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

11944 704.13 3908.54 358.35 1984.41 -9.62 98.81 9.72 232.19 0.2120 577.6 139.4


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SDO HMI 2014-01-08 15:00:24 UT

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

1 0.00 1.10 0.00 0.58 -7.64 108.01 18.92 257.80 0.3303 727.0 529.3
2 0.00 1.87 0.00 0.98 -11.08 107.78 18.70 247.68 0.3417 483.0 356.5
3 2.38 1774.94 1.23 913.10 -7.43 105.13 16.05 256.69 0.2829 1039.2 436.2
4 358.61 -3.00 184.56 -3.00 -8.33 104.27 15.18 252.80 0.2725 1666.8 999999
5 1.19 -3.00 0.61 -3.00 -9.16 104.24 15.16 249.86 0.2762 1268.7 999999
6 0.93 -3.00 0.48 -3.00 -9.07 104.08 15.00 249.98 0.2732 1224.5 999999
7 0.68 -3.00 0.35 -3.00 -7.33 103.95 14.87 256.15 0.2634 1439.1 999999
8 0.00 3.14 0.00 1.61 -5.97 103.76 14.68 261.18 0.2562 399.0 270.1
9 1.36 -3.00 0.70 -3.00 -7.60 103.38 14.30 254.61 0.2550 1327.1 999999
10 0.00 1.44 0.00 0.74 -11.07 103.24 14.16 242.02 0.2731 -933.0 -641.9
11 0.00 0.93 0.00 0.48 -14.21 103.04 13.96 232.18 0.2974 853.0 673.4
12 1.53 -3.00 0.78 -3.00 -8.56 102.52 13.44 249.97 0.2458 1213.9 999999
13 2.97 -3.00 1.51 -3.00 -6.62 102.22 13.14 257.55 0.2323 1131.5 999999
14 0.76 -3.00 0.39 -3.00 -7.21 102.08 13.00 254.92 0.2322 1222.7 999999
15 10.28 -3.00 5.23 -3.00 -6.47 102.03 12.95 258.01 0.2287 1230.7 999999
16 1.70 -3.00 0.86 -3.00 -7.39 101.78 12.70 253.83 0.2281 1206.1 999999
17 0.59 7.48 0.30 3.80 -7.69 101.67 12.59 252.44 0.2276 1125.7 852.4
18 0.00 1.10 0.00 0.56 -4.86 101.60 12.52 264.98 0.2179 -440.0 -338.5
19 0.42 -17.00 0.22 -17.00 -7.87 101.43 12.35 251.37 0.2246 949.8 999999
20 1.70 5.69 0.86 2.89 -7.45 101.30 12.22 252.98 0.2204 1184.8 838.4
21 1.53 139.50 0.78 70.38 -6.99 101.04 11.96 254.77 0.2142 1191.2 116.2
22 0.00 1.10 0.00 0.56 -7.08 100.83 11.75 254.11 0.2111 864.0 706.1
23 0.00 0.93 0.00 0.47 -7.05 100.62 11.54 253.97 0.2075 596.0 494.5
24 0.00 0.93 0.00 0.47 -5.72 100.47 11.39 260.22 0.2003 898.0 715.8
25 0.00 0.59 0.00 0.31 -18.01 100.93 11.84 218.46 0.3153 666.0 522.9
26 10.03 -21.00 5.07 -21.00 -7.29 100.17 11.09 252.24 0.2013 1238.5 999999
27 0.00 0.93 0.00 0.47 -7.68 100.00 10.92 250.14 0.2005 751.0 645.6
28 1.44 -21.00 0.73 -21.00 -7.35 99.87 10.79 251.49 0.1967 1200.4 999999
29 1.27 -21.00 0.64 -21.00 -6.76 99.83 10.74 254.35 0.1931 -540.6 999999
