An Application of ARGOS Observations to Satellite Drag

Mathematics – Logic

Scientific paper

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0355 Thermosphere: Composition And Chemistry, 7549 Ultraviolet Emissions, 7853 Spacecraft/Atmosphere Interactions

Scientific paper

One of the most important applications of near-Earth space environmental forecasting is the routine estimation of upper atmospheric drag for precision orbit determination and prediction of objects in low earth orbit (LEO; altitudes less than 2500 km). Drag on LEO objects is the largest source of error in orbit determination, primarily because of the inaccuracy of upper atmospheric mass density estimates. Obsrevations acquired by the Low-Resolution Airglow and Auroral Spectrograph (LORAAS) sensor aboard the STP/P91-1 Advanced Research Global Observing Satellite (ARGOS) mission and the follow-on UV sensors on DMSP missions covering the next decade provide the ability to quantitatively assess the response of the upper atmosphere to solar and geomagnetic forcing. We report our investigation into geomagnetically quiet and active conditions and compare the results to climatological models. The ARGOS results will also be compared to drag-derived values obtained using the general perturbations (GP) and special perturbations (SP) techniques.

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