| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 298.06 | 1637.39 | 175.18 | 964.51 | -11.36 | 241.78 | 26.79 | 235.00 | 0.5369 | -12.4 | 41.9 | |
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| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.50 | 0.00 | 2.89 | -11.53 | 250.26 | 35.27 | 242.58 | 0.6397 | 642.0 | 551.5 | |
| 0.00 | 0.79 | 0.00 | 0.51 | -12.07 | 249.92 | 34.94 | 241.59 | 0.6391 | 435.0 | 269.4 | |
| 1.15 | 3.62 | 0.73 | 2.30 | -10.82 | 249.60 | 34.62 | 243.14 | 0.6277 | 695.7 | 587.3 | |
| 0.00 | 0.79 | 0.00 | 0.50 | -10.18 | 248.89 | 33.90 | 243.60 | 0.6152 | 479.0 | 331.6 | |
| 0.00 | 1.06 | 0.00 | 0.67 | -12.44 | 248.86 | 33.88 | 240.31 | 0.6288 | 420.0 | 421.3 | |
| 1.94 | 6.08 | 1.24 | 3.88 | -13.10 | 248.74 | 33.75 | 239.30 | 0.6316 | 489.6 | 339.5 | |
| 1.41 | 17.90 | 0.90 | 11.40 | -13.70 | 248.20 | 33.22 | 238.06 | 0.6294 | -225.1 | -12.7 | |
| 36.95 | 839.10 | 22.99 | 515.45 | -11.07 | 247.79 | 32.81 | 241.49 | 0.6073 | 1198.8 | 350.2 | |
| 1.59 | -8.00 | 0.98 | -8.00 | -10.47 | 247.64 | 32.66 | 242.28 | 0.6017 | 1037.1 | 999999 | |
| 0.00 | 1.23 | 0.00 | 0.78 | -12.65 | 247.71 | 32.72 | 239.16 | 0.6166 | 84.0 | 83.6 | |
| 0.35 | 1.32 | 0.22 | 0.81 | -9.25 | 247.18 | 32.20 | 243.79 | 0.5884 | 745.8 | 773.6 | |
| 40.47 | -8.00 | 24.99 | -8.00 | -11.09 | 247.10 | 32.12 | 240.95 | 0.5990 | 1434.2 | 999999 | |
| 1.50 | 3.44 | 0.95 | 2.17 | -14.03 | 247.40 | 32.42 | 236.98 | 0.6226 | -754.5 | -619.3 | |
| 3.44 | -8.00 | 2.13 | -8.00 | -11.77 | 246.86 | 31.88 | 239.76 | 0.6006 | 739.8 | 999999 | |
| 0.00 | 2.29 | 0.00 | 1.39 | -9.55 | 246.14 | 31.15 | 242.54 | 0.5771 | 162.0 | 216.3 | |
| 0.00 | 1.15 | 0.00 | 0.69 | -8.14 | 245.93 | 30.95 | 244.62 | 0.5657 | -729.0 | -509.2 | |
| 0.00 | 1.59 | 0.00 | 0.95 | -8.64 | 245.98 | 31.00 | 243.86 | 0.5693 | 745.0 | 476.1 | |
| 7.58 | -8.00 | 4.62 | -8.00 | -10.95 | 246.00 | 31.02 | 240.29 | 0.5847 | 1061.0 | 999999 | |
| 1.41 | -8.00 | 0.87 | -8.00 | -12.90 | 246.22 | 31.23 | 237.60 | 0.6008 | 293.3 | 999999 | |
| 0.00 | 2.91 | 0.00 | 1.75 | -9.36 | 245.55 | 30.57 | 242.39 | 0.5685 | 821.0 | 599.2 | |
| 4.50 | -8.00 | 2.73 | -8.00 | -10.87 | 245.67 | 30.69 | 240.15 | 0.5801 | 1012.4 | 999999 | |
