Gravity waves in Jupiterʹs equatorial clouds observed by the Galileo orbiter

A reanalysis of Galileo images of Jupiterʹs Equatorial Zone obtained in 1999 and 2001 reveals the presence of trains of cloud bands, probably generated by gravity waves, similar to those seen in Voyager 1 and 2 (1979) and New Horizons (2007) images. No such waves have been found in a similar analysis of the Cassini flyby (2000) dataset. We present the properties of these waves and discuss them in the context of previously proposed models and observations.