Asteroid mass determinations with INPOP planetary ephemerides

Details Asteroid mass determinations with INPOP planetary ephemerides Asteroid mass determinations with INPOP planetary ephemerides

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1879f&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1879

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Scientific paper

Thanks to the Mars orbiter tracking data, the Mars orbit is known with an accuracy of few meters over more than 10 years. The main limitation of the modern planetary ephemerides are then the perturbations of the main-belt asteroids on the inner planet orbits. In the other hand, mass determinations of asteroids are now done during the construction of planetary ephemerides on a regular basis. Compared to the previous INPOP versions, the INPOP10a [3] 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 results obtained with INPOP10a related to asteroid mass determinations.

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