Sommaire - Contents -- 1 ère séance lundi 28 Mai, 9h.30-10h.45 -- R. M. L.Baker jr.:The elimination of spurious data in the process of preliminary and definitive orbit determination -- G. N.Doubochine:Sur le mouvement de translation-rotation des corps céles tes artificiels -- 2ème séance lundi 28 Mai, 10h.45-12h.00 -- P.Musen:On long range effects in the motion of artificial satellites.... 21 -- D.Brouwer:Analytical study of resonance caused by solar radiation pressure -- 3ème séance lundi 28 Mai, 14h.30-17h.45 -- A. M.Moltchanov:Sur l'évolution des systèmes planétaires -- S.Herrick:A Comparison of astronomical and ballistic traditions in orbit correction -- Y.Kozai: The potential of the earth derived from satellite motions -- Y. V.Batrakov: Perturbations in the motion of a satellite due to the second zonal harmonic of the Earth's potential -- 4ème séance mardi 29 Mai, matinée -- R. H.Merson:A Pegasus computer programme for the improvement of the orbital parameters of an earth-satellite -- M. J.Davies: The determination of the small changes in the orbital elements of an earth satellite due to air drag -- D. K.Kulikov:Integration of equations of celestial mechanics by Cowell's method with variable intervals -- L. G.Jacchia:The determination of atmospheric drag on artificial satellites -- 5ème séance mardi 29 Mai, après-midi -- W.Priester:Discussion of atmospheric heating sources based on the analysis of satellite drag data -- V. V.Beletsky:Some problems of motion of artificial satellites about the centre of mass -- M. L.Lidov:On the approximated analysis of the orbit evolution of artificial satellites -- S. P.Wyatt:The effect of terrestrial radiation pressure on satellite orbits -- G. C.McVittie:The general relativity "force" on a satellite -- 6ème séance mercredi 30 Mai, matinée -- A. S.Sochil?na:Determination of orbits based on visual and photographical observations -- W. M.Katjla:Satellite orbit analyses for geodetic purposes -- D. G.King-Hele:The contraction of satellite orbits under the action of air drag, allowing for the variation of scale height with altitude -- V. V.Beletsky:The libration of a satellite on an elliptic orbit -- 7 ème séance mercredi 30 Mai, après-mid -- V. N.Lebedevand B. N. Rumyantsev: Variation problem of transfer be tween two points in a central field -- R. J.Natjmann: Observed torques-producing forces acting satellites -- I.I.Shapiro:The prediction of satellite orbits -- N. N.Moisseyev:Sur certains problèmes mathématiques du mouvementrelatif des satellites.