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ONE YEAR OF BEESAT-4 OPERATION: LONG-TERM ANALYSIS OF HOUSEKEEPINGS, GPS AND ATTITUDE CONTROL DATA

机译:一年的Beesat-4操作:家务管理,GPS和姿态控制数据的长期分析

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The picosatelfite BEESAT-4 was launched together with the microsatellite BIROS from DLR on the 22nd of June 2016. The CubeSat was deployed by BIROS on the 9~(th) of September 2016 and both satellites fly in formation since then. During the first months of operations, several long term observations were conducted. These observations mainly focused on the energy budget, regarding the cycles of the batteries and the temperatures of all subsystems. Furthermore, the thermal simulation could be verified for the different satellite modes. The GPS receiver is the primary payload of BEESAT-4 and precise position and orbit determination is one of the main objectives of the mission. For GPS operations a three axes stabilized satellite is required. Several modes, like target pointing, zenith pointing, earth pointing and inertial pointing mode were implemented. The power system sets time limits for long term attitude control experiments. The zenith pointing mode turns the GPS antenna towards zenith and is required for GPS operations. Additionally, an Inter Satellite Link to BIROS was established, using UHF transceivers on both satellites. This way BIROS was able to command BEESAT-4.
机译:PicoSatelfite Beesat-4与来自2016年6月22日的DLR的微卫星Biros一起发布。秘书处由Biros部署于2016年9月9日〜(Th),此后卫星在此后均为卫星飞行。在运营的第一个月,进行了几个长期的观察。这些观察结果主要集中在能源预算上,关于电池的周期和所有子系统的温度。此外,可以为不同的卫星模式验证热仿真。 GPS接收器是Beesat-4的主要有效载荷,精确的位置和轨道确定是使命的主要目标之一。对于GPS操作,需要三轴稳定卫星。实现了几种模式,如目标指向,Zenith指向,地球指向和惯性指向模式。电力系统设定长期姿态控制实验的时间限制。 Zenith指向模式将GPS天线转向Zenith,并且需要GPS操作。此外,在两颗卫星上使用UHF收发器建立了与双核糖磺斯的间卫星链接。这种方式Biros能够命令Beesat-4。

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