groupProj. UProj. WSCorr. UCorr. WS BLLCMPos. angler MU MP

11944 776.54 4106.18 389.32 2057.84 -9.58 98.58 2.94 204.25 0.1497 591.9 133.1


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SDO HMI 2014-01-08 03:00:24 UT

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spotProj. UProj. WSCorr. UCorr. WSBLLCMPos. angler MU MP

1 0.00 1.78 0.00 0.90 -4.50 105.81 10.17 265.85 0.1773 -857.0 -627.6
2 1.27 2015.68 0.64 1011.68 -8.42 105.70 10.06 244.84 0.1919 1009.5 417.2
3 0.00 1.02 0.00 0.52 -11.62 105.80 10.16 231.65 0.2214 -792.0 -651.2
4 380.19 -2.00 191.03 -2.00 -8.29 104.25 8.61 242.06 0.1685 1718.5 999999
5 0.00 1.53 0.00 0.77 -11.76 104.34 8.70 226.87 0.2039 -970.0 -774.1
6 0.00 2.72 0.00 1.36 -4.81 103.48 7.84 262.51 0.1377 -732.0 -550.8
7 0.93 -2.00 0.47 -2.00 -7.38 103.21 7.57 244.40 0.1456 936.5 999999
8 7.56 -2.00 3.79 -2.00 -7.68 102.98 7.34 241.84 0.1442 1432.6 999999
9 0.00 2.55 0.00 1.27 -4.70 102.55 6.91 262.50 0.1216 -702.0 -661.8
10 2.89 -2.00 1.45 -2.00 -8.63 102.55 6.90 234.68 0.1463 1125.8 999999
11 1.78 -2.00 0.89 -2.00 -7.47 102.50 6.86 241.55 0.1352 869.1 999999
12 1.27 -2.00 0.64 -2.00 -7.21 102.28 6.64 242.59 0.1299 1187.8 999999
13 0.59 -2.00 0.30 -2.00 -6.24 102.15 6.51 249.33 0.1210 1038.6 999999
14 13.26 -2.00 6.61 -2.00 -6.47 102.10 6.45 247.33 0.1216 1236.4 999999
15 0.00 0.93 0.00 0.48 -16.11 102.24 6.60 207.38 0.2413 686.0 568.3
16 0.85 -2.00 0.42 -2.00 -7.80 101.84 6.20 236.90 0.1284 1093.8 999999
17 0.00 0.93 0.00 0.47 -5.36 101.22 5.58 254.37 0.1010 -611.0 -393.3
18 0.00 5.86 0.00 2.92 -7.39 101.21 5.57 236.97 0.1153 900.0 758.9
19 0.00 2.29 0.00 1.14 -6.48 101.08 5.44 243.67 0.1056 957.0 687.7
20 13.26 -2.00 6.60 -2.00 -7.31 100.28 4.64 232.77 0.1013 1195.7 999999
21 1.61 -2.00 0.80 -2.00 -6.75 100.04 4.40 236.09 0.0922 -924.3 999999
22 0.00 1.36 0.00 0.68 -10.56 100.05 4.41 212.74 0.1404 945.0 806.6
23 2.12 -2.00 1.06 -2.00 -7.43 99.93 4.29 229.61 0.0978 1095.8 999999
24 2.63 -2.00 1.31 -2.00 -6.78 99.74 4.10 233.94 0.0883 -989.6 999999
25 0.00 1.70 0.00 0.85 -7.78 99.66 4.02 225.11 0.0985 897.0 740.3
26 0.00 3.23 0.00 1.61 -8.94 99.34 3.70 215.56 0.1102 737.0 669.7
27 1.19 -2.00 0.59 -2.00 -6.66 99.27 3.63 231.67 0.0805 -925.9 999999
28 0.00 2.72 0.00 1.38 -16.64 99.39 3.75 195.75 0.2317 871.0 703.1
