![Ioannis Gkolias on Twitter: "The modeling of the coupled orbit and attitude evolution of solar sails is a hard challenge. @spacenarcis proposed methods on how to tackle this problem at the #AAS # Ioannis Gkolias on Twitter: "The modeling of the coupled orbit and attitude evolution of solar sails is a hard challenge. @spacenarcis proposed methods on how to tackle this problem at the #AAS #](https://pbs.twimg.com/media/DlNk5wHVAAAa3Ew.jpg)
Ioannis Gkolias on Twitter: "The modeling of the coupled orbit and attitude evolution of solar sails is a hard challenge. @spacenarcis proposed methods on how to tackle this problem at the #AAS #
![Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS) Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS)](https://www.researchgate.net/publication/332713203/figure/fig1/AS:961381050355746@1606222512887/The-120-year-orbital-evolution-of-an-equatorial-GEO-satellite_Q320.jpg)
Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS)
![Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS) Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS)](https://www.researchgate.net/profile/Ioannis-Gkolias/publication/332139232/figure/fig4/AS:745369273110530@1554721291714/The-eccentricity-evolution-of-two-inclined-geosynchronous-orbits-with-same-initial_Q320.jpg)
Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS)
![Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS) Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS)](https://www.researchgate.net/publication/332713203/figure/fig4/AS:961381054570527@1606222513538/In-the-left-panel-the-eccentricity-evolution-of-a-set-of-36-orbits-with-same-initial_Q320.jpg)
Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS)
![Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS) Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS)](https://www.researchgate.net/publication/332713203/figure/fig5/AS:961381054570532@1606222513711/The-eccentricity-evolution-of-two-inclined-geosynchronous-orbits-with-same-initial_Q320.jpg)
Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS)
![Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS) Ioannis GKOLIAS | Senior Researcher | Doctor of Philosophy | Aristotle University of Thessaloniki, Thessaloníki | AUTH | Division of Physics (PHYS)](https://www.researchgate.net/publication/353330385/figure/fig4/AS:1047122782715904@1626664934080/The-simplified-configuration-of-the-planar-2-ellipsoid-model_Q320.jpg)