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Table 1
Information of IRAM 30 m and CSO 10.4 m observations.
| Telescope | Observing date | Frequency | Spectra | FWHM | Mode |
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| IRAM 30 m | Dec. 2013 | 89 GHz – | HCO+, HNC, | 29.0″ – | Mapping |
| Apr. 2014 | 110 GHz | N2H+, C18O | 23.5″ | ||
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| CSO 10.4 m | Jul. 2015 | 216 GHz – | DCO+, | ~33.4″ | Pointing |
| 218 GHz | SiO, DCN | ||||
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