General method for assessing the geographically correlated error for an orbiter with applications to Topex
Abstract
An estimation based computational algorithm for evaluating geographically dependent orbit determination errors is presented. A derivation is included of the generalized geographically correlated error analysis algorithm and the algorithm is applied to a Topex simulation. Then a general numerical technique which provides the capability to analyze any type of mismodeled parameter with the geopotential as a special case is described. The numerical algorithm is compared with the analytic method of Rosborough (1986) and it is shown that both methods generate consistent geographically dependent orbit error profiles when the ephemeris error is dominated by the mismodeled geopotential.
- Publication:
-
Astrodynamics 1989
- Pub Date:
- 1990
- Bibcode:
- 1990asdy.conf..598W
- Keywords:
-
- Altimetry;
- Ephemeris Time;
- Instrument Errors;
- Ocean Surface;
- Topex;
- Algorithms;
- Computer Techniques;
- Error Analysis;
- Geophysical Satellites;
- Space Communications, Spacecraft Communications, Command and Tracking