Application of the VLBI method in experiment on radar of asteroid 2012 DA14 in 2013
UDC
520.274Abstract
Capabilities of the Very Long Baseline Interferometry (VLBI) method are examined in reference to the problem of asteroid radar observations in the near-Earth space for the purpose of refining their trajectories. Basic features of the VLBI-radar method are analyzed on the example of the experimental observation of the asteroid 2012 DA14, carried out in February 2013. The asteroid was irradiated by the 5010.024 MHz frequency signal (radar RT-70, Evpatoria, Ukraine), whereas the echo signals were received by the radio telescopes RT-32 in Irbene (Ventspils, Latvia) and Medicina (Italy) in VLBI regime. A series of observations was implemented for different distances between the Earth and the asteroid (from 30,000 km to 250,000 km). The reflected signals were successfully received by the both VLBI-stations. Processing of the recorded signals allowed of measuring the Doppler frequency and interference frequency in order to improve the calculation of the radial and angular velocity of the asteroid.
Keywords:
very long baseline interferometry, radar, asteroid 2012 DA14Acknowledgement
References
- Нечаева М.Б., Дугин Н.А., Шмелд И.К. Метод РСДБ в приложении к задаче радиолокации объектов в околоземном космическом пространстве // Вестник Сибирского государственного аэрокосмического университета им. акад. М.Ф. Решетнева. 2011. Вып. 6 (39). С. 196-200.
- Molotov I., Nechaeva M., Falkovich I., Konovalenko A., Agapov V., Tuccari G., Pupillo G., Montebugnoli S., Kharlamov G., Benner L., Fateev V., Burtsev Y., Volvach A., Liu X., Oreshko V., Shmelds I., Bolli P., Dementiev A., Antipenko A., Dugin N., Jazykov V., Bezrukov D. Astrometry of the Solar System Bodies with VLBI Radar // ``Measuring the Future'', Proceedings of the Fifth IVS General Meeting, A. Finkelstein, D. Behrend (Eds.). StPb: Nauka, 2008. P. 30-36.
- Нечаева М.Б., Антипенко А.А., Дементьев А.Ф., Дугин Н.А., Снегирев С.Д., Тихомиров Ю.В. РСДБ-исследования в Научно-исследовательском радиофизическом институте // Изв. ВУЗов "Радиофизика", 2007. Т. 50, №7. C. 577-592.
- Nechaeva M., Antipenko A., Bezrukovs V., Bezrukov D., Dementjev A., Dugin N., Konovalenko A., Kulishenko V., Liu X., Nabatov A., Nesteruk V., Pupillo G., Reznichenko A., Salerno E., Shmeld I., Shulga O., Sybiryakova Y., Tikhomirov Yu., Tkachenko A., Volvach A., Yang W.-J. An Experiment on Radio Location of Objects in the Near-Earth Space with VLBI in 2012 // Baltic Astronomy. 2013. Vol. 22. No. 1. P. 35-41.
- Benner L. 2012 DA14 Goldstone Radar Observations Planning. 2013. http://echo.jpl.nasa.gov/asteroids/2012DA14/2012DA14_planning.html.
- Vierinen J. DA14 Flyby. 2013. http://kaira.sgo.fi/2013_02_01_archive.html.
- de León J., Ortiz J.L., Pinilla-Alonso N., Cabrera-Lavers A., Alvarez-Candal A., Morales N., Duffard R., Santos-Sanz P., Licandro J., Pérez-Romero A., Lorenzi V., Cikota S. Visible and near-infrared observations of asteroid 2012 DA14 during its closest approach of February 15, 2013 // Astronomy & Astrophysics, 2013. Vol. 555. Id. L2. 5 pp. DOI: 10.1051/0004-6361/201321373
- Gary Bruce L. Asteroid 2012 DA14 Rotation Light Curve // The Minor Planet Bulletin (ISSN 1052-8091). Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers. 2013. Vol. 40. No. 3. P. 122-124.
Downloads
Issue
Pages
Submitted
Published
How to Cite
Copyright (c) 2013 Nechaeva M.B., Antipenko A.A., Bezrukov V.V., Bezrukov D.A., Voytyuk V.V., Dementjev A.F., Dugin N.A., Jekabsons N., Klapers M., Konovalenko A.A., Kulishenko V.F., Nabatov A.S., Nesteruk V.N., Pupillo G., Reznichenko A.M., Salerno E., Tikhomirov Yu.V., Khutornoy R.V., Skirmante K., Shmeld I.
This work is licensed under a Creative Commons Attribution 4.0 International License.
