Notes. The columns are (from left to right): the transition as described by the hyperfine quantum number (F), the frequency of the transition, the Einstein A coefficient (A_ul), the upper level energies and the telescope (receiver) used for carrying out these observations. The frequencies of the HFS lines near 3.3 GHz and 700 MHz were measured in the laboratory by Truppe et al. (2013) with uncertainties of 3 Hz and ≈ 20 Hz, respectively, while those of the 532/536 GHz rotational lines where measured by Truppe et al. (2014) with 0.6 kHz uncertainty. The frequencies of the 2006/2010 GHz rotational lines are taken from Davidson et al. (2001) and have uncertainties of ≈ 0.15 MHz. ^(a)The values in the brackets represent the exponent of the Einstein A coefficient. ^(b)Indicates the HFS transition that was used to set the velocity scale in the analysis. ^(c)The CH HFS transitions at 2010 GHz were not observed because of strong contamination from atmospheric ozone features at 149.1558 μm and 149.7208 μm.