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AAUSat-3
AAUSat-3 (Aalborg University CubeSat-3), is the third CubeSat built and operated by students from the Aalborg University in Denmark. It was launched on 25 February 2013 from the Satish Dhawan Space Centre in India on a Polar Satellite Launch Vehicle (PSLV) launch vehicle (PSLV-C20). AAUSat-3 carries two Automatic Identification System (AIS-1 and AIS-2) receivers as the main payload.
The primary purpose of satellite construction at University of Aalborg is to give the students engineering experience beyond what is normally achieved within a master's degree program. The design, implementation, and manufacturing were carried out by students, with only two exceptions: the manufacturing of the mechanical structure (carried out by the department workshop in alu7075), and the raw non-mounted PCBs. The project is funded mainly by Aalborg University and by Danish Maritime Safety Administration (DaMSA ), along with other sponsors.
The purpose of the satellite project was to find out if it was possible to receive Automatic Identification System (AIS) signals from a 1U CubeSat.
The spacecraft was designed to operate on a non-centralized basis so it would be able to continue functioning even when certain subsystems failed. It carried two automated identification system (AIS) receivers - one based on SDR principle. The images recorded by the satellite were later transmitted to the ground station located at Aalborg University, from which they were made accessible for the general public.
Student satellite activities at Aalborg University (AAU) started in 2003 as a result of AAU's involvement in the first pure Danish research satellite, Ørsted, which was successfully launched in 1999. AAUSat-3's predecessors were AAU CubeSat (launched in 2003), and AAUSat-2 (launched in 2008). Students from AAU also participated in SSETI Express (launched in 2005), a student satellite initiative by European Space Agency (ESA) Education. The construction of AAUSat-3 began in the fall of 2007.
The satellite prototype was tested on a stratospheric balloon flight in October 2009 as part the BEXUS (Balloon Experiments for University Students) program, which allows European students to test scientific experiments in high altitude conditions. The balloon test served as an excellent opportunity to test the AIS receivers with an extended field of view (FOV) and to acquire realistic samples for further development of the final payload receivers. The payload on BEXUS was called NAVIS (North Atlantic Vessel Identification System).
AAUSat-3 was launched on 25 February 2013 on PSLV-C20. Operations were a success. 9,000 AIS messages were received on a daily basis and downloaded to the mission control center (MCC), located in Aalborg, Denmark. All subsystems were tested and running. The first 100 days of operation were very successful. No degradation of the satellite was observed, all subsystems were working, and the primary payload – an AIS receiver – was working correctly.
Two critical situations occurred during the first 100 days:
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AAUSat-3 AI simulator
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AAUSat-3
AAUSat-3 (Aalborg University CubeSat-3), is the third CubeSat built and operated by students from the Aalborg University in Denmark. It was launched on 25 February 2013 from the Satish Dhawan Space Centre in India on a Polar Satellite Launch Vehicle (PSLV) launch vehicle (PSLV-C20). AAUSat-3 carries two Automatic Identification System (AIS-1 and AIS-2) receivers as the main payload.
The primary purpose of satellite construction at University of Aalborg is to give the students engineering experience beyond what is normally achieved within a master's degree program. The design, implementation, and manufacturing were carried out by students, with only two exceptions: the manufacturing of the mechanical structure (carried out by the department workshop in alu7075), and the raw non-mounted PCBs. The project is funded mainly by Aalborg University and by Danish Maritime Safety Administration (DaMSA ), along with other sponsors.
The purpose of the satellite project was to find out if it was possible to receive Automatic Identification System (AIS) signals from a 1U CubeSat.
The spacecraft was designed to operate on a non-centralized basis so it would be able to continue functioning even when certain subsystems failed. It carried two automated identification system (AIS) receivers - one based on SDR principle. The images recorded by the satellite were later transmitted to the ground station located at Aalborg University, from which they were made accessible for the general public.
Student satellite activities at Aalborg University (AAU) started in 2003 as a result of AAU's involvement in the first pure Danish research satellite, Ørsted, which was successfully launched in 1999. AAUSat-3's predecessors were AAU CubeSat (launched in 2003), and AAUSat-2 (launched in 2008). Students from AAU also participated in SSETI Express (launched in 2005), a student satellite initiative by European Space Agency (ESA) Education. The construction of AAUSat-3 began in the fall of 2007.
The satellite prototype was tested on a stratospheric balloon flight in October 2009 as part the BEXUS (Balloon Experiments for University Students) program, which allows European students to test scientific experiments in high altitude conditions. The balloon test served as an excellent opportunity to test the AIS receivers with an extended field of view (FOV) and to acquire realistic samples for further development of the final payload receivers. The payload on BEXUS was called NAVIS (North Atlantic Vessel Identification System).
AAUSat-3 was launched on 25 February 2013 on PSLV-C20. Operations were a success. 9,000 AIS messages were received on a daily basis and downloaded to the mission control center (MCC), located in Aalborg, Denmark. All subsystems were tested and running. The first 100 days of operation were very successful. No degradation of the satellite was observed, all subsystems were working, and the primary payload – an AIS receiver – was working correctly.
Two critical situations occurred during the first 100 days: