The experimental lines are from
(1) M. J. Travers, M. C. McCarthy, P. Kalmus, C. A. Gottlieb,
and P. Thaddeus,
1996, Astrophys. J. 469, L65.
Values for the partition function were extrapolated
for T ≥ 225 K.
The 14N hyperfine splitting was not considered
because it was not resolved in the laboratory, and it is
unlikely to be resolved in the ISM.
The dipole moment is from an ab initio calculation
from (2) P. Botschwina, unpublished;
cited in (3) M. B. Bell et al.;
1997, Astrophys. J. 483, L61.
The input, and hence the predicted frequencies and
uncertainties, are identical to those in the JPL catalog entry
created by the same author.
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