30 0.00 6.12 0.00 3.09 -7.65 99.76 10.67 249.87 0.1964 991.0 796.0
31 0.68 -21.00 0.34 -21.00 -6.74 99.55 10.47 254.12 0.1885 -927.9 999999
32 0.00 3.06 0.00 1.54 -7.77 99.31 10.22 248.48 0.1899 580.0 644.7
33 5.27 -21.00 2.65 -21.00 -7.19 99.05 9.97 251.03 0.1825 697.1 999999
34 9.43 -21.00 4.75 -21.00 -6.63 98.92 9.84 253.81 0.1775 -1086.2 999999
35 0.00 4.93 0.00 2.48 -7.54 98.88 9.79 248.86 0.1817 1221.0 936.2
36 0.00 1.36 0.00 0.68 -8.07 98.80 9.72 245.98 0.1838 1001.0 811.9
37 0.00 1.87 0.00 0.94 -7.37 98.75 9.67 249.55 0.1786 1040.0 800.9
38 0.00 2.21 0.00 1.11 -7.22 98.57 9.49 249.99 0.1748 938.0 871.3
39 0.00 5.01 0.00 2.52 -5.72 98.33 9.25 258.23 0.1641 745.0 736.3
40 0.00 4.33 0.00 2.23 -17.03 98.64 9.55 214.75 0.2797 866.0 683.7
41 0.00 3.65 0.00 1.84 -7.25 98.27 9.19 249.23 0.1702 688.0 970.6
42 0.00 2.29 0.00 1.15 -7.70 98.13 9.04 246.49 0.1707 1009.0 894.9
43 0.34 1.78 0.17 0.90 -7.49 98.06 8.98 247.48 0.1683 1160.5 920.4
44 0.00 6.80 0.00 3.41 -8.06 97.59 8.51 243.23 0.1649 995.0 860.1
45 65.16 755.79 32.86 380.27 -10.81 97.45 8.36 229.57 0.1886 1573.0 300.9
46 10.70 -45.00 5.38 -45.00 -9.63 97.11 8.03 233.71 0.1717 1203.4 999999
47 0.00 1.10 0.00 0.55 -7.20 96.98 7.89 246.59 0.1492 709.0 599.5
48 35.00 -45.00 17.61 -45.00 -10.40 96.89 7.81 229.40 0.1768 1511.2 999999
49 0.00 1.53 0.00 0.76 -5.14 96.65 7.57 260.06 0.1338 -817.0 -614.5
50 0.00 1.19 0.00 0.60 -12.99 96.75 7.67 219.22 0.2065 -896.0 -687.2
51 0.00 1.27 0.00 0.64 -9.66 96.48 7.40 231.31 0.1634 1058.0 886.1
52 0.00 0.93 0.00 0.47 -9.60 96.30 7.22 230.91 0.1603 1027.0 814.4
53 0.00 1.70 0.00 0.85 -8.21 96.15 7.07 237.89 0.1445 785.0 597.3
54 1.36 -45.00 0.68 -45.00 -8.87 96.01 6.93 233.65 0.1488 1178.6 999999
55 0.00 1.02 0.00 0.51 -9.96 96.04 6.95 228.15 0.1608 964.0 821.2
56 0.00 1.19 0.00 0.59 -7.92 95.91 6.83 238.80 0.1383 -695.0 -627.7
57 0.00 1.95 0.00 0.97 -5.18 95.85 6.76 258.67 0.1202 -987.0 -796.2
58 4.25 -45.00 2.13 -45.00 -9.61 95.88 6.80 229.22 0.1548 1110.7 999999
59 0.00 2.04 0.00 1.02 -8.01 95.76 6.68 237.68 0.1369 -805.0 -654.3
60 0.00 0.59 0.00 0.30 -8.84 95.74 6.66 232.72 0.1447 703.0 639.7
61 0.85 -45.00 0.43 -45.00 -9.67 95.70 6.62 228.17 0.1531 840.2 999999
62 0.00 2.80 0.00 1.40 -5.18 95.61 6.52 258.28 0.1161 -805.0 -702.4
63 0.00 1.36 0.00 0.68 -8.04 95.31 6.23 235.68 0.1307 -850.0 -656.4
64 0.00 1.36 0.00 0.68 -8.07 95.01 5.93 234.17 0.1268 -1077.0 -880.1
