Satellite operating system

To operate a satellite in orbit the mentioned radio hardware is not sufficient. An additional ground control operating system is needed, which receives, controls and encodes the commands for the satellite, as well as decoding and interpreting the satellites' telemetry. This is done in a new way compared to other universities. The IRS uses the satellite operation system SCOS-2000, which was developed by ESA and is used by industry. In combination with the CCSDS - radio protocol and the ESA Packet Utilisation Standard (PUS) the IRS missions are succeeding the common european satellite industry standard. The trained students receive an unprecedented insight into the software, structures and problems which they will encounter in their working life. This will give them an advantage compared to other universities.  

To automate the satellite control the software MOIS, developed by Rhea System is used. This software makes it possible to run predefined procedures automaticaly to control SCOS-2000.

To rehearse the operation of the satellites and to functionally test the hardware and software of the ground station at an early stage, the EADS-Astrium developed simulator, which is also used for system simulation, will be used. Therewith the operational procedures can be verified and with the assistance of a relay satellite the transmission path can be tested before the launch of the satellites.

Another tool to improve the satellite operation was developed at the institute for 3D visualization of the satellite in orbit. It is based on the open source software Celestia, in which a 3D model of the satellite is loaded into. During operation received telemetry data e.g. attitude information can be visualized easily to get a direct impression of the current attitude of the satellite. Another planned feature is to overlay the current field of view of the cameras as well as the subsequent processing of telemetry data.