Citation
Abstract
The benefits of improved radiometric tracking data have been studied for planetary approach within the inner Solar System using the Mars Rover Sample Return trajectory as a model, It was found that the benefit of improved data to approach and encounter navigation was highly dependent on the a priori uncertainties assumed for several nonestimated parameters, including those for frame-tie, Earth orientation, troposphere delay, and station locations, With these errors at their current levels, navigational performance was found to be insensitive to enhancements in data accuracy. However, when expected improvements in these errors are modeled, performance with current-accuracy data Significantly improves, with substantial further improvements possible with enhancements in data accuracy.
Details
- Volume
- 42-97
- Published
- May 15, 1989
- Pages
- 21–46
- File Size
- 1.1 MB