| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 273.64 | 1607.92 | 178.87 | 1040.37 | 19.04 | 106.06 | 37.87 | 296.04 | 0.6473 | -395.3 | -282.4 | |
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| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 0.95 | 0.00 | 0.67 | 19.53 | 111.60 | 43.41 | 294.40 | 0.7136 | -370.0 | -304.0 | |
| 0.00 | 1.21 | 0.00 | 0.80 | 15.91 | 108.75 | 40.56 | 290.28 | 0.6689 | 588.0 | 379.0 | |
| 98.64 | 473.58 | 66.46 | 320.06 | 18.92 | 108.86 | 40.67 | 294.57 | 0.6802 | -1112.6 | -222.2 | |
| 4.05 | -3.00 | 2.75 | -3.00 | 19.85 | 109.06 | 40.87 | 295.79 | 0.6859 | -415.0 | 999999 | |
| 0.00 | 1.98 | 0.00 | 1.31 | 16.67 | 108.12 | 39.93 | 291.60 | 0.6637 | -685.0 | -573.5 | |
| 1.12 | -3.00 | 0.76 | -3.00 | 20.04 | 108.87 | 40.68 | 296.14 | 0.6845 | -466.9 | 999999 | |
| 0.00 | 1.38 | 0.00 | 0.95 | 21.56 | 109.37 | 41.18 | 298.02 | 0.6961 | 730.0 | 558.6 | |
| 0.00 | 1.21 | 0.00 | 0.79 | 15.96 | 107.54 | 39.35 | 290.75 | 0.6543 | -624.0 | -525.0 | |
| 1.21 | 36.70 | 0.80 | 24.16 | 17.69 | 107.86 | 39.67 | 293.19 | 0.6640 | -581.1 | -465.4 | |
| 7.24 | -9.00 | 4.76 | -9.00 | 17.58 | 107.63 | 39.44 | 293.12 | 0.6607 | -838.2 | 999999 | |
| 0.00 | 2.84 | 0.00 | 1.92 | 20.37 | 108.35 | 40.16 | 296.82 | 0.6798 | -605.0 | -450.3 | |
| 0.00 | 1.12 | 0.00 | 0.73 | 17.17 | 107.16 | 38.97 | 292.69 | 0.6536 | -653.0 | -538.8 | |
| 0.00 | 1.64 | 0.00 | 1.10 | 20.76 | 108.14 | 39.95 | 297.45 | 0.6789 | 433.0 | 367.9 | |
| 3.88 | 6.63 | 2.54 | 4.34 | 17.96 | 107.20 | 39.01 | 293.85 | 0.6570 | -745.4 | -591.2 | |
| 0.00 | 1.38 | 0.00 | 0.92 | 20.24 | 107.85 | 39.66 | 296.85 | 0.6735 | -561.0 | -371.4 | |
| 0.00 | 0.86 | 0.00 | 0.58 | 20.73 | 107.96 | 39.77 | 297.49 | 0.6769 | 553.0 | 329.7 | |
| 0.00 | 2.07 | 0.00 | 1.36 | 18.33 | 107.26 | 39.07 | 294.36 | 0.6591 | -819.0 | -721.8 | |
| 9.39 | 661.04 | 6.16 | 421.63 | 18.65 | 107.06 | 38.87 | 294.91 | 0.6580 | -741.1 | -537.5 | |
| 0.00 | 1.21 | 0.00 | 0.81 | 20.93 | 107.74 | 39.55 | 297.87 | 0.6751 | -352.0 | -215.7 | |
| 0.00 | 1.03 | 0.00 | 0.69 | 20.63 | 107.44 | 39.25 | 297.58 | 0.6704 | -663.0 | -485.6 | |
