Contact||Dipl.-Ing. Frank Baumann
Distributed satellite systems like
mega-constellations, formation flying or swarms enable
novel applications, but they are only economical when
using highly miniaturized but still high-capacity
spacecrafts. Miniaturization is achieved by
multifunction component assembly, the utilization of
commercial off-the-shelf parts as well as the
implementation of power supply and communication
Essential functions of a distributed system are the communication and the relative navigation among the satellites. At TU Berlin a picosatellite swarm mission is developed consisting of the four quarter-unit CubeSats BEESAT-5 to BEESAT-8 with a mass of 375 grams each. The picosatellites were designed fully redundant and almost complete single-fault tolerant.
The primary mission objective is to demonstrate a newly developed communications subsystem in the UHF band and an experimental GNSS receiver. Furthermore, the satellites contain a multifunction optical attitude determination sensor and are equipped with corner cube reflectors on all sides for laser ranging from ground.
The satellites will be launched into a sun-synchronous orbit in 2020. The flight results and the verified components will be used for future nanosatellite formation and swarm missions of TU Berlin. The identical flight spare models BEESAT-10 to BEESAT-13 were launched in advance on 2019-07-05 with Soyuz-Fregat free of charge by EXOLAUNCH GmbH.
- Baumann, F.; Korn, N.; Pirschel, K.; Wolf, R.; Brieß, K. (2017). A Picosatellite Swarm for Technology Demonstration (IAC-17-B4.6B.7). 68th International Astronautical Congress (IAC), Adelaide (Australia), 25–29 September.
- Korn, N.; Baumann, F.; Wolf, R.; Brieß, K. (2017). Multifunctional Optical Attitude Determination Sensor for Picosatellites (IAC-17-C1.1.9). 68th International Astronautical Congress (IAC), Adelaide (Australia), 25–29 September.