A framework to estimate local atmospheric densities with reduced drag‐coefficient biases
نویسندگان
چکیده
An accurate estimation of upper atmospheric densities is crucial for precise orbit determination (POD), prediction low Earth satellites, and scientific studies the Earth's atmosphere. But estimated using satellite tracking data are always uncertain up to drag-coefficient assumed in inversion method. This work develops a new framework simultaneously estimate density satellites with time-varying attitude. We do so by leveraging Fourier models, previously developed authors, physical models drag-coefficient. The method tested synthetic different geomagnetic activities, altitude levels, errors gas-surface interaction parameters. report an improvement 70% estimates simulations. Finally, POD from Spire used validation. around 29% obtained filter over NRLMSISE-00 49% JB2008 compared High Accuracy Satellite Drag Model densities.
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ژورنال
عنوان ژورنال: Space Weather-the International Journal of Research and Applications
سال: 2022
ISSN: ['1542-7390']
DOI: https://doi.org/10.1029/2021sw002972