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

9330 31 344 18 197 24.10 114.62 -3.48 5.96 0.5118 1257.1 401.0


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SOHO MDI 2001-02-04 20:47:32 UT

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

1 22 197 13 112 23.38 117.14 -0.96 1.77 0.4967 1449.3 604.0
2 7 -1 4 -1 23.07 116.93 -1.16 2.18 0.4921 1835.7 999999
3 0 4 0 2 24.72 115.35 -2.74 4.82 0.5185 699.0 560.4
4 0 7 0 4 23.39 114.75 -3.34 6.17 0.4994 793.0 765.1
5 0 5 0 3 21.64 114.71 -3.38 6.68 0.4728 722.0 568.4
6 0 3 0 2 23.22 114.38 -3.71 6.90 0.4974 784.0 670.3
7 0 6 0 3 22.35 113.41 -4.69 8.98 0.4863 519.0 502.2
8 0 6 0 3 24.24 113.34 -4.75 8.48 0.5149 645.0 516.5
9 0 8 0 5 23.59 112.69 -5.40 9.85 0.5066 801.0 697.9
10 0 6 0 3 23.19 112.54 -5.55 10.27 0.5011 641.0 614.1
11 0 4 0 2 18.82 112.70 -5.39 11.86 0.4345 591.0 441.3
12 0 5 0 3 25.25 112.02 -6.07 10.39 0.5328 656.0 538.5
13 2 20 1 12 25.12 111.48 -6.62 11.35 0.5324 553.2 419.1
14 0 19 0 11 24.72 111.37 -6.72 11.70 0.5269 1048.0 683.5
15 0 5 0 3 23.78 111.17 -6.93 12.45 0.5139 458.0 279.5
16 0 11 0 6 25.72 110.58 -7.51 12.56 0.5438 -692.0 -675.4
17 0 7 0 4 27.75 109.53 -8.57 13.29 0.5758 -718.0 -648.8
18 0 3 0 2 29.06 109.20 -8.90 13.19 0.5949 -644.0 -544.3
19 0 3 0 2 27.76 108.87 -9.23 14.26 0.5782 -655.0 -570.6
20 0 2 0 1 29.60 108.57 -9.53 13.84 0.6041 -508.0 -454.3
21 0 7 0 4 28.89 108.32 -9.77 14.51 0.5955 -747.0 -667.2
22 0 16 0 10 27.26 108.38 -9.71 15.23 0.5731 -1057.0 -815.0


  • 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.