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| Constant | Laboratorya | This work |
| A (MHz) | 25963.54(166) | 25961.178(785) |
| B (MHz) | 2616.375797(314) | 2616.376200(221) |
| C (MHz) | 2412.573364(286) | 2412.573306(194) |
| ΔJ (kHz) | 1.15462(391) | 1.15734(112) |
| ΔJK (kHz) | -85.5217(356) | -85.4904(279) |
| δJ (kHz) | 0.28161(457) | 0.28598(132) |
| Number of lines | 14 | 33 |
| σ(kHz) | 1.0 | 8.5 |
| Jmax, Kamax | 5, 2 | 10,3 |
| νmax (GHz) | 25.144 | 49.218 |
Notes.
Laboratory frequencies from McCarthy et al. (2020).