| 7.67 | -18.00 | 4.98 | -18.00 | 18.17 | 106.50 | 38.31 | 294.45 | 0.6493 | -915.7 | 999999 | |
| 9.05 | -18.00 | 5.91 | -18.00 | 19.29 | 106.55 | 38.36 | 296.06 | 0.6545 | -896.6 | 999999 | |
| 3.88 | 146.11 | 2.57 | 96.11 | 20.86 | 106.93 | 38.74 | 298.15 | 0.6656 | -798.2 | -300.8 | |
| 14.82 | -18.00 | 9.59 | -18.00 | 18.31 | 106.13 | 37.94 | 294.81 | 0.6454 | -1003.9 | 999999 | |
| 3.88 | 7.32 | 2.55 | 4.82 | 20.49 | 106.70 | 38.51 | 297.74 | 0.6613 | -815.9 | -632.7 | |
| 4.31 | -23.00 | 2.84 | -23.00 | 20.96 | 106.68 | 38.49 | 298.42 | 0.6632 | -686.3 | 999999 | |
| 7.06 | -18.00 | 4.60 | -18.00 | 19.58 | 106.15 | 37.96 | 296.67 | 0.6509 | -897.7 | 999999 | |
| 1.81 | -23.00 | 1.19 | -23.00 | 20.63 | 106.38 | 38.19 | 298.09 | 0.6582 | -822.8 | 999999 | |
| 4.65 | -23.00 | 3.07 | -23.00 | 21.35 | 106.55 | 38.36 | 299.02 | 0.6634 | -562.3 | 999999 | |
| 27.57 | -18.00 | 17.69 | -18.00 | 18.33 | 105.54 | 37.35 | 295.11 | 0.6384 | -1102.8 | 999999 | |
| 3.10 | -23.00 | 2.03 | -23.00 | 20.80 | 106.10 | 37.91 | 298.46 | 0.6557 | -643.4 | 999999 | |
| 0.00 | 1.81 | 0.00 | 1.14 | 16.02 | 104.85 | 36.66 | 291.88 | 0.6207 | 647.0 | 519.7 | |
| 0.00 | 0.78 | 0.00 | 0.49 | 15.75 | 104.71 | 36.52 | 291.51 | 0.6180 | 656.0 | 458.6 | |
| 6.12 | -23.00 | 3.98 | -23.00 | 20.84 | 105.71 | 37.52 | 298.72 | 0.6514 | -1074.5 | 999999 | |
| 8.79 | -18.00 | 5.60 | -18.00 | 18.29 | 105.02 | 36.83 | 295.28 | 0.6318 | -1124.8 | 999999 | |
| 1.46 | -18.00 | 0.93 | -18.00 | 17.80 | 104.79 | 36.60 | 294.65 | 0.6269 | -1255.9 | 999999 | |
| 0.00 | 2.67 | 0.00 | 1.67 | 16.07 | 104.32 | 36.13 | 292.18 | 0.6141 | 676.0 | 429.4 | |
| 0.00 | 2.07 | 0.00 | 1.33 | 19.71 | 105.12 | 36.93 | 297.36 | 0.6391 | -624.0 | -512.1 | |
| 2.41 | -18.00 | 1.53 | -18.00 | 18.18 | 104.64 | 36.45 | 295.29 | 0.6267 | -1221.6 | 999999 | |
| 1.21 | -18.00 | 0.77 | -18.00 | 18.36 | 104.65 | 36.46 | 295.57 | 0.6275 | -857.9 | 999999 | |
| 0.00 | 1.55 | 0.00 | 0.99 | 19.71 | 104.92 | 36.73 | 297.47 | 0.6368 | -180.0 | -179.4 | |
| 1.55 | 9.91 | 0.97 | 6.18 | 16.63 | 104.06 | 35.87 | 293.17 | 0.6129 | -533.1 | -402.5 | |
| 0.86 | -18.00 | 0.54 | -18.00 | 18.31 | 104.40 | 36.21 | 295.61 | 0.6243 | -1057.2 | 999999 | |
