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

8844 132 688 79 407 5.15 71.68 30.99 288.59 0.5429 -334.1 47.1


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SOHO MDI 2000-01-25 20:47:32 UT

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

1 23 278 14 168 4.13 74.56 33.87 285.17 0.5782 1529.2 683.3
2 -1 -1 -1 -1 3.86 74.54 33.86 284.72 0.5769 999999 999999
3 17 -1 11 -1 4.55 74.44 33.75 285.93 0.5782 1197.0 999999
4 5 -1 3 -1 4.75 73.85 33.16 286.56 0.5709 1034.4 999999
5 5 -1 3 -1 4.57 73.43 32.74 286.47 0.5644 1451.3 999999
6 0 6 0 4 4.73 72.71 32.02 287.12 0.5551 832.0 653.3
7 0 8 0 5 4.48 72.47 31.78 286.82 0.5507 997.0 748.5
8 0 21 0 13 5.34 72.38 31.69 288.34 0.5532 462.0 416.7
9 0 6 0 4 3.85 72.17 31.48 285.86 0.5438 953.0 738.1
10 0 8 0 5 4.02 71.72 31.04 286.40 0.5383 1023.0 830.3
11 0 14 0 8 4.76 71.71 31.03 287.71 0.5414 873.0 819.3
12 0 7 0 4 5.22 70.80 30.11 289.07 0.5308 611.0 574.4
13 6 335 4 193 6.03 70.67 29.98 290.60 0.5330 -714.0 -627.6
14 0 5 0 3 6.58 69.99 29.30 292.04 0.5267 -840.0 -737.6
15 11 -13 7 -13 5.72 69.89 29.21 290.56 0.5207 -746.9 999999
16 4 -13 2 -13 4.93 69.59 28.90 289.31 0.5123 -909.8 999999
17 28 -13 16 -13 5.38 69.30 28.62 290.34 0.5106 -1814.3 999999
18 11 -13 6 -13 6.59 69.20 28.51 292.61 0.5157 -1257.0 999999
19 -17 -13 -17 -13 5.72 69.15 28.46 291.08 0.5102 999999 999999
20 22 -13 13 -13 6.37 68.70 28.01 292.58 0.5076 -1805.1 999999


  • 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.