DTUSat

DTUSat [DTU]

DTUSat (Danmarks Tekniske Universitet Satellite) is a picosatellite designed and built by students from the Technical University of Denmark, DTU. The main payload of DTUsat is an electrodynamic tether for dumping the satellite. The tether is deployed using a novel yo-yo system, greatly simplifying construction and deployment. A calibrated test transmitter is flown as secondary payload. The satellite is 3-axis stabilized using magnetorquers, while attitude determination is done by a combination of a 3-axis magnetometer and 5 chip scale dual-axis sun angle sensors designed and built for this satellite. The mass of each sun angle sensor including supporting electronics is only 3 g. All flight electronics is designed using modern 3.3V CMOS integrated circuits, lowering total power consumption to about 400 mW while providing about 10 MIPS for application software.

In order to structure and evaluate the success of the project, we have set 10 success criteria for DTUsat.

To learn something
To document the process
To promote engineering and science education
To receive data from the satellite in orbit
To uplink commands and upload software
To receive data on the chip scale sun sensors
To gain full 3-axis attitude control
To return pictures of the earth
To deploy the tether
To lower the satellite orbit using the tether.

Nation:	Denmark
Type / Application:	Technology, education
Operator:	Danmarks Tekniske Universitet
Contractors:	Danmarks Tekniske Universitet
Equipment:
Configuration:	CubeSat
Propulsion:	None
Lifetime:
Mass:	1 kg
Orbit:

Satellite	Date	LS		Launcher	Remarks:
DTUSat 1	30.06.2003	Pl LC-133		Rokot-KM	with MOST, MIMOSA, CanX 1, AAU-Cubesat, XI-IV, CUTE 1, QuakeSat, Monitor-Mockup
DTUSat 2

Source: DTU website