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Context. Meridian transit circle observations of the planets and their satellites are regularly performed for ephemerides improvement. Some have been made in Bordeaux observatory during the period 1997-2007. Aims. This paper presents these observations and makes an analysis of the data in order to determine the accuracy of the observations, their interest for dynamical purpose and a comparison with the dynamical models of the observed objects. Methods. For the determination of the positions of the planets, the observations of their satellites have been used, providing pseudo observations of the planet. The method is tested. Results. The results show the interest of continuing this type of observations. Residuals show what ephemerides have to be improved using the present data.

An analysis of Bordeaux meridian transit circle observations of planets and satellites (1997–2007)