| Element | Intensity | Wavelength (nm) in air |
Spectrum | Levels Odd J Even J |
|||
| ThI-II | 17 | 513.4746 | I | 22 338 | 3 | 2 869 | 3 |
| ThI-II | 12 | 514.3267 | II | 21 297 | 5/2 | 1 859 | 3/2 |
| ThI-II | 34 | 514.3917 | I | 10 414 | 4 | 29 849 | 4 |
| ThI-II | 61 | 515.1612 | I | 23 093 | 2 | 3 687 | 2 |
| ThI-II | 83 | 515.4243 | I | 7 795 | 4 | 27 191 | 5 |
| ThI-II | 154 | 515.8604 | I | 22 248 | 2 | 2 869 | 3 |
| ThI-II | 12 | 516.0693 | II | 23 518 | 7/2 | 4 146 | 7/2 |
| ThI-II | 10 | 516.0730 | I | 26 651 | 2 | 7 280 | 2 |
| ThI-II | 23 | 516.1540 | I | 8 243 | 2 | 27 612 | 3 |
| ThI-II | 36 | 516.3458 | I | 23 049 | 1 | 3 687 | 2 |
| ThI-II | 67 | 517.6961 | I | 11 197 | 5 | 30 508 | 5 |
| ThI-II | 12 | 518.7337 | I | 22 141 | 3 | 2 869 | 3 |
| ThI-II | 21 | 519.4458 | I | 29 050 | 5 | 9 804 | 5 |
| ThI-II | 50 | 519.5814 | I | 24 202 | 4 | 4 961 | 4 |
| ThI-II | 36 | 519.8800 | I | 10 526 | 3 | 29 756 | 4 |
| ThI-II | 95 | 519.9164 | I | 23 093 | 2 | 3 865 | 1 |
| ThI-II | 17 | 519.9327 | I | 26 508 | 3 | 7 280 | 2 |
| ThI-II | 14 | 520.9725 | I | 22 877 | 1 | 3 687 | 2 |
| ThI-II | 71 | 521.1231 | I | 23 049 | 1 | 3 865 | 1 |
| ThI-II | 26 | 521.3349 | I | 7 795 | 4 | 26 971 | 4 |
| ThI-II | 11 | 521.6597 | Il | 20 686 | 5/2 | 1 521 | 5/2 |
| ThI-II | 51 | 521.9110 | I | 27 266 | 4 | 8 111 | 4 |
| ThI-II | 10 | 522.8225 | I | 14 481 | 6 | 33 603 | 6 |
| ThI-II | 153 | 523.1160 | I | 21 668 | 1 | 2 558 | 0 |
| ThI-II | 10 | 523.3225 | II | 9 720 | 7/2 | 28 823 | 5/2 |
| ThI-II | 22 | 523.8814 | I | 26 363 | 2 | 7 280 | 2 |
| ThI-II | 21 | 523.9552 | I | 25 442 | 3 | 6 362 | 2 |
| ThI-II | 24 | 524.7655 | II | 19 050 | 3/2 | 0 | 3/2 |
| ThI-II | 89 | 525.8360 | I | 22 877 | 1 | 3 865 | 1 |
| ThI-II | 17 | 526.0104 | l | 26 508 | 3 | 7 502 | 3 |
| ThI-II | 38 | 526.6710 | l | 22 669 | 3 | 3 687 | 2 |
| ThI-II | 15 | 527.4119 | l | 23 916 | 4 | 4 961 | 4 |
| ThI-II | 13 | 527.7500 | II | 10 572 | 9/2 | 29 515 | 9/2 |
| ThI-II | 12 | 529.4397 | l | 26 384 | 4 | 7 502 | 3 |
| ThI-II | 20 | 529.6279 | l | 28 680 | 4 | 9 804 | 5 |
| ThI-II | 26 | 529.7743 | l | 27 670 | 3 | 8 800 | 4 |
| ThI-II | 15 | 529.8282 | l | 21 738 | 2 | 2 869 | 3 |
| ThI-II | 11 | 530.0523 | l | 26 363 | 2 | 7 502 | 3 |
| ThI-II | 67 | 531.2002 | l | 22 508 | 2 | 3 687 | 2 |
