SDO HMI 2014-05-13 12:00:37 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 138.62 | 791.79 | 72.73 | 414.17 | -14.33 | 228.28 | -14.29 | 130.85 | 0.3149 | 239.1 | 124.4 | |
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| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 1.70 | 0.00 | 0.86 | -7.34 | 252.35 | 9.78 | 244.89 | 0.1868 | 737.0 | 694.4 | |
| 0.00 | 2.33 | 0.00 | 1.17 | -10.81 | 243.55 | 0.97 | 186.86 | 0.1401 | 940.0 | 685.6 | |
| 0.00 | 1.26 | 0.00 | 0.63 | -12.61 | 240.48 | -2.10 | 168.11 | 0.1741 | 949.0 | 764.7 | |
| 0.00 | 1.17 | 0.00 | 0.59 | -14.64 | 239.93 | -2.65 | 167.66 | 0.2102 | 972.0 | 741.4 | |
| 0.00 | 3.05 | 0.00 | 1.54 | -14.46 | 239.43 | -3.15 | 165.20 | 0.2091 | 781.0 | 706.4 | |
| 0.00 | 1.26 | 0.00 | 0.63 | -6.81 | 238.69 | -3.89 | 135.78 | 0.0969 | 865.0 | 627.4 | |
| 0.00 | 2.15 | 0.00 | 1.08 | -11.59 | 238.17 | -4.41 | 153.66 | 0.1705 | 957.0 | 761.4 | |
| 0.00 | 1.35 | 0.00 | 0.69 | -16.96 | 236.85 | -5.73 | 158.63 | 0.2632 | 889.0 | 786.3 | |
| 0.00 | 1.44 | 0.00 | 0.72 | -11.68 | 236.89 | -5.68 | 147.74 | 0.1825 | 876.0 | 726.2 | |
| 0.00 | 1.70 | 0.00 | 0.85 | -9.02 | 236.88 | -5.69 | 137.70 | 0.1462 | 869.0 | 687.3 | |
| 0.00 | 0.81 | 0.00 | 0.41 | -12.01 | 236.82 | -5.75 | 148.41 | 0.1880 | 945.0 | 741.8 | |
| 0.00 | 2.06 | 0.00 | 1.03 | -5.86 | 236.78 | -5.80 | 117.66 | 0.1141 | 786.0 | 673.3 | |
| 0.00 | 1.35 | 0.00 | 0.68 | -12.26 | 236.63 | -5.95 | 148.27 | 0.1933 | 963.0 | 789.5 | |
| 0.00 | 1.08 | 0.00 | 0.55 | -15.37 | 236.45 | -6.12 | 154.64 | 0.2413 | 755.0 | 609.6 | |
| 0.00 | 1.53 | 0.00 | 0.77 | -13.18 | 236.11 | -6.47 | 148.57 | 0.2113 | 1151.0 | 774.9 | |
| 0.00 | 1.17 | 0.00 | 0.59 | -9.62 | 236.16 | -6.41 | 137.03 | 0.1623 | 950.0 | 761.4 | |
| 0.00 | 0.99 | 0.00 | 0.50 | -9.56 | 235.92 | -6.66 | 135.69 | 0.1645 | 884.0 | 751.3 | |
| 0.00 | 2.24 | 0.00 | 1.15 | -16.45 | 235.65 | -6.92 | 153.86 | 0.2636 | 848.0 | 643.2 | |
| 0.00 | 1.08 | 0.00 | 0.54 | -9.99 | 235.72 | -6.86 | 136.66 | 0.1721 | 1008.0 | 867.9 | |
| 0.00 | 1.08 | 0.00 | 0.54 | -7.97 | 235.58 | -7.00 | 126.61 | 0.1510 | 991.0 | 733.2 | |
| 0.00 | 2.42 | 0.00 | 1.23 | -13.72 | 235.40 | -7.18 | 147.30 | 0.2256 | 748.0 | 487.3 | |
