Fig. 7
H2CO (515–414) transition at 351.769 GHz observed on 12.96 UT January with the lower resolution AOS. The vertical axis is the main beam brightness temperature and the horizontal axis is the Doppler velocity in the comet rest frame. This line is outside the CTS and AOSC frequency ranges. The frequency scale in the range close to the border of the AOS can be slightly inaccurate.
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