Delta VLBI data performance in the Galileo spacecraft Earth flyby of December 1990
Abstract
The performance of the delta very long baseline interferometry (Delta VLBI) data type during the recent Earth flyby of the Galileo spacecraft is presented. First, the data are given significance by showing why the mission design requires an accurate flyby. Then, the data's performance is analyzed, including its operational features, as well as its accuracy. Finally, the effectiveness of these data in improving the accuracy of flyby is shown. Comparisons are made between the expected and actual performances of the data. The processing time, reliability, and accuracy of these data were very good, and a solid gain was made in the encounter accuracy.
- Publication:
-
The Telecommunications and Data Acquisition Report
- Pub Date:
- August 1991
- Bibcode:
- 1991tdar.nasa..335G
- Keywords:
-
- Computer Systems Performance;
- Data Processing;
- Deep Space Network;
- Flyby Missions;
- Galileo Spacecraft;
- Very Long Base Interferometry;
- Accuracy;
- Computer Programs;
- Mission Planning;
- Reliability;
- Run Time (Computers);
- Communications and Radar