SDO HMI 2014-05-14 04:00:37 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 123.73 | 778.69 | 62.96 | 397.45 | -14.49 | 228.31 | -5.43 | 159.40 | 0.2312 | 205.4 | 140.6 | |
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See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 1.08 | 0.00 | 0.57 | -10.15 | 253.11 | 19.37 | 248.14 | 0.3533 | 748.0 | 566.8 | |
| 0.00 | 2.15 | 0.00 | 1.13 | -6.63 | 252.15 | 18.42 | 257.49 | 0.3229 | 779.0 | 604.3 | |
| 0.00 | 0.81 | 0.00 | 0.41 | -6.75 | 243.41 | 9.67 | 247.25 | 0.1817 | 745.0 | 544.6 | |
| 0.00 | 1.08 | 0.00 | 0.55 | -11.64 | 241.85 | 8.11 | 221.81 | 0.2082 | 746.0 | 547.4 | |
| 0.00 | 1.08 | 0.00 | 0.55 | -13.46 | 241.46 | 7.73 | 215.15 | 0.2281 | 597.0 | 509.0 | |
| 0.00 | 1.44 | 0.00 | 0.73 | -14.58 | 239.92 | 6.19 | 207.00 | 0.2308 | 742.0 | 446.4 | |
| 0.00 | 0.90 | 0.00 | 0.45 | -8.30 | 238.04 | 4.31 | 217.66 | 0.1222 | 892.0 | 662.5 | |
| 0.00 | 0.90 | 0.00 | 0.45 | -8.57 | 237.98 | 4.25 | 215.94 | 0.1254 | 815.0 | 668.5 | |
| 0.00 | 2.42 | 0.00 | 1.21 | -9.61 | 236.89 | 3.15 | 204.48 | 0.1313 | 833.0 | 658.0 | |
| 0.00 | 1.08 | 0.00 | 0.54 | -11.97 | 236.81 | 3.08 | 198.21 | 0.1689 | 874.0 | 730.3 | |
| 0.00 | 2.42 | 0.00 | 1.21 | -10.93 | 236.77 | 3.04 | 200.16 | 0.1517 | 936.0 | 698.4 | |
| 0.00 | 1.08 | 0.00 | 0.54 | -11.38 | 236.72 | 2.98 | 198.81 | 0.1588 | 993.0 | 743.8 | |
| 0.00 | 1.35 | 0.00 | 0.67 | -6.24 | 236.68 | 2.95 | 220.27 | 0.0794 | 823.0 | 598.2 | |
| 0.00 | 1.08 | 0.00 | 0.54 | -12.18 | 236.41 | 2.68 | 195.62 | 0.1704 | 887.0 | 646.3 | |
| 0.00 | 1.97 | 0.00 | 0.99 | -10.01 | 236.18 | 2.45 | 198.46 | 0.1333 | 949.0 | 659.3 | |
| 0.00 | 1.35 | 0.00 | 0.68 | -13.29 | 236.21 | 2.47 | 192.95 | 0.1880 | 879.0 | 637.1 | |
| 0.00 | 1.35 | 0.00 | 0.67 | -10.38 | 235.87 | 2.14 | 195.53 | 0.1378 | 828.0 | 713.7 | |
| 0.36 | 2.24 | 0.18 | 1.12 | -11.02 | 235.57 | 1.83 | 192.37 | 0.1473 | 1082.2 | 785.0 | |
| 0.00 | 1.53 | 0.00 | 0.76 | -7.76 | 235.56 | 1.82 | 199.96 | 0.0927 | 831.0 | 702.1 | |
| 0.00 | 1.26 | 0.00 | 0.63 | -12.92 | 235.55 | 1.81 | 189.94 | 0.1795 | 838.0 | 628.8 | |
| 0.00 | 6.01 | 0.00 | 3.03 | -13.54 | 235.40 | 1.66 | 188.59 | 0.1896 | 1164.0 | 936.1 | |
| 0.00 | 1.08 | 0.00 | 0.54 | -13.72 | 235.37 | 1.63 | 188.29 | 0.1927 | 404.0 | 452.4 | |
| 0.00 | 0.99 | 0.00 | 0.49 | -5.15 | 235.25 | 1.51 | 212.49 | 0.0491 | 923.0 | 755.8 | |
| 0.00 | 1.44 | 0.00 | 0.72 | -9.52 | 235.13 | 1.40 | 191.58 | 0.1203 | 803.0 | 712.1 | |
| 0.00 | 3.50 | 0.00 | 1.75 | -11.14 | 235.08 | 1.34 | 188.98 | 0.1479 | 362.0 | 391.0 | |
| 0.00 | 2.42 | 0.00 | 1.21 | -9.98 | 235.01 | 1.28 | 189.93 | 0.1278 | 1064.0 | 836.9 | |
| 0.00 | 1.62 | 0.00 | 0.80 | -5.11 | 234.97 | 1.24 | 207.85 | 0.0463 | 936.0 | 848.9 | |
| 0.00 | 1.62 | 0.00 | 0.82 | -14.46 | 234.84 | 1.10 | 185.27 | 0.2043 | 868.0 | 675.1 | |
| 0.00 | 2.96 | 0.00 | 1.48 | -10.13 | 234.80 | 1.06 | 188.11 | 0.1298 | 983.0 | 815.2 | |
| 0.00 | 6.46 | 0.00 | 3.21 | -5.30 | 234.73 | 0.99 | 201.49 | 0.0474 | 1241.0 | 931.3 | |
| 0.00 | 1.62 | 0.00 | 0.81 | -10.56 | 234.70 | 0.97 | 187.01 | 0.1370 | 1072.0 | 829.1 | |
| 0.00 | 3.23 | 0.00 | 1.61 | -6.84 | 234.55 | 0.81 | 191.23 | 0.0725 | 837.0 | 607.4 | |
| 0.00 | 2.69 | 0.00 | 1.35 | -10.38 | 234.52 | 0.78 | 185.82 | 0.1334 | 577.0 | 710.6 | |
| 0.00 | 1.89 | 0.00 | 0.94 | -10.31 | 234.18 | 0.45 | 183.34 | 0.1319 | 897.0 | 670.5 | |
| 0.00 | 1.71 | 0.00 | 0.85 | -8.58 | 234.12 | 0.38 | 183.76 | 0.1016 | 911.0 | 663.2 | |
| 0.00 | 1.62 | 0.00 | 0.82 | -15.45 | 234.09 | 0.35 | 181.56 | 0.2204 | 836.0 | 746.4 | |
| 0.00 | 1.26 | 0.00 | 0.65 | -19.97 | 233.58 | -0.16 | 179.50 | 0.2968 | 858.0 | 658.5 | |
| 1.97 | 7.09 | 0.99 | 3.54 | -10.37 | 233.16 | -0.57 | 175.76 | 0.1331 | 1031.0 | 777.3 | |
| 0.00 | 1.35 | 0.00 | 0.67 | -5.72 | 233.18 | -0.56 | 169.29 | 0.0524 | 811.0 | 562.1 | |
| 0.00 | 0.90 | 0.00 | 0.47 | -20.54 | 233.09 | -0.64 | 178.02 | 0.3066 | 810.0 | 611.9 | |
| 0.00 | 1.62 | 0.00 | 0.81 | -10.86 | 231.84 | -1.90 | 166.97 | 0.1449 | -1036.0 | -843.4 | |
| 0.00 | 1.44 | 0.00 | 0.73 | -14.74 | 231.68 | -2.06 | 170.48 | 0.2110 | 609.0 | 507.6 | |
| 0.00 | 4.22 | 0.00 | 2.11 | -10.34 | 231.53 | -2.20 | 163.97 | 0.1375 | -1118.0 | -881.6 | |
| 0.00 | 0.81 | 0.00 | 0.40 | -10.95 | 231.43 | -2.30 | 164.50 | 0.1482 | -908.0 | -701.7 | |
| 0.00 | 2.78 | 0.00 | 1.39 | -10.71 | 231.41 | -2.33 | 163.85 | 0.1442 | -1048.0 | -968.9 | |
| 0.00 | 1.97 | 0.00 | 0.99 | -10.22 | 230.95 | -2.79 | 159.71 | 0.1386 | -972.0 | -796.1 | |