| ThI-II | 38 | 531.2529 | l | 24 381 | 2 | 5 563 | 1 |
| ThI-II | 24 | 531.2905 | l | 26 096 | 3 | 7 280 | 2 |
| ThI-II | 16 | 531.7494 | l | 8 243 | 2 | 27 044 | 3 |
| ThI-II | 13 | 532.6277 | l | 11 241 | 3 | 30 011 | 3 |
| ThI-II | 55 | 532.6976 | l | 26 878 | 3 | 8 111 | 4 |
| ThI-II | 114 | 534.3581 | l | 22 396 | 1 | 3 687 | 2 |
| ThI-II | 19 | 535.1127 | l | 15 618 | 3 | 34 301 | 4 |
| ThI-II | 17 | 536.0150 | l | 22 338 | 3 | 3 687 | 2 |
| ThI-II | 10 | 537.2703 | l | 11 241 | 3 | 29 849 | 4 |
| ThI-II | 18 | 537.4822 | l | 22 465 | 0 | 3 865 | 1 |
| ThI-II | 10 | 537.6781 | l | 11 241 | 3 | 29 835 | 3 |
| ThI-II | 24 | 537.8836 | l | 14 481 | 6 | 33 068 | 6 |
| ThI-II | 31 | 537.9111 | l | 7 795 | 4 | 26 380 | 5 |
| ThI-II | 45 | 538.6611 | l | 23 521 | 3 | 4 961 | 4 |
| ThI-II | 24 | 539.0426 | l | 26 048 | 4 | 7 502 | 3 |
| ThI-II | 13 | 539.0467 | II | 6 700 | 9/2 | 25 246 | 9/2 |
| ThI-II | 11 | 539.2573 | II | 22 685 | 7/2 | 4 146 | 7/2 |
| ThI-II | 42 | 539.4761 | l | 22 396 | 1 | 3 865 | 1 |
| ThI-II | 11 | 539.8702 | l | 24 880 | 1 | 6 362 | 2 |
| ThI-II | 16 | 539.8922 | l | 16 783 | 4 | 35 300 | 5 |
| ThI-II | 17 | 539.9175 | l | 28 321 | 5 | 9 804 | 5 |
| ThI-II | 56 | 540.7654 | l | 11 197 | 5 | 29 684 | 5 |
| ThI-II | 39 | 541.0769 | l | 24 838 | 1 | 6 362 | 2 |
| ThI-II | 15 | 541.5523 | l | 7 795 | 4 | 26 255 | 4 |
| ThI-II | 94 | 541.7486 | l | 22 141 | 3 | 3 687 | 2 |
| ThI-II | 28 | 542.4008 | l | 10 414 | 4 | 28 845 | 4 |
| ThI-II | 22 | 542.5678 | II | 9 585 | 5/2 | 28 011 | 3/2 |
| ThI-II | 30 | 543.1112 | l | 24 769 | 3 | 6 362 | 2 |
| ThI-II | 15 | 543.4151 | l | 26 508 | 3 | 8 111 | 4 |
| ThI-II | 11 | 544.9479 | II | 14 275 | 9/2 | 32 620 | 11/2 |
| ThI-II | 44 | 545.2219 | l | 28 140 | 4 | 9 804 | 5 |
| ThI-II | 14 | 546.4206 | l | 21 165 | 3 | 2 869 | 3 |
| ThI-II | 13 | 547.0759 | l | 26 384 | 4 | 8 111 | 4 |
| ThI-II | 27 | 549.2644 | l | 25 703 | 2 | 7 502 | 3 |
| ThI-II | 13 | 549.4331 | l | 26 995 | 3 | 8 800 | 4 |
| ThI-II | 20 | 549.6137 | l | 23 752 | 2 | 5 563 | 1 |
| ThI-II | 90 | 549.9255 | l | 20 737 | 1 | 2 558 | 0 |
| ThI-II | 31 | 550.4302 | l | 25 442 | 3 | 7 280 | 2 |
| ThI-II | 58 | 550.9994 | l | 27 948 | 4 | 9 804 | 5 |
| ThI-II | 31 | 551.4873 | l | 7 795 | 4 | 25 923 | 4 |
