Table 2: Pure rotational H₂ line parameters: central wavelength, energy of the upper level (in Kelvin), Einstein A-coefficient. From Thi et al. (2001).
transition Wavelength ( $\mu\mbox{m}$ ) $E_{\rm up}$ (K) A-coefficient (s^-1)

S(0) $2\rightarrow 0$
28.218 509.88 $2.94\times 10^{-11}$

S(1) $3\rightarrow 1$ 17.035 1015.12 $4.76\times 10^{-10}$

S(2) $4\rightarrow 2$ 12.278 1814.43 $2.76\times 10^{-9}$

S(3) $5\rightarrow 3$ 9.662 2503.82 $9.84\times 10^{-9}$

**Table 2:** Pure rotational H₂ line parameters: central wavelength, energy of the upper level (in Kelvin), Einstein A-coefficient. From Thi et al. (2001).
transition	Wavelength ( $\mu\mbox{m}$ )	$E_{\rm up}$ (K)	A-coefficient (s^-1)
S(0) $2\rightarrow 0$	28.218	509.88	$2.94\times 10^{-11}$
S(1) $3\rightarrow 1$	17.035	1015.12	$4.76\times 10^{-10}$
S(2) $4\rightarrow 2$	12.278	1814.43	$2.76\times 10^{-9}$
S(3) $5\rightarrow 3$	9.662	2503.82	$9.84\times 10^{-9}$

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