65 0.00 4.84 0.00 2.41 -7.01 94.82 5.74 240.85 0.1142 -1193.0 -1027.6
66 0.00 1.10 0.00 0.55 -5.54 94.75 5.66 253.21 0.1031 -893.0 -707.8
67 0.59 -45.00 0.30 -45.00 -9.44 94.64 5.56 224.43 0.1372 -1221.6 999999
68 1.10 126.33 0.55 63.21 -10.95 94.58 5.49 217.23 0.1561 970.2 187.0
69 5.61 -68.00 2.81 -68.00 -10.27 94.54 5.45 219.88 0.1465 1213.9 999999
70 0.00 1.36 0.00 0.68 -9.70 94.44 5.35 222.01 0.1381 -802.0 -640.5
71 0.00 1.10 0.00 0.55 -7.10 94.26 5.17 237.55 0.1065 -1075.0 -941.1
72 0.00 2.38 0.00 1.19 -9.88 94.26 5.18 220.19 0.1384 -615.0 -424.1
73 1.95 -68.00 0.98 -68.00 -10.39 94.24 5.15 217.79 0.1449 898.6 999999
74 1.78 -45.00 0.89 -45.00 -9.62 94.20 5.11 221.14 0.1342 -1089.8 999999
75 0.00 2.89 0.00 1.45 -11.72 94.23 5.15 212.64 0.1636 923.0 798.4
76 1.44 -45.00 0.72 -45.00 -9.41 94.10 5.02 221.67 0.1305 -1166.9 999999
77 0.00 1.61 0.00 0.80 -7.28 94.05 4.97 235.07 0.1052 -1163.0 -908.4
78 0.00 2.46 0.00 1.24 -11.55 93.98 4.90 211.99 0.1587 938.0 725.3
79 2.72 -45.00 1.36 -45.00 -9.29 93.89 4.81 221.08 0.1265 -1226.5 999999
80 0.59 -45.00 0.30 -45.00 -9.50 93.89 4.81 220.02 0.1293 -1233.6 999999
81 0.00 4.25 0.00 2.13 -10.98 93.79 4.71 212.99 0.1488 188.0 174.5
82 0.00 2.04 0.00 1.02 -9.29 93.62 4.54 219.45 0.1235 -1195.0 -1016.6
83 0.00 1.02 0.00 0.51 -7.58 93.60 4.52 230.21 0.1022 -1071.0 -837.5
84 0.00 3.91 0.00 1.95 -8.97 93.56 4.48 220.81 0.1185 -1094.0 -893.4
85 0.00 1.70 0.00 0.85 -7.70 93.40 4.31 227.99 0.1008 -1021.0 -860.2
86 0.00 1.53 0.00 0.76 -10.69 93.43 4.35 212.02 0.1411 -580.0 -414.9
87 0.76 2.63 0.38 1.31 -9.29 93.29 4.21 217.36 0.1200 -1171.0 -872.7
88 0.00 2.38 0.00 1.19 -9.03 93.29 4.21 218.75 0.1163 -980.0 -863.1
89 8.16 12.15 4.07 6.06 -9.62 93.24 4.15 215.38 0.1239 -1174.0 -847.7
90 1.10 3.40 0.55 1.69 -8.02 93.22 4.14 224.46 0.1025 -1051.2 -938.0
91 0.00 2.12 0.00 1.06 -8.76 93.05 3.97 218.59 0.1101 -989.0 -733.5
92 0.00 0.59 0.00 0.30 -10.36 93.03 3.95 210.87 0.1328 -717.0 -641.0
93 4.16 -68.00 2.08 -68.00 -10.04 93.00 3.92 211.98 0.1276 -1203.2 999999
94 0.00 4.50 0.00 2.24 -8.62 92.78 3.70 217.49 0.1052 -641.0 -791.0
95 0.00 0.93 0.00 0.46 -5.93 92.76 3.68 240.37 0.0737 -852.0 -710.5
96 0.00 1.44 0.00 0.72 -8.38 92.57 3.48 217.29 0.0997 -1011.0 -871.3
97 0.00 1.61 0.00 0.80 -7.97 92.53 3.45 219.73 0.0937 -995.0 -842.7
98 0.00 0.85 0.00 0.42 -9.00 92.54 3.46 213.59 0.1082 -822.0 -675.9
99 0.00 4.42 0.00 2.20 -8.14 92.51 3.42 218.30 0.0958 -836.0 -636.1
100 0.00 1.70 0.00 0.84 -7.32 92.47 3.39 224.12 0.0846 -1010.0 -753.2
101 0.00 2.80 0.00 1.40 -9.92 92.43 3.35 208.56 0.1209 -869.0 -704.1
102 0.00 1.19 0.00 0.59 -9.47 92.43 3.34 210.42 0.1142 -931.0 -777.2
103 0.00 1.27 0.00 0.64 -14.81 92.46 3.37 196.67 0.1993 881.0 719.3
104 0.00 1.70 0.00 0.84 -7.70 92.38 3.30 220.37 0.0885 -978.0 -790.3
105 0.00 4.67 0.00 2.33 -8.44 92.30 3.22 214.76 0.0978 -1087.0 -955.7
106 0.00 1.61 0.00 0.80 -6.26 92.26 3.17 232.70 0.0695 -794.0 -606.3
107 1.87 723.84 0.93 363.09 -11.28 92.26 3.18 202.82 0.1410 -1109.1 -377.9
108 0.00 0.76 0.00 0.38 -10.07 92.25 3.17 206.70 0.1217 -994.0 -854.0
109 1.02 3.23 0.51 1.61 -8.12 92.12 3.04 215.20 0.0914 -1143.1 -901.2
110 0.00 11.30 0.00 5.63 -9.42 92.10 3.01 208.15 0.1105 -1010.0 -885.3
111 8.92 -107.00 4.48 -107.00 -12.59 92.10 3.01 198.65 0.1611 1108.2 999999
112 1.19 -107.00 0.60 -107.00 -12.18 92.09 3.01 199.52 0.1543 -962.9 999999
113 0.00 1.19 0.00 0.59 -8.00 91.94 2.86 214.33 0.0879 -916.0 -730.9
114 0.00 1.36 0.00 0.68 -8.77 91.91 2.83 209.68 0.0990 -1337.0 -1138.6
115 0.00 2.04 0.00 1.02 -9.74 91.92 2.84 205.43 0.1141 -1159.0 -899.8
116 0.00 4.93 0.00 2.45 -8.47 91.88 2.80 210.97 0.0943 -1135.0 -1025.5
117 19.20 -107.00 9.60 -107.00 -11.34 91.81 2.73 199.71 0.1391 -1274.6 999999
118 9.35 -107.00 4.68 -107.00 -12.12 91.82 2.74 197.99 0.1518 -1061.7 999999
119 3.06 -107.00 1.53 -107.00 -10.96 91.75 2.67 200.27 0.1325 -1165.5 999999
120 1.10 2.89 0.55 1.44 -7.94 91.67 2.59 212.12 0.0845 -996.5 -804.7
121 2.89 -107.00 1.45 -107.00 -12.57 91.67 2.59 196.24 0.1585 -421.4 999999
122 0.00 8.92 0.00 4.44 -8.56 91.55 2.47 207.47 0.0929 -1065.0 -904.0
123 0.00 0.93 0.00 0.47 -14.66 91.60 2.52 192.78 0.1931 -859.0 -630.2
124 0.00 1.95 0.00 0.97 -7.97 91.46 2.38 209.82 0.0831 -793.0 -651.2
125 11.81 -107.00 5.92 -107.00 -12.21 91.46 2.38 195.58 0.1515 -1125.4 999999
126 0.85 -107.00 0.43 -107.00 -11.88 91.46 2.37 196.18 0.1461 -1188.3 999999
127 0.00 2.63 0.00 1.31 -8.91 91.41 2.32 204.43 0.0973 -972.0 -831.8
128 0.00 4.42 0.00 2.20 -9.65 91.41 2.33 201.62 0.1092 -704.0 -816.1
129 0.00 2.04 0.00 1.02 -9.30 91.41 2.33 202.89 0.1035 -814.0 -721.0
130 9.94 -107.00 5.00 -107.00 -13.70 91.38 2.30 192.83 0.1762 1154.9 999999
131 0.00 1.61 0.00 0.80 -8.09 91.28 2.20 207.26 0.0834 -722.0 -544.6
132 0.00 1.53 0.00 0.76 -11.26 91.24 2.16 196.00 0.1346 -1211.0 -1027.8
133 0.00 3.82 0.00 1.91 -10.63 91.21 2.12 197.16 0.1241 -848.0 -946.2
134 0.00 0.93 0.00 0.47 -10.90 91.21 2.13 196.54 0.1285 -1063.0 -910.4
135 1.61 -107.00 0.81 -107.00 -11.82 91.18 2.10 194.52 0.1438 -1157.3 999999
136 0.00 1.36 0.00 0.68 -8.74 91.14 2.05 202.61 0.0926 -893.0 -776.8
137 0.59 -107.00 0.30 -107.00 -12.12 91.10 2.01 193.44 0.1485 -1032.3 999999
138 1.44 -107.00 0.72 -107.00 -12.33 91.07 1.98 192.93 0.1519 -972.4 999999
139 0.00 1.70 0.00 0.85 -11.55 91.03 1.95 193.97 0.1387 -1012.0 -901.0
140 0.00 0.85 0.00 0.43 -14.99 91.02 1.94 189.62 0.1968 -702.0 -541.1
141 0.00 1.78 0.00 0.89 -11.79 90.91 1.83 192.76 0.1422 -1172.0 -1006.7
142 1.19 5.86 0.59 2.93 -11.32 90.85 1.77 193.11 0.1339 -1277.7 -993.4
143 0.76 2.97 0.38 1.48 -10.99 90.82 1.74 193.47 0.1283 -1212.8 -1012.2
144 0.00 0.85 0.00 0.42 -8.06 90.81 1.72 202.13 0.0795 -853.0 -648.2
145 0.51 2.04 0.25 1.01 -8.50 90.78 1.70 199.88 0.0865 -1015.7 -897.6
146 7.31 34.49 3.64 17.19 -9.80 90.75 1.67 195.50 0.1080 -1208.6 -923.3
147 0.68 15.29 0.34 7.63 -10.54 90.76 1.67 193.85 0.1205 -1158.9 -979.2
148 1.78 -107.00 0.90 -107.00 -12.92 90.74 1.66 190.13 0.1608 -1035.5 999999
149 10.11 -107.00 5.06 -107.00 -12.36 90.70 1.62 190.60 0.1511 -1191.8 999999
150 1.10 -107.00 0.55 -107.00 -12.57 90.68 1.59 190.16 0.1546 -903.2 999999
151 0.00 1.19 0.00 0.59 -11.29 90.64 1.56 191.64 0.1326 -976.0 -754.9
152 1.19 -107.00 0.60 -107.00 -11.94 90.61 1.53 190.52 0.1437 -1256.2 999999
153 1.19 -146.00 0.59 -146.00 -10.01 90.60 1.52 193.71 0.1109 -1274.5 999999
154 0.00 2.04 0.00 1.02 -11.08 90.58 1.50 191.52 0.1289 -1371.0 -1038.1
155 0.76 3.99 0.39 2.02 -15.62 90.57 1.49 186.99 0.2064 -1002.1 -727.9
156 1.10 -146.00 0.55 -146.00 -10.04 90.48 1.40 192.61 0.1109 -1247.9 999999
157 3.31 -146.00 1.65 -146.00 -9.92 90.31 1.22 191.25 0.1082 -1113.8 999999
158 0.00 3.14 0.00 1.57 -11.47 90.28 1.20 188.79 0.1346 -1050.0 -962.1
159 0.00 0.85 0.00 0.42 -10.54 90.28 1.19 189.98 0.1188 -975.0 -740.1
160 0.00 1.10 0.00 0.55 -11.97 90.25 1.17 188.04 0.1432 -924.0 -717.9
161 0.00 3.14 0.00 1.57 -11.08 90.22 1.14 188.80 0.1278 -1020.0 -946.3
162 3.57 -107.00 1.79 -107.00 -13.43 90.13 1.05 186.13 0.1681 -1068.7 999999
163 0.00 0.93 0.00 0.47 -11.41 90.13 1.05 187.76 0.1332 -957.0 -801.9