| 0.00 | 1.35 | 0.00 | 0.68 | -11.96 | 230.81 | -2.93 | 162.60 | 0.1680 | -893.0 | -687.3 | |
| 0.00 | 0.72 | 0.00 | 0.36 | -10.06 | 230.58 | -3.16 | 156.86 | 0.1385 | -801.0 | -643.9 | |
| 47.04 | 400.43 | 23.81 | 202.89 | -14.18 | 230.28 | -3.46 | 163.51 | 0.2070 | 1419.2 | 437.8 | |
| 0.00 | 1.80 | 0.00 | 0.90 | -11.59 | 230.28 | -3.45 | 158.94 | 0.1649 | -817.0 | -611.0 | |
| 0.00 | 2.06 | 0.00 | 1.05 | -15.66 | 229.78 | -3.96 | 163.40 | 0.2337 | 838.0 | 594.8 | |
| 1.53 | -49.00 | 0.78 | -49.00 | -15.23 | 229.75 | -3.98 | 162.74 | 0.2268 | 840.1 | 999999 | |
| 0.00 | 1.26 | 0.00 | 0.63 | -11.83 | 229.78 | -3.95 | 156.81 | 0.1720 | -1031.0 | -830.4 | |
| 32.05 | -49.00 | 16.25 | -49.00 | -14.42 | 229.36 | -4.37 | 159.90 | 0.2159 | 1090.2 | 999999 | |
| 0.00 | 0.90 | 0.00 | 0.46 | -17.66 | 229.25 | -4.48 | 163.83 | 0.2686 | 704.0 | 553.7 | |
| 0.00 | 1.17 | 0.00 | 0.60 | -17.62 | 229.10 | -4.64 | 163.26 | 0.2688 | 498.0 | 517.4 | |
| 0.00 | 2.96 | 0.00 | 1.52 | -17.44 | 229.01 | -4.73 | 162.73 | 0.2662 | 823.0 | 766.4 | |
| 0.00 | 2.24 | 0.00 | 1.13 | -11.12 | 228.93 | -4.81 | 150.48 | 0.1677 | -758.0 | -689.8 | |
| 0.00 | 0.81 | 0.00 | 0.41 | -15.16 | 228.78 | -4.96 | 158.76 | 0.2312 | 640.0 | 452.3 | |
| 1.17 | -49.00 | 0.59 | -49.00 | -13.74 | 228.72 | -5.02 | 155.94 | 0.2092 | 1173.8 | 999999 | |
| 1.35 | -49.00 | 0.68 | -49.00 | -13.86 | 228.59 | -5.14 | 155.64 | 0.2120 | 812.4 | 999999 | |
| 0.00 | 7.09 | 0.00 | 3.61 | -15.31 | 228.46 | -5.27 | 157.79 | 0.2356 | -153.0 | -183.0 | |
| 0.00 | 0.99 | 0.00 | 0.50 | -13.27 | 228.51 | -5.22 | 154.07 | 0.2036 | 815.0 | 635.4 | |
| 0.00 | 2.96 | 0.00 | 1.50 | -13.09 | 228.36 | -5.38 | 153.00 | 0.2019 | 876.0 | 741.5 | |
| 0.00 | 1.08 | 0.00 | 0.55 | -13.39 | 228.32 | -5.41 | 153.53 | 0.2069 | 695.0 | 598.8 | |
| 0.00 | 1.35 | 0.00 | 0.69 | -15.19 | 228.18 | -5.56 | 156.52 | 0.2355 | -186.0 | -154.3 | |
| 1.80 | 10.23 | 0.92 | 5.22 | -15.40 | 228.14 | -5.59 | 156.75 | 0.2391 | -998.8 | -508.4 | |
| 1.35 | -67.00 | 0.69 | -67.00 | -15.59 | 228.14 | -5.60 | 157.05 | 0.2421 | -1006.7 | 999999 | |
| 0.00 | 1.71 | 0.00 | 0.87 | -14.47 | 228.10 | -5.63 | 154.91 | 0.2250 | 863.0 | 648.1 | |
| 0.00 | 3.59 | 0.00 | 1.83 | -15.06 | 228.06 | -5.68 | 155.83 | 0.2344 | 440.0 | 439.0 | |
