The Scintillation Prediction Observations Research Task (SPORT) Mission

Thursday, 17 December 2015: 14:31
2016 (Moscone West)
James Frederick Spann1, Charles Swenson2, Otavio Durão3, Luis Loures4, Roderick A Heelis5, Rebecca L Bishop6, Guan Le7, Mangalathayil A Abdu3, Linda Habash Krause8, Clezio Marcos De Nardin3, Eloi Fonseca4 and The Scintillation Prediction Observations Research Task (SPORT) Mission, (1)NASA Marshall Space Flight Center, Huntsville, AL, United States, (2)Utah State University, Logan, UT, United States, (3)INPE National Institute for Space Research, Sao Jose dos Campos, Brazil, (4)ITA Technological Institute of Aeronautics, Sao Jose dos Campos, Brazil, (5)University Texas Dallas, Richardson, TX, United States, (6)Aerospace Corporation Los Angeles, Los Angeles, CA, United States, (7)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (8)NASA Marshall Space Flght Ctr, Huntsville, AL, United States
Structure in the charged particle number density in the equatorial ionosphere can have a profound impact on the fidelity of HF, VHF and UHF radio signals that are used for ground-to-ground and space-to-ground communication and navigation. The degree to which such systems can be compromised depends in large part on the spatial distribution of the structured regions in the ionosphere and the background plasma density in which they are embedded.

In order to address these challenges it is necessary to accurately distinguish the background ionospheric conditions that favor the generation of irregularities from those that do not. Additionally we must relate the evolution of those conditions to the subsequent evolution of the irregular plasma regions themselves. The background ionospheric conditions are conveniently described by latitudinal profiles of the plasma density at nearly constant altitude, which describe the effects of ExB drifts and neutral winds, while the appearance and growth of plasma structure requires committed observations from the ground from at least one fixed longitude.

This talk will present an international collaborative CubeSat mission called SPORT that stands for Scintillation Prediction Observations Research Task. This mission that will advance our understanding of the nature and evolution of ionospheric structures around sunset to improve predictions of disturbances that affect radio propagation and telecommunication signals. The science goals will be accomplished by a unique combination of satellite observations from a nearly circular middle inclination orbit and the extensive operation of ground based observations from South America near the magnetic equator. This approach promises Explorer class science at a CubeSat price.