| 2.38 | 10.76 | 1.42 | 6.43 | -8.78 | 245.25 | 30.27 | 243.07 | 0.5608 | 1031.0 | 715.8 | |
| 3.00 | -8.00 | 1.85 | -8.00 | -13.18 | 245.71 | 30.73 | 236.77 | 0.5970 | 813.9 | 999999 | |
| 0.00 | 1.68 | 0.00 | 1.01 | -9.78 | 245.31 | 30.33 | 241.53 | 0.5682 | 854.0 | 738.4 | |
| 6.79 | -8.00 | 4.11 | -8.00 | -10.88 | 245.39 | 30.41 | 239.90 | 0.5767 | 1136.3 | 999999 | |
| 3.00 | -8.00 | 1.86 | -8.00 | -13.95 | 245.79 | 30.81 | 235.74 | 0.6036 | -737.1 | 999999 | |
| 1.15 | -8.00 | 0.70 | -8.00 | -11.20 | 245.43 | 30.44 | 239.45 | 0.5794 | 677.3 | 999999 | |
| 0.00 | 0.88 | 0.00 | 0.54 | -11.96 | 245.52 | 30.54 | 238.38 | 0.5859 | 636.0 | 384.7 | |
| 1.06 | -8.00 | 0.65 | -8.00 | -12.21 | 245.48 | 30.50 | 237.98 | 0.5872 | 651.0 | 999999 | |
| 0.00 | 1.50 | 0.00 | 0.93 | -14.29 | 245.59 | 30.60 | 235.09 | 0.6038 | -796.0 | -678.9 | |
| 20.99 | -8.00 | 12.66 | -8.00 | -10.93 | 245.08 | 30.09 | 239.57 | 0.5732 | 1217.1 | 999999 | |
| 2.82 | -8.00 | 1.74 | -8.00 | -13.60 | 245.31 | 30.32 | 235.82 | 0.5954 | -597.8 | 999999 | |
| 0.00 | 0.97 | 0.00 | 0.58 | -9.16 | 244.79 | 29.81 | 242.10 | 0.5574 | 790.0 | 659.0 | |
| 1.06 | -8.00 | 0.64 | -8.00 | -10.59 | 244.76 | 29.77 | 239.81 | 0.5669 | 1105.2 | 999999 | |
| 0.00 | 1.06 | 0.00 | 0.63 | -9.39 | 244.53 | 29.55 | 241.51 | 0.5557 | 597.0 | 522.8 | |
| 2.29 | -8.00 | 1.40 | -8.00 | -12.97 | 244.90 | 29.92 | 236.37 | 0.5859 | -421.7 | 999999 | |
| 1.23 | 3.88 | 0.76 | 2.38 | -13.90 | 244.88 | 29.90 | 235.03 | 0.5928 | -852.0 | -655.4 | |
| 1.94 | -8.00 | 1.19 | -8.00 | -13.47 | 244.72 | 29.73 | 235.48 | 0.5876 | -807.2 | 999999 | |
| 0.00 | 1.32 | 0.00 | 0.79 | -9.89 | 244.12 | 29.14 | 240.36 | 0.5541 | 506.0 | 428.3 | |
| 0.00 | 1.85 | 0.00 | 1.10 | -10.05 | 244.07 | 29.09 | 240.07 | 0.5545 | 459.0 | 476.1 | |
| 0.00 | 1.15 | 0.00 | 0.68 | -10.39 | 244.07 | 29.09 | 239.53 | 0.5569 | 864.0 | 540.0 | |
| 0.79 | 7.41 | 0.48 | 4.44 | -11.59 | 244.16 | 29.18 | 237.76 | 0.5668 | 1001.8 | 762.8 | |
| 5.91 | -8.00 | 3.59 | -8.00 | -13.28 | 244.23 | 29.25 | 235.32 | 0.5804 | -887.0 | 999999 | |
| 4.67 | -8.00 | 2.82 | -8.00 | -12.76 | 244.13 | 29.14 | 235.98 | 0.5753 | -575.5 | 999999 | |
| 0.00 | 1.85 | 0.00 | 1.11 | -11.75 | 243.62 | 28.64 | 237.03 | 0.5614 | 656.0 | 536.2 | |