| 0.95 | -18.00 | 0.60 | -18.00 | 18.28 | 104.28 | 36.09 | 295.63 | 0.6226 | -1033.0 | 999999 | |
| 1.03 | -18.00 | 0.66 | -18.00 | 19.39 | 104.36 | 36.17 | 297.27 | 0.6287 | -930.2 | 999999 | |
| 0.34 | -42.00 | 0.21 | -42.00 | 16.88 | 103.73 | 35.54 | 293.73 | 0.6098 | -816.0 | 999999 | |
| 0.00 | 1.90 | 0.00 | 1.18 | 16.77 | 103.51 | 35.32 | 293.64 | 0.6066 | -253.0 | -232.1 | |
| 2.50 | -18.00 | 1.58 | -18.00 | 19.22 | 103.97 | 35.78 | 297.21 | 0.6231 | -1025.0 | 999999 | |
| 0.00 | 2.41 | 0.00 | 1.45 | 13.85 | 101.47 | 33.28 | 289.77 | 0.5684 | 468.0 | 439.2 | |
| 0.00 | 1.38 | 0.00 | 0.88 | 22.05 | 103.25 | 35.06 | 301.83 | 0.6289 | -730.0 | -615.6 | |
| 0.00 | 2.41 | 0.00 | 1.53 | 21.80 | 103.18 | 34.99 | 301.51 | 0.6268 | -868.0 | -667.3 | |
| 0.00 | 2.41 | 0.00 | 1.52 | 21.56 | 102.95 | 34.76 | 301.28 | 0.6228 | -872.0 | -694.8 | |
| 0.00 | 1.98 | 0.00 | 1.24 | 20.79 | 102.63 | 34.44 | 300.32 | 0.6148 | 540.0 | 473.7 | |
| 1.90 | 3.62 | 1.20 | 2.28 | 21.75 | 102.85 | 34.66 | 301.63 | 0.6227 | -913.0 | -702.9 | |
| 2.24 | 26.79 | 1.40 | 16.78 | 20.20 | 102.40 | 34.21 | 299.57 | 0.6090 | 721.5 | 310.0 | |
| 0.00 | 1.98 | 0.00 | 1.22 | 18.45 | 101.99 | 33.80 | 297.08 | 0.5949 | 527.0 | 394.3 | |
| 1.12 | 5.17 | 0.70 | 3.22 | 20.39 | 102.22 | 34.03 | 299.97 | 0.6078 | 816.3 | 699.7 | |
| 0.43 | -57.00 | 0.27 | -57.00 | 20.58 | 102.27 | 34.08 | 300.22 | 0.6094 | 745.4 | 999999 | |
| 0.00 | 10.17 | 0.00 | 6.24 | 18.76 | 101.72 | 33.53 | 297.74 | 0.5931 | -312.0 | -362.3 | |
| 9.39 | 20.59 | 5.91 | 12.96 | 21.98 | 102.49 | 34.30 | 302.19 | 0.6197 | -935.3 | -696.0 | |
| 0.00 | 0.26 | 0.00 | 0.16 | 15.41 | 100.93 | 32.74 | 292.69 | 0.5673 | 456.0 | 403.0 | |
| 0.00 | 2.15 | 0.00 | 1.34 | 20.62 | 101.97 | 33.78 | 300.46 | 0.6060 | 707.0 | 631.8 | |
| 0.00 | 2.33 | 0.00 | 1.44 | 20.22 | 101.87 | 33.68 | 299.91 | 0.6026 | 643.0 | 406.4 | |
| 0.00 | 1.03 | 0.00 | 0.64 | 19.82 | 101.74 | 33.55 | 299.37 | 0.5988 | -447.0 | -377.3 | |
| 0.00 | 1.38 | 0.00 | 0.85 | 19.39 | 101.48 | 33.29 | 298.86 | 0.5935 | -295.0 | -492.8 | |
| 0.00 | 0.60 | 0.00 | 0.37 | 18.07 | 101.08 | 32.89 | 297.00 | 0.5816 | 507.0 | 365.3 | |
