Original Article

Celestial Mechanics and Dynamical Astronomy

, Volume 111, Issue 3, pp 363-385

First online:

The INPOP10a planetary ephemeris and its applications in fundamental physics

  • A. FiengaAffiliated withInstitut UTINAM-CNRS 6213 Email author 
  • , J. LaskarAffiliated withIMCCE-CNRS 8028
  • , P. KuchynkaAffiliated withIMCCE-CNRS 8028
  • , H. MancheAffiliated withIMCCE-CNRS 8028
  • , G. DesvignesAffiliated withLPCE-CNRS 6115
  • , M. GastineauAffiliated withIMCCE-CNRS 8028
  • , I. CognardAffiliated withLPCE-CNRS 6115
  • , G. TheureauAffiliated withLPCE-CNRS 6115

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Compared to the previous INPOP versions, the INPOP10a planetary and lunar ephemeris has several improvements. For the planets of our Solar System, no big change was brought in the dynamics but improvements were implemented in the fitting process, the data sets used in the fit and in the selection of fitted parameters. We report here the main characteristics of the planetary part of INPOP10a like the fit of the product of the solar mass with the gravitational constant (\({{\rm GM}_{\odot}}\)) instead of the astronomical unit. Determinations of PPN parameters as well as adjustments of the Sun J2 and of asteroid masses are also presented. New advances of nodes and perihelia of planets were also estimated and are given here. As for INPOP08, INPOP10a provides to the user, positions and velocities of the planets, the Moon, the rotation angles of the Earth and the Moon as well as TT-TDB Chebyshev polynomials at http://​www.​imcce.​fr/​inpop.


Planetary ephemerides Celestial Mechanics Fundamental physics Asteroid masses