Rotational energy levels, transition frequencies and Einstein A coefficients cover levels up to N=8 (1170 cm^-1) for NH, and up to N=4 (180 cm^-1) for ND.

Collisional rates for NH are from Toboła et al (2011) and cover temperatures in the range from 5 to 260 K; the rates for ND are from Dumouchel et al (2012) and cover temperatures in the range from 5 to 150 K.

In both cases, the rates were scaled from He to H₂ as collision partner; see Van der Tak et al (2020) for a description of this method.