INPOP08, a 4-D planetary ephemeris: from asteroid and time-scale computations to ESA Mars Express and Venus Express contributions

By A. Fienga, Jacques Laskar, Trevor Morley, H. Manche, P. Kuchynka, C. L. Poncin-Lafitte, F. Budnik, Mickaël Gastineau, L. Somenzi. 2009

160 citations recorded by the source corpus.

The latest version of the planetary ephemerides developed at the Paris Observatory and at the Besancon Observatory is presented. INPOP08 is a 4-dimension ephemeris since it provides positions and velocities of planets and the relation between Terrestrial Time and Barycentric Dynamical Time. Investigations to improve the modeling of asteroids are described as well as the new sets of observations used for the fit of INPOP08. New observations provided by the European Space Agency deduced from the tracking of the Mars Express and Venus Express missions are presented as well as the normal point deduced from the Cassini mission. We show importance of these observations in the fit of INPOP08, especially in terms of Venus, Saturn and Earth-Moon barycenter orbits.

Subfields: Astronomy and Astrophysics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/556d719a9b9b9e712b1a92aee28b511fbc9ec1e2

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Citations in the corpus

The Planetary and Lunar Ephemerides DE430 and DE431 (2014, methodology): “The slope in the difference between TT–TDB for DE430 and TE405 seen in Figure 3 is similar to the results for the INPOP08 ephemeris [17].”
La2010: a new orbital solution for the long-term motion of the Earth (2011, methodology): “This process was first made for INPOP06, and then for INPOP08, when the final version of this latest ephemeris (Fienga et al. 2009) was finally made available.”
Density of asteroids (2012, background): “…Sun and the planets, the gravitational inﬂuence of several asteroids must be taken into account to properly describe the observed position of planets, satellites, and spacecrafts (see, Baer and Chesley, 2008; Baer et al., 2011; Fienga et al., 2008, 2009, 2010; Folkner et al., 2009, for details).”
Phenomenology of the Lense-Thirring effect in the solar system (2010, background): “At present, it is known with an uncertainty of about 10% (Fienga et al. 2009).”
Strong chaos induced by close encounters with Ceres and Vesta (2011, unknown): “In La2010 (Laskar et al. 2011), as in INPOP08 (Fienga et al. 2009), the five bodies (1) Ceres, (2) Pallas, (4) Vesta, (7) Iris, and (324) Bamberga were included and considered as the planets, with all gravitational interactions, while the numerical algorithm was being improved.”
Time scale controversy: Accurate orbital calibration of the early Paleogene (2012, methodology): “…the long-term ephemerides, the group of the Institut de Mécanique Céleste et de Calcul des Éphémérides (IMCCE) at Paris Observatory developed a new high precision planetary ephemeris called INPOP [Fienga et al., 2008, 2009, 2011] (Intégration Numérique Planétaire de l’Observatoire de Paris).”