Citation
Abstract
This report presents the results of a study of doppler data noise during solar conjunctions. During the first half of 1975, a sizeable data base of doppler data noise (estimates) for the Pioneer 10, Pioneer 11, and Helios 1 solar conjunctions was accumulated. To analyze these data, certain physical assumptions are made, leading to the development of a geometric parameter (“ISI”) which correlates strongly with doppler data noise under varying Sun-Earth-spacecraft geometries. Doppler noise models are then constructed from this parameter, resulting in the newfound ability to predict doppler data noise during solar conjunctions, and hence to additionally be in a position to validate doppler data acquired during solar conjunctions.
Details
- Volume
- 42-30
- Published
- December 15, 1975
- Pages
- 231–263
- File Size
- 2.0 MB