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Found 13 entries in the Bibliography.
Showing entries from 1 through 13
2018 |
How might the thermosphere and ionosphere react to an extreme space weather event? This chapter explores how the thermosphere and ionosphere (T-I) might respond to extreme solar events. Three different scenarios are considered: (1) an increase in solar UV and EUV radiation for a number of days, (2) an extreme enhancement in the solar X-rays and EUV radiation associated with a flare, and (3) an extreme CME driving a geomagnetic storm. Estimating the response to the first two scenarios is reasonably well defined, and although they would certainly impact the T-I system, those impacts could potentially be miti ... Fuller-Rowell, Tim; Emmert, John; Fedrizzi, Mariangel; Weimer, Daniel; Codrescu, Mihail; Pilinski, Marcin; Sutton, Eric; Viereck, Rodney; Raeder, Joachim; Doornbos, Eelco; Published by: Published on: YEAR: 2018   DOI: 10.1016/B978-0-12-812700-1.00021-2 |
2017 |
A new data set of summed neutral N2 and O number density profiles, spanning altitudes between 150 and 400\ km, and observed during Northern Winter from 2010 to 2016 is presented. The neutral density profiles are derived from solar occultation measurements made by the 0.1\textendash20\ nm Zr channel on the Large Yield Radiometer (LYRA) instrument on board Project for Onboard Autonomy 2 (PROBA2). The climatology derived from the vertical profiles is consistent with that predicted by the NRLMSISE-00 mode ... Thiemann, E.; Dominique, M.; Pilinski, M.; Eparvier, F.; Published by: Space Weather Published on: 12/2017 YEAR: 2017   DOI: 10.1002/2017SW001719 |
2015 |
Seasonal variability in global eddy diffusion and the effect on neutral density We describe a method for making single-satellite estimates of the seasonal variability in global-average eddy diffusion coefficients. Eddy diffusion values as a function of time were estimated from residuals of neutral density measurements made by the Challenging Minisatellite Payload (CHAMP) and simulations made using the thermosphere-ionosphere-mesosphere electrodynamics global circulation model (TIME-GCM). The eddy diffusion coefficient results are quantitatively consistent with previous estimates based on satellite dr ... Published by: Journal of Geophysical Research: Space Physics Published on: 04/2015 YEAR: 2015   DOI: 10.1002/2015JA021084 annual; eddy diffusion; neutral density; satellite drag; seasonal variability; semiannual |
2014 |
Seasonal Variability in Global Eddy Diffusion and the Effect on Thermospheric Neutral Density
Pilinski, Marcin; Crowley, Geoff; Published by: Published on: |
Hunton, Don; Pilinski, Marcin; Crowley, Geoff; Azeem, I; Fuller-Rowell, Timothy; Matsuo, Tomoko; Fedrizzi, Mariangel; Solomon, Stanley; Qian, Liying; Thayer, Jeffrey; , others; Published by: Published on: |
Topside Ionospheric Sounder for CubeSats
Swenson, C; Pratt, J; Fish, CS; Winkler, C; Pilinski, M; Azeem, I; Crowley, G; Jeppesen, M; Martineau, R; Published by: Published on: |
Space Weather Tools of the Trade-A Changing Mix
Kunches, Joseph; Crowley, Geoff; Pilinski, Marcin; Winkler, Clive; Fish, Chad; Hunton, Don; Reynolds, Adam; Azeem, I; Published by: Published on: |
2013 |
Aerodynamic Analysis Based on Challenging Minisatellite Payload Satellite Lift-to-Drag Measurements A lift-to-drag ratio analysis is performed based on accelerometer measurements made by the Challenging Minisatellite Payload satellite to investigate the nature of gas-surface interactions taking place in orbit. The results described are for the November\ 2002 satellite yaw maneuver. At this time, the satellite flew at a mean altitude of 407\ km. Two types of gas\textendashsurface interaction are considered in the analysis. The first is a cosine (fully diffuse) reflection model with incomplete energy acc ...
Pilinski, Marcin; Argrow, Brian; Published by: Journal of Spacecraft and Rockets Published on: 11/2013 YEAR: 2013   DOI: 10.2514/1.A32394 |
Semi-Empirical Satellite Accommodation Model for Spherical and Randomly Tumbling Objects Orbits of launch-vehicle upper stages and spheres were observed by U.S. Air Force Space Command, and the resulting observations were converted by the Space Analysis Office to fitted ballistic coefficients by comparing the observed orbit with an orbit predicted by an atmospheric-drag model. The ballistic coefficients contain signals that result from atmospheric variability not captured by the model as well as signals that correspond to changes in the satellite-drag coefficient. For objects in highly elliptical orbits with ... Pilinski, Marcin; Argrow, Brian; Palo, Scott; Bowman, Bruce; Published by: Journal of Spacecraft and Rockets Published on: 05/2013 YEAR: 2013   DOI: 10.2514/1.A32348 |
2012 |
Thayer, J.; Liu, X.; Lei, J.; Pilinski, M.; Burns, A.; Published by: Journal of Geophysical Research Published on: Jan-01-2012 YEAR: 2012   DOI: 10.1029/2012JA017832 |
Tutorial: The Neutral Atmosphere and the Satellite Drag Environment
Crowley, Geoff; Pilinski, Marcin; Azeem, Irfan; Published by: Advances in the Astronautical Sciences Published on: |
2011 |
Dynamic gas-surface interaction modeling for satellite aerodynamic computations Drag coefficients are a large source of uncertainty when predicting the aerodynamic forces on orbiting satellites. Accordingly, the focus of this research is to improve the fidelity of drag modeling by investigating the nature of gas-surface interactions in low earth orbit. The author has investigated to what extent oxygen adsorption can influence the parameters of drag coefficient models, most notably the energy accommodation coefficient. Published by: Published on: |
Drag coefficients of satellites with concave geometries: comparing models and observations AERONOMIC studies make use of satellite drag measurements in the determination of thermospheric densities, enabling scientific inquiry into processes of the upper neutral Pilinski, Marcin; Argrow, Brian; Palo, Scott; Published by: Journal of Spacecraft and Rockets Published on: YEAR: 2011   DOI: https://doi.org/10.2514/1.50915 |
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