| 1.53 | 4.40 | 0.78 | 2.24 | -14.94 | 227.75 | -5.99 | 154.44 | 0.2347 | 847.2 | 579.8 | |
| 0.00 | 1.08 | 0.00 | 0.54 | -3.70 | 227.77 | -5.97 | 98.90 | 0.1055 | -800.0 | -473.9 | |
| 0.00 | 0.99 | 0.00 | 0.50 | -12.19 | 227.60 | -6.13 | 147.46 | 0.1951 | -822.0 | -735.0 | |
| 0.00 | 1.62 | 0.00 | 0.82 | -11.76 | 227.58 | -6.16 | 146.12 | 0.1892 | -959.0 | -790.6 | |
| 0.00 | 4.40 | 0.00 | 2.22 | -12.59 | 227.47 | -6.27 | 148.00 | 0.2021 | -940.0 | -851.0 | |
| 0.00 | 1.26 | 0.00 | 0.64 | -13.51 | 227.41 | -6.33 | 150.12 | 0.2160 | -867.0 | -621.4 | |
| 0.00 | 5.83 | 0.00 | 2.98 | -15.18 | 227.26 | -6.47 | 153.17 | 0.2420 | -543.0 | -432.6 | |
| 0.00 | 0.90 | 0.00 | 0.47 | -18.71 | 226.75 | -6.98 | 157.26 | 0.2992 | 753.0 | 646.8 | |
| 0.00 | 1.17 | 0.00 | 0.59 | -13.32 | 226.63 | -7.10 | 146.71 | 0.2202 | 754.0 | 562.8 | |
| 0.00 | 1.53 | 0.00 | 0.77 | -12.46 | 226.56 | -7.17 | 144.11 | 0.2089 | -949.0 | -794.4 | |
| 0.00 | 2.78 | 0.00 | 1.42 | -15.11 | 226.00 | -7.73 | 148.73 | 0.2514 | -850.0 | -866.9 | |
| 3.68 | 16.79 | 1.87 | 8.55 | -13.38 | 225.56 | -8.17 | 143.11 | 0.2315 | -1163.0 | -729.0 | |
| 0.99 | 32.76 | 0.51 | 16.84 | -16.16 | 225.42 | -8.32 | 149.08 | 0.2715 | -870.6 | -429.0 | |
| 0.00 | 2.96 | 0.00 | 1.51 | -14.52 | 225.46 | -8.28 | 145.64 | 0.2481 | -900.0 | -813.1 | |
| 1.08 | -83.00 | 0.55 | -83.00 | -15.98 | 225.36 | -8.37 | 148.54 | 0.2693 | -1138.6 | 999999 | |
| 2.15 | -82.00 | 1.10 | -82.00 | -13.53 | 225.40 | -8.34 | 142.98 | 0.2352 | -1157.0 | 999999 | |
| 0.00 | 1.80 | 0.00 | 0.92 | -13.90 | 225.16 | -8.57 | 143.19 | 0.2425 | -743.0 | -624.8 | |
| 8.80 | 17.50 | 4.50 | 8.95 | -14.30 | 224.96 | -8.78 | 143.55 | 0.2500 | -1187.7 | -768.0 | |
| 0.00 | 1.53 | 0.00 | 0.79 | -16.72 | 224.66 | -9.08 | 147.96 | 0.2861 | -1056.0 | -812.7 | |
| 0.00 | 1.08 | 0.00 | 0.56 | -16.87 | 224.49 | -9.24 | 147.79 | 0.2897 | -763.0 | -616.2 | |
| 0.36 | 16.79 | 0.18 | 8.64 | -15.59 | 224.43 | -9.31 | 144.98 | 0.2727 | -1142.8 | -832.6 | |
| 0.00 | 1.62 | 0.00 | 0.83 | -14.76 | 224.46 | -9.27 | 143.18 | 0.2611 | -1269.0 | -975.6 | |
| 0.00 | 3.50 | 0.00 | 1.80 | -15.22 | 224.44 | -9.29 | 144.20 | 0.2675 | -882.0 | -766.1 | |
