SDO HMI 2014-05-12 10:00:37 UT
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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 159.12 | 700.12 | 93.41 | 408.03 | -14.66 | 227.22 | -29.68 | 113.60 | 0.5234 | 119.5 | 48.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-12 10:00:37 UT
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 | 1.61 | 0.00 | 0.81 | -10.03 | 248.99 | -7.91 | 132.35 | 0.1841 | 957.0 | 802.6 | |
| 0.00 | 2.06 | 0.00 | 1.04 | -10.27 | 248.74 | -8.16 | 132.43 | 0.1901 | 852.0 | 625.9 | |
| 0.00 | 1.17 | 0.00 | 0.59 | -4.43 | 247.84 | -9.06 | 99.48 | 0.1599 | 780.0 | 574.8 | |
| 0.00 | 1.70 | 0.00 | 0.86 | -8.69 | 245.86 | -11.04 | 118.00 | 0.2154 | 979.0 | 794.8 | |
| 0.00 | 1.79 | 0.00 | 0.92 | -10.63 | 242.60 | -14.30 | 119.07 | 0.2790 | 955.0 | 716.7 | |
| 0.00 | 1.08 | 0.00 | 0.56 | -7.84 | 241.42 | -15.48 | 108.19 | 0.2795 | 913.0 | 632.2 | |
| 0.00 | 1.35 | 0.00 | 0.69 | -8.24 | 241.25 | -15.65 | 109.34 | 0.2842 | 963.0 | 864.0 | |
| 0.00 | 1.61 | 0.00 | 0.84 | -11.89 | 240.54 | -16.36 | 119.69 | 0.3186 | 849.0 | 649.2 | |
| 0.00 | 0.90 | 0.00 | 0.46 | -8.32 | 240.73 | -16.17 | 109.08 | 0.2928 | 736.0 | 542.6 | |
| 0.00 | 1.26 | 0.00 | 0.66 | -11.86 | 240.35 | -16.55 | 119.33 | 0.3211 | 735.0 | 500.9 | |
| 0.00 | 0.99 | 0.00 | 0.51 | -10.07 | 239.94 | -16.96 | 113.68 | 0.3149 | 746.0 | 567.4 | |
| 0.00 | 1.88 | 0.00 | 0.99 | -7.34 | 238.37 | -18.53 | 104.05 | 0.3263 | 803.0 | 639.7 | |
| 0.00 | 2.06 | 0.00 | 1.09 | -11.97 | 237.97 | -18.93 | 116.64 | 0.3566 | 660.0 | 518.2 | |
| 0.00 | 1.61 | 0.00 | 0.85 | -7.75 | 237.81 | -19.09 | 104.90 | 0.3369 | 774.0 | 598.6 | |
| 0.00 | 1.17 | 0.00 | 0.61 | -7.47 | 237.46 | -19.44 | 103.87 | 0.3413 | 662.0 | 518.6 | |
| 0.00 | 1.61 | 0.00 | 0.85 | -6.02 | 237.49 | -19.41 | 99.64 | 0.3366 | 767.0 | 570.6 | |
| 0.00 | 1.52 | 0.00 | 0.80 | -5.95 | 236.91 | -19.99 | 99.20 | 0.3459 | 789.0 | 591.2 | |
| 0.00 | 1.79 | 0.00 | 0.96 | -11.51 | 236.13 | -20.77 | 113.60 | 0.3808 | 892.0 | 722.5 | |
| 0.00 | 1.61 | 0.00 | 0.87 | -12.76 | 235.89 | -21.01 | 116.39 | 0.3919 | 923.0 | 772.5 | |
| 0.54 | 1.17 | 0.29 | 0.63 | -11.38 | 235.91 | -20.99 | 113.08 | 0.3834 | 899.2 | 802.3 | |