| ThI-II | 10 | 551.8989 | l | 16 346 | 4 | 34 460 | 5 |
| ThI-II | 13 | 552.4582 | l | 13 175 | 4 | 31 271 | 5 |
| ThI-II | 146 | 553.9262 | l | 27 852 | 5 | 9 804 | 5 |
| ThI-II | 29 | 553.9911 | II | 9 585 | 5/2 | 27 631 | 3/2 |
| ThI-II | 26 | 554.2890 | l | 10 526 | 3 | 28 562 | 4 |
| ThI-II | 58 | 554.8176 | l | 24 381 | 2 | 6 362 | 2 |
| ThI-II | 50 | 555.7045 | l | 26 790 | 4 | 8 800 | 4 |
| ThI-II | 75 | 555.8342 | l | 26 096 | 3 | 8 111 | 4 |
| ThI-II | 22 | 555.9891 | l | 21 668 | 1 | 3 687 | 2 |
| ThI-II | 54 | 557.1191 | l | 11 197 | 5 | 29 141 | 5 |
| ThI-II | 38 | 557.2465 | l | 25 442 | 3 | 7 502 | 3 |
| ThI-II | 112 | 557.3354 | l | 26 048 | 4 | 8 111 | 4 |
| ThI-II | 26 | 557.6205 | l | 10 414 | 4 | 28 342 | 5 |
| ThI-II | 54 | 557.9358 | l | 23 481 | 1 | 5 563 | 1 |
| ThI-II | 203 | 558.7026 | l | 22 855 | 3 | 4 961 | 4 |
| ThI-II | 53 | 559.5064 | l | 8 243 | 2 | 26 111 | 1 |
| ThI-II | 34 | 560.1603 | l | 17 847 | 2 | 0 | 2 |
| ThI-II | 13 | 560.4515 | II | 17 837 | 1/2 | 0 | 3/2 |
| ThI-II | 10 | 560.6386 | l | 10 526 | 3 | 28 358 | 3 |
| ThI-II | 14 | 561.0104 | l | 24 182 | 2 | 6 362 | 2 |
| ThI-II | 21 | 561.0231 | I | 25 321 | 3 | 7 502 | 3 |
| ThI-II | 31 | 561.0681 | I | 29 419 | 2 | 11 601 | 1 |
| ThI-II | 26 | 561.2068 | I | 10 414 | 4 | 28 227 | 4 |
| ThI-II | 72 | 561.5320 | I | 21 668 | 1 | 3 865 | 1 |
| ThI-II | 33 | 563.9746 | II | 19 248 | 5/2 | 1 521 | 5/2 |
| ThI-II | 11 | 564.5669 | I | 26 508 | 3 | 8 800 | 4 |
| ThI-II | 11 | 564.8991 | I | 20 566 | 4 | 2 869 | 3 |
| ThI-II | 24 | 565.7926 | I | 30 517 | 4 | 12 847 | 3 |
| ThI-II | 49 | 566.5180 | I | 8 243 | 2 | 25 890 | 2 |
| ThI-II | 10 | 566.5628 | II | 27 357 | 9/2 | 9 711 | 7/2 |
| ThI-II | 13 | 566.7128 | I | 11 241 | 3 | 28 882 | 2 |
| ThI-II | 12 | 567.4986 | I | 29 419 | 2 | 11 802 | 2 |
| ThI-II | 20 | 567.7053 | I | 7 795 | 4 | 25 405 | 4 |
| ThI-II | 12 | 568.5192 | I | 26 384 | 4 | 8 800 | 4 |
| ThI-II | 30 | 570.0918 | II | 21 682 | 7/2 | 4 146 | 7/2 |
| ThI-II | 44 | 570.7103 | II | 23 730 | 9/2 | 6 213 | 9/2 |
| ThI-II | 61 | 571.9623 | I | 24 981 | 3 | 7 502 | 3 |
| ThI-II | 276 | 572.0183 | I | 21 165 | 3 | 3 687 | 2 |
| ThI-II | 69 | 572.5389 | I | 27 266 | 4 | 9 804 | 5 |
| ThI-II | 12 | 573.2975 | II | 35 165 | 13/2 | 17 727 | 11/2 |
