Aleksandr Zaitsev | |
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| Born | Aleksandr Leonidovich Zaitsev (1945-05-19)19 May 1945 |
| Died | 29 November 2021(2021-11-29) (aged 76) |
| Known for | the chief scientist at the Russian Academy of Science's Institute of Radio Engineering and Electronics the SETI League's Regional Coordinator for Russia |
| Scientific career | |
| Fields | Radar astronomy Messaging to Extra-Terrestrial Intelligence (METI) near-Earth asteroid radar research |
Aleksandr Leonidovich Zaitsev (Russian:Александр Леонидович Зайцев; 19 May 1945 – 29 November 2021) was a Russian andSoviet radio engineer and astronomer fromFryazino.[1][2][3] He worked onradar astronomy devices,near-Earth asteroidradar research, andSETI.
Zaitsev received his M.Sc. degree inradio engineering from theMoscow Mining University in 1967 and his Ph.D. (1981) and his postdoctoral lecture qualification (1997) inradar astronomy from the Institute of Radio Engineering and Electronics,Russian Academy of Science inMoscow. He was a member of theSpace Guard Foundation, theSETI League, andThe European Radio Astronomy Club (E.R.A.C.).[4]
Zaitsev was the chief scientist at theRussian Academy of Science's Institute ofRadio Engineering andElectronics. He headed the group transmitting Team Encounter'sinterstellar messages[5] using theYevpatoria (Evpatoria) Deep Space Center (EDSC).[6] Zaitsev was also serving as theSETI League's Regional Coordinator for Russia.[7]
Zaitsev's career has focused on three main topics: the theory, the design and implementation ofradar devices used in the study ofVenus,Mars, andMercury;near-Earth asteroidradar research;[8] andinterstellar radio messaging,[9] his later field of research. He retired in 2013.[citation needed]
Zaitsev observed theasteroid4179 Toutatis[10][11] in December 1992 using the 70-mYevpatorian Planetary Radar inCrimea (Ukraine), as a soundingsignaltransmitter, and the 100-mradio telescope inEffelsberg, Germany, as a receiver of theasteroid'sradar echo.[citation needed]
In June 1995, Zaitsev was responsible for initiating the world's first intercontinentalradar astronomy experiment; the radar groups participating in this experiment were led bySteven Ostro atJPL, Zaitsev in Yevpatoria, andYasuhiro Koyama in Kashima,Japan. Ostro's group transmitted and received using theGoldstone site of theDeep Space Network, while Zaitsev received using the Yevpatoria site and Koyama's group received atKashima. The target asteroid,6489 Golevka, was later named for the participating observatories (GOL-EV-KA orGOLdstone-EVpatoria-KAshima). Zaitsev has also conducted work on usingradar to determine the composition ofasteroids and planetary bodies.[citation needed]
Zaitsev supervised thetransmission of the 1999 and 2003Cosmic Calls[12] from Yevpatoria PlanetaryRadar[13] (EPR).[14][15][16][10] Under his leadership, a youth group inMoscow composed and broadcast a 'Teen Age Message to ETI'. Zaitsev proposed three-section structure of interstellar radio messages, coined the acronymMETI (Messaging to Extra-Terrestrial Intelligence)[17][18] and the phrase 'SETI paradox',[19] which refers to an apparent "paradox" where two distant civilizations capable of interstellar communication will always remain silent unless one of them contacts the other first, resulting in a deadlock of silence. In 2005, in article "The Drake Equation: Adding a METI Factor" he suggested that a high technology is not enough for establishing contact with Aliens because appropriate behavior directed to practical realization of sending signals is necessary too.[citation needed][clarification needed]
In 2006–2011, Zaitsev was one of the contributors to the
Zaitsev died on 29 November 2021.[25]
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