Accurate rest frequencies for the submillimetre-wave lines of the -containing isotopologues of and

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Table 2:

Rotational transition frequencies and spectroscopic constants of ¹⁵NNH⁺.
J'	J	Observed	Obs.-calc.	Uncert.^a
		(MHz)	(kHz)	(kHz)
1	0	90 263.8330^b	-2.3	10.
3	2	270 783.5870	8.1	20.
4	3	361 035.5242	0.7	5.
5	4	451 279.5385	-2.4	5.
6	5	541 513.6509	1.5	5.
7	6	631 735.8673	0.2	5.
8	7	721 944.2091	-3.1	15.
rms $_{\rm res}$ ^c = 3.6 kHz
$\sigma^{d} = 0.350$
Constant^e			Correlation matrix
B₀ / MHz		45 132.08283(23)	1.000
D_J / kHz		82.5747(28)	-0.943	1.000

^a Uncertainties estimated as explained in the text.
^b From Gudeman (1982).
^c Rms error of residuals: $\sqrt{\frac{\sum {\rm residual}^2}{{N\;{\rm observations}}}}$ .
^d Fit standard deviation: $\sqrt{\frac{\sum {\rm (residual/uncert.)}^2}{{\rm degrees\;of\;freedom}}}$ .
^e Standard errors are reported in parentheses in units of the last quoted digits.

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