29 0.34 1.95 0.17 0.97 -8.61 99.10 3.46 215.53 0.1032 997.5 613.9
30 0.00 1.19 0.00 0.59 -7.70 99.07 3.42 221.18 0.0903 1032.0 759.9
31 13.34 -2.00 6.63 -2.00 -6.66 99.03 3.39 229.77 0.0773 -1123.5 999999
32 6.46 -2.00 3.21 -2.00 -7.17 99.00 3.36 224.89 0.0828 203.5 999999
33 0.00 1.19 0.00 0.59 -5.72 99.00 3.35 240.30 0.0673 938.0 741.2
34 0.00 1.10 0.00 0.55 -7.61 98.86 3.22 220.06 0.0868 920.0 680.8
35 0.00 8.33 0.00 4.14 -8.17 98.74 3.10 215.20 0.0933 828.0 787.8
36 0.00 1.70 0.00 0.84 -5.81 98.70 3.06 236.79 0.0637 739.0 624.3
37 0.00 3.91 0.00 1.99 -16.64 98.77 3.13 193.27 0.2291 848.0 698.9
38 0.00 1.78 0.00 0.89 -7.82 98.65 3.01 216.72 0.0874 942.0 800.3
39 0.00 1.95 0.00 0.97 -5.51 98.58 2.94 239.88 0.0593 1010.0 733.7
40 0.00 2.72 0.00 1.35 -6.90 98.50 2.85 222.60 0.0734 717.0 582.3
41 0.00 4.42 0.00 2.20 -7.52 98.38 2.74 216.27 0.0805 870.0 866.3
42 0.00 2.89 0.00 1.43 -5.43 98.31 2.67 238.84 0.0545 820.0 714.3
43 0.00 2.97 0.00 1.48 -6.99 98.29 2.65 219.66 0.0722 897.0 780.5
44 0.00 1.87 0.00 0.93 -4.93 98.22 2.58 246.72 0.0491 903.0 575.4
45 0.00 0.93 0.00 0.46 -7.88 98.17 2.53 211.75 0.0836 846.0 624.8
46 0.00 1.44 0.00 0.72 -7.34 98.11 2.47 214.82 0.0752 904.0 810.8
47 0.00 1.10 0.00 0.55 -7.67 98.08 2.44 212.18 0.0797 1004.0 824.8
48 0.00 1.27 0.00 0.63 -6.08 98.08 2.44 227.04 0.0580 774.0 636.9
49 0.00 1.10 0.00 0.55 -7.91 97.97 2.32 209.42 0.0822 936.0 828.5
50 0.00 1.27 0.00 0.63 -7.11 97.75 2.11 212.54 0.0683 976.0 863.7
51 1.70 7.48 0.84 3.71 -7.46 97.70 2.05 209.24 0.0731 1200.3 949.1
52 0.00 0.85 0.00 0.43 -16.76 97.45 1.81 187.68 0.2271 850.0 693.8
53 115.83 579.55 57.81 289.34 -10.66 97.38 1.74 194.06 0.1233 1499.9 436.3
54 10.11 -53.00 5.04 -53.00 -9.65 97.32 1.68 195.84 0.1061 1266.6 999999
55 0.00 27.45 0.00 13.63 -7.79 97.31 1.67 202.65 0.0753 683.0 686.7
56 1.61 -53.00 0.81 -53.00 -11.40 97.29 1.65 192.10 0.1355 846.2 999999
57 0.00 1.78 0.00 0.89 -7.55 96.63 0.98 194.68 0.0676 -77.0 -97.5
58 0.00 1.10 0.00 0.55 -8.17 96.36 0.72 189.28 0.0772 -17.0 -113.5
59 0.00 0.76 0.00 0.38 -8.08 96.24 0.60 187.92 0.0754 -503.0 -430.3
60 0.00 5.10 0.00 2.53 -8.70 96.21 0.57 186.58 0.0861 604.0 747.8
61 1.36 11.22 0.68 5.58 -9.00 96.03 0.39 184.26 0.0909 1023.9 716.5
62 3.31 100.95 1.65 50.24 -9.56 95.88 0.24 182.37 0.1006 1104.0 -152.0
63 1.61 -62.00 0.80 -62.00 -9.74 95.85 0.21 182.01 0.1036 930.6 999999
