Mission Design for the CubeSat OUFTI-1
Mission Design for the CubeSat OUFTI-1
Mission Design for the CubeSat OUFTI-1
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CHAPTER 5Figure 5.22: Argument of perigee variation over a yearThe Matlab results fit almost perfectly to those of STK: <strong>the</strong> small differenceprobably comes from <strong>the</strong> fact that <strong>the</strong> density model of STK is more accuratethan <strong>the</strong> one developed <strong>for</strong> <strong>the</strong> Matlab routine.As <strong>the</strong> apogee altitude strongly decreases, we would like to know when <strong>OUFTI</strong>-1will definitely enter <strong>the</strong> atmosphere ending its life. In order to study <strong>the</strong> end oflife, we have used <strong>the</strong> software STK: it estimate a lifetime of 4.2 years or 22915orbits. The evolution of <strong>the</strong> altitude of perigee and apogee are represented infigure 5.23Figure 5.23: Evolution of perigee and apogee altitude until <strong>the</strong> end of life <strong>for</strong><strong>the</strong> elliptic orbitGalli Stefania 48 University of Liège
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