| ThI-II | 11 | 574.1829 | I | 17 411 | 3 | 0 | 2 |
| ThI-II | 30 | 574.8741 | I | 23 752 | 2 | 6 362 | 2 |
| ThI-II | 10 | 574.9388 | II | 19 248 | 5/2 | 1 859 | 3/2 |
| ThI-II | 41 | 575.3027 | I | 22 338 | 3 | 4 961 | 4 |
| ThI-II | 436 | 576.0551 | I | 17 354 | 1 | 0 | 2 |
| ThI-II | 28 | 576.3529 | I | 20 214 | 3 | 2 869 | 3 |
| ThI-II | 11 | 576.7779 | I | 13 175 | 4 | 30 508 | 5 |
| ThI-II | 25 | 576.8181 | I | 25 442 | 3 | 8 111 | 4 |
| ThI-II | 16 | 577.3946 | I | 22 877 | 1 | 5 563 | 1 |
| ThI-II | 38 | 578.9645 | I | 24 769 | 3 | 7 502 | 3 |
| ThI-II | 22 | 579.2430 | I | 19 817 | 1 | 2 558 | 0 |
| ThI-II | 19 | 579.6068 | I | 26 048 | 4 | 8 800 | 4 |
| ThI-II | 54 | 580.0830 | I | 20 922 | 2 | 3 687 | 2 |
| ThI-II | 145 | 580.4141 | I | 17 224 | 2 | 0 | 2 |
| ThI-II | 14 | 581.2973 | I | 10 414 | 4 | 27 612 | 3 |
| ThI-II | 15 | 581.5422 | II | 19 050 | 3/2 | 1 859 | 3/2 |
| ThI-II | 16 | 583.2371 | I | 24 421 | 3 | 7 280 | 2 |
| ThI-II | 33 | 585.2681 | I | 10 414 | 4 | 27 495 | 4 |
| ThI-II | 10 | 585.3475 | I | 19 948 | 4 | 2 869 | 3 |
| ThI-II | 20 | 585.4121 | I | 25 877 | 4 | 8 800 | 4 |
| ThI-II | 13 | 586.3718 | I | 20 737 | 1 | 3 687 | 2 |
| ThI-II | 59 | 588.5702 | I | 26 790 | 4 | 9 804 | 5 |
| ThI-II | 39 | 589.1451 | I | 10 526 | 3 | 27 495 | 4 |
| ThI-II | 10 | 589.9844 | I | 22 508 | 2 | 5 563 | 1 |
| ThI-II | 17 | 590.5571 | I | 21 890 | 3 | 4 961 | 4 |
| ThI-II | 17 | 590.8926 | I | 26 723 | 6 | 9 804 | 5 |
| ThI-II | 17 | 591.4386 | II | 9 585 | 5/2 | 26 488 | 5/2 |
| ThI-II | 66 | 591.4671 | I | 22 465 | 0 | 5 563 | 1 |
| ThI-II | 15 | 591.4714 | I | 24 182 | 2 | 7 280 | 2 |
| ThI-II | 13 | 591.8944 | I | 25 690 | 5 | 8 800 | 4 |
| ThI-II | 14 | 592.5404 | I | 20 737 | 1 | 3 865 | 1 |
| ThI-II | 10 | 592.5892 | II | 27 249 | 7/2 | 10 379 | 9/2 |
| ThI-II | 31 | 592.6232 | I | 7 795 | 4 | 24 664 | 3 |
| ThI-II | 12 | 592.9934 | I | 20 724 | 0 | 3 865 | 1 |
| ThI-II | 15 | 593.7663 | I | 11 197 | 5 | 28 034 | 5 |
| ThI-II | 21 | 593.8457 | I | 20 522 | 2 | 3 687 | 2 |
| ThI-II | 73 | 593.8825 | I | 22 396 | 1 | 5 563 | 1 |
| ThI-II | 35 | 594.4648 | I | 10 526 | 3 | 27 343 | 3 |
| ThI-II | 158 | 597.3665 | I | 20 423 | 1 | 3 687 | 2 |
| ThI-II | 85 | 597.5065 | I | 23 093 | 2 | 6 362 | 2 |
| ThI-II | 55 | 598.9045 | Il | 18 214 | 3/2 | 1 521 | 5/2 |