| 0.00 | 4.13 | 0.00 | 2.13 | -16.34 | 224.26 | -9.47 | 146.10 | 0.2845 | -753.0 | -589.8 | |
| 2.69 | 4.76 | 1.38 | 2.44 | -14.48 | 224.29 | -9.45 | 141.98 | 0.2592 | -1127.4 | -813.1 | |
| 0.00 | 1.17 | 0.00 | 0.60 | -13.98 | 224.28 | -9.46 | 140.70 | 0.2529 | -1006.0 | -770.8 | |
| 0.00 | 1.08 | 0.00 | 0.55 | -15.53 | 224.01 | -9.72 | 143.68 | 0.2759 | -846.0 | -685.8 | |
| 0.00 | 1.17 | 0.00 | 0.64 | -26.78 | 223.01 | -10.73 | 157.82 | 0.4419 | 563.0 | 563.8 | |
| 0.81 | 11.40 | 0.42 | 5.88 | -15.68 | 223.78 | -9.95 | 143.39 | 0.2802 | -1167.1 | -781.2 | |
| 0.00 | 1.35 | 0.00 | 0.69 | -13.64 | 223.72 | -10.01 | 138.20 | 0.2547 | -1057.0 | -903.5 | |
| 0.00 | 1.26 | 0.00 | 0.64 | -12.59 | 223.70 | -10.03 | 135.17 | 0.2423 | -865.0 | -730.7 | |
| 0.54 | -99.00 | 0.28 | -99.00 | -15.65 | 223.53 | -10.21 | 142.63 | 0.2824 | -908.5 | 999999 | |
| 0.00 | 2.33 | 0.00 | 1.20 | -15.15 | 223.52 | -10.21 | 141.47 | 0.2760 | -1073.0 | -955.7 | |
| 0.00 | 1.53 | 0.00 | 0.79 | -14.87 | 223.54 | -10.20 | 140.85 | 0.2723 | -884.0 | -755.2 | |
| 0.99 | 3.77 | 0.51 | 1.94 | -14.62 | 223.42 | -10.31 | 139.93 | 0.2703 | -1187.2 | -978.3 | |
| 0.00 | 2.51 | 0.00 | 1.29 | -13.70 | 223.43 | -10.30 | 137.57 | 0.2587 | -1057.0 | -904.0 | |
| 0.00 | 1.26 | 0.00 | 0.65 | -15.21 | 223.30 | -10.44 | 141.01 | 0.2791 | -559.0 | -560.6 | |
| 0.00 | 4.04 | 0.00 | 2.08 | -14.96 | 223.24 | -10.49 | 140.29 | 0.2765 | -1014.0 | -785.4 | |
| 2.24 | 42.10 | 1.17 | 21.94 | -17.36 | 222.85 | -10.88 | 144.49 | 0.3115 | 1172.3 | 635.0 | |
| 0.00 | 0.45 | 0.00 | 0.23 | -14.65 | 222.94 | -10.79 | 138.73 | 0.2759 | -780.0 | -627.0 | |
| 0.00 | 0.90 | 0.00 | 0.46 | -14.99 | 222.89 | -10.84 | 139.44 | 0.2807 | -743.0 | -573.3 | |
| 0.00 | 2.69 | 0.00 | 1.41 | -18.80 | 222.60 | -11.14 | 146.55 | 0.3332 | -1005.0 | -690.7 | |
| 0.00 | 0.99 | 0.00 | 0.51 | -15.18 | 222.82 | -10.92 | 139.69 | 0.2838 | -730.0 | -556.0 | |
| 7.99 | -109.00 | 4.16 | -109.00 | -17.23 | 222.57 | -11.16 | 143.55 | 0.3126 | 1245.2 | 999999 | |
| 1.26 | -109.00 | 0.66 | -109.00 | -17.38 | 222.33 | -11.40 | 143.29 | 0.3170 | 830.8 | 999999 | |
| 0.00 | 1.71 | 0.00 | 0.90 | -19.26 | 221.65 | -12.09 | 145.23 | 0.3481 | -821.0 | -610.2 | |
