Migdalek, J. and Baylis, W.E. 1986.  Can. J. Phys. 65, 1612-1619.

   224.3034 +0.124 39.01       0.000  0.0 5s2 a1S      44568.640  1.0 5s5p y1P    9.03 -5.96 -7.66MB   0 0  0 0.000  0 0.000                        0  998     0
   311.2029 -1.889 39.01       0.000  0.0 5s2 a1S      32124.054  1.0 4d5p y3P    8.64 -6.18 -7.75MB   0 0  0 0.000  0 0.000                        0 1496     0