68 transitions of CHD₂CHO predicted to be the brightest assuming a rotational temperature of 125 K. The red line indicates the predicted line intensities obtained by fitting to the lines with the synthetic spectra, thereby constraining the column density. In each panel, the numbers on the upper left corner indicate the excitation temperature T_ex of the fitted transitions. An asterisk next to this number indicates situations where two lines from Table A.1 with similar values for E_u fall within 10 MHz of each other and are shown together in one panel.