AURORAL LYMAN-ALPHA OBSERVATIONS,
Abstract
Observations have been made of Lyman-alpha auroral emissions during January and February 1967. The observations were made with a narrow-band sky-scanning photometer mounted on an earth-oriented satellite in polar orbit. Auroras in the southern hemisphere were usually single in structure, and those in the north, complex. The single auroral emissions show a typical latitude spread of about 6.5 deg. Intensities up to 60 kR were observed at times of high magnetic activity, implying energy deposition up to 20 ergs/sq cm/sec. The intensities show a correlation with high-latitude geomagnetic activity, with a breakdown during extremely active periods. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 25, 1969
- Accession Number
- AD0699203
Entities
People
- Malcolm A. Clark
Organizations
- The Aerospace Corporation