Spectroscopic data (energy levels, transition frequencies and Einstein A coefficients) were taken from JPL. Collision data are scaled from the full quantum calculations for collisional (de)excitation of ortho- and para-H₂O by ortho- and para-H₂ from the references given below. These rates were calculated for temperatures in the range from 5 to 1500 K including energy levels up to about 740 cm^-1 above ground.

• References for collision rates:
  Dubernet, M.-L., Daniel, F., Grosjean, A., et al. 2006, A&A 460, 323
  Dubernet, M.-L., Daniel, F., Grosjean, A., & Lin, C. Y. 2009, A&A 497, 911
  Daniel, F., Dubernet, M., Pacaud, F., & Grosjean, A. 2010, A&A 517, A13
  Daniel, F., Dubernet, M., & Grosjean, A. 2011, A&A, 536, A76