Improved spectral parameters for the 16O2 infrared forbidden lines in the X3∑g− (0–1) band

New spectral parameters have been generated for the electric quadrupole (eq) and magnetic dipole (md) infrared transitions in the fundamental vibration-rotation 3∑g− (0–1) band of 16O2. Significant improvements in line positions (for both eq and md) and in the long standing problem of the md line intensities, have been achieved by combining recent theoretical work with the analysis of high resolution (0.002 and 0.01 cm−1) solar absorption spectra.