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VLBI Radar of the 2012 DA14 Asteroid

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An experiment on VLBI radar of the 2012 DA14 asteroid was carried out on February 15–16, 2011 at the time of its closest approach to the Earth. The research teams of Kharkov (Institute of Radio Astronomy of the National Academy of Sciences of Ukraine), Evpatoria (National Space Facilities Control and Test Center), Nizhny Novgorod (Radiophysical Research Institute), Bologna (Istituto di Radioastronomia (INAF)), and Ventspils (Ventspils International Radioastronomy Center) took part in the experiment. The asteroid was irradiated by the RT-70 planetary radar (Evpatoria) at a frequency of 5 GHz. The reflected signal was received using two 32-m radio telescopes in Medicina (Italy) and Irbene (Latvia) in radiointerferometric mode. The Doppler frequency shifts in bi-static radar mode and interference frequency in VLBI mode were measured. Accuracy of the VLBI radar method for determining the radial and angular velocities of the asteroid were estimated.

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Authors and Affiliations

  1. Radiophysical Research Institute, Nizhny Novgorod, Russia

    M. B. Nechaeva, N. A. Dugin, A. A. Antipenko, A. F. Dement’ev, S. D. Snegirev, Yu. V. Tikhomirov & A. K. Chagunin

  2. Engineering Research Institute “Ventspils International Radioastronomy Center” of the Ventspils Higher School, Ventspils, Latvia

    D. A. Bezrukov, V. V. Bezrukov, N. Jekabsons, M. Klapers, K. Skirmante & I. Shmeld

  3. National Space Facilities Control and Test Center, Evpatoria, Crimea

    V. V. Voytyuk, V. N. Nesteruk & R. V. Khutornoy

  4. Institute of Radio Astronomy of the National Academy of Sciences of Ukraine, Kharkov, Ukraine

    A. A. Konovalenko, V. F. Kulishenko, A. S. Nabatov & A. M. Reznichenko

  5. Istituto di Radioastronomia INAF, Bologna, Italy

    D. Putillo & E. Salerno

Authors
  1. M. B. Nechaeva
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  2. N. A. Dugin
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  3. A. A. Antipenko
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  4. D. A. Bezrukov
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  5. V. V. Bezrukov
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  6. V. V. Voytyuk
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  7. A. F. Dement’ev
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  8. N. Jekabsons
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  9. M. Klapers
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  10. A. A. Konovalenko
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  11. V. F. Kulishenko
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  12. A. S. Nabatov
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  13. V. N. Nesteruk
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  14. D. Putillo
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  15. A. M. Reznichenko
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  16. E. Salerno
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  17. S. D. Snegirev
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  18. Yu. V. Tikhomirov
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  19. R. V. Khutornoy
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  20. K. Skirmante
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  21. I. Shmeld
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  22. A. K. Chagunin
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Corresponding author

Correspondence to N. A. Dugin.

Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 57, No. 10, pp. 774–783, October 2014.

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Nechaeva, M.B., Dugin, N.A., Antipenko, A.A. et al. VLBI Radar of the 2012 DA14 Asteroid. Radiophys Quantum El 57, 691–699 (2015). https://doi.org/10.1007/s11141-015-9555-8

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  • DOI: https://doi.org/10.1007/s11141-015-9555-8

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