Analysis of Astrometry and Photometry Observations of Asteroids at the RTT150

Anatoliy Ivantsov (1) , R. Gumerov (2) , I. Khamitov (3) , Z. Aslan (4) , William Thuillot (5) , G. I. Pinigin (1) , Daniel Hestroffer (5) , Serge Mouret (6)

1 Nikolaev Astronomical Observatory, Mykolaiv, Ukraine
2 Kazan State University
3 TÜBITAK National Observatory
4 ITÜ - Istanbul Technical University
5 IMCCE - Institut de Mécanique Céleste et de Calcul des Ephémérides
6 Technische Universität Dresden

The space astrometric mission Gaia, a cornerstone of the European Space Agency, will be launched in 2012 with the objective to make a 3D precise map of our Galaxy. The Gaia will furnish positions, distances and motions of a billion stars with unprecedented precision. Beside stars, the Gaia will observe asteroids with unprecedented precision from 0.5 to 3 mas, allowing the extremely fine orbit determinations (Tanga et al., 2008). This precision has great significance for the determination of small effects influencing the dynamics (relativistic, gravitational, non-gravitational, etc.) of Solar system bodies. The determination of masses of a hundred asteroids with a relative precision better than 50% is expected in 5 years of Gaia operation (Mouret et al, 2007).

Domaines: Astrophysique [astro-ph]

Anatoliy Ivantsov, R. Gumerov, I. Khamitov, Z. Aslan, William Thuillot, et al.. Analysis of Astrometry and Photometry Observations of Asteroids at the RTT150. Gaia follow-up network for the solar system objects : Gaia FUN-SSO workshop proceedings, Nov 2010, IMCCE -Paris Observatory, France. pp.93-96. ⟨hal-03743234⟩