KalmanEstimatorBuilder doesn't allow to configure initial covariance for measurements
Initial covariance matrix for a Kalman filter is set up in
KalmanModel constructor according to the
covarianceMatricesProviders. In the constructor, provisions are made to consider both orbit drivers, propagation parameters drivers and measurements drivers. This constructor is called from
KalmanEstimator constructor which itself is called from
KalmanEstimatorBuilder does not allow to provide covariance matrix providers for measurements parameters. The only providers that it handles are the ones set up when calling
addPropagationConfiguration, there are no provisions to add other types of covariance matrices providers.