scholarly journals Effect of Air Drag Force on Low Earth Orbit Satellites During Maximum and Minimum Solar Activity

2016 ◽  
Vol 9 (1) ◽  
pp. 1-9 ◽  
Author(s):  
S.W. Samwel ◽  
Kh.I. Khalil
Keyword(s):  
Solar Activity ◽  
Drag Force ◽  
Low Earth Orbit ◽  
Earth Orbit ◽  
Air Drag ◽  
Minimum Solar Activity ◽  
Low Earth Orbit Satellites

The Effect of Atmospheric Drag Force on the Elements of Low Earth Orbital Satellites at Minimum Solar Activity

2021 ◽  
Vol 19 (9) ◽  
pp. 24-37
Author(s):  
Najlaa Ozaar Hasan ◽  
Wafaa Hasan Ali Zaki ◽  
Ahmed Kader Izzet
Keyword(s):  
Solar Activity ◽  
Low Earth Orbit ◽  
Atmospheric Drag ◽  
Size Parameter ◽  
Mass Ratio ◽  
Orbital Elements ◽  
Unperturbed Motion ◽  
Minimum Solar Activity ◽  
Low Earth Orbit Satellites ◽  
The Impact

Researching and modeling perturbations is essential in astrodynamics because it gives information on the deviations from the satellite's normal, idealized, or unperturbed motion. Examined the impact of non-conservative atmospheric drag and orbital elements of low-earth-orbit satellites under low solar activity. The study is consisting of parts, the first looks at the effects of atmospheric drag on LEO satellites different area to mass ratios, and the second looks at different inclination values. Modeling the impacts of perturbation is included in each section, and the final portion determines the effects of atmospheric drag at various node values. The simulation was run using the Celestial Mechanics software system's SATORB module (Beutler, 2005), which solves the perturbation equations via numerical integration. The findings were examined using Matlab 2012. Conclusion that the impacts are stronger for retrograde orbits, which is due to the fact that the satellite moves in the opposite direction. The atmospheric drag effects for all orbital elements were increased by increasing the area to mass ratio. When the node value rises, the size parameter changes slightly, but the other orbital elements change. At varying inclinations, it is found that the changes in orbital elements due to atmospheric drug.

Dispersed and disparate sensor management for tracking low earth orbit satellites

2009 ◽  
Author(s):  
A. Zatezalo ◽  
A. El-Fallah ◽  
R. Mahler ◽  
R. K. Mehra ◽  
J. Brown
Keyword(s):  
Low Earth Orbit ◽  
Earth Orbit ◽  
Sensor Management ◽  
Low Earth Orbit Satellites
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