NO and O2 Ultraviolet Nightglow and Spacecraft Glow from the S3-4 Satellite

摘要

Observations (1600-2950 A) from the S3-4 satellite of the Earth's nightglow atapproximately 6 A resolution have been analyzed. These data indicate that the only significant emission from NO are the delta and gamma bands. The relative brightness of these bands was consistent with previous observations at lower resolution. The data support the presence of O2 emissions in the Herzberg I, II, and III bands in ratios (approximately 4.5:1:1.4), consistent with analyses of previous ground-based observations of these band systems. Spacecraft glow is seen from the N2 Lyman-Birge-Hopfield bands, as previously reported; however, no spacecraft-relate emissions were seen from NO or O2.