**9**_{-1}→8_{-2} E^{} View | 9.93 GHz (I) | 9936.202 | | 7 | 2 | SLY93^{*}, VOR06, VOR10B, VOR11 (in total 4 papers) |

**4**_{3}→5_{2} A^{+} View | 9.97 GHz | 9978.732 | | 1 | 24 | SLY93^{*}, ROL99 (in total 2 papers) |

**4**_{3}→5_{2} A^{-} View | 10.05 GHz | 10058.304 | | 1 | 24 | SLY93^{*}, ROL99 (in total 2 papers) |

**10**_{1}→9_{2} A^{-} View | 23 GHz (I) | 23445 | | 5 | 0 | MEN86B^{*}, VOR11, NAK15 (in total 3 papers) |

**3**_{2}→3_{1} E^{} View | 24.928 GHz (I) | 24928.707 | | 3 | 0 | BEU05^{*}, VOR06, VOR11 (in total 3 papers) |

**4**_{2}→4_{1} E^{} View | 24.933 GHz (I) | 24933.468 | | 3 | 73 | BAR71^{*}, VOR06, VOR11, GOM14 (in total 4 papers) |

**2**_{2}→2_{1} E^{} View | 24.934 GHz (I) | 24934.382 | | 2 | 0 | VOR06^{*}, VOR11 (in total 2 papers) |

**5**_{2}→5_{1} E^{} View | 24.959 GHz (I) | 24959.0789 | | 14 | 0 | BAR71^{*}, VOR05, VOR06, VOR11, TOW17 (in total 5 papers) |

**6**_{2}→6_{1} E^{} View | 25.0 GHz (I) | 25018.1225 | | 7 | 0 | BAR71^{*}, MAT80, MEN86, JOH92, VOR06, VOR11 (in total 6 papers) |

**7**_{2}→7_{1} E^{} View | 25.1 GHz (I) | 25124.8719 | | 3 | 15 | BAR71^{*}, MAT80, VOR06, VOR11 (in total 4 papers) |

**8**_{2}→8_{1} E^{} View | 25.2 GHz (I) | 25294.4165 | | 3 | 0 | BAR71^{*}, VOR06, VOR11 (in total 3 papers) |

**9**_{2}→9_{1} E^{} View | 25.5 GHz (I) | 25541.3979 | | 1 | 0 | VOR06^{*} (in total 1 papers) |

**4**_{-1}→3_{0} E^{} View | 36 GHz (I) | 36169.265 | | 911 | 50 | TUR72^{*}, MOR85, HAS89, KAL92, BER92, KAL93, ... (in total 32 papers) |

**7**_{0}→6_{1} A^{+} View | 44 GHz (I) | 44069.41 | | 497 | 858 | HAS90^{*}, BAC90, FOR90, KAL92, KAL93, SLY94, ... (in total 48 papers) |

**5**_{-1}→4_{0} E^{} View | 84 GHz (I) | 84521.169 | | 126 | 1 | BAT88^{*}, KAL01, WIE04, KAL06, VOR06, WAN14, MCC18B, BRE19 (in total 8 papers) |

**8**_{0}→7_{1} A^{+} View | 95 GHz (I) | 95169.46 | | 534 | 1184 | NAK86^{*}, PLA90, KAL94B, VAL95, VAL98, VAL00, ... (in total 29 papers) |

**11**_{-1}→10_{-2} E^{} View | 104 GHz (I) | 104300.414 | | 1 | 0 | VOR06^{*} (in total 1 papers) |

**6**_{-1}→5_{0} E^{} View | 132.8 GHz (I) | 132890.69 | | 15 | 0 | SLY97^{*}, VAL98, WIE04, CHO12, KAN13, LYO14 (in total 6 papers) |

**4**_{0}→4_{-1} E^{} View | 157.24 GHz | 157246.06 | | 1 | 0 | VAL98^{*} (in total 1 papers) |

**1**_{1}→1_{0} E^{} View | 165 GHz | 165050.19 | | 4 | 0 | SLY02^{*} (in total 1 papers) |

**4**_{2}→3_{1} E^{} View | 218 GHz (I) | 218440 | | 2 | 0 | HUN14^{*}, CHE19 (in total 2 papers) |

**8**_{-1}→7_{0} E^{} View | 229 GHz (I) | 229758.76 | | 5 | 0 | VAL98^{*}, SLY02, HUN14, CHE19 (in total 4 papers) |

**5**_{2}→4_{1} E^{} View | 266.8 GHz (I) | 266838.1 | | 1 | 0 | CHE19^{*} (in total 1 papers) |

**9**_{-1}→8_{0} E^{} View | 278 GHz (I) | 278305 | | 1 | 0 | YAN14^{*} (in total 1 papers) |