CALCULATION OF SPECTROSCOPIC DATA FOR THE V=2 AND V=3 STATES OF NITRIC-OXIDE

The calculation of line positions, energy levels and line intensities for the NO overtone bands 2-0 and 3-0, done for the AFGL atmospheric trace gas data tape, is presented. A simultaneous least-squares fit has been made to the measured frequencies of the overtone bands, using previously determined constants for the ground (ν = 0) state. This has resulted in new spectroscopic constants for the ν = 2 and ν = 3 states. The eigenvectors were used to compute line intensities, while the same line halfwidths were used for the fundamentals as for the overtone bands. © 1979.