64 0.00 1.27 0.00 0.63 -8.97 95.79 0.15 181.66 0.0902 -18.0 8.5
65 0.00 3.74 0.00 1.85 -4.96 95.56 -0.08 175.89 0.0199 -979.0 -732.2
66 0.00 6.71 0.00 3.33 -8.17 95.29 -0.35 175.39 0.0764 -1108.0 -839.5
67 0.00 3.14 0.00 1.57 -10.57 94.92 -0.72 174.00 0.1187 777.0 782.5
68 0.00 1.87 0.00 0.93 -7.37 94.93 -0.71 168.79 0.0634 -845.0 -748.4
69 0.00 1.95 0.00 0.97 -8.08 94.84 -0.80 169.45 0.0759 -847.0 -792.4
70 0.00 1.19 0.00 0.59 -10.42 94.80 -0.84 172.86 0.1163 904.0 850.0
71 0.51 19.21 0.25 9.53 -7.31 94.69 -0.95 164.94 0.0633 -1189.5 -465.3
72 1.61 -71.00 0.80 -71.00 -7.17 94.64 -1.01 163.38 0.0611 -1138.6 999999
73 3.06 21.92 1.53 10.94 -10.69 94.59 -1.05 171.43 0.1214 1060.0 491.9
74 1.36 -62.00 0.68 -62.00 -9.35 94.60 -1.04 169.44 0.0985 -1260.6 999999
75 0.00 0.85 0.00 0.42 -11.40 94.59 -1.05 172.22 0.1337 653.0 454.7
76 0.00 2.12 0.00 1.06 -11.93 94.53 -1.12 172.31 0.1431 703.0 557.5
77 0.00 0.76 0.00 0.38 -9.80 94.42 -1.23 168.56 0.1067 -823.0 -718.0
78 0.00 1.36 0.00 0.68 -8.79 94.33 -1.31 165.38 0.0899 -649.0 -533.1
79 0.00 2.29 0.00 1.14 -9.56 94.18 -1.46 165.86 0.1036 -1170.0 -896.9
80 3.99 837.71 1.99 420.68 -10.33 94.08 -1.56 166.73 0.1170 1118.8 -315.8
81 1.78 14.62 0.89 7.25 -7.19 94.10 -1.54 155.61 0.0649 -1139.1 -750.7
82 0.00 1.95 0.00 0.97 -5.42 94.05 -1.59 135.31 0.0395 -1130.0 -869.3
83 3.74 44.19 1.86 21.99 -9.14 93.79 -1.85 161.05 0.0985 -1290.3 -686.7
84 0.00 2.21 0.00 1.10 -11.46 93.78 -1.87 166.50 0.1373 785.0 661.5
85 0.68 -83.00 0.34 -83.00 -9.29 93.73 -1.91 160.97 0.1013 -1315.1 999999
86 1.70 -83.00 0.85 -83.00 -8.73 93.68 -1.97 158.38 0.0925 -1058.1 999999
87 0.00 0.68 0.00 0.34 -7.43 93.68 -1.96 151.70 0.0718 -759.0 -639.5
88 0.00 0.93 0.00 0.47 -9.47 93.67 -1.97 160.98 0.1046 -990.0 -833.3
89 0.00 0.85 0.00 0.42 -1.95 93.68 -1.96 46.31 0.0476 959.0 764.6
90 0.00 2.12 0.00 1.06 -7.63 93.53 -2.11 151.28 0.0762 -993.0 -817.2
91 0.00 0.68 0.00 0.34 -1.59 93.53 -2.11 43.43 0.0538 851.0 679.6
92 2.29 6.80 1.14 3.38 -7.93 93.41 -2.23 151.74 0.0817 -1137.3 -849.0
93 0.00 1.53 0.00 0.77 -13.66 93.33 -2.31 167.10 0.1762 896.0 611.7
94 5.78 19.88 2.88 9.91 -9.64 93.31 -2.33 158.44 0.1096 -1254.8 -969.1
95 3.06 -94.00 1.52 -94.00 -9.32 93.25 -2.39 156.78 0.1048 -1151.4 999999
96 0.00 2.12 0.00 1.06 -8.61 93.14 -2.50 152.66 0.0944 -908.0 -779.9
