Comparison DUT and UT/CSR Orbits for ERS-1
Global distribution of trends and cyclic behaviour
The next five plots show the values of the four parameters (mean, secular
trend, in-phase and quadrature annual cycle) fitted in each local time
series of orbital altitude differences between the DUT and UT/CSR orbit
solution. The fifth plot shows the remaining variance.
Mean (mean = 0.184 cm, rms = 2.683 cm)
Secular trend (mean = -0.043 cm/year, rms = 1.286
cm/year)
Annual amplitude (in-phase) (mean = 0.041 cm,
rms = 1.171 cm)
Annual amplitude (quadrature) (mean = 0.015 cm,
rms = 1.057 cm)
Residual (rms = 2.318 cm)
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More analyses on ERS-1
orbit stability
Questions or comments:
Remko Scharroo, remko.scharroo@lr.tudelft.nl.
22 January 1997.