| 0.00 | 1.17 | 0.00 | 0.62 | -7.72 | 235.89 | -21.01 | 103.64 | 0.3672 | 811.0 | 669.0 | |
| 0.00 | 0.45 | 0.00 | 0.25 | -18.27 | 234.77 | -22.13 | 126.79 | 0.4485 | 692.0 | 631.0 | |
| 0.00 | 1.08 | 0.00 | 0.58 | -9.96 | 235.48 | -21.41 | 109.22 | 0.3824 | 798.0 | 564.2 | |
| 0.00 | 3.14 | 0.00 | 1.69 | -9.84 | 235.16 | -21.74 | 108.66 | 0.3868 | 859.0 | 742.4 | |
| 0.00 | 0.99 | 0.00 | 0.53 | -9.56 | 235.18 | -21.72 | 107.99 | 0.3853 | 866.0 | 697.5 | |
| 0.00 | 1.43 | 0.00 | 0.77 | -9.56 | 234.98 | -21.92 | 107.84 | 0.3883 | 844.0 | 751.9 | |
| 0.00 | 1.08 | 0.00 | 0.57 | -4.82 | 235.03 | -21.87 | 95.54 | 0.3745 | 915.0 | 756.6 | |
| 7.00 | 9.78 | 3.79 | 5.29 | -11.44 | 234.54 | -22.36 | 112.08 | 0.4041 | 1056.8 | 763.6 | |
| 0.63 | 1.70 | 0.34 | 0.92 | -10.56 | 234.54 | -22.35 | 109.97 | 0.3995 | 920.1 | 770.3 | |
| 0.00 | 1.08 | 0.00 | 0.61 | -20.01 | 233.22 | -23.68 | 128.22 | 0.4822 | 535.0 | 468.4 | |
| 0.00 | 1.35 | 0.00 | 0.73 | -11.28 | 234.12 | -22.78 | 111.37 | 0.4095 | 691.0 | 530.4 | |
| 1.79 | 3.68 | 0.97 | 2.00 | -11.62 | 234.05 | -22.84 | 112.10 | 0.4121 | 780.7 | 588.2 | |
| 0.00 | 0.90 | 0.00 | 0.50 | -16.18 | 233.43 | -23.47 | 121.31 | 0.4496 | 819.0 | 633.8 | |
| 0.00 | 1.17 | 0.00 | 0.63 | -5.38 | 234.29 | -22.61 | 96.86 | 0.3872 | 721.0 | 588.0 | |
| 0.00 | 1.97 | 0.00 | 1.09 | -15.80 | 233.34 | -23.56 | 120.47 | 0.4481 | 62.0 | 64.4 | |
| 0.00 | 2.15 | 0.00 | 1.17 | -9.75 | 233.87 | -23.03 | 107.58 | 0.4061 | 759.0 | 603.1 | |
| 0.00 | 2.42 | 0.00 | 1.33 | -13.97 | 233.31 | -23.59 | 116.68 | 0.4363 | 1031.0 | 781.0 | |
| 0.00 | 0.81 | 0.00 | 0.44 | -10.05 | 233.61 | -23.28 | 108.13 | 0.4113 | 585.0 | 443.1 | |
| 0.00 | 0.99 | 0.00 | 0.54 | -10.20 | 233.40 | -23.50 | 108.34 | 0.4151 | 563.0 | 470.5 | |
| 0.00 | 1.17 | 0.00 | 0.64 | -10.35 | 233.25 | -23.64 | 108.59 | 0.4180 | 596.0 | 390.4 | |
| 0.00 | 0.99 | 0.00 | 0.54 | -11.23 | 233.15 | -23.75 | 110.54 | 0.4237 | 776.0 | 565.4 | |
| 0.00 | 2.15 | 0.00 | 1.19 | -13.28 | 232.81 | -24.09 | 114.79 | 0.4394 | 804.0 | 719.2 | |
| 0.00 | 1.26 | 0.00 | 0.69 | -12.70 | 232.80 | -24.10 | 113.53 | 0.4362 | 920.0 | 797.1 | |
| 0.00 | 1.35 | 0.00 | 0.74 | -13.07 | 232.70 | -24.20 | 114.23 | 0.4398 | 517.0 | 442.1 | |
