Auroral Polar Cap And Polar Cusp Modeling And Data Analysis For The Image Mission And Lena Instrument
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Auroral Polar Cap And Polar Cusp Modeling And Data Analysis For The Image Mission And Lena Instrument
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Author : National Aeronautics and Space Adm Nasa
language : en
Publisher: Independently Published
Release Date : 2018-09-26
Auroral Polar Cap And Polar Cusp Modeling And Data Analysis For The Image Mission And Lena Instrument written by National Aeronautics and Space Adm Nasa and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-26 with Science categories.
One of the chief mysteries in the LENA perigee pass data is the lack of an apparent auroral oval in the images. Another is that in some cases ENA are seen from any direction near the Earth regardless of the latitude of the spacecraft. These facts lead one to ask a fundamental question: Is the instrument responding to ENA primarily? One possible way to get out of the "ambiguity" of the data is to assume that at least part of the signal is produced by something other than ENA. The two main candidates for this "something else" are UV light and energetic charged particles. UV light could only effect the instrument when its fan shaped aperture points toward the source. The most intense of which will be the sun, with day glow being the second strongest and the auroral zone, the third. We can rule out UV light as a prime source of counts in the perigee pass data for the following reasons: 1) The perigee pass signal is different in form and much stronger than the sun pulse signal seen just before or just after perigee; 2) There is no indication of the auroral zone, which would produce at least two peaks in the counts versus spin phase curve; 3) Mike Colliers' analysis of the sun pulse signal shows that it varies with the flux of the solar wind and not with variations in the solar UV flux. Charge particles that enter the aperture of the instrument and produce counts would show up when the instrument looks in the direction from which they come. In all of the data I am analyzing voltages were being applied to the collimators so that most charged particles should have been excluded from the instrument but this effect could still show up where the flux of energetic particles is high enough. The most likely place would be in the auroral zone where energetic electrons and protons precipitate. If these particles are producing counts then they should be seen when the instrument looks in and near the zenith direction. In nearly all of the perigee passes the zenith
Commerce Business Daily
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Author :
language : en
Publisher:
Release Date : 1998-05
Commerce Business Daily written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-05 with Government purchasing categories.
Polar Cap Auroral Arcs
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Author : Glenn Allen Berg
language : en
Publisher:
Release Date : 1993
Polar Cap Auroral Arcs written by Glenn Allen Berg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Auroras categories.
The Polar Cusp
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Author : Jan Anstein Holtet
language : en
Publisher: Springer
Release Date : 1985-02-28
The Polar Cusp written by Jan Anstein Holtet and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985-02-28 with Science categories.
Proceedings of the NATO Advanced Research Workshop on the Morphology and Dynamics of the Polar Cusp, Lillehammer, Norway, May 7-12, 1984
Polar Exploring Earthspace In The Realms Of The Auroras
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Author :
language : en
Publisher:
Release Date : 1993
Polar Exploring Earthspace In The Realms Of The Auroras written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Auroras categories.
The Image Mission
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Author : James L. Burch
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The Image Mission written by James L. Burch and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
IMAGE (Imager for Magnetopause-to-Aurora Global Exploration) is the first NASA MIDEX mission and the first mission dedicated to imaging the Earth's magnetosphere. This volume offers detailed descriptions of the IMAGE instrumentation and of the image inversion techniques used to interpret the data. Also included are chapters on the IMAGE science objectives, the spacecraft design and capabilities, science and mission operations, and the processing and distribution of IMAGE's nonproprietary data products.
Journal Of Geophysical Research
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Author :
language : en
Publisher:
Release Date : 2005
Journal Of Geophysical Research written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Astrophysics categories.
Space Physics And Aeronomy Magnetospheres In The Solar System
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Author : Romain Maggiolo
language : de
Publisher: John Wiley & Sons
Release Date : 2021-05-04
Space Physics And Aeronomy Magnetospheres In The Solar System written by Romain Maggiolo and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-04 with Science categories.
An overview of current knowledge and future research directions in magnetospheric physics In the six decades since the term 'magnetosphere' was first introduced, much has been theorized and discovered about the magnetized space surrounding each of the bodies in our solar system. Each magnetosphere is unique yet behaves according to universal physical processes. Magnetospheres in the Solar System brings together contributions from experimentalists, theoreticians, and numerical modelers to present an overview of diverse magnetospheres, from the mini-magnetospheres of Mercury to the giant planetary magnetospheres of Jupiter and Saturn. Volume highlights include: Concise history of magnetospheres, basic principles, and equations Overview of the fundamental processes that govern magnetospheric physics Tools and techniques used to investigate magnetospheric processes Special focus on Earth’s magnetosphere and its dynamics Coverage of planetary magnetic fields and magnetospheres throughout the solar system Identification of future research directions in magnetospheric physics The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals. Find out more about the Space Physics and Aeronomy collection in this Q&A with the Editors in Chief
The Neutral Particle Detector On The Mars And Venus Express Missions
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Author : Alexander Grigoriev
language : en
Publisher:
Release Date : 2007
The Neutral Particle Detector On The Mars And Venus Express Missions written by Alexander Grigoriev and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Imaging systems in astronomy categories.
Plasmas In Space
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Author : Morton A. Levine
language : en
Publisher:
Release Date : 1966
Plasmas In Space written by Morton A. Levine and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Plasma astrophysics categories.