| 0.00 | 1.97 | 0.00 | 0.99 | -10.04 | 235.22 | -7.35 | 134.91 | 0.1787 | 852.0 | 717.5 | |
| 0.00 | 0.99 | 0.00 | 0.49 | -0.42 | 235.23 | -7.35 | 71.86 | 0.1352 | 905.0 | 723.3 | |
| 0.00 | 3.86 | 0.00 | 1.95 | -10.68 | 235.05 | -7.52 | 136.73 | 0.1886 | 917.0 | 709.5 | |
| 0.00 | 1.08 | 0.00 | 0.54 | -9.64 | 234.96 | -7.62 | 132.24 | 0.1774 | 914.0 | 795.8 | |
| 0.63 | 1.70 | 0.32 | 0.86 | -10.47 | 234.90 | -7.67 | 135.37 | 0.1877 | 1051.7 | 892.9 | |
| 0.00 | 1.44 | 0.00 | 0.72 | -9.83 | 234.89 | -7.69 | 132.76 | 0.1804 | 878.0 | 664.4 | |
| 0.00 | 1.08 | 0.00 | 0.54 | -10.04 | 234.85 | -7.72 | 133.50 | 0.1833 | 931.0 | 716.3 | |
| 0.00 | 2.24 | 0.00 | 1.13 | -10.28 | 234.85 | -7.73 | 134.45 | 0.1862 | 1002.0 | 905.0 | |
| 0.00 | 1.44 | 0.00 | 0.73 | -14.18 | 234.44 | -8.14 | 145.14 | 0.2411 | 946.0 | 818.6 | |
| 2.96 | 4.58 | 1.50 | 2.32 | -11.47 | 234.47 | -8.11 | 137.43 | 0.2052 | 1031.5 | 730.8 | |
| 0.00 | 1.26 | 0.00 | 0.64 | -13.93 | 234.36 | -8.22 | 144.24 | 0.2386 | 928.0 | 805.5 | |
| 0.00 | 1.44 | 0.00 | 0.72 | -4.81 | 234.52 | -8.06 | 103.95 | 0.1445 | 913.0 | 636.5 | |
| 0.00 | 6.28 | 0.00 | 3.17 | -10.19 | 234.38 | -8.19 | 132.43 | 0.1909 | 941.0 | 742.9 | |
| 0.54 | 4.75 | 0.27 | 2.38 | -6.60 | 234.43 | -8.14 | 115.08 | 0.1561 | 1045.5 | 796.1 | |
| 0.00 | 2.51 | 0.00 | 1.28 | -14.55 | 234.17 | -8.40 | 145.17 | 0.2488 | 961.0 | 853.2 | |
| 0.00 | 1.17 | 0.00 | 0.59 | -9.67 | 234.27 | -8.30 | 129.94 | 0.1866 | 857.0 | 652.0 | |
| 0.00 | 1.35 | 0.00 | 0.67 | -5.26 | 234.36 | -8.22 | 106.67 | 0.1492 | 954.0 | 798.1 | |
| 0.00 | 1.70 | 0.00 | 0.85 | -4.90 | 234.27 | -8.30 | 104.15 | 0.1490 | 1138.0 | 918.1 | |
| 0.00 | 1.08 | 0.00 | 0.55 | -15.29 | 233.83 | -8.75 | 145.80 | 0.2623 | 823.0 | 703.8 | |
| 0.00 | 1.61 | 0.00 | 0.82 | -10.22 | 234.01 | -8.57 | 131.29 | 0.1960 | 778.0 | 694.0 | |
| 0.00 | 1.08 | 0.00 | 0.54 | -8.72 | 234.02 | -8.56 | 124.96 | 0.1803 | 736.0 | 597.3 | |
| 0.00 | 1.53 | 0.00 | 0.77 | -6.02 | 234.04 | -8.53 | 110.72 | 0.1585 | 908.0 | 669.1 | |
| 0.00 | 1.08 | 0.00 | 0.55 | -14.36 | 233.74 | -8.84 | 143.36 | 0.2505 | 957.0 | 722.8 | |
| 0.00 | 1.53 | 0.00 | 0.77 | -11.32 | 233.82 | -8.76 | 134.71 | 0.2110 | 794.0 | 519.3 | |
| 0.00 | 0.99 | 0.00 | 0.50 | -10.64 | 233.81 | -8.77 | 132.26 | 0.2034 | 700.0 | 583.5 | |