| 0.00 | 1.15 | 0.00 | 0.69 | -12.80 | 243.64 | 28.66 | 235.48 | 0.5698 | -518.0 | -448.3 | |
| 0.00 | 1.50 | 0.00 | 0.89 | -10.22 | 243.32 | 28.34 | 239.13 | 0.5463 | 935.0 | 763.6 | |
| 0.00 | 0.88 | 0.00 | 0.53 | -13.05 | 243.53 | 28.55 | 235.01 | 0.5704 | 526.0 | 477.6 | |
| 0.00 | 1.06 | 0.00 | 0.63 | -13.88 | 242.03 | 27.04 | 232.31 | 0.5599 | 584.0 | 493.1 | |
| 0.00 | 0.71 | 0.00 | 0.42 | -13.87 | 241.75 | 26.76 | 232.04 | 0.5566 | 558.0 | 564.6 | |
| 0.00 | 1.85 | 0.00 | 1.10 | -14.40 | 241.05 | 26.07 | 230.53 | 0.5535 | 719.0 | 524.2 | |
| 0.00 | 1.85 | 0.00 | 1.10 | -14.17 | 240.85 | 25.87 | 230.66 | 0.5491 | 732.0 | 648.4 | |
| 0.00 | 1.32 | 0.00 | 0.78 | -13.97 | 240.65 | 25.67 | 230.74 | 0.5451 | 636.0 | 572.3 | |
| 0.00 | 2.03 | 0.00 | 1.20 | -14.19 | 240.65 | 25.66 | 230.40 | 0.5470 | 597.0 | 509.2 | |
| 0.00 | 0.71 | 0.00 | 0.40 | -8.95 | 240.14 | 25.15 | 238.16 | 0.4963 | -560.0 | -508.4 | |
| 3.62 | 5.56 | 2.09 | 3.22 | -11.53 | 240.29 | 25.31 | 234.05 | 0.5194 | -856.8 | -561.9 | |
| 0.00 | 1.15 | 0.00 | 0.66 | -11.08 | 240.25 | 25.26 | 234.71 | 0.5151 | 844.0 | 806.2 | |
| 0.00 | 0.88 | 0.00 | 0.51 | -11.07 | 239.94 | 24.96 | 234.41 | 0.5113 | 787.0 | 661.9 | |
| 0.00 | 0.88 | 0.00 | 0.50 | -9.16 | 239.45 | 24.47 | 237.06 | 0.4892 | 612.0 | 567.7 | |
| 0.00 | 1.68 | 0.00 | 0.94 | -6.98 | 239.28 | 24.29 | 240.80 | 0.4697 | -730.0 | -594.9 | |
| 0.00 | 0.35 | 0.00 | 0.20 | -9.09 | 239.28 | 24.29 | 237.00 | 0.4864 | 763.0 | 594.0 | |
| 0.00 | 4.06 | 0.00 | 2.37 | -13.74 | 239.53 | 24.55 | 229.81 | 0.5304 | 753.0 | 643.3 | |
| 0.00 | 1.06 | 0.00 | 0.62 | -14.97 | 239.61 | 24.62 | 228.12 | 0.5427 | 411.0 | 332.1 | |
| 0.00 | 1.41 | 0.00 | 0.82 | -13.99 | 239.36 | 24.37 | 229.24 | 0.5307 | 511.0 | 444.6 | |
| 0.00 | 0.62 | 0.00 | 0.36 | -14.70 | 239.34 | 24.35 | 228.19 | 0.5372 | 595.0 | 531.1 | |
| 0.79 | 1.94 | 0.45 | 1.11 | -11.30 | 238.95 | 23.97 | 232.92 | 0.5014 | 611.2 | 506.7 | |
| 0.00 | 0.88 | 0.00 | 0.50 | -10.32 | 238.87 | 23.89 | 234.44 | 0.4917 | 695.0 | 547.6 | |
| 0.00 | 1.68 | 0.00 | 0.96 | -11.48 | 238.80 | 23.82 | 232.45 | 0.5012 | 667.0 | 568.3 | |
| 1.06 | 4.41 | 0.60 | 2.51 | -11.25 | 238.68 | 23.70 | 232.67 | 0.4977 | 882.2 | 700.8 | |
