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Real-Time Thermospheric Density Estimation via Two-Line Element Data Assimilation
Inaccurate estimates of the thermospheric density are a major source of error in low Earth orbit prediction. Therefore, real-time density estimation is required to improve orbit prediction. In this work, we develop a dynamic reduced-order model for the thermospheric density that enables real-time density estimation using two-line element (TLE) data. For this, the global thermospheric density is represented by the main spatial modes of the atmosphere and a time-varying low-dimensional state and a linear ...
Gondelach, David; Linares, Richard;
Published by: Space Weather Published on: 01/2020
YEAR: 2020   DOI: 10.1029/2019SW002356
density estimation; reduced-order modeling; satellite drag; thermospheric density modeling; two-line element data