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Improving Accuracy of Fundamental Ephemerides of Planets (EPM)

Transactions of IAA RAS, issue 36, 41–48 (2016)

Keywords: construction of planetary ephemerides, optical and radio technical observations, accuracy of ephemerides

Abstract

The EPM ephemerides (Ephemerides of Planets and the Moon) were first created in the 1970s in support of Russian space flight missions and constantly improved at IAA RAS. The files containing polynomial approximation data for EPM ephemerides: EPM2004, EPM2008, EPM2011/m are available from ftp://quasar. ipa.nw.ru/incoming/EPM/. The EPM2014 version has been created by the renewed program complex ERA-8 (Ephemeris Research in Astronomy 8). The following factors influence the accuracy of planet ephemerides: comparability of the planet dynamical models with their motion in reality; quantity and quality of observations with the crucial role of spacecraft ranging and its growing accuracy; and mathematical reduction of observational data. Improvement of all these factors has given a possibility to increase the accuracy of planet ephemerides considerably, which is evident for all planets from a several-fold uncertainty reduction of their formal orbital elements. Especially it is notable for Venus, the Earth, Mars, Saturn and a well provided trajectory data for the spacecraft near these planets

Citation

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E. Pitjeva, D. Pavlov, V. Skripnichenko. Improving Accuracy of Fundamental Ephemerides of Planets (EPM) // Transactions of IAA RAS. — 2016. — Issue 36. — P. 41–48.

@article{pitjeva2016,
  abstract = {The EPM ephemerides (Ephemerides of Planets and the Moon) were first created in the 1970s in support of Russian space flight missions and constantly improved at IAA RAS. The files containing polynomial approximation data for EPM ephemerides: EPM2004, EPM2008, EPM2011/m are available from ftp://quasar. ipa.nw.ru/incoming/EPM/. The EPM2014 version has been created by the renewed program complex ERA-8 (Ephemeris Research in Astronomy 8). The following factors influence the accuracy of planet ephemerides: comparability of the planet dynamical models with their motion in reality; quantity and quality of observations with the crucial role of spacecraft ranging and its growing accuracy; and mathematical reduction of observational data. Improvement of all these factors has given a possibility to increase the accuracy of planet ephemerides considerably, which is evident for all planets from a several-fold uncertainty reduction of their formal orbital elements. Especially it is notable for Venus, the Earth, Mars, Saturn and a well provided trajectory data for the spacecraft near these planets},
  author = {E. Pitjeva and D. Pavlov and V. Skripnichenko},
  issue = {36},
  journal = {Transactions of IAA RAS},
  keyword = {construction of planetary ephemerides, optical and radio technical observations, accuracy of ephemerides},
  pages = {41--48},
  title = {Improving Accuracy of Fundamental Ephemerides of Planets (EPM)},
  url = {http://iaaras.ru/en/library/paper/1078/},
  year = {2016}
}

TY  - JOUR
TI  - Improving Accuracy of Fundamental Ephemerides of Planets (EPM)
AU  - Pitjeva, E.
AU  - Pavlov, D.
AU  - Skripnichenko, V.
PY  - 2016
T2  - Transactions of IAA RAS
IS  - 36
SP  - 41
AB  - The EPM ephemerides (Ephemerides of Planets and the Moon) were first
created in the 1970s in support of Russian space flight missions and
constantly improved at IAA RAS. The files containing polynomial
approximation data for EPM ephemerides: EPM2004, EPM2008, EPM2011/m
are available from ftp://quasar. ipa.nw.ru/incoming/EPM/. The EPM2014
version has been created by the renewed program complex ERA-8
(Ephemeris Research in Astronomy 8). The following factors influence
the accuracy of planet ephemerides: comparability of the planet
dynamical models with their motion in reality; quantity and quality
of observations with the crucial role of spacecraft ranging and its
growing accuracy; and mathematical reduction of observational data.
Improvement of all these factors has given a possibility to increase
the accuracy of planet ephemerides considerably, which is evident for
all planets from a several-fold uncertainty reduction of their formal
orbital elements. Especially it is notable for Venus, the Earth,
Mars, Saturn and a well provided trajectory data for the spacecraft
near these planets
UR  - http://iaaras.ru/en/library/paper/1078/
ER  -