The experimental lines are from L. Bizzocchi, V. Lattanzi, J. Laas, S. Spezzano, B. M. Giuliano, D. Prudenzano, C. Endres, O. Sipilä and P. Caselli, 2017, A&A 602, A34, doi: 10.1051/0004-6361/201730638. The quantum numbers are J, Ka, Kc and v.