Elena V. Pitjeva
Encyclopedia
Elena Vladimirovna Pitjeva is a Russian
Russians
The Russian people are an East Slavic ethnic group native to Russia, speaking the Russian language and primarily living in Russia and neighboring countries....

 astronomer
Astronomer
An astronomer is a scientist who studies celestial bodies such as planets, stars and galaxies.Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using...

 working at the Institute of Applied Astronomy, Russian Academy of Sciences
Russian Academy of Sciences
The Russian Academy of Sciences consists of the national academy of Russia and a network of scientific research institutes from across the Russian Federation as well as auxiliary scientific and social units like libraries, publishers and hospitals....

, St. Petersburg. She has published over 100 articles, as listed in Google Scholar
Google Scholar
Google Scholar is a freely accessible web search engine that indexes the full text of scholarly literature across an array of publishing formats and disciplines. Released in beta in November 2004, the Google Scholar index includes most peer-reviewed online journals of Europe and America's largest...

 and the Astrophysics Data System
Astrophysics Data System
The Astrophysics Data System , developed by the National Aeronautics and Space Administration , is an online database of over eight million astronomy and physics papers from both peer reviewed and non-peer reviewed sources...

 in the field of solar system dynamics and celestial mechanics
Celestial mechanics
Celestial mechanics is the branch of astronomy that deals with the motions of celestial objects. The field applies principles of physics, historically classical mechanics, to astronomical objects such as stars and planets to produce ephemeris data. Orbital mechanics is a subfield which focuses on...


.
She began employment activity as an engineer-observer at the Astrophysical observation station of the Astronomical Observatory of Leningrad State University
Saint Petersburg State University
Saint Petersburg State University is a Russian federal state-owned higher education institution based in Saint Petersburg and one of the oldest and largest universities in Russia....

 in Byurakan
Byurakan
Byurakan is a town in the Aragatsotn Province of Armenia on the slope of Mount Aragats. The town contains the basilica of Saint Hovhannes of the 10th c. and Artavazik Church of the 7th c. with a huge 13th c. khachkar monument directly across the ravine. It is also the site of the Byurakan...

 (Armenia). Then Pitjeva worked at the Institute of Theoretical Astronomy of the USSA Academy of Science and the Institute Applied Astronomy RAS since the date of its foundation in 1988 as researcher and senior researcher. At present she is head of the Laboratory of Ephemeris Astronomy of this institute.
Major research interests of Dr. Pitjeva include construction of numerical ephemerides of planets, determination of the planets and asteroids masses, the parameters of planet rotation and planetary topography, the solar corona and oblateness, general relativity
General relativity
General relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics...

 testing. She is one of creators of numerical Ephemerides of Planets and the Moon (EPM) of IAA RAS that originated in the seventies of the past century and have been developed since that time. The version of the EPM2004 ephemeris has been adopted as the ephemeris basis of Russian Astronomical Yearbook since 2006. The updated EPM2008 ephemerides are available to outside users via ftp.
The works of Pitjeva have recently been used by several scientists to put on the test several models of modified gravity in the Solar System.
Dr. Pitjeva has also contributed to a better understanding an influence of asteroids and Trans-Neptunian Objects on the planet motion. Recently Dr. Pitjeva collaborated with Dr. Standish proposed to IAU Working Group on Numerical Standards for Fundamental Astronomy (NSFA) the values of the masses of the three largest asteroids, the Moon-Earth mass ratio and the astronomical unit in meters, mainly obtained while fitting the constructed DE (JPL) and EPM (IAA RAS) planet ephemerides. These values have been adopted by the 27 General Assembly of International Astronomical Union
International Astronomical Union
The International Astronomical Union IAU is a collection of professional astronomers, at the Ph.D. level and beyond, active in professional research and education in astronomy...

 as Current Best Estimates as the IAU (2009) System of Astronomical Constants.
Pitjeva is a member of the International Astronomical Union
International Astronomical Union
The International Astronomical Union IAU is a collection of professional astronomers, at the Ph.D. level and beyond, active in professional research and education in astronomy...

: OC of Commission 4 “Ephemerides”,
Commission 52 “Relativity in Fundamental Astronomy”
IAU WG NSFA.”,

Education and Academic degrees

Pitjeva graduated the Faculty of Mathematical and Mechanical at Leningrad State University
Saint Petersburg State University
Saint Petersburg State University is a Russian federal state-owned higher education institution based in Saint Petersburg and one of the oldest and largest universities in Russia....

 in 1972 in the specialty of astronomy
Astronomy
Astronomy is a natural science that deals with the study of celestial objects and phenomena that originate outside the atmosphere of Earth...

.Pitjeva gained his Ph.D.
Doctor of Philosophy
Doctor of Philosophy, abbreviated as Ph.D., PhD, D.Phil., or DPhil , in English-speaking countries, is a postgraduate academic degree awarded by universities...

 in the field of "Astrometry and Celestial Mechanics" in 1994 (thesis “Improvement of ephemerides of the major planets and determination of some astronomical constants by radar observations") and earned the Doctor of Science degree, the highest (after Ph.D.) scientific degree in Russia, (thesis "Construction of high-precision ephemerides of the major planets and determination of some astronomical constants") in 2005. Dr. Pitjeva is a disciple of Professor G.A. Krasinski
Georgij A. Krasinsky
Georgij A. Krasinsky was a Russian astronomer active at the Institute of Applied Astronomy, Russian Academy of Science, St Petersburg. He was notable for research on planetary motions and ephemeris....

 and Professor V.A. Brumberg
Victor A. Brumberg
Victor A. Brumberg is a theoretical physicist specializing in relativistic celestial mechanics and astrometry. He once worked as a chief-scientist at the Institute of Applied Astronomy, Russian Academy of Sciences, St. Petersburg. He is noted for his work on celestial mechanics and ephemerides...

.

Bibliometric information

According to the NASA ADS database, the h-index
H-index
The h-index is an index that attempts to measure both the productivity and impact of the published work of a scientist or scholar. The index is based on the set of the scientist's most cited papers and the number of citations that they have received in other publications...

of E.V. Pitjeva is 9, with a total number of citations (self-citations excluded) equal to 316.

External links

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