| 0.00 | 0.97 | 0.00 | 0.56 | -14.13 | 238.90 | 23.91 | 228.50 | 0.5269 | 588.0 | 484.0 | |
| 0.62 | -69.00 | 0.35 | -69.00 | -11.37 | 238.56 | 23.57 | 232.33 | 0.4973 | 841.6 | 999999 | |
| 0.00 | 0.71 | 0.00 | 0.41 | -13.21 | 238.53 | 23.55 | 229.42 | 0.5141 | 619.0 | 529.8 | |
| 0.00 | 2.38 | 0.00 | 1.38 | -13.98 | 238.58 | 23.59 | 228.33 | 0.5220 | 729.0 | 685.0 | |
| 0.00 | 23.54 | 0.00 | 13.43 | -11.80 | 238.26 | 23.28 | 231.29 | 0.4977 | 105.0 | 300.5 | |
| 0.00 | 1.06 | 0.00 | 0.61 | -14.27 | 238.51 | 23.52 | 227.83 | 0.5240 | 608.0 | 500.6 | |
| 0.00 | 0.53 | 0.00 | 0.31 | -14.92 | 238.58 | 23.60 | 226.99 | 0.5311 | 489.0 | 430.3 | |
| 0.00 | 1.23 | 0.00 | 0.70 | -11.32 | 238.02 | 23.03 | 231.78 | 0.4903 | -621.0 | -545.6 | |
| 0.00 | 0.71 | 0.00 | 0.40 | -10.46 | 237.91 | 22.93 | 233.07 | 0.4813 | -767.0 | -641.2 | |
| 0.00 | 1.15 | 0.00 | 0.65 | -10.62 | 237.89 | 22.91 | 232.79 | 0.4824 | -802.0 | -653.7 | |
| 0.00 | 1.76 | 0.00 | 1.00 | -11.09 | 237.86 | 22.88 | 231.97 | 0.4864 | -844.0 | -706.8 | |
| 0.00 | 1.94 | 0.00 | 1.12 | -14.11 | 237.95 | 22.97 | 227.38 | 0.5163 | 844.0 | 697.8 | |
| 0.00 | 1.32 | 0.00 | 0.74 | -10.18 | 237.40 | 22.41 | 232.91 | 0.4724 | 717.0 | 429.3 | |
| 0.00 | 0.44 | 0.00 | 0.24 | -8.14 | 237.00 | 22.02 | 236.07 | 0.4491 | -730.0 | -547.8 | |
| 0.00 | 4.94 | 0.00 | 2.79 | -11.37 | 237.19 | 22.21 | 230.67 | 0.4810 | -880.0 | -724.6 | |
| 0.00 | 1.41 | 0.00 | 0.80 | -11.45 | 236.97 | 21.98 | 230.24 | 0.4792 | -1008.0 | -742.6 | |
| 0.00 | 5.56 | 0.00 | 3.16 | -12.72 | 236.94 | 21.96 | 228.20 | 0.4913 | 363.0 | 379.7 | |
| 0.00 | 1.76 | 0.00 | 0.99 | -11.54 | 236.68 | 21.69 | 229.73 | 0.4766 | -834.0 | -706.2 | |
| 0.00 | 2.03 | 0.00 | 1.16 | -14.38 | 236.90 | 21.92 | 225.65 | 0.5077 | -804.0 | -653.7 | |
| 0.97 | 5.03 | 0.56 | 2.92 | -16.04 | 237.02 | 22.03 | 223.48 | 0.5261 | -750.6 | -645.2 | |
| 0.00 | 2.03 | 0.00 | 1.15 | -12.96 | 236.70 | 21.72 | 227.50 | 0.4910 | -506.0 | -328.6 | |
| 0.00 | 3.79 | 0.00 | 2.13 | -11.46 | 236.47 | 21.49 | 229.58 | 0.4735 | -884.0 | -643.0 | |
| 0.00 | 1.15 | 0.00 | 0.66 | -15.73 | 236.75 | 21.76 | 223.54 | 0.5201 | -756.0 | -731.7 | |