| 0.00 | 1.17 | 0.00 | 0.63 | -5.20 | 233.24 | -23.66 | 96.19 | 0.4037 | 780.0 | 650.5 | |
| 0.00 | 1.35 | 0.00 | 0.74 | -13.28 | 232.50 | -24.40 | 114.53 | 0.4437 | 568.0 | 475.2 | |
| 0.00 | 1.43 | 0.00 | 0.78 | -4.84 | 233.05 | -23.85 | 95.25 | 0.4063 | 812.0 | 674.6 | |
| 0.00 | 1.35 | 0.00 | 0.75 | -14.94 | 232.14 | -24.76 | 117.65 | 0.4587 | 650.0 | 568.1 | |
| 0.00 | 0.63 | 0.00 | 0.35 | -15.12 | 231.97 | -24.92 | 117.87 | 0.4621 | 600.0 | 472.3 | |
| 0.00 | 1.08 | 0.00 | 0.60 | -11.02 | 230.37 | -26.53 | 108.34 | 0.4638 | -703.0 | -559.8 | |
| 0.00 | 2.06 | 0.00 | 1.15 | -11.26 | 230.27 | -26.62 | 108.79 | 0.4662 | -1040.0 | -868.3 | |
| 40.63 | 216.68 | 23.16 | 123.61 | -14.47 | 229.19 | -27.71 | 114.49 | 0.4967 | 1113.4 | 346.0 | |
| 0.00 | 1.17 | 0.00 | 0.66 | -12.95 | 229.18 | -27.72 | 111.57 | 0.4894 | 298.0 | 307.0 | |
| 0.00 | 1.43 | 0.00 | 0.81 | -12.18 | 229.20 | -27.70 | 110.06 | 0.4857 | -734.0 | -619.1 | |
| 3.23 | -52.00 | 1.85 | -52.00 | -14.26 | 228.51 | -28.39 | 113.66 | 0.5051 | 853.0 | 999999 | |
| 0.00 | 4.39 | 0.00 | 2.49 | -11.41 | 228.76 | -28.14 | 108.28 | 0.4888 | -647.0 | -530.6 | |
| 0.00 | 0.72 | 0.00 | 0.41 | -14.94 | 228.31 | -28.59 | 114.79 | 0.5113 | 526.0 | 355.0 | |
| 0.00 | 1.17 | 0.00 | 0.66 | -11.25 | 228.60 | -28.30 | 107.89 | 0.4905 | -815.0 | -609.0 | |
| 2.51 | -52.00 | 1.44 | -52.00 | -14.22 | 228.20 | -28.70 | 113.39 | 0.5092 | 649.1 | 999999 | |
| 1.52 | 3.14 | 0.88 | 1.81 | -14.72 | 228.05 | -28.84 | 114.21 | 0.5137 | 665.3 | 501.1 | |
| 0.00 | 1.35 | 0.00 | 0.77 | -11.36 | 228.31 | -28.59 | 107.97 | 0.4952 | -719.0 | -644.5 | |
| 0.45 | -52.00 | 0.26 | -52.00 | -14.12 | 227.89 | -29.01 | 113.02 | 0.5130 | 495.2 | 999999 | |
| 0.00 | 1.35 | 0.00 | 0.77 | -11.33 | 228.10 | -28.80 | 107.80 | 0.4981 | -757.0 | -628.1 | |
| 0.45 | 14.80 | 0.26 | 8.58 | -14.52 | 227.65 | -29.25 | 113.60 | 0.5182 | 684.6 | -92.8 | |
| 0.00 | 1.08 | 0.00 | 0.62 | -14.21 | 227.52 | -29.38 | 112.95 | 0.5185 | 230.0 | 188.5 | |
| 0.00 | 1.17 | 0.00 | 0.69 | -18.40 | 226.73 | -30.16 | 119.77 | 0.5514 | 637.0 | 558.0 | |
| 1.08 | 39.55 | 0.63 | 23.09 | -14.91 | 227.27 | -29.63 | 114.08 | 0.5253 | 825.2 | 109.3 | |
