Results 11 to 20 of about 69,393 (296)
Satellite Orbital Drag During Magnetic Storms [PDF]
Space Weather, 2019 AbstractWe investigate satellite orbital drag effects at low‐Earth orbit associated with thermosphere heating during magnetic storms caused by coronal mass ejections. CHAllenge Mini‐satellite Payload (CHAMP) and Gravity Recovery And Climate Experiment (GRACE) neutral density data are used to compute orbital drag.
D. M. Oliveira, E. Zesta
openaire +5 more sources
Drag-free and attitude control for the GOCE satellite [PDF]
Automatica, 2008 The paper concerns Drag-Free and Attitude Control of the European satellite Gravity field and steady-state Ocean Circulation Explorer (GOCE) during the science phase.
Aguirre-Martinez +13 more
core +3 more sources
All-propulsion design of the drag-free and attitude control of the European satellite GOCE
Acta Astronautica, 2009 This paper concerns the drag-free and attitude control (DFAC) of the European Gravity field and steady-state Ocean Circulation Explorer satellite (GOCE), during the science phase.
Canuto +18 more
core +2 more sources
Drag Effect of Kompsat-1 During Strong Solar and Geomagnetic Activity [PDF]
Journal of Astronomy and Space Sciences, 2007 In this paper, we analyze the orbital variation of the KOrea Multi-Purpose SATellite-1(KOMPSAT-1) in a strong space environment due to satellite drag by solar and geomagnetic activities.
J. Park +7 more
doaj +1 more source
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 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
doaj +1 more source
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
doaj +1 more source