploration Flight Test-1 Post-Flight Navigation Performance Assessment Relative to the Best Estimated Trajectory
- New search for: R. S. Gay
- New search for: G. N. Holt
- New search for: R. Zanetti
- New search for: R. S. Gay
- New search for: G. N. Holt
- New search for: R. Zanetti
This paper details the post-flight navigation performance assessment of the Orion Exploration Flight Test-1 (EFT-1). Results of each flight phase are presented: Ground Align, Ascent, Orbit, and Entry Descent and Landing. This study examines the on-board Kalman Filter uncertainty along with state deviations relative to the Best Estimated Trajectory (BET). Overall the results show that the Orion Navigation System performed as well or better than expected. Specifically, the Global Positioning System (GPS) measurement availability was significantly better than anticipated at high altitudes. In addition, attitude estimation via processing GPS measurements along with Inertial Measurement Unit (IMU) data performed very well and maintained good attitude throughout the mission.
Document information
Orion Exploration Flight Test-1 Post-Flight Navigation Performance Assessment Relative to the Best Estimated Trajectory
2016
13 pages
Report
No indication
English
Space Technology , Unmanned Spacecraft , Manned Spacecraft , Crew exploration vehicle , Space navigation , Global positioning system , Inertial platforms , Altimeters , Spacecraft trajectories , Estimates , Kalman filters , Fault tolerance , Spacecraft performance , Flight tests , Postflight analysis