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Mehta, Piyush M. (author), Paul, Smriti N. (author), Crisp, Nicholas H. (author), Sheridan, Philip L. (author), Siemes, C. (author), March, G. (author), Bruinsma, Sean (author)Satellite drag modeling remains the largest source of uncertainty affecting space operations in low Earth orbit. The uncertainty stems from inaccurate models for mass density and drag coefficient. Drag coefficient modeling also impacts scientific knowledge on the physics and dynamics of the upper atmosphere through the estimation of high...journal article 2022
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Gas-surface interactions modelling influence on satellite aerodynamics and thermosphere mass densityMarch, G. (author), van den IJssel, J.A.A. (author), Siemes, C. (author), Visser, P.N.A.M. (author), Doornbos, Eelco N. (author), Pilinski, Marcin (author)The satellite acceleration data from the CHAMP, GRACE, GOCE, and Swarm missions provide detailed information on the thermosphere density over the last two decades. Recent work on reducing errors in modelling the spacecraft geometry has greatly reduced scale differences between the thermosphere data sets from these missions. However, residual...journal article 2021