| ThI-II | 52 | 599.1007 | I | 23 049 | 1 | 6 362 | 2 |
| ThI-II | 121 | 599.4129 | I | 20 543 | 0 | 3 865 | 1 |
| ThI-II | 22 | 600.1203 | I | 24 769 | 3 | 8 111 | 4 |
| ThI-II | 14 | 600.5165 | I | 19 516 | 2 | 2 869 | 3 |
| ThI-II | 58 | 600.7072 | I | 25 442 | 3 | 8 800 | 4 |
| ThI-II | 25 | 601.0161 | I | 19 503 | 3 | 2 869 | 3 |
| ThI-II | 11 | 601.5422 | Il | 31 924 | 11/2 | 15 305 | 9/2 |
| ThI-II | 59 | 602.1036 | I | 7 795 | 4 | 24 399 | 3 |
| ThI-II | 13 | 603.0445 | I | 21 539 | 4 | 4 961 | 4 |
| ThI-II | 10 | 603.5192 | I | 12 114 | 2 | 28 679 | 2 |
| ThI-II | 66 | 603.7698 | I | 20 423 | 1 | 3 865 | 1 |
| ThI-II | 17 | 603.8681 | I | 25 355 | 4 | 8 800 | 4 |
| ThI-II | 11 | 604.4433 | II | 20 686 | 5/2 | 4 146 | 7/2 |
| ThI-II | 45 | 604.9051 | I | 20 214 | 3 | 3 687 | 2 |
| ThI-II | 22 | 605.3381 | I | 22 877 | 1 | 6 362 | 2 |
| ThI-II | 10 | 606.9021 | I | 23 752 | 2 | 7 280 | 2 |
| ThI-II | 16 | 607.7106 | I | 24 561 | 3 | 8 111 | 4 |
| ThI-II | 29 | 607.7873 | I | 14 481 | 6 | 30 930 | 6 |
| ThI-II | 19 | 607.8421 | I | 29 744 | 3 | 13 297 | 4 |
| ThI-II | 24 | 607.9223 | I | 10 526 | 3 | 26 971 | 4 |
| ThI-II | 22 | 608.5375 | I | 8 243 | 2 | 24 671 | 2 |
| ThI-II | 10 | 608.7262 | Il | 15 349 | 11/2 | 31 773 | 9/2 |
| ThI-II | 47 | 608.8031 | I | 8 243 | 2 | 24 664 | 3 |
| ThI-II | 10 | 609.8121 | |||||
| ThI-II | 14 | 609.9083 | Il | 26 770 | 11/2 | 10 379 | 9/2 |
| ThI-II | 22 | 610.1725 | I | 8 243 | 2 | 24 627 | 1 |
| ThI-II | 53 | 610.2595 | I | 10 414 | 4 | 26 796 | 3 |
| ThI-II | 16 | 610.4559 | I | 15 618 | 3 | 31 995 | 4 |
| ThI-II | 10 | 610.4582 | Il | 24 982 | 7/2 | 8 605 | 5/2 |
| ThI-II | 19 | 610.7534 | I | 30 572 | 6 | 14 204 | 5 |
| ThI-II | 19 | 611.2838 | Il | 18 214 | 3/2 | 1 859 | 3/2 |
| ThI-II | 11 | 611.4539 | I | 29 197 | 2 | 12 847 | 3 |
| ThI-II | 10 | 611.6166 | I | 14 206 | 4 | 30 552 | 4 |
| ThI-II | 13 | 612.0557 | II | 14 545 | 5/2 | 30 879 | 7/2 |
| ThI-II | 19 | 612.1408 | I | 32 885 | 6 | 16 554 | 6 |
| ThI-II | 18 | 622.4481 | I | 23 603 | 2 | 7 280 | 2 |
| ThI-II | 105 | 615.1993 | I | 23 752 | 2 | 7 502 | 3 |
| ThI-II | 25 | 615.4068 | I | 14 481 | 6 | 30 726 | 7 |
| ThI-II | 10 | 615.4516 | I | 26 048 | 4 | 9 804 | 5 |
| ThI-II | 22 | 615.5581 | I | 23 521 | 3 | 7 280 | 2 |