Spider-2 is a small payload for investigation of disturbances in electrojet by rockets. The mission will be carried out in early winter 2020. The project is funded by Rymdstyrelsen (Swedish National Space Agency) within the Swedish national balloon and rocket program.

The payload will be launched in the January-February period into an active Aurora to study the auroral electrojet. 12 free-flying instruments will be deployed into the Aurora from the main payload. 8 of these use their residual spin after deployment to deploy 8 wire boom probes each and 4 are active falling spheres. All free-flyers are self-sufficient and will be recovered by helicopter for data extraction after landing with their own parachute system.

The main payload also has PLASMA physics instrumentations and will do reference measurements during the flight.

SSC is contracted for the mission and will provide:

• Project management
• Service systems
• System integration and testing
• Launch service (Euro Launch)
• Operations

P.I. is Ass. Prof. Nickolay Ivchenko, Department of Space and Plasma Physics at the Royal Institute of Technology (KTH).
Additional contributions from science teams from MISU (Department of Meteorology at Stockholm University), IRF (Swedish Institute of Space Physics) and IAP (Leibniz-Institute of Atmospheric Physics).

The free-flyers and their ejection system are developed by KTH.