164 3.23 5.86 1.62 2.94 -12.51 90.10 1.02 186.59 0.1521 -1032.7 -789.6
165 0.00 1.02 0.00 0.51 -7.38 90.09 1.01 195.88 0.0642 -1011.0 -855.9
166 0.00 1.02 0.00 0.51 -11.58 90.10 1.02 187.37 0.1362 -1229.0 -980.8
167 0.00 0.85 0.00 0.42 -9.66 90.01 0.92 188.94 0.1027 -829.0 -585.3
168 4.67 -107.00 2.35 -107.00 -13.31 89.98 0.90 185.32 0.1657 -1277.9 999999
169 0.00 2.80 0.00 1.40 -12.12 89.98 0.90 186.08 0.1452 -1061.0 -880.4
170 0.00 1.27 0.00 0.64 -11.02 89.95 0.87 186.78 0.1261 -755.0 -614.1
171 0.00 0.93 0.00 0.47 -10.07 89.95 0.86 187.81 0.1097 -693.0 -489.8
172 0.00 1.10 0.00 0.55 -11.47 89.95 0.87 186.39 0.1338 -605.0 -789.0
173 0.00 2.04 0.00 1.03 -15.83 89.93 0.85 183.92 0.2089 -1002.0 -710.0
174 7.05 -107.00 3.55 -107.00 -13.76 89.80 0.72 184.06 0.1732 -1211.3 999999
175 0.00 1.78 0.00 0.89 -7.00 89.68 0.59 190.64 0.0559 -1042.0 -900.1
176 0.00 2.89 0.00 1.44 -11.91 89.65 0.57 183.95 0.1411 -1118.0 -1057.5
177 0.00 1.78 0.00 0.89 -12.18 89.62 0.54 183.62 0.1457 -1165.0 -990.2
178 14.78 -107.00 7.43 -107.00 -13.64 89.47 0.39 182.20 0.1708 -1249.7 999999
179 0.00 3.99 0.00 2.00 -12.42 89.44 0.36 182.33 0.1496 -990.0 -816.9
180 0.76 4.93 0.38 2.47 -12.00 89.35 0.26 181.83 0.1424 -1206.3 -1019.7
181 0.00 17.16 0.00 8.58 -11.49 89.32 0.23 181.73 0.1336 -1125.0 -964.9
182 1.87 -107.00 0.94 -107.00 -13.76 89.20 0.11 180.64 0.1728 -1062.0 999999
183 0.00 2.21 0.00 1.11 -12.21 88.99 -0.10 179.35 0.1459 -1025.0 -953.5
184 0.00 0.93 0.00 0.47 -12.12 88.80 -0.28 178.11 0.1444 -901.0 -740.9
185 0.00 1.44 0.00 0.72 -11.79 88.69 -0.40 177.18 0.1388 -999.0 -816.1
186 0.00 2.55 0.00 1.27 -11.49 88.57 -0.52 176.19 0.1338 -832.0 -723.4
187 0.00 3.65 0.00 1.83 -12.45 88.53 -0.55 176.41 0.1503 -749.0 -639.7
188 0.00 3.82 0.00 1.92 -12.80 88.44 -0.64 175.98 0.1566 -740.0 -808.8
189 0.00 1.36 0.00 0.68 -11.79 88.35 -0.73 174.85 0.1392 -494.0 -521.1
190 0.00 1.10 0.00 0.55 -10.19 88.24 -0.84 172.52 0.1117 -811.0 -664.7
191 0.00 1.10 0.00 0.55 -12.32 87.78 -1.30 171.42 0.1496 -779.0 -643.5
192 0.00 2.89 0.00 1.44 -11.70 87.69 -1.39 170.12 0.1391 -666.0 -709.2
193 0.00 1.36 0.00 0.68 -12.05 87.06 -2.03 166.38 0.1474 -820.0 -621.1
194 0.00 1.44 0.00 0.72 -12.98 86.99 -2.09 167.34 0.1633 -820.0 -672.9


  • 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.
  • 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.