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Sensitivity of GPS and GLONASS orbits with respect to resonant geopotential parameters

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Academic year: 2021

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Table 1 summarizes the most important resonant parameters causing significant drift rates for the  semi-major axis of the GPS satellite orbits
Table 1. Geopotential para- para-meters causing the largest  re-sonance effects for GPS orbits with eccentricity e=0.006 (maximum drift rates in the semi-major axis a) and the  cor-responding periods and  ampli-tudes of the distortions of the semi-major axi
Figure 2 shows also the formal errors of the geopo- geopo-tential parameters derived by a 7-day arc if no radiation pressure parameters are estimated
Figure 3 illustrates the correlation coefficients for GPS satellite 4 (left) and GLONASS satellite 1 (right), based on a 1-day arc (day 121, 2000)
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