| 0.00 | 0.44 | 0.00 | 0.25 | -15.30 | 236.46 | 21.48 | 223.77 | 0.5126 | -773.0 | -689.4 | |
| 0.00 | 0.97 | 0.00 | 0.54 | -11.76 | 236.10 | 21.12 | 228.60 | 0.4722 | -704.0 | -550.0 | |
| 8.82 | 30.42 | 5.01 | 17.29 | -13.58 | 236.22 | 21.24 | 225.94 | 0.4921 | -967.0 | -498.6 | |
| 0.26 | 3.17 | 0.15 | 1.79 | -12.62 | 236.14 | 21.16 | 227.29 | 0.4813 | -687.3 | -614.2 | |
| 0.00 | 2.38 | 0.00 | 1.34 | -12.40 | 236.12 | 21.14 | 227.61 | 0.4788 | -800.0 | -602.4 | |
| 3.88 | -95.00 | 2.21 | -95.00 | -13.77 | 236.14 | 21.16 | 225.54 | 0.4932 | -934.5 | 999999 | |
| 1.76 | 4.67 | 1.02 | 2.70 | -15.94 | 236.37 | 21.38 | 222.76 | 0.5185 | -1022.8 | -753.3 | |
| 0.53 | -96.00 | 0.30 | -96.00 | -12.61 | 236.01 | 21.02 | 227.12 | 0.4797 | -798.5 | 999999 | |
| 0.00 | 1.32 | 0.00 | 0.74 | -12.04 | 235.86 | 20.88 | 227.83 | 0.4722 | -656.0 | -608.9 | |
| 0.00 | 1.06 | 0.00 | 0.59 | -12.44 | 235.63 | 20.65 | 226.87 | 0.4737 | -498.0 | -365.9 | |
| 3.00 | 9.35 | 1.71 | 5.33 | -14.43 | 235.77 | 20.79 | 224.08 | 0.4962 | -961.6 | -666.8 | |
| 0.00 | 0.62 | 0.00 | 0.34 | -6.85 | 235.25 | 20.26 | 236.32 | 0.4150 | -685.0 | -599.9 | |
| 0.00 | 1.32 | 0.00 | 0.74 | -12.62 | 235.51 | 20.53 | 226.42 | 0.4743 | -558.0 | -425.5 | |
| 10.85 | 58.55 | 6.07 | 32.74 | -11.98 | 235.43 | 20.45 | 227.32 | 0.4668 | -1030.0 | -580.6 | |
| 0.00 | 1.50 | 0.00 | 0.85 | -13.93 | 235.53 | 20.55 | 224.46 | 0.4883 | -909.0 | -731.4 | |
| 0.00 | 3.70 | 0.00 | 2.08 | -12.94 | 235.41 | 20.42 | 225.79 | 0.4764 | -968.0 | -750.2 | |
| 0.00 | 0.88 | 0.00 | 0.50 | -14.60 | 235.43 | 20.44 | 223.34 | 0.4944 | -711.0 | -640.6 | |
| 0.44 | 1.23 | 0.25 | 0.69 | -11.68 | 235.01 | 20.03 | 227.22 | 0.4589 | -952.0 | -844.7 | |
| 3.53 | -106.00 | 1.97 | -106.00 | -12.41 | 234.97 | 19.99 | 225.99 | 0.4661 | -1034.0 | 999999 | |
| 41.71 | 464.70 | 22.98 | 255.75 | -10.06 | 234.77 | 19.79 | 229.60 | 0.4395 | -1360.2 | -480.5 | |
| 2.29 | -106.00 | 1.28 | -106.00 | -12.37 | 234.77 | 19.79 | 225.77 | 0.4634 | -976.2 | 999999 | |
| 1.23 | -112.00 | 0.69 | -112.00 | -11.63 | 234.55 | 19.57 | 226.63 | 0.4531 | -811.6 | 999999 | |
| 11.29 | -112.00 | 6.25 | -112.00 | -11.43 | 234.24 | 19.26 | 226.51 | 0.4475 | -1005.8 | 999999 | |
