title: Low-Latitude Noctilucent Cloud of 15 June 1963.
abstract: A bright noctilucent cloud was observed and photographed north-west of Tucson on 15 June 1963. Results of computations indicate that the cloud was at a height of 71 kilometers. The cloud appears to have resulted from the launching of a Scout space vehicle.
authors.forename: A B
authors.initials: AB
authors.lastname: Meinel
authors.forename: B
authors.initials: B
authors.lastname: Middlehurst
authors.forename: E
authors.initials: E
authors.lastname: Whitaker