| 0.00 | 1.26 | 0.00 | 0.65 | -15.53 | 233.37 | -9.21 | 145.00 | 0.2700 | 831.0 | 622.9 | |
| 0.00 | 10.50 | 0.00 | 5.31 | -10.67 | 233.53 | -9.05 | 131.48 | 0.2073 | 669.0 | 698.5 | |
| 0.00 | 0.90 | 0.00 | 0.46 | -13.98 | 233.12 | -9.45 | 140.56 | 0.2520 | 827.0 | 733.2 | |
| 0.00 | 1.35 | 0.00 | 0.68 | -4.86 | 233.35 | -9.22 | 102.61 | 0.1644 | 881.0 | 672.3 | |
| 0.00 | 0.72 | 0.00 | 0.37 | -12.94 | 233.07 | -9.51 | 137.52 | 0.2394 | 880.0 | 756.9 | |
| 0.00 | 0.99 | 0.00 | 0.50 | -4.86 | 232.95 | -9.62 | 102.10 | 0.1712 | 646.0 | 352.5 | |
| 0.00 | 1.44 | 0.00 | 0.73 | -9.96 | 232.58 | -9.99 | 126.07 | 0.2124 | -989.0 | -799.4 | |
| 0.00 | 1.61 | 0.00 | 0.83 | -13.85 | 232.37 | -10.21 | 138.08 | 0.2587 | 933.0 | 726.2 | |
| 0.00 | 1.26 | 0.00 | 0.64 | -9.68 | 232.06 | -10.52 | 123.64 | 0.2171 | 639.0 | 396.5 | |
| 0.00 | 0.45 | 0.00 | 0.23 | -16.02 | 231.65 | -10.93 | 141.45 | 0.2936 | 694.0 | 610.4 | |
| 0.00 | 0.99 | 0.00 | 0.51 | -15.89 | 231.50 | -11.08 | 140.79 | 0.2936 | 591.0 | 488.6 | |
| 0.00 | 0.99 | 0.00 | 0.50 | -10.53 | 231.69 | -10.89 | 125.91 | 0.2304 | -928.0 | -792.5 | |
| 0.54 | 1.88 | 0.27 | 0.96 | -10.38 | 231.50 | -11.07 | 124.92 | 0.2314 | -1129.5 | -877.5 | |
| 0.00 | 1.53 | 0.00 | 0.78 | -10.86 | 231.30 | -11.28 | 126.15 | 0.2390 | -865.0 | -668.2 | |
| 0.00 | 3.14 | 0.00 | 1.60 | -10.40 | 231.19 | -11.39 | 124.28 | 0.2361 | -882.0 | -667.4 | |
| 23.32 | 372.03 | 12.06 | 192.91 | -14.39 | 230.33 | -12.24 | 134.39 | 0.2887 | 1321.2 | 370.0 | |
| 22.97 | -62.00 | 11.88 | -62.00 | -14.14 | 230.00 | -12.58 | 132.99 | 0.2900 | 1354.9 | 999999 | |
| 6.37 | -62.00 | 3.30 | -62.00 | -14.44 | 229.82 | -12.76 | 133.39 | 0.2956 | 1061.5 | 999999 | |
| 0.00 | 1.35 | 0.00 | 0.69 | -11.98 | 229.86 | -12.72 | 126.58 | 0.2694 | -984.0 | -767.7 | |
| 0.00 | 2.33 | 0.00 | 1.20 | -12.25 | 229.72 | -12.86 | 127.12 | 0.2740 | -1039.0 | -884.3 | |
| 0.00 | 1.17 | 0.00 | 0.60 | -11.86 | 229.74 | -12.84 | 125.95 | 0.2699 | -730.0 | -634.2 | |
| 3.86 | -62.00 | 2.01 | -62.00 | -14.68 | 229.29 | -13.29 | 132.87 | 0.3047 | 951.3 | 999999 | |
| 15.34 | -62.00 | 7.98 | -62.00 | -14.59 | 228.94 | -13.64 | 131.91 | 0.3079 | 1042.2 | 999999 | |