| 0.00 | 1.21 | 0.00 | 0.74 | 19.92 | 101.31 | 33.12 | 299.80 | 0.5942 | 216.0 | 70.6 | |
| 0.00 | 2.07 | 0.00 | 1.26 | 19.31 | 101.13 | 32.94 | 298.95 | 0.5886 | 404.0 | 326.7 | |
| 0.00 | 0.95 | 0.00 | 0.58 | 18.69 | 100.95 | 32.76 | 298.08 | 0.5832 | 358.0 | 292.9 | |
| 2.41 | 4.22 | 1.47 | 2.57 | 19.03 | 100.99 | 32.80 | 298.60 | 0.5855 | 461.6 | 416.0 | |
| 0.00 | 0.86 | 0.00 | 0.52 | 17.57 | 100.57 | 32.38 | 296.48 | 0.5725 | 517.0 | 551.9 | |
| 0.00 | 0.78 | 0.00 | 0.47 | 17.41 | 100.50 | 32.31 | 296.27 | 0.5709 | 583.0 | 389.7 | |
| 0.00 | 1.03 | 0.00 | 0.62 | 17.94 | 100.46 | 32.27 | 297.15 | 0.5730 | 373.0 | 381.0 | |
| 0.00 | 2.41 | 0.00 | 1.48 | 19.97 | 100.87 | 32.68 | 300.15 | 0.5890 | 503.0 | 390.1 | |
| 0.00 | 4.05 | 0.00 | 2.45 | 18.40 | 100.52 | 32.33 | 297.86 | 0.5762 | 603.0 | 527.0 | |
| 0.00 | 1.38 | 0.00 | 0.83 | 18.68 | 100.43 | 32.24 | 298.37 | 0.5765 | 733.0 | 538.9 | |
| 1.90 | 2.50 | 1.14 | 1.51 | 18.19 | 100.29 | 32.10 | 297.66 | 0.5722 | 731.3 | 565.0 | |
| 0.00 | 1.21 | 0.00 | 0.73 | 19.05 | 100.47 | 32.28 | 298.94 | 0.5791 | 445.0 | 473.6 | |
| 0.00 | 1.12 | 0.00 | 0.68 | 18.83 | 100.42 | 32.23 | 298.62 | 0.5773 | 666.0 | 539.3 | |
| 0.00 | 1.29 | 0.00 | 0.79 | 19.88 | 100.55 | 32.36 | 300.22 | 0.5847 | 565.0 | 452.9 | |
| 0.00 | 2.67 | 0.00 | 1.63 | 20.57 | 100.56 | 32.37 | 301.28 | 0.5887 | 633.0 | 523.2 | |
| 0.00 | 2.07 | 0.00 | 1.25 | 19.27 | 100.22 | 32.03 | 299.46 | 0.5772 | 707.0 | 613.1 | |
| 0.00 | 1.03 | 0.00 | 0.63 | 19.86 | 100.35 | 32.16 | 300.30 | 0.5822 | 619.0 | 536.2 | |
| 0.00 | 0.26 | 0.00 | 0.15 | 16.89 | 99.70 | 31.51 | 295.85 | 0.5579 | 682.0 | 606.0 | |
| 0.00 | 1.55 | 0.00 | 0.94 | 19.58 | 100.18 | 31.99 | 299.98 | 0.5784 | 808.0 | 653.6 | |
| 0.00 | 1.46 | 0.00 | 0.88 | 19.10 | 99.96 | 31.77 | 299.34 | 0.5730 | 814.0 | 699.2 | |
| 0.00 | 1.03 | 0.00 | 0.62 | 19.47 | 100.01 | 31.82 | 299.91 | 0.5756 | 780.0 | 685.8 | |
| 0.78 | 2.15 | 0.48 | 1.33 | 22.32 | 100.66 | 32.47 | 303.89 | 0.6005 | 499.7 | 309.9 | |
| 0.00 | 1.55 | 0.00 | 0.95 | 20.74 | 100.22 | 32.03 | 301.77 | 0.5856 | 736.0 | 622.2 | |
| 0.00 | 1.03 | 0.00 | 0.62 | 18.36 | 99.66 | 31.47 | 298.34 | 0.5651 | 810.0 | 727.8 | |
