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Comparison between the mean density ratios (μ*) between the NRLMSISE-00 model (top) and DTM-2013 (below) with different data sets for the CHAMP, GRACE, GOCE, and Swarm satellites. The percentage values indicate the maximum variability range among the satellites. Note that for GRACE and Swarm B the new density ratios are computed using a preliminary energy accommodation coefficient of 0.85 (which is not validated as for the other satellites).
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