• Pätschke, Susann
• Klinkner, Sabine
• Müller, Robin
• Freese, Jens
• Zietz, Martin
• Fugmann, Martin
• Bötsch-Zavřel, Lena
• Löffler, Thorben
• Kranz, Markus
• Koller, Markus T.
• Starzmann, Dominik
• Meier, Jakob
• Manoliu, Laura
• Steinmetz, Fabian
• Schweigert, Robin
• Henneberger, Ralf
• Maier, Philipp
• Pahler, Andreas
• Haußmann, Simon
• Steinert, Michael
• Holeczek, Cedric
• Eggert, Marius
• Loidold, Lukas-Maximilian
• Tessmann, Axel
• Lengowski, Michael
• Schoch, Benjamin
• Mohr, Ulrich

Abstract

<jats:title>Abstract</jats:title><jats:p>The 6 Unit CubeSat EIVE was developed to to host a novel high-speed E-band transmitter payload. Challenging aspects for reliable and demanding satellite architectures were revealed during development and operations. Reliable communication buses such as CAN, RS485 or point-to-point links should be preferred over I2C or SPI. Experiences from the implementation of the individual subsystems are presented and lessons learned derived in this paper. The on-board data handling and communication system is based on a system-on-a-chip architecture and uses the CCSDS protocol via S-band. The FPGA section proved advantageous while the use of high-priority commands is essential for in-orbit debugging. The conservative approach to the design of the power system and the high effort to test the thermal design of the EIVE CubeSat led to a stable satellite regarding the power-budget and temperature ranges. The self-developed solar panels and their deployment mechanism worked as intended with many lessons learned in the process. A major part of the time spent on integration was on the harness. The attitude control system is based on self-developed components and commercially acquired units. With most of the attitude control components being tested and calibrated on a best effort basis, more resources should have been committed to testing the GNSS receivers and the star tracker on ground. A stable safe mode was achieved after multiple bugs fixes in the first weeks after the launch. Since then, steady progress towards nominal operation has been achieved.</jats:p>

Topics

• impedance spectroscopy