Double Star/Cluster observation of neutral sheet oscillations on 5 August 2004
- 1Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria
- 2Imperial College, London, UK
- 3St. Petersburg University, Russia
- 4Laboratory for Space Weather, Chinese Academy of Sciences, Beijing, China
- 5Institut für Geophysik und extraterrestrische Physik, Braunschweig, Germany
- 6Max-Planck Institut für extraterrestrische Physik, Garching, Germany
Abstract. Previous Cluster observations have shown that the flapping motions of the Earth's magnetotail are of internal origin and that kink-like waves are emitted from the central part of the tail and propagate toward the tail flanks. The newly launched Double Star Program (DSP) TC-1 satellite allows us to investigate neutral sheet at 10-13 Re in the tail. Using conjunctions with Cluster we will have simultaneous observations at 10-13 and 16-19 Re of these flapping motions. In this paper, we present the first results of neutral sheet oscillations observed by the Cluster and Double Star satellites on 5 August 2004.