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

12044 26.44 62.37 15.07 35.79 -19.94 140.92 -26.90 122.09 0.5023 236.3 46.5


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SDO HMI 2014-04-21 22:00:35 UT

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

1 9.41 12.78 5.13 6.97 -17.63 146.09 -21.73 122.35 0.4195 1018.4 637.9
2 1.77 4.08 0.97 2.22 -17.32 146.06 -21.76 121.66 0.4176 963.9 754.0
3 0.00 1.15 0.00 0.63 -19.23 145.67 -22.16 125.17 0.4374 892.0 663.7
4 0.00 1.33 0.00 0.74 -19.22 144.46 -23.37 123.87 0.4530 730.0 583.1
5 0.00 0.80 0.00 0.44 -19.55 144.16 -23.66 124.22 0.4593 671.0 471.3
6 0.00 1.42 0.00 0.78 -17.10 144.18 -23.65 119.35 0.4417 757.0 652.7
7 0.00 1.33 0.00 0.76 -19.01 141.36 -26.47 120.66 0.4918 733.0 485.1
8 4.08 6.48 2.34 3.71 -20.12 140.91 -26.92 122.30 0.5049 934.8 606.1
9 0.00 1.24 0.00 0.72 -20.74 140.72 -27.11 123.24 0.5115 710.0 608.5
10 0.00 1.15 0.00 0.67 -20.98 140.56 -27.27 123.53 0.5152 727.0 596.0
11 1.24 2.93 0.72 1.70 -19.40 139.38 -28.45 119.84 0.5200 945.5 788.6
12 0.00 1.06 0.00 0.62 -19.63 139.01 -28.82 119.98 0.5262 699.0 495.8
13 0.00 1.15 0.00 0.68 -20.69 138.01 -29.81 121.07 0.5452 -728.0 -581.8
14 4.26 21.83 2.53 12.98 -21.66 137.76 -30.07 122.49 0.5542 -1119.9 -597.9
15 2.75 -14.00 1.64 -14.00 -21.87 137.63 -30.19 122.76 0.5571 -916.5 999999
16 2.93 -14.00 1.74 -14.00 -21.62 137.58 -30.25 122.30 0.5562 -835.5 999999
17 0.00 1.15 0.00 0.68 -20.51 137.42 -30.41 120.36 0.5515 -803.0 -729.7
18 0.00 0.89 0.00 0.53 -20.52 137.04 -30.78 120.13 0.5563 -640.0 -503.7
19 0.00 1.60 0.00 0.96 -20.89 136.24 -31.59 120.22 0.5685 -590.0 -467.8


  • 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.