Data were calibrated and analyzed using GBTIDL. Typical system temperatures were between 105 K and 120 K. Typical rms noise in the resulting calibrated spectra was 0.20 K. Non-detections and detections are listed in Tables 2 and 3, respectively. We estimate uncertainty due to flux calibration of 20%.

In addition to single pointings, we mapped three regions (N56, N65 2 and N77 1) that displayed strong CS emission. The map sizes were 1′x1 ′(N56 and N77-1) and 2′x2′(N65-2), both using a Nyquist-sampling step-size of 6.12″.

Observations were used from the Hi-Gal \citep{Molinari2010} project, a Herschel Space Telescope imaging survey of the Galactic plane. This survey observed all the sources in this study at wavelengths between 60 \(\mu\)m and 600 \(\mu\)m. Data were downloaded from the Spitzer Science Center website. Level 2 data products were used, which have been fully calibrated.