Reports

Magnetospheric Dayside Cusp: A Topside View of Its 6300-Angstrom Atomic Oxygen Emission

Science  18 May 1973:
Vol. 180, Issue 4087, pp. 737-739
DOI: 10.1126/science.180.4087.737

Abstract

An interference filter photometer on the ISIS-1l spacecraft generates global maps of the atomic oxygen emission at 6300 angstroms from the ionosphere. The most prominent feature observed is a band of permanent red aurora on the dayside of the earth, centered on magnetic noon at about 78 degrees magnetic (invariant) latitude, brighter than the quiet-time nightside aurora.

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