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IAU list of important spectral lines

Supplementary list of important spectral lines (II)

In preparation of the World Radiocommunication Conference 2000 (WRC 2000), which revised the allocations above 71 GHz, the IUCAF mm-wavelength working group has examined all known transitions in the millimeter and submillimeter wavebands. They have selected a limited number of the astrophysically most important spectral lines.

This list supplements earlier lists such as those produced by the International Astronomical Union, IAU, (see previous page) and is to be used in allocating frequency bands to the Radio Astronomy Service.

Supplementary list of important spectral lines

Substance

Rest Frequency

Suggested

minimum bandwidth

Deuterium (DI)

327.348 MHz 327 - 327.7 MHz

Hydrogen (HI)

1420.406

MHz 1370.0 - 1427 MHz

Hydroxyl radical (OH)

1612.231 MHz 1606.8 - 1613.8 MHz

Hydroxyl radical (OH)

1665.402 MHz 1659.8 - 1667.1 MHz

Hydroxyl radical (OH)

1667.359 MHz 1661.8 - 1669 MHz

Hydroxyl radical (OH)

1720.53 MHz 1714.8 - 1722.2 MHz

Methyladyne (CH)

3263.794 MHz 3242.4 - 3267.1 MHz

Methyladyne (CH)

3335.481 MHz 3324.4 - 3338.8 MHz

Methyladyne (CH)

3349.193 MHz 3338 - 3352.5 MHz

Formaldehyde (H2CO)

4829.66 MHz 4813.6 - 4834.5 MHz

Methanol (CH3OH)

6668.518 MHz 6661.8 - 6675.2 MHz

Helium (3He+)

8665.65 MHz 8657 - 8674.3 MHz

Methanol (CH3OH)

12.178 GHz 12.17 - 12.19 GHz

Formaldehyde (H2CO)

14.488 GHz 14.44 - 14.5 GHz

Cyclopropenylidene (C3H2)

18.343 GHz 18.28 - 18.36 GHz

Cyclopropenylidene (C3H2)

21.587 GHz 21.56 - 21.61 GHz

Water vapor (H2O)

22.235 GHz 22.16 - 22.26 GHz

Dicarbon monosulphide (CCS)

22.344 GHz 22.32 - 22.37 GHz

Ammonia (NH3)

23.694 GHz 23.61 - 23.72 GHz

Ammonia (NH3)

23.723 GHz 23.64 - 23.75 GHz

Ammonia (NH3)

23.87 GHz 23.79 - 23.89 GHz

Ammonia (NH3)

24.139 GHz 24.11 - 24.16 GHz

Methanol (CH3OH)

36.169 GHz 36.13 - 36.21 GHz

Cyanoacetylene (HC3N)

36.392 GHz 36.36 - 36.43 GHz

Silicon monoxide (SiO)

42.821 GHz 42.78 - 42.86 GHz

Silicon monoxide (SiO)

43.122 GHz 43.08 - 43.17 GHz

Silicon monoxide (SiO)

43.424 GHz 43.38 - 43.47 GHz

Dicarbon monosulphide (CCS)

45.379 GHz 45.33 - 45.42 GHz

Cyanoacetylene (HC3N)

45.49 GHz 45.44 - 45.54 GHz

Carbon monosulphide (13CS)

46.247 GHz 46.20 - 46.29 GHz

Carbon monosulphide (C34S)

48.207 GHz 48.16 - 48.26 GHz

Carbon monosulphide (CS)

48.991 GHz 48.83 - 49.04 GHz

Oxygen (O2)

56.265 GHz 56.21 - 56.32 GHz

Oxygen (O2)

58.324 GHz 58.27 - 58.38 GHz

Oxygen (O2)

58.446 GHz 58.39 - 58.5 GHz

Oxygen (O2)

59.164 GHz 59.10 - 59.22 GHz

Oxygen (O2)

59.591 GHz 59.53 - 59.65 GHz

Oxygen (O2)

60.306 GHz 60.25 - 60.37 GHz

Oxygen (O2)

60.434 GHz 60.37 - 60.49 GHz

Oxygen (O2)

61.151 GHz 61.09 - 61.21 GHz

Oxygen (O2)

62.486 GHz 62.42 - 62.55 GHz

Deuterated formylium (DCO+)

72.039 GHz 71.97 - 72.11 GHz

Deuterium cyanide (DCN)

72.415 GHz 72.34 - 72.49 GHz

Cyanoacetylene (HC3N)

72.784 GHz 72.71 - 72.86 GHz

Methyl cyanide (CH3CN)

73.59 GHz 73.51 - 73.66 GHz

Deuterated water (HDO)

80.578 GHz 80.50 - 80.66 GHz

Cyanoacetylene (HC3N)

81.881 GHz 81.80 - 81.96 GHz

Cyclopropenylidene (C3H2)

82.966 GHz 82.88 - 83.05 GHz

Cyclopropenylidene (C3H2)

85.339 GHz 85.05 - 85.42 GHz

Methyl acetylene (CH3CCH)

85.5 GHz 85.41 - 85.59 GHz

Deuterated Ammonia (NH2D)

85.926 GHz 85.84 - 86.01 GHz

Hydrogen cyanide (HC15N)

86.055 GHz 85.97 - 86.14 GHz

Silicon monoxide (SiO)

86.243 GHz 86.16 - 86.33 GHz

Hydrogen cyanide (H13CN)

86.34 GHz 86.25 - 86.43 GHz

Formylium (H13CO+)

86.754 GHz 86.67 - 86.84 GHz

Hydrogen isocyanide (HN13C)

87.091 GHz 87.00 - 87.18 GHz

Silicon monoxide (SiO)

86.847 GHz 86.76 - 86.93 GHz

Ethynyl radical (C2H)

87.3 GHz 87.21 - 87.39 GHz

Hydrogen cyanide (HCN)

88.632 GHz 88.34 - 88.72 GHz

Hydrogen isocyanide (H15NC)

88.866 GHz 88.78 - 88.95 GHz

Formylium (HCO+)

89.189 GHz 88.89 - 89.28 GHz

Hydrogen isocyanide (HNC)

90.664 GHz 90.57 - 90.75 GHz

Cyanoacetylene (HC3N)

90.979 GHz 90.89 - 91.07 GHz

Methyl cyanide (CH3CN)

91.98 GHz 91.88 - 92.07 GHz

Carbon monosulphide (13CS)

92.494 GHz 92.40 - 92.59 GHz

Diazenylium (N2H+)

93.174 GHz 93.08 - 93.27 GHz

Carbon monosulphide (C34S)

96.413 GHz 96.32 - 96.51 GHz

Carbon monosulphide (CS)

97.981 GHz 97.65 - 98.08 GHz

Sulphur monoxide (SO)

99.3 GHz 99.20 - 99.4 GHz

Cyanoacetylene (HC3N)

100.076 GHz 99.98 - 100.18 GHz

Methyl acetylene (CH3CCH)

102.5 GHz 102.39 - 102.6 GHz

Cyanoacetylene (HC3N)

109.174 GHz 109.06 - 109.28 GHz

Sulphur monoxide (SO)

109.252 GHz 109.14 - 109.36 GHz

Carbon monoxide (C18O)

109.782 GHz 109.67 - 109.89 GHz

Deuterated Ammonia (NH2D)

110.153 GHz 110.04 - 110.26 GHz

Carbon monoxide (13CO)

110.201 GHz 119.83 - 110.31 GHz

Methyl cyanide (CH3CN)

110.38 GHz 110.27 - 110.49 GHz

Carbon monoxide (C17O)

112.359 GHz 112.25 - 112.47 GHz

Cyano radical (CN)

113.5 GHz 113.39 - 113.61 GHz

Carbon monoxide (CO)

115.271 GHz 114.88 - 115.39 GHz

Oxygen (O2)

118.75 GHz 118.63 - 118.87 GHz

Silicon monoxide (SiO)

127.269 GHz 127.14 - 127.4 GHz

Formaldehyde (H213CO)

137.45 GHz 137.31 - 137.59 GHz

Carbon monosulphide (13CS)

138.739 GHz 138.60 - 138.88 GHz

Formaldehyde (H2CO)

140.84 GHz 140.69 - 140.98 GHz

Deuterated formylium (DCO+)

144.077 GHz 143.93 - 144.22 GHz

Deuterium cyanide (DCN)

144.828 GHz 144.68 - 144.97 GHz

Formaldehyde (H2CO)

145.603 GHz 145.45 - 145.75 GHz

Carbon monosulphide (CS)

146.969 GHz 146.48 - 147.12 GHz

Methyl cyanide (CH3CN)

147.17 GHz 147.02 - 147.32 GHz

Nitric oxide (NO)

150.4 GHz 149.95 - 150.85 GHz

Formaldehyde (H2CO)

150.498 GHz 150.35 - 150.65 GHz

Methyl acetylene (CH3CCH)

153.8 GHz 153.64 - 153.95 GHz

Cyanoacetylene (HC3N)

154.657 GHz 154.5 - 154.81 GHz

Cyanoacetylene (HC3N)

163.753 GHz 163.59 - 163.92 GHz

Hydrogen sulphide (H2S)

168.76 GHz 168.59 - 168.93 GHz

Silicon monoxide (SiO)

173.688 GHz 173.51 - 173.86 GHz

Water vapor (H2O)

183.31 GHz 183.13 - 183.49 GHz

Carbon monosulphide (CS)

195.954 GHz 195.30 - 196.15 GHz

Water vapor (H218O)

203.132 GHz 202.93 - 203.34 GHz

Sulphur monoxide (SO)

206.176 GHz 205.97 - 206.38 GHz

Sulphur monoxide (SO)

215.221 GHz 215.01 - 215.44 GHz

Deuterated formylium (DCO+)

216.113 GHz 215.90 - 216.33 GHz

Silicon monoxide (SiO)

217.105 GHz 216.89 - 217.32 GHz

Deuterium cyanide (DCN)

217.239 GHz 217.02 - 217.46 GHz

Formaldehyde (H2CO)

218.222 GHz 218.00 - 218.44 GHz

Carbon monoxide (C18O)

219.56 GHz 219.34 - 219.78 GHz

Carbon monoxide (13CO)

220.399 GHz 219.67 - 220.62 GHz

Methyl cyanide (CH3CN)

220.7 GHz 220.48 - 220.92 GHz

Sulphur dioxide (SO2)

221.965 GHz 221.74 - 222.19 GHz

Methyl acetylene (CH3CCH)

222.1 GHz 221.87 - 222.32 GHz

Carbon monoxide (C17O)

224.714 GHz 224.49 - 224.94 GHz

Sulphur dioxide (SO2)

225.154 GHz 224.93 - 225.38 GHz

Deuterated water (HDO)

225.897 GHz 225.67 - 226.12 GHz

Cyano radical (CN)

226.6 GHz 226.37 - 226.83 GHz

Cyano radical (CN)

226.8 GHz 226.57 - 227.03 GHz

Carbon monoxide (CO)

230.538 GHz 229.77 - 230.77 GHz

Carbon monosulphide (13CS)

231.221 GHz 230.99 - 231.45 GHz

Carbon monosulphide (C34S)

241.016 GHz 240.77 - 241.26 GHz

Deuterated water (HDO)

241.562 GHz 241.32 - 241.8 GHz

Methanol (CH3OH)

241.7 GHz 241.46 - 241.94 GHz

Methanol (CH3OH)

241.767 GHz 241.53 - 242.01 GHz

Methanol (CH3OH)

241.791 GHz 241.55 - 242.03 GHz

Methanol (CH3OH)

241.842 GHz 241.6 - 242.08 GHz

Carbon monosulphide (CS)

244.953 GHz 244.14 - 245.2 GHz

Nitric oxide (NO)

250.6 GHz 250.35 - 250.85 GHz

Sulphur dioxide (SO2)

251.211 GHz 250.96 - 251.46 GHz

Methyl cyanide (CH3CN)

257.5 GHz 257.24 - 257.76 GHz

Hydrogen cyanide (H13CN)

259.012 GHz 258.75 - 259.27 GHz

Formylium (H13CO+)

260.255 GHz 259.99 - 260.52 GHz

Silicon monoxide (SiO)

260.518 GHz 260.26 - 260.78 GHz

Hydrogen isocyanide (HN13C)

261.263 GHz 261.00 - 261.52 GHz

Ethynyl radical (C2H)

262 GHz 261.74 - 262.26 GHz

Sulphur dioxide (SO2)

262.334 GHz 262.07 - 262.6 GHz

Hydrogen cyanide (HCN)

265.886 GHz 265.00 - 266.15 GHz

Formylium (HCO+)

267.557 GHz 266.66 - 267.82 GHz

Hydrogen isocyanide (HNC)

271.981 GHz 271.71 - 272.25 GHz

Carbon monosulphide (13CS)

277.455 GHz 277.18 - 277.73 GHz

Diazenylium (N2H+)

279.511 GHz 279.23 - 279.79 GHz

Carbon monosulphide (C34S)

289.209 GHz 288.92 - 289.5 GHz

Sodium hydride (NaH)

289.86 GHz 289.57 - 290.15 GHz

Carbon monosulphide (CS)

293.912 GHz 292.93 - 294.21 GHz

Hydronium (H3O+)

307.192 GHz 306.88 - 307.5 GHz

Carbon monosulphide (13CS)

323.685 GHz 323.36 - 324.01 GHz

Water vapor (H2O)

325.153 GHz 324.83 - 325.48 GHz

Heavy water (HDO)

313.75 GHz 313.44 - 314.06 GHz

Carbon monoxide (C18O)

329.33 GHz 329.00 - 329.66 GHz

Carbon monoxide (13CO)

330.587 GHz 329.49 - 330.92 GHz

Carbon monosulphide (C34S)

337.397 GHz 337.06 - 337.73 GHz

Cyano radical (CN)

340.03 GHz 339.69 - 340.37 GHz

Cyano radical (CN)

340.25 GHz 339.91 - 340.59 GHz

Carbon monosulphide (CS)

342.883 GHz 341.74 - 343.23 GHz

Hydrogen cyanide (HC15N)

344.2 GHz 343.86 - 344.54 GHz

Magnesium hydride (MgH)

344.305 GHz 343.96 - 344.65 GHz

Hydrogen cyanide (H13CN)

344.34 GHz 344.00 - 344.68 GHz

Carbon monoxide (CO)

345.796 GHz 344.64 - 346.14 GHz

Formylium (H13CO+)

346.999 GHz 346.65 - 347.35 GHz

Silicon monoxide (SiO)

347.331 GHz 346.98 - 347.68 GHz

Ethynyl radical (C2H)

349.34 GHz 348.99 - 349.69 GHz

Ethynyl radical (C2H)

349.39 GHz 349.04 - 349.74 GHz

Hydrogen cyanide (HCN)

354.484 GHz 353.30 - 354.84 GHz

Formylium (HCO+)

356.734 GHz 355.54 - 357.09 GHz

Hydrogen isocyanide (HNC)

362.63 GHz 362.27 - 362.99 GHz

Hydronium (H3O+)

364.797 GHz 364.43 - 365.16 GHz

Oxygen (O2)

368.498 GHz 368.13 - 368.87 GHz

Carbon monosulphide (13CS)

369.908 GHz 369.54 - 370.28 GHz

H2D+

372.421 GHz 372.05 - 372.79 GHz

Diazenylium (N2H+)

372.672 GHz 372.30 - 373.04 GHz

Water vapor (H2O)

380.197 GHz 379.82 - 380.58 GHz

Carbon monosulphide (C34S)

385.578 GHz 385.19 - 385.96 GHz

Hydronium (H3O+)

388.459 GHz 388.07 - 388.85 GHz

Water vapor (H218O)

390.608 GHz 390.22 - 391 GHz

Silicon monoxide (SiO)

390.728 GHz 390.34 - 391.12 GHz

Carbon monosulphide (CS)

391.847 GHz 390.54 - 392.24 GHz

Hydronium (H3O+)

396.272 GHz 395.88 - 396.67 GHz

Carbon monosulphide (13CS)

416.123 GHz 415.71 - 416.54 GHz

Oxygen (O2)

424.763 GHz 424.34 - 425.19 GHz

Hydrogen cyanide (H13CN)

431.66 GHz 431.23 - 432.09 GHz

Carbon monosulphide (C34S)

433.751 GHz 433.32 - 434.19 GHz

Silicon monoxide (SiO)

434.12 GHz 433.69 - 434.55 GHz

Carbon monoxide (C18O)

439.088 GHz 438.65 - 439.53 GHz

Water vapor (H2O)

439.151 GHz 438.71 - 439.59 GHz

Carbon monoxide (13CO)

440.765 GHz 439.30 - 441.21 GHz

Carbon monosulphide (CS)

440.803 GHz 439.33 - 441.24 GHz

Hydrogen cyanide (HCN)

443.123 GHz 441.65 - 443.57 GHz

Lithium hydride (LiH)

443.957 GHz 443.51 - 444.4 GHz

Water vapor (H2O)

448.001 GHz 447.55 - 448.45 GHz

Hyrogen Sulphide (H2S)

452.39 GHz 451.94 - 452.84 GHz

Hydrogen isocyanide (HNC)

453.27 GHz 452.82 - 453.72 GHz

Carbon monoxide (CO)

461.041 GHz 459.50 - 461.5 GHz

Carbon monosulphide (13CS)

462.331 GHz 461.87 - 462.79 GHz

NH2

462.4 GHz 461.94 - 462.86 GHz

Heavy water (HDO)

464.925 GHz 464.46 - 465.39 GHz

NH2

469.3 GHz 468.83 - 469.77 GHz

Water vapor (H2O)

474.689 GHz 474.21 - 475.16 GHz

Silicon monoxide (SiO)

477.503 GHz 477.03 - 477.98 GHz

Heavy water (HDO)

479.947 GHz 479.47 - 480.43 GHz

Heavy water (HDO)

481.78 GHz 481.30 - 482.26 GHz

Carbon monosulphide (C34S)

481.916 GHz 481.43 - 482.4 GHz

Oxygen (O2)

487.249 GHz 486.76 - 487.74 GHz

Water vapor (H218O)

489.054 GHz 488.56 - 489.54 GHz

Carbon monosulphide (CS)

489.751 GHz 488.12 - 490.24 GHz

Heavy water (HDO)

490.597 GHz 490.11 - 491.09 GHz

Carbon (CI)

492.162 GHz 490.52 - 492.65 GHz

Carbon monosulphide (13CS)

508.528 GHz 508.02 - 509.04 GHz

Heavy water (HDO)

509.292 GHz 508.78 - 509.8 GHz

Hydrogen cyanide (H13CN)

517.97 GHz 517.45 - 518.49 GHz

Silicon monoxide (SiO)

520.878 GHz 520.36 - 521.4 GHz

Carbon monosulphide (C34S)

530.071 GHz 529.54 - 530.6 GHz

Hydrogen cyanide (HCN)

531.716 GHz 529.94 - 532.25 GHz

Methylidyne (CH)

532.7 GHz 532.17 - 533.23 GHz

SiH2

536.6 GHz 536.06 - 537.14 GHz

Methylidyne (CH)

536.8 GHz 536.26 - 537.34 GHz

Carbon monosulphide (CS)

538.689 GHz 536.89 - 539.23 GHz

Hydrogen isocyanide (HNC)

543.897 GHz 543.35 - 544.44 GHz

Water vapor (H218O)

547.676 GHz 547.13 - 548.22 GHz

Carbon monoxide (13CO)

550.926 GHz 549.09 - 551.48 GHz

Carbon monosulphide (13CS)

554.715 GHz 554.16 - 555.27 GHz

Water vapor (H2O)

556.936 GHz 556.38 - 557.49 GHz

Silicon monoxide (SiO)

564.244 GHz 563.68 - 564.81 GHz

Ammonia (15NH3)

572.113 GHz 571.54 - 572.69 GHz

Ammonia (NH3)

572.498 GHz 571.93 - 573.07 GHz

SiH2

575.8 GHz 575.22 - 576.38 GHz

Carbon monoxide (CO)

576.268 GHz 574.35 - 576.84 GHz

Carbon monosulphide (C34S)

578.216 GHz 577.64 - 578.79 GHz

Sodium Hydride (NaH)

579.48 GHz 578.90 - 580.06 GHz

Carbon monosulphide (CS)

587.616 GHz 587.03 - 588.2 GHz

Heavy water (HDO)

599.927 GHz 599.33 - 600.53 GHz

Carbon monosulphide (13CS)

600.889 GHz 600.29 - 601.49 GHz

Hydrogen cyanide (H13CN)

604.268 GHz 603.66 - 604.87 GHz

Silicon monoxide (SiO)

607.599 GHz 606.99 - 608.21 GHz

Hydrogen cyanide (HCN)

620.304 GHz 618.24 - 620.92 GHz

Water vapor (H2O)

620.7 GHz 620.08 - 621.32 GHz

Heavy water (HDO)

622.483 GHz 621.86 - 623.11 GHz

Silicon hydride (SiH)

624.9 GHz 624.27 - 625.53 GHz

Hydrogen chloride (HCl)

625.04 GHz 624.41 - 625.67 GHz

Hydrogen chloride (HCl)

625.98 GHz 625.35 - 626.61 GHz

Carbon monosulphide (C34S)

626.349 GHz 625.72 - 626.98 GHz

Silicon hydride (SiH)

627.7 GHz 627.07 - 628.33 GHz

Hydrogen isocyanide (HNC)

634.51 GHz 633.88 - 635.14 GHz

Carbon monosulphide (CS)

636.532 GHz 634.41 - 637.17 GHz

Carbon monosulphide (13CS)

647.05 GHz 646.40 - 647.7 GHz

H2D+

648.337 GHz 647.69 - 648.99 GHz

Silicon monoxide (SiO)

650.944 GHz 650.29 - 651.6 GHz

Carbon monoxide (13CO)

661.067 GHz 658.86 - 661.73 GHz

Carbon monosulphide (C34S)

674.47 GHz 673.80 - 675.14 GHz

Carbon monosulphide (CS)

685.435 GHz 683.15 - 686.12 GHz

Magnesium hydride (MgH)

687.1 GHz 686.41 - 687.79 GHz

Magnesium hydride (MgH)

687.9 GHz 687.21 - 688.59 GHz

Hydrogen cyanide (H13CN)

690.268 GHz 689.58 - 690.96 GHz

Carbon monoxide (CO)

691.473 GHz 689.17 - 692.16 GHz

Carbon monosulphide (13CS)

693.195 GHz 692.50 - 693.89 GHz

Silicon monoxide (SiO)

694.275 GHz 693.58 - 694.97 GHz

Hydrogen cyanide (HCN)

708.877 GHz 708.17 - 709.59 GHz

Oxygen (O2)

715.393 GHz 714.68 - 716.11 GHz

Carbon monosulphide (C34S)

722.577 GHz 721.85 - 723.3 GHz

Hydrogen isocyanide (HNC)

725.107 GHz 724.38 - 725.83 GHz

Carbon monosulphide (CS)

734.324 GHz 733.59 - 735.06 GHz

Silicon monoxide (SiO)

737.594 GHz 736.86 - 738.33 GHz

Carbon monosulphide (13CS)

739.324 GHz 738.58 - 740.06 GHz

Water vapor (H218O)

745.32 GHz 744.57 - 746.07 GHz

Water vapor (H2O)

752.033 GHz 751.28 - 752.79 GHz

Heavy water (HDO)

753.411 GHz 752.66 - 754.16 GHz

Carbon monosulphide (C34S)

770.669 GHz 769.90 - 771.44 GHz

Oxygen (O2)

773.84 GHz 773.07 - 774.61 GHz

Hydrogen cyanide (H13CN)

776.819 GHz 776.04 - 777.6 GHz

Silicon monoxide (SiO)

780.594 GHz 779.81 - 781.38 GHz

Carbon monosulphide (CS)

783.199 GHz 782.42 - 783.98 GHz

Carbon monosulphide (13CS)

785.434 GHz 784.65 - 786.22 GHz

Hydrogen cyanide (HCN)

797.433 GHz 794.77 - 798.23 GHz

Formylium (HCO+)

802.653 GHz 799.98 - 803.46 GHz

Carbon monoxide (CO)

806.652 GHz 803.96 - 807.46 GHz

Carbon (CI)

809.35 GHz 806.65 - 810.16 GHz

Hydrogen isocyanide (HNC)

815.684 GHz 812.96 - 816.5 GHz

Carbon monosulphide (C34S)

818.745 GHz 817.93 - 819.56 GHz

Silicon monoxide (SiO)

824.186 GHz 823.36 - 825.01 GHz

Carbon monosulphide (13CS)

831.523 GHz 830.69 - 832.36 GHz

Carbon monosulphide (CS)

832.057 GHz 829.28 - 832.89 GHz

Oxygen (O2)

834.146 GHz 833.31 - 834.98 GHz

Methylidinium (CH+)

835.07 GHz 834.23 - 835.91 GHz

Hydrogen cyanide (H13CN)

863.069 GHz 862.21 - 863.93 GHz

Carbon monosulphide (C34S)

866.804 GHz 865.94 - 867.67 GHz

Sulpher hydride (SH)

866.9 GHz 866.03 - 867.77 GHz

Silicon monoxide (SiO)

867.457 GHz 866.59 - 868.33 GHz

Sulpher hydride (SH)

875.2 GHz 874.32 - 876.08 GHz

Carbon monosulphide (13CS)

877.591 GHz 876.71 - 878.47 GHz

Carbon monosulphide (CS)

880.899 GHz 877.96 - 881.78 GHz

Carbon monoxide (13CO)

881.273 GHz 878.33 - 882.15 GHz

Hydrogen cyanide (HCN)

885.977 GHz 883.02 - 886.86 GHz

Lithium hydride (LiH)

886.5 GHz 885.61 - 887.39 GHz

Formilium (HCO+)

891.558 GHz 888.59 - 892.45 GHz

Heavy water (HDO)

893.639 GHz 892.74 - 894.53 GHz

Hydrogen isocyanide (HNC)

906.239 GHz 905.33 - 907.15 GHz

Silicon monoxide (SiO)

910.71 GHz 909.80 - 911.62 GHz

Carbon monosulphide (C34S)

914.844 GHz 913.93 - 915.76 GHz

Water vapor (H2O)

916.172 GHz 915.26 - 917.09 GHz

Heavy water (HDO)

919.31 GHz 918.39 - 920.23 GHz

Carbon monoxide (CO)

921.8 GHz 918.72 - 922.72 GHz

Carbon monosulphide (13CS)

923.633 GHz 922.71 - 924.56 GHz

Carbon monosulphide (CS)

929.723 GHz 926.62 - 930.65 GHz

Hydrogen cyanide (H13CN)

949.299 GHz 948.35 - 950.25 GHz

Silicon monoxide (SiO)

953.943 GHz 952.99 - 954.9 GHz

H3+

955 GHz 954.04 - 955.96 GHz

Carbon monosulphide (C34S)

962.865 GHz 961.90 - 963.83 GHz

Carbon monosulphide (13CS)

969.649

GHz 968.68 - 970.62 GHz

Water vapor (H2O)

970.315 GHz 969.34 - 971.29 GHz

Nitrogen hydride (NH)

974.479 GHz 973.50 - 975.45 GHz

Hydrogen cyanide (HCN)

974.488 GHz 971.24 - 975.46 GHz

Carbon monosulphide (CS)

978.529 GHz 977.55 - 979.51 GHz

Formilium (HCO+)

983.925 GHz 980.64 - 984.91 GHz

Heavy water (HDO)

984.138 GHz 983.15 - 985.12 GHz

Hydronium (H3O+)

984.697 GHz 983.71 - 985.68 GHz

Water vapor (H2O)

987.927 GHz 986.94 - 988.92 GHz

Water vapor (H218O)

994.634 GHz 993.64 - 995.63 GHz

Heavy water (HDO)

995.412 GHz 994.42 - 996.41 GHz

Hydrogen isocyanide (HNC)

996.771 GHz 995.77 - 997.77 GHz

Silicon monoxide (SiO)

997.155 GHz 996.16 - 998.15 GHz

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