title: Magnetospheric dayside cusp: a topside view of its 6300-angstrom atomic oxygen emission.
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.
authors.forename: G G
authors.initials: GG
authors.lastname: Shepherd
authors.forename: F W
authors.initials: FW
authors.lastname: Thirkettle