AGADE - Applied Geomagnetics for Attitude Determination Experiment. The Applied Geomagnetics for Attitude Determination Experiment aims for analysing and comparing a set of different of-the-shelf small 3-axes magnetometer assemblies. These are going to be launched together with a high precession magnetometer. For further analysis time-dependant variations of earth's magnetic field will be registered on the ground. After the the flight, the resulting data will be used for evaluating advanced on-board attitude determination software for the future SOMP cubesat.   Team: Sebastian M. Ernst (Freiberg University of Mining and Technology, Germany) Martin Laabs (Dresden University of Technology, Germany) Stefan Golla (Brandenburg University of Technology, Germany) Hannes Weisbach (Dresden University of Technology, Germany) Stefan Oettel (Dresden University of Technology, Germany) Marian Hillemann (Dresden University of Applied Science, Germany) Erik Winkelmann (Dresden University of Applied Science, Germany) Georg Bauerfeind (Dresden University of Applied Science, Germany) NISSE - Nordic Ionospheric Sounding Rocket Seeding Experiment. In the NISSE experiment 19 kg of water will be released into the ionosphere at an altitude of about 95 km. Fifth of the water is expected to flash evaporate in the low pressure atmosphere immediately when released. The cooling of evaporation may first cause the rest of the water to turn into ice, which will sublimate in the order of seconds to minutes, depending on the crystal size. The vapour cools down while expanding into the surrounding space. The molecules may condensate to a cloud of tiny ice crystals due to the abrupt temperature drop caused by adiabatic cooling by expansion. Then the ice particles will re-evaporate back into a gaseous stage when reaching the temperature of the background atmosphere. The water molecules will be ionized by solar radiation and ion chemistry, modifying the ambient ion composition in the cloud.   The tristatic EISCAT UHF incoherent scatter radar system located in the Northern Scandinavia, in Tromsø, Norway, Kiruna, Sweden and Sodankylä, Finland will be used in the detection of the water release. The changes in the ion composition will cause local variations in the ionospheric plasma parameters, e.g. electron density variations, that can be measured by the UHF radar. The water release will be attempted to detect by the UHF radar to study its behaviour under prevailing lowthermospheric neutral wind and electric and magnetic field conditions. In addition, the effect of the release to the incoherent scatter spectrum will be investigated.   Besides the standard EISCAT data processing, the UHF raw data during the experiment is planned to be sampled in collaboration with the Sodankylä Geophysical Observatory, Finland, enabling sophisticated additional post-experiment analysis using statistical inversion methods.   Team: Vidar Hølland (University of Bergen, Norway) Gard Mellemstrand (NTNU, Norway) Timo Pitkänen (University of Oulu, Finland) Gisela Baumann (University of Helsinki, Finland)