Improved Orbit Gravity Error Covariance for Orbit Determination

What is it about?

In the near Earth environment the process noise term must not be neglected when performing orbit covariance propagation. For optimal results physics-based formulations of the process noise covariance are required. This work presents an improved algorithm for the computation of the orbit gravity error covariance due to potential field truncation and the uncertainty of the gravity field coefficients.

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