| 0.00 | 3.96 | 0.00 | 2.37 | 18.09 | 99.57 | 31.38 | 297.94 | 0.5625 | 439.0 | 604.2 | |
| 0.00 | 1.55 | 0.00 | 0.92 | 17.48 | 99.41 | 31.22 | 297.02 | 0.5572 | 709.0 | 603.9 | |
| 0.00 | 1.21 | 0.00 | 0.72 | 18.64 | 99.61 | 31.42 | 298.83 | 0.5660 | 860.0 | 727.7 | |
| 0.00 | 0.95 | 0.00 | 0.59 | 22.45 | 100.50 | 32.31 | 304.20 | 0.5995 | 465.0 | 319.8 | |
| 0.00 | 1.12 | 0.00 | 0.70 | 24.00 | 100.89 | 32.70 | 306.19 | 0.6138 | 464.0 | 364.2 | |
| 0.00 | 1.21 | 0.00 | 0.73 | 20.62 | 100.01 | 31.82 | 301.73 | 0.5823 | 506.0 | 498.4 | |
| 1.90 | 11.37 | 1.16 | 6.98 | 21.96 | 100.15 | 31.96 | 303.70 | 0.5922 | 809.2 | 569.9 | |
| 0.00 | 0.78 | 0.00 | 0.47 | 21.65 | 100.07 | 31.88 | 303.28 | 0.5894 | 531.0 | 486.1 | |
| 0.00 | 1.90 | 0.00 | 1.13 | 17.94 | 99.21 | 31.02 | 297.93 | 0.5571 | 823.0 | 758.8 | |
| 0.00 | 2.15 | 0.00 | 1.30 | 19.48 | 99.53 | 31.34 | 300.24 | 0.5698 | 881.0 | 671.3 | |
| 0.00 | 1.46 | 0.00 | 0.87 | 18.40 | 99.30 | 31.11 | 298.64 | 0.5608 | 726.0 | 625.2 | |
| 0.00 | 0.34 | 0.00 | 0.21 | 18.07 | 99.20 | 31.01 | 298.15 | 0.5576 | 767.0 | 711.8 | |
| 0.00 | 1.21 | 0.00 | 0.72 | 19.30 | 99.38 | 31.19 | 300.05 | 0.5668 | 728.0 | 503.6 | |
| 0.00 | 1.46 | 0.00 | 0.89 | 21.65 | 99.84 | 31.65 | 303.45 | 0.5868 | 805.0 | 703.2 | |
| 0.00 | 1.12 | 0.00 | 0.67 | 18.07 | 99.02 | 30.83 | 298.27 | 0.5553 | 898.0 | 796.5 | |
| 0.00 | 1.72 | 0.00 | 1.07 | 24.08 | 100.33 | 32.14 | 306.71 | 0.6081 | 571.0 | 490.2 | |
| 0.00 | 2.84 | 0.00 | 1.70 | 19.22 | 99.03 | 30.84 | 300.15 | 0.5620 | 908.0 | 641.0 | |
| 0.00 | 1.29 | 0.00 | 0.77 | 18.05 | 98.76 | 30.57 | 298.40 | 0.5519 | 850.0 | 673.9 | |
| 0.00 | 0.86 | 0.00 | 0.52 | 19.50 | 99.01 | 30.82 | 300.62 | 0.5635 | 817.0 | 646.3 | |
| 0.00 | 0.60 | 0.00 | 0.36 | 18.02 | 98.57 | 30.38 | 298.49 | 0.5493 | 778.0 | 603.7 | |
| 0.00 | 3.19 | 0.00 | 1.88 | 18.04 | 98.21 | 30.02 | 298.75 | 0.5448 | 739.0 | 743.2 | |
| 0.00 | 0.86 | 0.00 | 0.51 | 18.65 | 98.29 | 30.10 | 299.72 | 0.5494 | 785.0 | 569.8 | |
| 6.03 | 12.75 | 3.58 | 7.57 | 19.17 | 98.36 | 30.17 | 300.55 | 0.5534 | 896.1 | 727.3 | |
| 0.00 | 2.84 | 0.00 | 1.67 | 17.87 | 97.68 | 29.49 | 298.83 | 0.5369 | 813.0 | 707.1 | |
