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Regensburg 2007 – scientific programme

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EP: Fachverband Extraterrestrische Physik

EP 12: Grundlagenphysik

EP 12.2: Talk

Thursday, March 29, 2007, 12:00–12:15, H46

The flyby-anomaly — •Hansjörg Dittus and Claus Lämmerzahl — ZARM, Universität Bremen

During flybys at Earth satellites experience an unexplained increase in the velocitiy of a few mm/s. The corresponding data are presented. A very rough and preliminary interpretation gives the impression that the effect depends in a characteristic way on the eccentricity of the orbit of the satellite. A discussion of various possible errors shows that no convincing reason for the observed velocity increase can be found. Theoretical models which are able to describe the effect are however incompatible with the stability of bound satellite orbits; as a consequence, until now no convincing model for the observed phenomenon could be given.

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