97 0.00 1.36 0.00 0.68 -9.88 93.04 -2.60 157.04 0.1152 -1062.0 -863.1
98 1.87 -80.00 0.93 -80.00 -10.03 92.92 -2.72 156.61 0.1184 -1214.3 999999
99 0.00 1.10 0.00 0.55 -8.64 92.93 -2.71 150.90 0.0966 -764.0 -575.7
100 0.00 1.36 0.00 0.68 -9.73 92.89 -2.75 155.34 0.1139 -1031.0 -878.2
101 0.00 0.42 0.00 0.21 -13.66 92.85 -2.79 164.51 0.1782 688.0 565.0
102 0.00 1.19 0.00 0.59 -10.27 92.80 -2.85 156.49 0.1230 -1000.0 -779.6
103 0.00 1.10 0.00 0.55 -8.40 92.78 -2.86 148.30 0.0943 -812.0 -638.9
104 0.00 1.53 0.00 0.76 -8.69 92.60 -3.04 148.34 0.1003 -867.0 -582.7
105 0.00 1.19 0.00 0.59 -10.32 92.53 -3.12 154.73 0.1259 -927.0 -697.9
106 0.00 1.10 0.00 0.55 -7.72 92.52 -3.12 141.60 0.0872 -783.0 -693.6
107 0.00 1.19 0.00 0.59 -8.13 92.49 -3.15 144.10 0.0933 -1033.0 -900.5
108 0.00 1.78 0.00 0.90 -14.71 92.41 -3.24 163.88 0.1976 756.0 542.4
109 0.00 1.02 0.00 0.51 -9.94 92.38 -3.26 152.27 0.1210 -1037.0 -865.0
110 0.00 3.31 0.00 1.65 -7.95 92.34 -3.30 141.68 0.0924 -1028.0 -855.4
111 0.00 1.95 0.00 0.97 -6.10 92.36 -3.29 124.90 0.0698 -882.0 -642.7
112 0.00 1.61 0.00 0.80 -8.66 92.12 -3.52 144.33 0.1045 -1155.0 -900.1
113 6.37 -80.00 3.20 -80.00 -12.58 91.98 -3.66 157.77 0.1654 871.1 999999
114 0.00 2.72 0.00 1.38 -15.12 91.94 -3.70 162.37 0.2067 -794.0 -561.0
115 0.00 8.84 0.00 4.40 -8.04 91.89 -3.75 138.70 0.0985 -741.0 -875.6
116 22.18 -80.00 11.13 -80.00 -12.13 91.81 -3.83 155.69 0.1595 -1245.4 999999
117 0.00 1.02 0.00 0.51 -8.57 91.86 -3.78 141.80 0.1060 -1142.0 -990.7
118 0.93 1.95 0.47 0.97 -7.74 91.78 -3.87 135.74 0.0962 -1055.3 -839.0
119 0.00 0.93 0.00 0.47 -8.96 91.76 -3.88 143.29 0.1123 -1012.0 -799.7
120 0.00 0.93 0.00 0.47 -8.81 91.73 -3.91 142.28 0.1106 -1042.0 -820.5
121 14.79 -80.00 7.41 -80.00 -11.54 91.64 -4.00 153.01 0.1515 -1290.8 999999
122 0.00 2.46 0.00 1.23 -8.66 91.65 -3.99 140.81 0.1095 -1002.0 -860.1
123 1.78 -80.00 0.89 -80.00 -10.79 91.56 -4.08 150.07 0.1409 -1214.2 999999
124 4.67 -80.00 2.34 -80.00 -11.21 91.52 -4.12 151.30 0.1474 -1438.3 999999
125 0.00 1.87 0.00 0.93 -9.73 91.54 -4.10 145.63 0.1254 -1059.0 -826.2
126 0.00 0.85 0.00 0.42 -8.81 91.56 -4.09 141.03 0.1125 -1049.0 -794.1
127 0.00 2.72 0.00 1.35 -8.04 91.45 -4.20 135.48 0.1038 -937.0 -795.4
128 0.00 18.02 0.00 8.98 -8.60 91.41 -4.23 138.83 0.1114 -724.0 -798.0