| 1.72 | 3.70 | 1.02 | 2.19 | 19.19 | 97.89 | 29.70 | 300.91 | 0.5476 | 925.5 | 893.3 | |
| 0.00 | 1.81 | 0.00 | 1.06 | 17.97 | 97.41 | 29.22 | 299.19 | 0.5340 | 893.0 | 688.4 | |
| 2.84 | 7.84 | 1.67 | 4.59 | 19.02 | 97.25 | 29.06 | 301.10 | 0.5384 | 920.8 | 799.6 | |
| 0.00 | 1.29 | 0.00 | 0.75 | 17.89 | 96.86 | 28.67 | 299.46 | 0.5264 | 791.0 | 681.9 | |
| 0.00 | 1.38 | 0.00 | 0.83 | 22.25 | 97.71 | 29.52 | 305.97 | 0.5657 | 816.0 | 671.7 | |
| 0.00 | 1.03 | 0.00 | 0.60 | 17.89 | 96.65 | 28.46 | 299.62 | 0.5237 | 865.0 | 722.2 | |
| 0.00 | 1.55 | 0.00 | 0.90 | 17.87 | 96.46 | 28.27 | 299.72 | 0.5212 | 721.0 | 692.8 | |
| 0.00 | 4.48 | 0.00 | 2.60 | 18.27 | 96.46 | 28.27 | 300.42 | 0.5237 | 742.0 | 550.7 | |
| 0.43 | 1.81 | 0.25 | 1.05 | 18.02 | 96.35 | 28.16 | 300.08 | 0.5207 | 969.4 | 810.6 | |
| 0.00 | 4.65 | 0.00 | 2.69 | 17.75 | 96.23 | 28.04 | 299.69 | 0.5175 | 817.0 | 728.6 | |
| 0.00 | 0.69 | 0.00 | 0.41 | 23.06 | 97.02 | 28.83 | 307.78 | 0.5635 | 565.0 | 495.8 | |
| 0.00 | 2.50 | 0.00 | 1.44 | 17.40 | 95.75 | 27.56 | 299.43 | 0.5090 | 968.0 | 728.4 | |
| 0.00 | 1.12 | 0.00 | 0.62 | 11.25 | 94.16 | 25.97 | 288.45 | 0.4547 | 693.0 | 498.5 | |
| 0.00 | 1.98 | 0.00 | 1.15 | 19.78 | 95.32 | 27.13 | 303.96 | 0.5194 | 679.0 | 665.0 | |
| 0.00 | 4.31 | 0.00 | 2.50 | 20.15 | 95.35 | 27.16 | 304.56 | 0.5225 | 695.0 | 594.8 | |
| 0.00 | 1.29 | 0.00 | 0.75 | 19.44 | 95.19 | 27.00 | 303.49 | 0.5153 | 717.0 | 506.3 | |
| 0.00 | 1.81 | 0.00 | 1.05 | 19.97 | 95.18 | 26.99 | 304.40 | 0.5190 | 906.0 | 739.7 | |
| 0.00 | 1.21 | 0.00 | 0.70 | 20.04 | 95.05 | 26.86 | 304.63 | 0.5179 | 763.0 | 541.0 | |
| 0.00 | 1.21 | 0.00 | 0.71 | 23.38 | 95.70 | 27.51 | 309.43 | 0.5510 | 425.0 | 385.4 | |
| 0.00 | 0.95 | 0.00 | 0.54 | 19.34 | 94.32 | 26.13 | 304.08 | 0.5038 | 789.0 | 599.2 | |
| 0.00 | 1.12 | 0.00 | 0.63 | 15.60 | 93.17 | 24.98 | 298.12 | 0.4631 | 770.0 | 625.7 | |
| 0.00 | 1.29 | 0.00 | 0.72 | 18.63 | 91.75 | 23.56 | 305.30 | 0.4660 | 788.0 | 594.0 | |
| 0.00 | 0.95 | 0.00 | 0.53 | 18.17 | 91.68 | 23.49 | 304.51 | 0.4616 | 629.0 | 538.8 | |
| 0.00 | 1.72 | 0.00 | 0.96 | 18.64 | 91.17 | 22.98 | 305.94 | 0.4588 | 867.0 | 632.8 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |