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Accession Number:
ADA048801
Title:
Wideband Satellite Observations
Descriptive Note:
Final rept. 26 May 76-31 May 77
Corporate Author:
SRI INTERNATIONAL MENLO PARK CA
Report Date:
1977-06-01
Pagination or Media Count:
90.0
Abstract:
The Wideband Satellite P76-5 was launched on 22 May 1976 and data have been recorded at three receiving stations since that time. The unique nature of the Wideband signals coherent transmissions covering VHF to S-band and the geophysically interesting locations of the receiving stations covering auroral and equatorial latitudes have led to a number of new and significant results. These results pertain to both scintillation phenomenology and the physics of striation formulation. This report presents the results of the first year of Wideband operations work described previously in detailed bimonthly progress reports is only summarized here. Emphasis is placed on aspects not previously described, including 1 evidence for a geometrical scintillation enhancement due to east-west sheet-like irregularity structures in the auroral zone 2 spaced-receiver measurements of the diffraction pattern anisotropy and apparent drift motion 3 total electron content measurements of the paleward boundary of the ionospheric trough 4 characteristics of equatorial scintillations, particularly the gigahertz scintillation that develop during extremely active periods and 5 results from the equatorial scintillation campaign conducted in Peru during March 1977. Using the Wideband data base with theoretical work and systems analysis, it should be possible to develop a self- consistent model relating a simple parameterization of the irregularity structure and strength to the observed phase and amplitude scintillations.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE
