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Table B.2
Line parameters of H2CO.
| Transition | Sym.∗ | Frequency | E u / k | A ul | S ul | g u |  dv |
|
Δv |
|
S / N |
|
|
|||||||||||
| (JKa,Kc)u → (JKa,Kc)l | [MHz] | [K] | [s-1] | [mK km s-1] | [km s-1] | [km s-1] | [mK] | ||||
|
|
|||||||||||
| 21,2 → 11,1 | ortho | 140 839.516W | 6.8 | 5.30 × 10-5 | 1.5 | 5 | 13488(28) | – | – | – | 423 |
| 20,2 → 10,1 | para | 145 602.951W | 10.5 | 7.80 × 10-5 | 2.0 | 5 | 5611(67) | – | – | – | 95 |
| 21,1 → 11,0 | ortho | 150 498.335W | 7.5 | 6.46 × 10-5 | 1.5 | 5 | 10 850(97) | – | – | – | 208 |
| 31,3 → 21,2 | ortho | 211 211.449F | 16.9 | 2.27 × 10-4 | 2.7 | 7 | 13 732(26) | 10.6(0.1) | 2.3(0.1) | 5519 | 338 |
| 30,3 → 20,2 | para | 218 222.187F | 21.0 | 2.81 × 10-4 | 3.0 | 7 | 6567(22) | 10.6(0.1) | 2.2(0.1) | 2771 | 311 |
| 32,2 → 22,1 | para | 218 475.634F | 68.1 | 1.57 × 10-4 | 1.7 | 7 | 2600(9) | 10.7(0.1) | 2.1(0.1) | 1148 | 175 |
| 32,1 → 22,0 | para | 218 760.062F | 68.1 | 1.58 × 10-4 | 1.7 | 7 | 2582(12) | 10.7(0.1) | 2.1(0.1) | 1145 | 151 |
| 31,2 → 21,1 | ortho | 225 697.772F | 18.3 | 2.77 × 10-4 | 2.7 | 7 | 11 382(39) | 10.6(0.1) | 2.4(0.1) | 4537 | 269 |
| 41,4 → 31,3 | ortho | 281 526.919F | 30.4 | 5.87 × 10-4 | 3.8 | 9 | 15 275(49) | 10.5(0.1) | 2.4(0.1) | 6032 | 409 |
| 42,3 → 32,2 | para | 291 237.765F | 82.1 | 5.20 × 10-4 | 3.0 | 9 | 2870(19) | 10.6(0.1) | 2.1(0.1) | 1266 | 100 |
| 43,2 → 33,1 | ortho | 291 380.441F | 125.8 | 3.04 × 10-4 | 1.8 | 9 | 3815(19) | 10.6(0.1) | 2.0(0.1) | 1755 | 138 |
| 43,1 → 33,0 | ortho | 291 384.360F | 125.8 | 3.04 × 10-4 | 1.8 | 9 | 4282(21) | 10.7(0.1) | 2.3(0.1) | 1744 | 138 |
| 42,2 → 32,1 | para | 291 948.066F | 82.1 | 5.24 × 10-4 | 3.0 | 9 | 2863(19) | 10.6(0.1) | 2.2(0.1) | 1244 | 101 |
| 41,3 → 31,2 | ortho | 300 836.630F | 32.7 | 7.17 × 10-4 | 3.8 | 9 | 9897(49) | 10.7(0.1) | 2.5(0.1) | 3668 | 135 |
| 51,5 → 41,4 | ortho | 351 768.637F | 47.3 | 1.20 × 10-3 | 4.8 | 11 | 8551(88) | 10.7(0.1) | 2.4(0.1) | 3294 | 61 |
Notes. Frequencies, Eu/k, Aul, Sul, and gu from MADEX code, that fit to all rotational lines reported by Bocquet et al. (1996), Brünken et al. (2003), and Eliet et al. (2012).
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