| 0.00 | 1.17 | 0.00 | 0.62 | -19.13 | 220.74 | -13.00 | 143.06 | 0.3551 | -804.0 | -622.5 | |
| 0.00 | 1.44 | 0.00 | 0.77 | -19.93 | 219.18 | -14.56 | 141.43 | 0.3806 | -869.0 | -707.3 | |
| 0.00 | 1.53 | 0.00 | 0.82 | -20.69 | 219.00 | -14.73 | 142.41 | 0.3917 | -920.0 | -772.5 | |
| 0.00 | 1.17 | 0.00 | 0.63 | -20.94 | 218.51 | -15.23 | 141.93 | 0.3996 | -693.0 | -514.4 | |
| 0.00 | 0.90 | 0.00 | 0.48 | -18.25 | 218.31 | -15.43 | 136.72 | 0.3701 | -746.0 | -642.0 | |
| 0.00 | 1.35 | 0.00 | 0.72 | -19.41 | 218.13 | -15.61 | 138.60 | 0.3854 | -145.0 | -149.5 | |
| 0.00 | 0.90 | 0.00 | 0.48 | -18.65 | 218.10 | -15.63 | 137.14 | 0.3770 | -766.0 | -676.0 | |
| 0.00 | 1.53 | 0.00 | 0.84 | -22.66 | 217.46 | -16.27 | 142.89 | 0.4304 | -798.0 | -633.1 | |
| 0.00 | 2.42 | 0.00 | 1.31 | -20.10 | 217.75 | -15.98 | 139.20 | 0.3973 | -748.0 | -595.7 | |
| 0.00 | 1.62 | 0.00 | 0.90 | -23.86 | 215.61 | -18.13 | 141.82 | 0.4623 | -708.0 | -581.6 | |
| 0.00 | 1.35 | 0.00 | 0.75 | -23.44 | 215.39 | -18.35 | 140.87 | 0.4595 | -905.0 | -746.3 | |
| 0.00 | 2.42 | 0.00 | 1.35 | -23.63 | 215.29 | -18.44 | 141.02 | 0.4627 | -697.0 | -591.1 | |
| 0.00 | 1.08 | 0.00 | 0.60 | -21.61 | 213.92 | -19.82 | 135.91 | 0.4549 | -616.0 | -476.2 | |
| 0.00 | 1.08 | 0.00 | 0.62 | -23.47 | 211.33 | -22.41 | 135.56 | 0.5014 | -706.0 | -588.7 | |
| 0.00 | 1.17 | 0.00 | 0.66 | -21.06 | 211.67 | -22.07 | 132.11 | 0.4745 | -855.0 | -665.5 | |
| 0.00 | 0.81 | 0.00 | 0.45 | -16.25 | 211.20 | -22.54 | 122.73 | 0.4392 | -663.0 | -473.2 | |
| 0.00 | 1.97 | 0.00 | 1.22 | -26.78 | 204.81 | -28.93 | 133.66 | 0.5991 | -791.0 | -606.7 | |
| 0.00 | 0.63 | 0.00 | 0.39 | -27.14 | 204.43 | -29.30 | 133.82 | 0.6059 | -698.0 | -569.9 | |
| 0.00 | 0.99 | 0.00 | 0.62 | -27.17 | 204.15 | -29.58 | 133.61 | 0.6089 | -616.0 | -518.6 | |
| 0.00 | 1.08 | 0.00 | 0.67 | -23.22 | 201.67 | -32.06 | 126.12 | 0.6061 | -638.0 | -486.2 | |
| 0.00 | 1.62 | 0.00 | 1.01 | -22.07 | 200.81 | -32.92 | 123.82 | 0.6085 | -819.0 | -670.9 | |
| 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. |
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| 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. |
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| 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. | |