Covariance study to evaluate the influence of optical follow-up strategies on estimated orbital parameters

Cordelli, Emiliano; Vananti, Alessandro; Schildknecht, Thomas (2016). Covariance study to evaluate the influence of optical follow-up strategies on estimated orbital parameters. Acta astronautica, 122, pp. 76-89. Elsevier 10.1016/j.actaastro.2016.01.020

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An in-depth study, using simulations and covariance analysis, is performed to identify the optimal sequence of observations to obtain the most accurate orbit propagation. The accuracy of the results of an orbit determination/improvement process depends on:
tracklet length, number of observations, type of orbit, astrometric error, time interval between tracklets and observation geometry. The latter depends on the position of the object along its orbit and the location of the observing station. This covariance analysis aims to optimize the observation strategy taking into account the in fluence of the orbit shape, of the relative object-observer geometry and the interval between observations.

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