International experiments on development of VLBI radar method for research of near-earth bodies

1Molotov, IE, 2Volvach, AE, 3Konovalenko, AA, 3Falkovich, IS, 4Lytvynenko, LM, 5Negoda, AA, 6Fedorov, OP, 7Lipatov, BN, 8Gorshenkov, Yu.N, 9Agapov, VM, 10Tuccari, G, 11Liu, X
1Main Astronomical Observatory of the Russian Academy of Sciences, St. Petersburg, Russia
2Laboratory of Radio Astronomy, SRI Crimean Astrophysical Observatory, Katsiveli, AR Crimea, Ukraine
3Institute of Radio Astronomy of the National Academy of Science of Ukraine, Kharkiv, Ukraine
4Institute of Radio Astronomy of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine
5State Space Agency of Ukraine, Kyiv, Ukraine
6Space Research Institute of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Kyiv, Ukraine
7Scientific-Research Institute of Radio Astronomy, Nizhny Novgorod, Russia
8Special Design Bureau of the Moscow Power Engineering Institute, Moscow, Russia
9Keldysh Institute of Applied Mathematics of the Russian AS, Moscow, Russia
10Institute for Radio Astronomy, Noto, Italy
11Astronomical Observatory, Urumqi, China
Kosm. nauka tehnol. 2004, 10 ;(2-3):087-092
Section: Space Environment Monitoring and Space Debris
Publication Language: Russian
Six VLBI radar experiments on the research of Earth group planets, near-Earth asteroids and space debris objects were performed during 1999-2003 with the help of the Evpatoria RT-70 planetary radar (Ukraine) and with the participation of the receiving antennas Bear Lakes RT-64 (Russia), Noto RT-32 (Italy), Torun RT-32 (Poland), Shanghai RT-25 (China), Urumqi RT-25 (China), Simeiz RT-22 (Ukraine) et al. Combination of radar and VLBI methods allowed us to obtain a new scientific instrument for the measurements of short-periodic variations of planet proper rotations and for the determination of solar system body orbits in the Radio Reference Frame. Echo-signals from 25 space debris objects at geostationary, high-elliptical and half-day orbits as well as from Venus and Mars were detected. Precise Doppler shift, main period of rotation and size estimations were derived for some objects.
Keywords: near-earth bodies, receiving antennas, VLBI radar
1. Alekseev V. A., Antipenko A. A., Lipatov B. N., et al. Long-base narrowband radio interferometry for space navigation. 1. interplanetary spacecraft; coordinate measuring AIS "Vega" [Dlinnobazovaja uzkopolosnaja radiointerferometrija dlja kosmicheskoj navigacii. 1. Mezhplanetnye apparaty; izmerenija koordinat AMS «Vega»]. Kosmich. issled., 27, 447—453 (1989) [In Russian].
2. Konovalenko A. A., Falkovich I. N., Lipatov B. N., et al. Some results of international observations of high-orbit space debris on July 23-29, 2003. In: Near-Earth Astronomy 2003: Sb. tr., Vol. 2, 198—205 (St. Petersburg, 2003) [In Russian].
3. Molotov I. E., Abrosimov V. M., Agapov V. M., et al. Studies of the dynamics of the terrestrial planets, asteroi¬dov near-Earth and space debris by VLBI location [Issledovanija dinamiki planet zemnoj gruppy, asteroidov, sblizhajushhihsja s Zemlej, i kosmicheskogo musora metodom RSDB-lokacii]. Vserossijskaja astron. konf.: Tez. zajav. dokl., P. 128 (NIIH SPbGU, St. Petersburg, 2001) [In Russian].
4. Molotov I., Kovalenko A., Samodurov V., et al. International Low-Frequency Very-Long-Baseline Interferometry Network Project Milestones. Astron. and Astrophys. Transactions, 22 (4-5), 743—752 (2003).

5. Tuccari G., Molotov I., Buttaccio S., et al. Radar VLBI activity with participation of Noto. Proc. of the 6th European VLBI Network Symp., Eds E. Ros, R. W. Porcas, A. P. Lobanov, J. A. Zensus, 45—47 (Bonn, 2002).