129 12.07 -80.00 6.08 -80.00 -13.50 91.30 -4.34 156.38 0.1846 1000.3 999999
130 0.00 1.53 0.00 0.77 -14.91 91.27 -4.37 159.07 0.2070 -953.0 -667.9
131 0.00 0.85 0.00 0.42 -9.96 91.36 -4.28 145.53 0.1305 -937.0 -776.0
132 5.35 -80.00 2.68 -80.00 -11.24 91.25 -4.39 149.84 0.1502 -1295.3 999999
133 0.00 6.71 0.00 3.34 -8.10 91.09 -4.56 133.53 0.1090 -300.0 -723.9
134 0.00 1.44 0.00 0.72 -8.42 91.02 -4.62 135.25 0.1137 -1105.0 -925.0
135 4.42 -80.00 2.22 -80.00 -12.39 90.90 -4.74 151.58 0.1705 -1033.7 999999
136 0.00 3.40 0.00 1.70 -11.03 90.92 -4.72 147.26 0.1500 -1101.0 -931.8
137 6.97 14.45 3.49 7.23 -10.61 90.81 -4.83 145.04 0.1452 -1209.4 -875.6
138 2.04 -80.00 1.03 -80.00 -12.90 90.77 -4.88 152.33 0.1792 -1031.2 999999
139 0.00 1.78 0.00 0.90 -14.91 90.72 -4.92 156.70 0.2105 -963.0 -813.9
140 1.02 2.63 0.51 1.32 -11.35 90.77 -4.88 147.59 0.1562 -1118.1 -994.7
141 0.00 3.06 0.00 1.54 -11.92 90.73 -4.92 149.27 0.1648 -619.0 -783.5
142 0.00 1.02 0.00 0.52 -15.48 90.58 -5.06 157.21 0.2204 -942.0 -781.5
143 6.03 -80.00 3.03 -80.00 -12.36 90.60 -5.05 149.99 0.1726 -1082.6 999999
144 16.23 30.17 8.11 15.08 -9.72 90.61 -5.03 140.01 0.1350 -1223.3 -816.4
145 2.55 7.48 1.28 3.75 -10.85 90.50 -5.14 144.33 0.1515 -1226.8 -943.7
146 0.00 5.27 0.00 2.64 -11.29 90.47 -5.18 145.81 0.1582 -946.0 -821.9
147 0.00 6.46 0.00 3.22 -8.68 90.45 -5.19 133.53 0.1239 -718.0 -786.6
148 0.00 2.46 0.00 1.24 -11.94 90.33 -5.31 147.39 0.1688 -1344.0 -1076.2
149 0.00 0.93 0.00 0.48 -20.09 90.00 -5.64 161.79 0.2966 -785.0 -644.1
150 0.00 0.85 0.00 0.43 -11.53 90.22 -5.42 145.42 0.1639 -1001.0 -882.1
151 3.31 9.01 1.66 4.52 -11.08 90.17 -5.47 143.52 0.1582 -1128.9 -879.7
152 3.06 10.88 1.53 5.44 -9.83 90.16 -5.48 138.14 0.1417 -1023.0 -714.6
153 11.39 -80.00 5.75 -80.00 -13.28 90.00 -5.64 149.83 0.1914 -1291.0 999999
154 0.00 4.50 0.00 2.25 -9.30 90.08 -5.56 135.04 0.1360 -120.0 -191.2
155 0.00 0.93 0.00 0.47 -12.00 90.00 -5.64 145.99 0.1728 -1093.0 -799.4
156 0.00 1.70 0.00 0.85 -10.69 90.02 -5.62 141.27 0.1544 -854.0 -801.8
157 0.00 0.51 0.00 0.25 -8.44 90.04 -5.61 129.92 0.1266 -652.0 -476.5
158 0.00 2.38 0.00 1.20 -11.82 89.91 -5.73 144.98 0.1711 -933.0 -873.3
159 0.00 0.76 0.00 0.38 -10.25 89.94 -5.70 138.95 0.1495 -818.0 -697.8
160 11.30 -80.00 5.71 -80.00 -13.76 89.83 -5.81 150.38 0.1998 -1220.5 999999