| 2.60 | -62.00 | 1.36 | -62.00 | -14.65 | 228.68 | -13.90 | 131.53 | 0.3118 | 876.2 | 999999 | |
| 0.00 | 1.26 | 0.00 | 0.65 | -14.09 | 228.62 | -13.96 | 130.00 | 0.3067 | 709.0 | 560.4 | |
| 0.00 | 1.26 | 0.00 | 0.65 | -13.72 | 228.51 | -14.06 | 128.83 | 0.3043 | 725.0 | 538.6 | |
| 0.00 | 1.17 | 0.00 | 0.60 | -11.07 | 228.38 | -14.20 | 120.97 | 0.2820 | -731.0 | -579.6 | |
| 0.00 | 1.17 | 0.00 | 0.60 | -11.90 | 228.27 | -14.31 | 123.29 | 0.2906 | -975.0 | -779.6 | |
| 0.00 | 1.79 | 0.00 | 0.94 | -13.80 | 227.96 | -14.62 | 128.02 | 0.3124 | 850.0 | 634.6 | |
| 1.97 | -62.00 | 1.03 | -62.00 | -14.91 | 227.72 | -14.85 | 130.37 | 0.3265 | 712.8 | 999999 | |
| 0.00 | 1.70 | 0.00 | 0.88 | -11.46 | 227.81 | -14.76 | 121.22 | 0.2933 | -791.0 | -658.4 | |
| 0.00 | 8.88 | 0.00 | 4.63 | -13.67 | 227.65 | -14.93 | 127.12 | 0.3153 | 622.0 | 323.3 | |
| 0.00 | 1.17 | 0.00 | 0.61 | -14.69 | 227.42 | -15.16 | 129.27 | 0.3282 | 445.0 | 398.2 | |
| 0.00 | 1.79 | 0.00 | 0.94 | -13.67 | 227.00 | -15.57 | 125.98 | 0.3238 | 762.0 | 433.2 | |
| 0.00 | 1.53 | 0.00 | 0.80 | -12.83 | 226.61 | -15.97 | 123.14 | 0.3218 | -794.0 | -630.6 | |
| 0.00 | 2.24 | 0.00 | 1.18 | -14.74 | 226.40 | -16.17 | 127.66 | 0.3418 | -875.0 | -796.2 | |
| 0.00 | 1.79 | 0.00 | 0.94 | -12.86 | 226.48 | -16.10 | 123.01 | 0.3239 | -1015.0 | -856.7 | |
| 0.00 | 1.17 | 0.00 | 0.61 | -12.46 | 226.34 | -16.24 | 121.72 | 0.3224 | -1000.0 | -801.2 | |
| 0.00 | 2.96 | 0.00 | 1.58 | -17.35 | 225.88 | -16.70 | 132.62 | 0.3742 | 531.0 | 290.6 | |
| 0.63 | 85.05 | 0.33 | 44.88 | -13.25 | 226.16 | -16.42 | 123.56 | 0.3316 | 640.6 | -516.7 | |
| 0.00 | 1.53 | 0.00 | 0.80 | -12.70 | 226.19 | -16.38 | 122.16 | 0.3264 | -787.0 | -667.0 | |
| 0.00 | 2.06 | 0.00 | 1.15 | -23.44 | 224.83 | -17.75 | 141.68 | 0.4529 | 852.0 | 569.2 | |
| 0.00 | 2.96 | 0.00 | 1.57 | -15.56 | 225.61 | -16.96 | 128.33 | 0.3598 | -209.0 | -192.7 | |
| 0.00 | 1.17 | 0.00 | 0.65 | -23.70 | 224.58 | -17.99 | 141.70 | 0.4582 | 750.0 | 661.3 | |
| 1.53 | 37.86 | 0.81 | 20.16 | -16.09 | 225.37 | -17.21 | 129.12 | 0.3679 | -740.4 | -684.4 | |
| 1.08 | -91.00 | 0.57 | -91.00 | -16.15 | 225.17 | -17.41 | 128.94 | 0.3711 | -876.3 | 999999 | |
| 3.05 | -86.00 | 1.61 | -86.00 | -13.46 | 225.36 | -17.22 | 122.90 | 0.3443 | -1053.4 | 999999 | |
