Abstract
An analysis of the existing astrometric and radar observations of the Apophis asteroid is performed. On the basis of this analysis, characteristics of future measurements of the asteroid orbit and limitation on their conduction are accepted. A proposed launching of a spacecraft to the asteroid in order to obtain high-accuracy measurements of its distance and radial velocity is also considered. Trajectories of the flight to the asteroid in 2012–2022 are studied. Estimates of the accuracy of the Apophis position determination at various sets of both available and planned measurements at various numbers of determined parameters are obtained. The method of estimating accuracy is similar to that used in [1] for the Vega project.
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Bakhshiyan, B.Ts., Sukhanov, A.A., and El’yasberg, P.E., A Priori Accuracy of Predicting the Position of Comet Halley using Ground-Based and Onboard Measurements, Kosm. Issled., 1985, vol. 23, no. 5, pp. 876–885. [Cosmic Research, p. 683].
Giorgini, J.D., Benner, L.A.M., Ostro, S.J., et al., Predicting the Earth Encounters of (99942) Apophis, Icarus, 2008, vol. 193, pp. 1–19.
NEODyS (Near Earth Objects-Dynamic Site), http://newton.dm.unipi.it/~neodys/mpcobs/99942.rwo.
Arecibo Observatory (Redirected from Arecibo radio telescope), http://www.allaboutall.info/article/Arecibo-radio-telescope.
Rao, C.R., Linear Statistical Inference and Its Applications, New York: Wiley, 1965. Translated under the title Lineinye statisticheskiye metody, Moscow: Nauka, 1968.
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Original Russian Text © B.Ts. Bakhshiyan, A.A. Sukhanov, K.S. Fedyaev, 2010, published in Kosmicheskie Issledovaniya, 2010, Vol. 48, No. 5, pp. 427–432.
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Bakhshiyan, B.T., Sukhanov, A.A. & Fedyaev, K.S. Estimation of the determination accuracy of orbit parameters of the apophis asteroid from measurement results. Cosmic Res 48, 417–423 (2010). https://doi.org/10.1134/S0010952510050072
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DOI: https://doi.org/10.1134/S0010952510050072