First results of measurements by Graz University in the Energy Budget Campaign

Wave propagation experiments are described. Faraday rotation and differential absorption were observed by rocket-borne receivers. For the available trajectories, riometer absorption at 37.5 MHz is given. Rocket-borne electrostatic probe measurements (60 to 150 km) are also considered. Electron density and ion density for the different altitudes are graphically depicted. A low energy electron spectrometer was used to establish spatial, angular, and energy distributions of charged particles in the energy range 0.3 to 75 keV. Balloon-borne measurements complement the findings.