The 5.8 µm absorption bands for nitric acid (H 14 N 16 O 3 ): line positions and intensities for the ν 2 band at 1709.567 cm −1 and for its first associated hot bands (ν 2 +ν 9 −ν 9 , ν 2 +ν 7 −ν 7 , ν 2 +ν 6 −ν 6 )