From thin-air to flat-sat in 12 months: the Twentesat student project

TwenteSat aims to build a twin-satellite interferometer in space, a research satellite system in preparation of the OLFAR project. The project will be completely done by students that work on a voluntary basis. The target is to have a flat-sat of at least one of the satellites ready in a short timeframe, the reason for this is the wish to get relatively quick results as most students can’t work on the project for a long time, ideal would be 12 months A.K.A. 1 year of study. The first research on the project was done by September 2013 and most of the recruiting and acquiring finances still has to be done at this point in time. As a result of this the student team will face several problems. They have to adapt to working with a quickly changing group as the Twentesat student project experiences a generally high workforce turnover, and they need speedy access to money while still being highly unknown to the outside world. This paper analyses the group’s activities and future plans on how to achieve their goal of quickly building a flat-sat. As it is not possible to trust on the fact that students will stay involved for a long time projects will have to be divided in small tasks that students can start on quickly, won’t take too long, and can be done independently from other tasks. This will help future educational student projects to launch more successfully and with less problems

Perceived value of student participation in the field of aerospace engineering from a student's perspective

The importance of student participation in space projects is well known. New students are needed to supplement the future workforce and both experience and enthusiasm are important factors to join any industry. Students can also offer fresh perspectives to existing problems in any field of engineering. It is also argued that it is very beneficial for the students themselves. This paper will clarify the point of view from students on student participation in aerospace engineering for their own interests, both personal and professional, as well as their general opinion on space research and development. Qualitative interviews were held with several groups of (former) students: Students not (yet) engaged in a large project; Students in the concept stage of a large project and students at the end stages of a large project. Both engineering and non-engineering students are of interest for this research. A broad range of questions is asked to the participants as this is mostly explorative research. The aim of this paper is to increase student participation by means of a better understanding of student expectations and experiences. Projects better suited to student needs could be developed in the future. With this better understanding and improved projects, more student projects could be successfully launched by both universities and corporations. This should benefit both educational and corporate interests in active student involvement as more research will be done by the students and more students will be engaged and motivated in the space industry. Due to the nature of qualitative interviews students will come with ideas on how to increase student participation and make student projects more successful, so we can relay these to educational institutions and companies

Inter-satellite communication link for a space based interferometer

Radio astronomy has been moving towards lower frequencies in recent years. This trend started with Earth bound large arrays like the low frequency array called LOFAR. After that an initiative to measure even lower frequencies started like the Orbiting Low Frequency Array (OLFAR) in space using a swarm of nano-satellites. Inspired by these initiatives, the goal of the TwenteSat student project is to create a space based interferometer using two tethered nanosatellites. A crucial part of this project is the inter satellite communication which allows data to be shared and control signals to be send between the separated satellites. The possibility of wired communication is examined, as well as wireless communication. In this paper a simple low power wireless communication system is proposed, with the use of commercial off the shelf (COTS) parts