NASA Goddard Space Flight Center
NASA’s Equatorial Vortex Experiment
The crew prepares the fins and rocket motors for the EVEX launches.
Credit: NASA
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A NASA-funded sounding rocket mission will launch from an atoll in the Pacific this spring. The mission will help scientists better understand and predict the electrical storms in Earth's upper atmosphere that can negatively affect satellite communication and global positioning signals.
The mission, called EVEX, for the Equatorial Vortex Experiment, will launch into a crucial layer of charged particles surrounding our planet. Called the ionosphere, this layer serves as the medium through which high frequency radio waves – such as those sent down to the ground by global positioning system (GPS) satellites or, indeed, any satellite communicating with Earth – travel. The ionosphere begins about 60 miles above the ground and is filled with electrons and ions, alongside the more familiar extension of our electrically neutral atmosphere. Governed by Earth’s magnetic field, high-altitude winds, and incoming material and energy from the sun, the ionosphere can be calm in certain places or times of day, and quite turbulent at others.
EVEX will launch two rockets for a twelve-minute journey through the equatorial ionosphere above the South Pacific. This area of the ionosphere is known for calm days and tempestuous evenings, times when the ionosphere becomes rippled like a funhouse mirror, disturbing radio signals, and introducing GPS errors of a half mile or more. The two rockets will measure events in two separate regions of the ionosphere to see how they work together to drive the ionosphere from placid and smooth to violently disturbed. Such information could ultimately lead to the ability to accurately forecast this important aspect of space weather.
The launch window for EVEX is from April 27 to May 10. The team will decide when to fly based on conditions in the ionosphere on any given night.
Read more at www.nasa.gov/mission_pages/sounding-rockets/news/evex.html
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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NASA’s Equatorial Vortex Experiment
The crew prepares the fins and rocket motors for the EVEX launches.
Credit: NASA
----
A NASA-funded sounding rocket mission will launch from an atoll in the Pacific this spring. The mission will help scientists better understand and predict the electrical storms in Earth's upper atmosphere that can negatively affect satellite communication and global positioning signals.
The mission, called EVEX, for the Equatorial Vortex Experiment, will launch into a crucial layer of charged particles surrounding our planet. Called the ionosphere, this layer serves as the medium through which high frequency radio waves – such as those sent down to the ground by global positioning system (GPS) satellites or, indeed, any satellite communicating with Earth – travel. The ionosphere begins about 60 miles above the ground and is filled with electrons and ions, alongside the more familiar extension of our electrically neutral atmosphere. Governed by Earth’s magnetic field, high-altitude winds, and incoming material and energy from the sun, the ionosphere can be calm in certain places or times of day, and quite turbulent at others.
EVEX will launch two rockets for a twelve-minute journey through the equatorial ionosphere above the South Pacific. This area of the ionosphere is known for calm days and tempestuous evenings, times when the ionosphere becomes rippled like a funhouse mirror, disturbing radio signals, and introducing GPS errors of a half mile or more. The two rockets will measure events in two separate regions of the ionosphere to see how they work together to drive the ionosphere from placid and smooth to violently disturbed. Such information could ultimately lead to the ability to accurately forecast this important aspect of space weather.
The launch window for EVEX is from April 27 to May 10. The team will decide when to fly based on conditions in the ionosphere on any given night.
Read more at www.nasa.gov/mission_pages/sounding-rockets/news/evex.html
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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