The file Na-trans.txt contains the energy levels and Einstein \(A\)-factors for some of the stronger transitions in the sodium atom, arranged in columns: lower-state configuration, lower-state energy (cm\(^{-1}\)), upper-state configuration, lower-state energy (cm\(^{-1}\)) and \(A\)-factor (s\(^{-1}\)).
2p6.3s 0.000000 2p6.5p 35042.850000 5.31e+05
2p6.3s 0.000000 2p6.4p 30272.580000 2.73e+06
2p6.3p 16956.170250 2p6.5d 37036.772000 4.88e+06
2p6.3p 16956.170250 2p6.6s 36372.618000 2.27e+06
2p6.3p 16956.170250 2p6.4d 34548.764000 1.21e+07
2p6.3s 0.000000 2p6.3p 16956.170250 6.14e+07
2p6.3p 16956.170250 2p6.5s 33200.673000 4.98e+06
2p6.3p 16956.170250 2p6.3d 29172.887000 5.14e+07
2p6.4s 25739.999000 2p6.5p 35042.850000 7.24e+05
2p6.3p 16956.170250 2p6.4s 25739.999000 1.76e+07
2p6.3d 29172.887000 2p6.5f 37057.650000 4.38e+06
2p6.4p 30272.580000 2p6.5d 37036.772000 2.61e+06
2p6.4p 30272.580000 2p6.6s 36372.618000 1.17e+06
2p6.3d 29172.887000 2p6.5p 35042.850000 5.65e+03
2p6.3d 29172.887000 2p6.4f 34586.920000 1.31e+07
2p6.4s 25739.999000 2p6.4p 30272.580000 6.62e+06
2p6.4p 30272.580000 2p6.4d 34548.764000 7.01e+06
2p6.4p 30272.580000 2p6.5s 33200.673000 3.60e+06
2p6.4d 34548.764000 2p6.5f 37057.650000 2.42e+06
2p6.4f 34586.920000 2p6.5d 37036.772000 2.74e+03
2p6.5p 35042.850000 2p6.5d 37036.772000 1.69e+06
2p6.5s 33200.673000 2p6.5p 35042.850000 1.42e+06
2p6.5p 35042.850000 2p6.6s 36372.618000 1.07e+06
2p6.3d 29172.887000 2p6.4p 30272.580000 1.57e+05
2p6.4d 34548.764000 2p6.5p 35042.850000 6.16e+04