161 0.00 6.12 0.00 3.06 -9.65 89.86 -5.78 135.77 0.1429 -768.0 -609.8
162 3.23 11.22 1.63 5.65 -12.33 89.75 -5.89 145.91 0.1798 -1088.6 -796.6
163 0.00 1.61 0.00 0.81 -7.17 89.82 -5.83 120.24 0.1171 -956.0 -737.3
164 0.00 3.57 0.00 1.79 -11.08 89.72 -5.93 141.33 0.1629 -985.0 -845.0
165 0.00 1.36 0.00 0.68 -11.52 89.71 -5.94 142.97 0.1690 -982.0 -816.8
166 0.00 0.85 0.00 0.43 -10.60 89.70 -5.95 139.30 0.1569 -764.0 -629.6
167 0.00 1.10 0.00 0.55 -10.04 89.59 -6.06 136.28 0.1510 -867.0 -692.8
168 13.43 -80.00 6.79 -80.00 -13.64 89.47 -6.17 148.55 0.2012 -1298.8 999999
169 0.00 1.27 0.00 0.65 -15.89 89.37 -6.27 153.36 0.2354 -851.0 -628.4
170 0.00 2.63 0.00 1.32 -11.73 89.46 -6.18 142.60 0.1744 -900.0 -944.5
171 0.00 4.67 0.00 2.35 -12.12 89.42 -6.22 143.76 0.1801 -1210.0 -973.7
172 1.78 -80.00 0.90 -80.00 -13.82 89.28 -6.36 148.27 0.2054 -929.7 999999
173 0.00 1.10 0.00 0.55 -3.69 89.47 -6.17 88.95 0.1079 -993.0 -775.6
174 0.00 1.36 0.00 0.68 -11.19 89.17 -6.47 139.32 0.1704 -911.0 -696.8
175 3.14 15.98 1.58 8.05 -11.99 89.06 -6.58 141.81 0.1822 -1050.4 -821.9
176 0.00 4.08 0.00 2.05 -11.52 89.04 -6.60 140.01 0.1761 -609.0 -867.4
177 0.00 2.89 0.00 1.46 -12.50 88.77 -6.87 142.33 0.1920 -743.0 -709.7
178 0.00 3.40 0.00 1.71 -11.75 88.73 -6.91 139.60 0.1826 -775.0 -716.2
179 0.00 1.44 0.00 0.73 -12.70 88.61 -7.03 142.38 0.1964 -1001.0 -853.6
180 0.00 1.19 0.00 0.60 -12.11 88.60 -7.04 140.34 0.1887 -874.0 -720.8
181 0.00 1.70 0.00 0.86 -11.66 88.37 -7.27 137.83 0.1855 -828.0 -649.2
182 0.00 1.44 0.00 0.73 -12.17 88.32 -7.32 139.47 0.1925 -929.0 -719.5
183 0.00 2.38 0.00 1.20 -12.79 88.18 -7.46 141.02 0.2021 -883.0 -694.9
184 0.00 4.25 0.00 2.15 -13.06 88.08 -7.56 141.50 0.2067 -851.0 -694.9
185 0.00 4.50 0.00 2.28 -12.55 87.73 -7.91 138.60 0.2040 -539.0 -520.5
186 0.00 1.19 0.00 0.60 -10.91 87.75 -7.89 132.62 0.1840 -774.0 -597.4
187 0.00 2.89 0.00 1.45 -10.20 87.59 -8.05 129.01 0.1782 -980.0 -709.6
188 0.00 1.27 0.00 0.64 -9.99 87.48 -8.17 127.69 0.1776 -909.0 -743.9
189 0.00 1.61 0.00 0.81 -7.50 87.32 -8.32 114.33 0.1581 -786.0 -542.7
190 0.00 1.53 0.00 0.78 -13.17 86.95 -8.69 137.94 0.2207 -837.0 -666.3
191 0.00 0.68 0.00 0.34 -12.33 86.92 -8.72 135.10 0.2109 -799.0 -669.2
192 0.00 1.95 0.00 1.00 -14.00 86.67 -8.97 139.56 0.2343 -750.0 -616.8


  • 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.