| 4.13 | -86.00 | 2.17 | -86.00 | -13.24 | 225.38 | -17.20 | 122.38 | 0.3423 | -1119.2 | 999999 | |
| 0.00 | 1.35 | 0.00 | 0.72 | -16.99 | 225.05 | -17.52 | 130.56 | 0.3807 | -875.0 | -665.7 | |
| 12.02 | -86.00 | 6.36 | -86.00 | -14.32 | 225.23 | -17.35 | 124.83 | 0.3535 | -1140.1 | 999999 | |
| 0.00 | 0.90 | 0.00 | 0.48 | -15.53 | 225.06 | -17.52 | 127.39 | 0.3666 | -1056.0 | -873.8 | |
| 2.96 | -86.00 | 1.57 | -86.00 | -13.82 | 225.01 | -17.57 | 123.30 | 0.3523 | -1183.4 | 999999 | |
| 0.00 | 0.72 | 0.00 | 0.39 | -18.11 | 224.60 | -17.97 | 132.16 | 0.3973 | -822.0 | -673.6 | |
| 0.00 | 2.24 | 0.00 | 1.19 | -14.99 | 224.81 | -17.77 | 125.81 | 0.3650 | -840.0 | -570.5 | |
| 0.00 | 1.35 | 0.00 | 0.73 | -18.36 | 224.41 | -18.17 | 132.35 | 0.4021 | -720.0 | -704.0 | |
| 0.00 | 1.79 | 0.00 | 0.95 | -12.56 | 224.94 | -17.64 | 120.02 | 0.3431 | -1042.0 | -845.2 | |
| 0.00 | 0.99 | 0.00 | 0.52 | -14.03 | 224.79 | -17.79 | 123.52 | 0.3570 | -914.0 | -738.5 | |
| 0.00 | 1.53 | 0.00 | 0.82 | -15.89 | 224.50 | -18.08 | 127.37 | 0.3772 | -808.0 | -707.2 | |
| 3.05 | 7.98 | 1.62 | 4.25 | -14.68 | 224.54 | -18.04 | 124.69 | 0.3659 | -1092.7 | -858.4 | |
| 0.00 | 1.97 | 0.00 | 1.05 | -15.51 | 224.33 | -18.24 | 126.30 | 0.3759 | -836.0 | -735.3 | |
| 0.00 | 0.99 | 0.00 | 0.53 | -14.46 | 224.36 | -18.22 | 123.93 | 0.3664 | -695.0 | -592.3 | |
| 0.00 | 0.99 | 0.00 | 0.53 | -14.77 | 224.14 | -18.44 | 124.34 | 0.3720 | -898.0 | -762.7 | |
| 0.00 | 3.14 | 0.00 | 1.68 | -15.94 | 223.99 | -18.58 | 126.77 | 0.3842 | -626.0 | -574.1 | |
| 0.00 | 1.17 | 0.00 | 0.62 | -15.20 | 223.90 | -18.68 | 124.99 | 0.3789 | -886.0 | -800.3 | |
| 0.00 | 3.59 | 0.00 | 1.92 | -15.01 | 223.88 | -18.69 | 124.55 | 0.3775 | -872.0 | -630.7 | |
| 0.00 | 1.79 | 0.00 | 0.96 | -15.78 | 223.68 | -18.90 | 125.99 | 0.3869 | -440.0 | -474.8 | |
| 0.00 | 0.90 | 0.00 | 0.49 | -18.97 | 223.22 | -19.35 | 131.81 | 0.4222 | -692.0 | -436.4 | |
| 13.37 | 17.13 | 7.18 | 9.20 | -15.47 | 223.47 | -19.10 | 125.03 | 0.3868 | -1057.8 | -751.3 | |
| 0.00 | 1.17 | 0.00 | 0.63 | -15.00 | 223.32 | -19.26 | 123.79 | 0.3849 | -904.0 | -789.8 | |
| 0.00 | 1.88 | 0.00 | 1.01 | -14.35 | 223.31 | -19.26 | 122.30 | 0.3797 | -1088.0 | -957.9 | |
