Results 11 to 20 of about 4,818 (307)
Estimates of Spherical Satellite Drag Coefficients in the Upper Thermosphere During Different Geomagnetic Conditions [PDF]
Space WeatherSatellite drag coefficients are crucial for determining the neutral mass densities that affect spacecraft operations in the thermosphere. Many studies typically utilize a constant drag coefficient of 2.2 to calculate the neutral density.
Xin Wang +9 more
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Ionospheric Drag for Satellite Formation Control
Journal of Guidance, Control, and Dynamics, 2019 Constellations of miniaturized satellites that provide novel and cost-effective capabilities are a growing trend for space systems.
Smith, B, Capon, C, Brown, M
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A Framework to Estimate Local Atmospheric Densities With Reduced Drag‐Coefficient Biases
Space Weather, 2022 An accurate estimation of upper atmospheric densities is crucial for precise orbit determination (POD), prediction of low Earth orbit satellites, and scientific studies of the Earth's atmosphere.
Vishal Ray +4 more
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Drag Coefficient Constraints for Space Weather Observations in the Upper Thermosphere
Space Weather, 2022 The space weather research community relies heavily on thermospheric density data to understand long‐term thermospheric variability, construct assimilative, empirical, and semiempirical global atmospheric models and validate model performance. One of the
Valerie Bernstein, Marcin Pilinski
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ATMOSPHERIC DRAG PERTURBATION EFFECT ON THE SATELLITES ORBITS [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2012 : In this paper the drag perturbation for the law orbit are studded ,Koll-method is suitable to used hear, equation of motion it's solved by numerical integration ;Rang-Kota-method was used ; to find the components of velocity and position and find the ...
Abdulh Rahman Hussain Salih
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Satellite motion in a Manev potential with drag [PDF]
Astrophysics and Space Science, 2012 Accepted for publication in Astrophysics and Space ...
Kirk, Samantha +2 more
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Satellite drag effects due to uplifted oxygen neutrals during super magnetic storms [PDF]
Nonlinear Processes in Geophysics, 2017 During intense magnetic storms, prompt penetration electric fields (PPEFs) through E × B forces near the magnetic equator uplift the dayside ionosphere. This effect has been called the dayside super-fountain effect.
G. S. Lakhina, B. T. Tsurutani
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Mode Switching Control for Drag-Free Satellite Based on Region of Attraction
Space: Science & Technology, 2023 This paper aims to propose a switching rule to improve the efficiency and stability of the mode switching process for the drag-free satellite. The switching rules will ensure the stability of the different controllers during the switching process. Unlike
Xiaobin Lian +5 more
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气体物理, 2023 The influence of solar and geomagnetic activities on electrical propulsion system of ultra-low orbit gravity satellite was evaluated for the current 25th solar cycle. The orbit simulation was carried out and the data of GOCE mission was analyzed.
Lin-wei WANG, Kai CUI, Da-ren YU
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iScience, 2023 Summary: The space gravitational wave detection mission requires a super ''static and precise'' scientific experiment environment. In order to solve the non-conservative force disturbance variation and the actuator noise and measurement noise, this paper
Junjie Zhou, Aiping Pang, Hongbo Zhou
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