Table 2: Comparison of level energies (keV) for the n=2 complex of Fe  XXIV (see approximation key in Table 1). Experimental values from Shirai et al. (2000).
i State Expt AST1 AST2 AST3 HFR1 HFR2 HFR3 BPR1 SAF
1 ${\rm 1s}^2{\rm 2s}\ ^2{\rm S}_{1/2}$ 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
2 ${\rm 1s}^2{\rm 2p}\ ^2{\rm P}^{0}_{1/2}$ 0.04860 0.04801 0.04928 0.04778 0.04843 0.04850 0.04860   0.04854
3 ${\rm 1s}^2{\rm 2p}\ ^2{\rm P}^{0}_{3/2}$ 0.06457 0.06696 0.06689 0.06498 0.06446 0.06454 0.06457   0.06453
4 ${\rm 1s}{\rm 2s}^2\ ^2{\rm S}_{1/2}$ 6.6004 6.6099 6.6070 6.6003 6.6051 6.6018 6.6004 6.6072 6.6011
5 ${\rm 1s}(^2{\rm S}){\rm 2s2p}(^3{\rm P}^{0})\ ^4{\rm P}^{0}_{1/2}$ 6.6137 6.6202 6.6189 6.6131 6.6175 6.6129 6.6131 6.6177 6.6135
6 ${\rm 1s}(^2{\rm S}){\rm 2s2p}(^3{\rm P}^{0})\ ^4{\rm P}^{0}_{3/2}$ 6.6167 6.6253 6.6227 6.6169 6.6221 6.6178 6.6173 6.6230 6.6171
7 ${\rm 1s}(^2{\rm S}){\rm 2s2p}(^3{\rm P}^{0})\ ^4{\rm P}^{0}_{5/2}$   6.6376 6.6342 6.6285 6.6330 6.6295 6.6265   6.6283
8 ${\rm 1s}(^2{\rm S}){\rm 2s2p}(^3{\rm P}^{0})\ ^2{\rm P}^{0}_{1/2}$ 6.6535 6.6624 6.6598 6.6525 6.6567 6.6538 6.6537 6.6605 6.6534
9 ${\rm 1s}(^2{\rm S}){\rm 2s2p}(^3{\rm P}^{0})\ ^2{\rm P}^{0}_{3/2}$ 6.6619 6.6732 6.6697 6.6623 6.6665 6.6641 6.6618 6.6708 6.6624
10 ${\rm 1s}(^2{\rm S}){\rm 2p}^2(^3{\rm P})\ ^4{\rm P}_{1/2}$ 6.6710 6.6781 6.6770 6.6706 6.6753 6.6709 6.6708 6.6764 6.6717
11 ${\rm 1s}(^2{\rm S}){\rm 2s2p}(^1{\rm P}^{0})\ ^2{\rm P}^{0}_{1/2}$ 6.6764 6.6866 6.6841 6.6764 6.6814 6.6784 6.6766 6.6831 6.6765
12 ${\rm 1s}(^2{\rm S}){\rm 2s2p}(^1{\rm P}^{0})\ ^2{\rm P}^{0}_{3/2}$ 6.6792 6.6896 6.6867 6.6791 6.6839 6.6812 6.6790 6.6869 6.6795
13 ${\rm 1s}(^2{\rm S}){\rm 2p}^2(^3{\rm P})\ ^4{\rm P}_{3/2}$ 6.6793 6.6868 6.6855 6.6792 6.6829 6.6790 6.6786 6.6853 6.6798
14 ${\rm 1s}(^2{\rm S}){\rm 2p}^2(^3{\rm P})\ ^4{\rm P}_{5/2}$ 6.6850 6.6946 6.6917 6.6850 6.6900 6.6865 6.6857 6.6932 6.6856
15 ${\rm 1s}(^2{\rm S}){\rm 2p}^2(^1{\rm D})\ ^2{\rm D}_{3/2}$ 6.7027 6.7137 6.7118 6.7027 6.7082 6.7050 6.7029 6.7112 6.7042
16 ${\rm 1s}(^2{\rm S}){\rm 2p}^2(^3{\rm P})\ ^2{\rm P}_{1/2}$ 6.7046 6.7159 6.7128 6.7041 6.7099 6.7068 6.7048 6.7141 6.7052
17 ${\rm 1s}(^2{\rm S}){\rm 2p}^2(^1{\rm D})\ ^2{\rm D}_{5/2}$ 6.7090 6.7211 6.7176 6.7089 6.7147 6.7120 6.7096 6.7189 6.7097
18 ${\rm 1s}(^2{\rm S}){\rm 2p}^2(^3{\rm P})\ ^2{\rm P}_{3/2}$ 6.7224 6.7349 6.7315 6.7225 6.7268 6.7247 6.7219 6.7329 6.7230
19 ${\rm 1s}(^2{\rm S}){\rm 2p}^2(^1{\rm S})\ ^2{\rm S}_{1/2}$ 6.7415 6.7541 6.7514 6.7414 6.7468 6.7448 6.7412 6.7519 6.7428


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