| 0.00 | 0.72 | 0.00 | 0.43 | -18.90 | 226.52 | -30.38 | 120.45 | 0.5571 | 616.0 | 467.0 | |
| 0.00 | 0.72 | 0.00 | 0.43 | -18.30 | 226.57 | -30.33 | 119.49 | 0.5529 | 597.0 | 529.1 | |
| 8.52 | -67.00 | 4.97 | -67.00 | -15.22 | 227.00 | -29.89 | 114.47 | 0.5304 | 677.4 | 999999 | |
| 4.39 | -67.00 | 2.56 | -67.00 | -14.97 | 227.04 | -29.86 | 114.05 | 0.5287 | 516.5 | 999999 | |
| 0.00 | 1.35 | 0.00 | 0.79 | -16.86 | 226.69 | -30.21 | 117.14 | 0.5432 | -707.0 | -521.5 | |
| 0.36 | 5.38 | 0.21 | 3.19 | -17.58 | 226.52 | -30.38 | 118.25 | 0.5494 | 888.8 | 703.5 | |
| 0.00 | 0.27 | 0.00 | 0.16 | -17.98 | 226.41 | -30.49 | 118.85 | 0.5531 | 511.0 | 515.7 | |
| 0.00 | 1.61 | 0.00 | 0.93 | -12.96 | 227.08 | -29.82 | 110.40 | 0.5190 | -914.0 | -746.9 | |
| 0.00 | 1.61 | 0.00 | 0.93 | -11.64 | 227.18 | -29.72 | 107.97 | 0.5125 | -720.0 | -613.0 | |
| 1.35 | 5.47 | 0.78 | 3.17 | -12.61 | 226.73 | -30.17 | 109.58 | 0.5225 | -1073.0 | -815.0 | |
| 0.00 | 2.42 | 0.00 | 1.41 | -14.18 | 226.51 | -30.39 | 112.32 | 0.5322 | -742.0 | -517.1 | |
| 0.00 | 1.35 | 0.00 | 0.79 | -16.04 | 226.21 | -30.69 | 115.42 | 0.5452 | 322.0 | 287.0 | |
| 0.00 | 1.08 | 0.00 | 0.64 | -17.31 | 225.91 | -30.99 | 117.40 | 0.5558 | 681.0 | 536.8 | |
| 0.00 | 1.26 | 0.00 | 0.73 | -12.86 | 226.63 | -30.27 | 109.97 | 0.5250 | -616.0 | -512.8 | |
| 0.00 | 1.08 | 0.00 | 0.64 | -16.19 | 226.08 | -30.82 | 115.60 | 0.5477 | 664.0 | 444.6 | |
| 1.08 | 2.51 | 0.64 | 1.50 | -17.62 | 225.74 | -31.16 | 117.80 | 0.5597 | 733.8 | 624.4 | |
| 0.00 | 3.95 | 0.00 | 2.31 | -14.39 | 226.23 | -30.67 | 112.54 | 0.5371 | -821.0 | -751.7 | |
| 0.00 | 2.24 | 0.00 | 1.31 | -12.94 | 226.40 | -30.50 | 110.02 | 0.5285 | -754.0 | -596.2 | |
| 0.00 | 1.26 | 0.00 | 0.72 | -7.85 | 226.92 | -29.98 | 100.52 | 0.5055 | -671.0 | -480.5 | |
| 0.00 | 7.71 | 0.00 | 4.59 | -16.71 | 225.69 | -31.21 | 116.25 | 0.5555 | 769.0 | 634.6 | |
| 0.00 | 0.99 | 0.00 | 0.57 | -12.20 | 226.28 | -30.62 | 108.60 | 0.5273 | -580.0 | -493.6 | |
| 0.00 | 0.81 | 0.00 | 0.47 | -14.57 | 225.94 | -30.96 | 112.70 | 0.5417 | -824.0 | -639.8 | |
| 0.81 | 50.13 | 0.47 | 29.42 | -13.03 | 226.10 | -30.80 | 110.02 | 0.5330 | -936.7 | -583.3 | |
| 1.97 | 4.30 | 1.17 | 2.56 | -15.71 | 225.53 | -31.37 | 114.45 | 0.5525 | -784.3 | -706.0 | |
| 0.00 | 3.23 | 0.00 | 1.91 | -15.00 | 225.65 | -31.25 | 113.29 | 0.5476 | 253.0 | 52.1 | |
| 0.00 | 0.81 | 0.00 | 0.49 | -17.72 | 224.97 | -31.93 | 117.49 | 0.5701 | -748.0 | -634.8 | |
| 2.42 | -90.00 | 1.43 | -90.00 | -13.69 | 225.64 | -31.26 | 110.99 | 0.5421 | -963.7 | 999999 | |
| 1.17 | 4.22 | 0.69 | 2.50 | -15.39 | 225.37 | -31.53 | 113.81 | 0.5533 | -1029.8 | -756.9 | |
| 10.40 | -90.00 | 6.11 | -90.00 | -13.29 | 225.66 | -31.24 | 110.28 | 0.5402 | -971.8 | 999999 | |
| 0.00 | 1.79 | 0.00 | 1.09 | -18.44 | 224.71 | -32.19 | 118.49 | 0.5772 | -722.0 | -556.7 | |
| 0.00 | 5.56 | 0.00 | 3.29 | -14.49 | 225.44 | -31.46 | 112.29 | 0.5482 | -567.0 | -764.2 | |
| 0.36 | 1.88 | 0.21 | 1.10 | -12.49 | 225.70 | -31.20 | 108.86 | 0.5365 | -786.5 | -716.5 | |
| 0.00 | 0.99 | 0.00 | 0.59 | -15.02 | 225.28 | -31.62 | 113.12 | 0.5527 | -308.0 | -272.7 | |
| 0.00 | 1.08 | 0.00 | 0.63 | -12.64 | 225.57 | -31.33 | 109.08 | 0.5389 | -713.0 | -634.4 | |
| 0.00 | 1.17 | 0.00 | 0.68 | -12.15 | 225.60 | -31.30 | 108.20 | 0.5367 | -513.0 | -442.0 | |
| 7.98 | 23.50 | 4.77 | 14.03 | -15.82 | 224.96 | -31.94 | 114.31 | 0.5607 | -874.1 | -576.0 | |
| 0.00 | 2.15 | 0.00 | 1.29 | -16.22 | 224.81 | -32.09 | 114.90 | 0.5645 | -692.0 | -651.7 | |
| 5.56 | -103.00 | 3.32 | -103.00 | -15.60 | 224.89 | -32.01 | 113.89 | 0.5606 | -980.2 | 999999 | |
| 0.00 | 2.78 | 0.00 | 1.68 | -17.27 | 224.42 | -32.48 | 116.42 | 0.5747 | -862.0 | -702.2 | |
| 0.00 | 1.35 | 0.00 | 0.81 | -16.21 | 224.55 | -32.35 | 114.74 | 0.5679 | -615.0 | -532.1 | |
| 0.00 | 0.81 | 0.00 | 0.49 | -16.05 | 224.47 | -32.43 | 114.43 | 0.5682 | -478.0 | -453.3 | |
| 8.52 | 43.05 | 5.08 | 25.65 | -14.50 | 224.66 | -32.23 | 111.91 | 0.5587 | -939.6 | -663.5 | |
| 4.13 | -109.00 | 2.47 | -109.00 | -14.71 | 224.44 | -32.45 | 112.16 | 0.5626 | -894.7 | 999999 | |
| 0.00 | 1.70 | 0.00 | 1.02 | -14.93 | 224.33 | -32.57 | 112.47 | 0.5650 | -668.0 | -563.7 | |
| 0.00 | 0.54 | 0.00 | 0.32 | -12.62 | 224.66 | -32.24 | 108.62 | 0.5514 | -593.0 | -477.5 | |
| 0.00 | 1.88 | 0.00 | 1.13 | -15.14 | 224.22 | -32.68 | 112.77 | 0.5674 | -617.0 | -483.1 | |
| 0.00 | 1.26 | 0.00 | 0.78 | -19.25 | 223.27 | -33.63 | 118.90 | 0.5995 | -904.0 | -768.2 | |
| 0.00 | 0.72 | 0.00 | 0.43 | -15.54 | 223.96 | -32.94 | 113.31 | 0.5725 | -525.0 | -451.4 | |
| 0.00 | 2.15 | 0.00 | 1.34 | -20.16 | 222.77 | -34.13 | 119.99 | 0.6103 | -795.0 | -567.2 | |
| 5.20 | 7.35 | 3.23 | 4.57 | -19.50 | 222.90 | -34.00 | 119.05 | 0.6052 | -909.9 | -629.7 | |
| 6.46 | 24.93 | 3.90 | 15.09 | -14.84 | 223.60 | -33.30 | 111.96 | 0.5744 | -1016.4 | -575.7 | |
| 0.00 | 2.42 | 0.00 | 1.51 | -19.55 | 222.61 | -34.29 | 118.97 | 0.6090 | -308.0 | -390.4 | |
| 0.00 | 1.70 | 0.00 | 1.03 | -15.28 | 223.48 | -33.41 | 112.63 | 0.5777 | -524.0 | -406.5 | |
| 10.76 | -118.00 | 6.52 | -118.00 | -14.81 | 223.34 | -33.56 | 111.78 | 0.5776 | -867.7 | 999999 | |
| 17.85 | 75.25 | 11.01 | 46.38 | -17.28 | 222.59 | -34.31 | 115.42 | 0.5981 | 1015.2 | 348.9 | |
| 0.00 | 0.72 | 0.00 | 0.45 | -19.56 | 221.87 | -35.03 | 118.56 | 0.6181 | -712.0 | -606.9 | |
| 0.00 | 1.17 | 0.00 | 0.74 | -19.72 | 221.67 | -35.23 | 118.68 | 0.6212 | -669.0 | -511.4 | |
| 0.00 | 0.99 | 0.00 | 0.61 | -15.30 | 222.00 | -34.90 | 111.96 | 0.5973 | -661.0 | -489.9 | |
| 0.00 | 1.17 | 0.00 | 0.73 | -15.66 | 220.69 | -36.21 | 111.96 | 0.6156 | -674.0 | -591.5 | |
| 0.00 | 1.17 | 0.00 | 0.73 | -14.57 | 220.71 | -36.19 | 110.25 | 0.6114 | -755.0 | -589.1 | |
| 0.00 | 1.08 | 0.00 | 0.72 | -22.08 | 218.55 | -38.35 | 120.44 | 0.6691 | -692.0 | -602.3 | |
| 0.00 | 0.54 | 0.00 | 0.36 | -22.24 | 217.32 | -39.58 | 120.04 | 0.6836 | -533.0 | -442.5 | |
| 0.00 | 0.81 | 0.00 | 0.53 | -18.03 | 217.35 | -39.55 | 114.12 | 0.6657 | -477.0 | -432.0 | |
| 0.00 | 1.26 | 0.00 | 0.86 | -19.81 | 215.60 | -41.30 | 115.92 | 0.6927 | -633.0 | -538.4 | |
| 0.00 | 1.52 | 0.00 | 1.05 | -20.25 | 215.41 | -41.49 | 116.45 | 0.6965 | -725.0 | -588.4 | |
| 0.00 | 1.17 | 0.00 | 0.80 | -20.11 | 215.15 | -41.75 | 116.16 | 0.6989 | -570.0 | -482.8 | |
| 0.00 | 3.05 | 0.00 | 2.11 | -20.33 | 215.08 | -41.82 | 116.43 | 0.7005 | -490.0 | -394.2 | |
| 0.00 | 0.90 | 0.00 | 0.61 | -19.04 | 215.37 | -41.53 | 114.76 | 0.6926 | -122.0 | -198.8 | |
| 0.00 | 0.81 | 0.00 | 0.59 | -23.75 | 213.07 | -43.83 | 120.14 | 0.7353 | -497.0 | -411.7 | |
| 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. | |