Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

You searched for subject:(Satellite Drag Coefficients). One record found.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters

1. Flanagan, Harold Patrick. Improved Atmospheric Density Estimation for ANDE-2 Satellites using Drag Coefficients Obtained from Gas-Surface Interaction Equations.

Degree: MS, Aerospace Engineering, 2015, University of Kansas

A major issue in the process of predicting the future position of satellites in low earth orbit (LEO) is that the drag coefficient of a satellite is generally not precisely known throughout the satellite’s lifespan. One reason for this problem is that as a satellite travels through the Earth’s thermosphere, variations in the composition of the thermosphere directly affect the drag coefficient of the satellite. The greatest amount of uncertainty in the drag coefficient from these variations in the thermosphere comes from the amount of atomic oxygen that covers the satellites surface as the satellite descends to lower altitudes. This percent surface coverage of atomic oxygen directly affects the interaction between the surface of the satellite and the gas through which it is passing. The work performed in this thesis determines the drag coefficients of the ANDE-2 satellites over their life spans by using satellite laser ranging (SLR) data of the ANDE-2 satellites in unison with gas-surface interaction equations. The fractional coverage of atomic oxygen is determined by using empirically determined data and semi-empirical models that attempt to predict the fractional coverage of oxygen relative to the composition of the atmosphere. These drag coefficients are then used to determine the atmospheric densities experienced by these satellites over various days, so that inaccuracies in the atmospheric models can be observed. The drag coefficients of the ANDE-2 satellites decrease throughout the satellites’ life, and vary most due to changes in the temperature and density of the atmosphere. The greatest uncertainty in the atmosphere’s composition occurs at lower altitudes at the end of ANDE-2’s life. Advisors/Committee Members: McLaughlin, Craig A (advisor), Chao, Haiyang (cmtemember), Zheng, Zhongquan C (cmtemember).

Subjects/Keywords: Aerospace engineering; ANDE-2; Atmospheric Density; Gas-Surface Interaction Equations; Satellite Drag Coefficients

…eccentricity CD Satellite drag coefficient CD,ads Adsorption drag coefficient CD,cy Drag… …coefficient for clean satellite surface CD,sp Drag coefficient of a sphere CD,T Total drag… …Experiment GSI Gas-surface Interaction HASDM High Accuracy Satellite Drag Model ILRS… …26 Figure 7: Drag Coefficients for four satellites shapes during solar minimum (Moe… …29 Figure 10: Drag coefficient sensitivity relative to velocity for different satellite… 

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Flanagan, H. P. (2015). Improved Atmospheric Density Estimation for ANDE-2 Satellites using Drag Coefficients Obtained from Gas-Surface Interaction Equations. (Masters Thesis). University of Kansas. Retrieved from http://hdl.handle.net/1808/19392

Chicago Manual of Style (16th Edition):

Flanagan, Harold Patrick. “Improved Atmospheric Density Estimation for ANDE-2 Satellites using Drag Coefficients Obtained from Gas-Surface Interaction Equations.” 2015. Masters Thesis, University of Kansas. Accessed April 10, 2021. http://hdl.handle.net/1808/19392.

MLA Handbook (7th Edition):

Flanagan, Harold Patrick. “Improved Atmospheric Density Estimation for ANDE-2 Satellites using Drag Coefficients Obtained from Gas-Surface Interaction Equations.” 2015. Web. 10 Apr 2021.

Vancouver:

Flanagan HP. Improved Atmospheric Density Estimation for ANDE-2 Satellites using Drag Coefficients Obtained from Gas-Surface Interaction Equations. [Internet] [Masters thesis]. University of Kansas; 2015. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/1808/19392.

Council of Science Editors:

Flanagan HP. Improved Atmospheric Density Estimation for ANDE-2 Satellites using Drag Coefficients Obtained from Gas-Surface Interaction Equations. [Masters Thesis]. University of Kansas; 2015. Available from: http://hdl.handle.net/1808/19392

.