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Radar observations of Near-Earth Objects

Radar astronomy is one of the most effective techniques for determining the physical properties of near-Earth objects (NEOs). The size, shape, spin period and surface properties of NEOs can be obtained using radar observations. Radar observations require both transmitting and receiving antenna systems with highly sensitive equipment for recording echoes, as well as software for preparing observations and processing the data.

List of Observed Objects

Name Observation Dates Notes
Moon 2019 Apr 26 Earth satellite
2003 SD220 2018 Dec 17-22 Asteroid
2017 VR12 2018 Mar 05 Asteroid
3200 Phaethon 2017 Dec 15-18 Asteroid
3122 Florence 2017 Sep 04 Triple Asteroid
2003 BD44 2017 Apr 18-20 Asteroid
2014 JO25 2017 Apr 18-20 Asteroid
2003 YT1 2016 Oct 31 Binary Asteroid
2003 TL4 2016 Oct 29 Asteroid
2011 UW158 2015 Jul 18-19 Asteroid

The size distribution of NEOs observed on RT-32, depending on the distance to the Earth. The dashed line shows the distances to the Earth and the NEOs diameters with the echo Signal-to-Noise Ratio of 3 for the RT-32 radio telescope and a 400 kW radar with a gain of 74 dB for the corresponding round-trip signal propagation time. The calculations were performed for NEOs with a rotation period of 45 hours and a radar albedo of 0.1.

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Remarks

This website section is maintained by Dr. Yuri Bondarenko and Dr. Dmitrii Marshalov. This work was supported by the Russian Scientific Foundation grant No. 16-12-00071.