| 0.00 | 1.44 | 0.00 | 0.77 | -15.31 | 223.09 | -19.49 | 124.17 | 0.3906 | -693.0 | -507.4 | |
| 0.00 | 1.44 | 0.00 | 0.77 | -14.22 | 223.09 | -19.48 | 121.73 | 0.3818 | -732.0 | -556.0 | |
| 0.00 | 1.79 | 0.00 | 0.96 | -12.65 | 223.20 | -19.38 | 118.11 | 0.3687 | -826.0 | -700.5 | |
| 0.00 | 2.87 | 0.00 | 1.57 | -18.86 | 222.52 | -20.05 | 130.66 | 0.4296 | -967.0 | -851.6 | |
| 0.00 | 5.20 | 0.00 | 2.79 | -14.78 | 222.98 | -19.60 | 122.85 | 0.3878 | -763.0 | -696.3 | |
| 0.00 | 1.17 | 0.00 | 0.63 | -15.43 | 222.88 | -19.70 | 124.17 | 0.3944 | -681.0 | -546.5 | |
| 15.70 | 55.89 | 8.53 | 30.37 | -17.29 | 222.64 | -19.93 | 127.78 | 0.4136 | 1131.5 | 486.8 | |
| 0.00 | 2.69 | 0.00 | 1.45 | -15.29 | 222.42 | -20.15 | 123.32 | 0.3994 | -797.0 | -632.0 | |
| 0.00 | 1.08 | 0.00 | 0.59 | -15.62 | 221.62 | -20.96 | 123.06 | 0.4128 | -673.0 | -534.4 | |
| 0.00 | 1.26 | 0.00 | 0.70 | -19.24 | 220.55 | -22.03 | 128.88 | 0.4568 | -793.0 | -691.9 | |
| 0.00 | 1.08 | 0.00 | 0.59 | -16.10 | 220.72 | -21.86 | 123.04 | 0.4285 | -748.0 | -530.0 | |
| 0.00 | 0.90 | 0.00 | 0.49 | -16.04 | 220.45 | -22.13 | 122.61 | 0.4315 | -723.0 | -546.0 | |
| 0.00 | 0.72 | 0.00 | 0.42 | -22.76 | 217.83 | -24.75 | 131.77 | 0.5196 | -692.0 | -530.9 | |
| 0.00 | 1.08 | 0.00 | 0.61 | -19.63 | 217.83 | -24.75 | 126.61 | 0.4932 | -787.0 | -604.0 | |
| 0.00 | 3.32 | 0.00 | 1.88 | -18.77 | 217.86 | -24.72 | 125.14 | 0.4861 | -813.0 | -683.8 | |
| 0.00 | 0.90 | 0.00 | 0.52 | -21.07 | 216.82 | -25.76 | 128.04 | 0.5169 | -663.0 | -537.6 | |
| 0.00 | 0.99 | 0.00 | 0.59 | -23.49 | 215.48 | -27.10 | 130.55 | 0.5520 | -709.0 | -527.5 | |
| 0.00 | 1.44 | 0.00 | 0.83 | -19.05 | 216.14 | -26.44 | 124.01 | 0.5097 | -597.0 | -559.1 | |
| 0.00 | 1.17 | 0.00 | 0.68 | -20.72 | 215.62 | -26.96 | 126.34 | 0.5285 | -274.0 | -284.0 | |
| 0.00 | 0.90 | 0.00 | 0.54 | -24.22 | 214.71 | -27.87 | 130.93 | 0.5664 | -718.0 | -562.2 | |
| 0.00 | 0.81 | 0.00 | 0.46 | -16.94 | 215.74 | -26.84 | 119.92 | 0.5002 | -587.0 | -490.9 | |
| 0.00 | 0.72 | 0.00 | 0.50 | -20.29 | 200.02 | -42.56 | 116.18 | 0.7092 | -597.0 | -447.4 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
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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. | |