Auroral X-ray imaging from high- and low-earth orbit

Details Auroral X-ray imaging from high- and low-earth orbit Auroral X-ray imaging from high- and low-earth orbit

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1745...39m&link_type=abstract

In: Instrumentation for planetary and terrestrial atmospheric remote sensing; Proceedings of the Meeting, San Diego, CA, July 23

Computer Science

Sound

Atmospheric Sounding, Auroral Spectroscopy, Electron Precipitation, Remote Sensing, Satellite-Borne Instruments, X Ray Imagery, Bremsstrahlung, Earth Orbital Environments, Magnetospheric Electron Density

Scientific paper

Observations of bremsstrahlung X-rays emitted by energetic electrons impacting the earth's atmosphere can be used for remotely sensing the morphology, intensity, and energy spectra of electron precipitation from the magnetosphere. Two auroral X-ray imagers, developed for future spaceflight, will be discussed. Polar Ionospheric X-ray Imaging Experiment is scheduled for launch on the NASA International Solar-Terrestrial Physics/Global Geospace Science program POLAR satellite in May, 1994. The POLAR orbit, with an apogee and perigee of 9 and 1.8 R(E) (earth radii), respectively, affords the opportunity to image the aurora from high altitude above the north pole continuously for several hours. The Magnetospheric Atmospheric X-ray Imaging Experiment is scheduled for launch aboard the NOAA-I satellite in late 1992. The 800-km polar orbit passes over both the northern and southern auroral zones every 101 minutes. The presentation emphasizes the experimental approaches used to exploit these very different orbits for remote sensing of the earth's auroral zones.

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