| 10.49 | -112.00 | 5.77 | -112.00 | -10.35 | 234.14 | 19.16 | 228.18 | 0.4350 | -1440.3 | 999999 | |
| 11.82 | -112.00 | 6.50 | -112.00 | -10.60 | 234.12 | 19.14 | 227.72 | 0.4375 | -1127.9 | 999999 | |
| 0.00 | 1.41 | 0.00 | 0.77 | -8.53 | 233.84 | 18.86 | 231.05 | 0.4129 | -593.0 | -548.6 | |
| 1.68 | -112.00 | 0.93 | -112.00 | -11.38 | 233.95 | 18.97 | 226.14 | 0.4437 | -1089.9 | 999999 | |
| 0.00 | 0.97 | 0.00 | 0.55 | -14.84 | 234.23 | 19.24 | 221.29 | 0.4848 | -597.0 | -508.7 | |
| 0.00 | 0.62 | 0.00 | 0.35 | -14.68 | 234.18 | 19.20 | 221.44 | 0.4825 | -796.0 | -719.9 | |
| 0.00 | 2.29 | 0.00 | 1.25 | -8.89 | 233.64 | 18.66 | 230.05 | 0.4140 | -1026.0 | -725.2 | |
| 15.08 | -112.00 | 8.29 | -112.00 | -10.96 | 233.66 | 18.68 | 226.41 | 0.4360 | -1183.5 | 999999 | |
| 0.97 | -112.00 | 0.53 | -112.00 | -11.11 | 233.38 | 18.40 | 225.72 | 0.4344 | -826.1 | 999999 | |
| 0.00 | 1.23 | 0.00 | 0.66 | -6.70 | 232.39 | 17.41 | 232.44 | 0.3765 | -1008.0 | -802.9 | |
| 0.00 | 1.85 | 0.00 | 1.03 | -13.59 | 232.72 | 17.73 | 220.77 | 0.4553 | -747.0 | -606.2 | |
| 0.00 | 0.97 | 0.00 | 0.54 | -12.85 | 232.63 | 17.65 | 221.73 | 0.4458 | -694.0 | -579.1 | |
| 0.00 | 1.41 | 0.00 | 0.79 | -13.97 | 232.55 | 17.57 | 219.95 | 0.4580 | -720.0 | -566.1 | |
| 0.00 | 2.29 | 0.00 | 1.27 | -13.00 | 232.35 | 17.37 | 221.05 | 0.4447 | -931.0 | -645.7 | |
| 0.00 | 1.32 | 0.00 | 0.73 | -13.04 | 231.77 | 16.79 | 220.03 | 0.4393 | -784.0 | -665.7 | |
| 0.00 | 0.44 | 0.00 | 0.24 | -8.53 | 231.52 | 16.53 | 227.27 | 0.3848 | -828.0 | -692.6 | |
| 0.00 | 0.71 | 0.00 | 0.38 | -9.99 | 231.33 | 16.35 | 224.25 | 0.3990 | -792.0 | -571.2 | |
| 0.00 | 1.76 | 0.00 | 0.94 | -8.28 | 230.72 | 15.73 | 226.31 | 0.3727 | -935.0 | -800.1 | |
| 0.00 | 1.06 | 0.00 | 0.60 | -17.28 | 229.92 | 14.94 | 211.32 | 0.4756 | -682.0 | -639.2 | |
| 0.00 | 1.15 | 0.00 | 0.65 | -17.96 | 229.39 | 14.41 | 209.66 | 0.4803 | -832.0 | -697.3 | |
| 0.00 | 1.32 | 0.00 | 0.72 | -14.69 | 227.08 | 12.10 | 209.10 | 0.4186 | -800.0 | -631.3 | |
| 0.00 | 1.94 | 0.00 | 1.02 | -9.46 | 226.16 | 11.18 | 214.51 | 0.3391 | -717.0 | -616.5 | |
| 0.00 | 1.23 | 0.00 | 0.67 | -15.17 | 225.80 | 10.82 | 205.94 | 0.4160 | -902.0 | -638.0 | |
| 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. | |