NASA's Formulation of Two Multiple Spacecraft Missions To Explore the Ionosphere and Thermosphere

Details NASA's Formulation of Two Multiple Spacecraft Missions To Explore the Ionosphere and Thermosphere NASA's Formulation of Two Multiple Spacecraft Missions To Explore the Ionosphere and Thermosphere

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1144..207g&link_type=abstract

FUTURE PERSPECTIVES OF SPACE PLASMA AND PARTICLE INSTRUMENTATION AND INTERNATIONAL COLLABORATIONS: Proceedings of the Internatio

Physics

Plasma Physics

Space Plasma Physics, Magnetospheric Configuration And Dynamics, Electric And Magnetic Fields

Scientific paper

The U.S. National Aeronautics and Space Administration has formulated two ionosphere-thermosphere (I-T) spacecraft missions to solve major unresolved I-T problems. These missions are the three or four spacecraft Geospace Electrodynamic Connections (GEC) mission and NASA's Living with a Star Program's two spacecraft Ionosphere-Thermosphere Storm Probes (I-TSP) mission. The spacecraft on these missions will measure in situ all of the neutral atmosphere and ionosphere properties, including densities, temperatures and the ion and neutral velocities, needed to understand the local state and dynamics of the system. The two I-TSP spacecraft will focus on the middle latitudes. The goal of I-TSP is to understand the physics of communications-affecting ionospheric structures. On the other hand, the multiple spacecraft of GEC will also carry electric field and energetic charged particle instruments to measure the magnetospheric energy inputs and carry sufficient propulsion to make several weeklong deep-dipping campaigns to below 150 km. GEC's objective is to resolve how the ionosphere-thermosphere system responds to magnetospheric energy inputs and how in turn it feeds back on the magnetosphere. There has been a dearth of missions to this upper regime of our atmosphere and these two planned missions would provide the means to finally resolve key space weather and compelling science problems.

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