Electron precipitation bursts in the nighttime slot region measured simultaneously from two satellites

Details Electron precipitation bursts in the nighttime slot region measured simultaneously from two satellites Electron precipitation bursts in the nighttime slot region measured simultaneously from two satellites

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....92.4515i&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 92, May 1, 1987, p. 4515-4524. Research supported by Lockheed Independent

Computer Science

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Electron Precipitation, High Energy Electrons, Ionospheric Electron Density, Noaa 6 Satellite, Satellite Sounding, Night Sky, Stimulated Emission Devices

Scientific paper

Based on data acquired in 1982 with the Stimulated Emission of Energetic Particles payload on the low-altitude (170-280 km) S81-1 spacecraft and the Space Environment Monitor instrumentation on the NOAA 6 satellite (800-830 km), a study has been made of short-duration nighttime electron precipitation bursts at L = 2.0-3.5. Five events, probably associated with lightning, were observed simultaneously from the two spacecraft within 1.2 s, providing a measure of the spatial extent of the bursts. This limited sample indicates that the intensity of precipitation events falls off with width in longitude and L shell but individual events extend as much as 5 deg in invariant latitude and 43 deg in longitude. The number of events above a given flux observed in each satellite was found to be approximately inversely proportional to the flux. On the basis of these data, weak bursts cannot be discounted from being a major contributor to populating the drift loss cone with electrons which ultimately precipitate into the atmosphere.

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