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

9330 37 342 21 199 24.30 114.88 -9.37 15.99 0.5307 1362.1 363.8


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SOHO MDI 2001-02-04 09:35:32 UT

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

1 34 208 19 119 23.37 117.20 -7.04 12.86 0.5078 1673.0 568.3
2 3 12 2 7 24.68 115.47 -8.78 15.14 0.5331 803.7 702.9
3 0 11 0 6 23.40 115.13 -9.11 16.42 0.5161 1148.0 859.0
4 0 7 0 4 23.33 114.42 -9.83 17.68 0.5182 998.0 737.7
5 0 5 0 3 25.04 113.42 -10.82 18.21 0.5466 526.0 395.5
6 0 3 0 2 22.64 113.41 -10.83 19.83 0.5134 811.0 695.1
7 0 4 0 2 23.24 112.51 -11.73 20.88 0.5263 596.0 467.9
8 0 5 0 3 19.38 112.78 -11.46 23.56 0.4711 853.0 695.6
9 0 8 0 5 25.34 112.18 -12.06 19.92 0.5566 457.0 403.2
10 0 18 0 11 25.04 111.60 -12.64 21.00 0.5555 841.0 438.3
11 0 6 0 3 24.37 111.46 -12.79 21.70 0.5473 653.0 612.2
12 0 5 0 3 27.53 110.12 -14.12 21.38 0.5959 -650.0 -527.3
13 0 10 0 6 27.78 109.60 -14.65 21.91 0.6017 -787.0 -827.0
14 0 10 0 6 28.07 109.24 -15.00 22.18 0.6072 -804.0 -575.9
15 0 3 0 2 29.44 108.81 -15.44 21.80 0.6266 -449.0 -449.6
16 0 6 0 4 27.76 108.84 -15.41 22.94 0.6055 -733.0 -651.5
17 0 5 0 3 28.83 108.67 -15.57 22.38 0.6197 -660.0 -585.4
18 0 8 0 5 27.12 108.66 -15.59 23.65 0.5984 -860.0 -846.2
19 0 5 0 3 28.57 108.08 -16.17 23.33 0.6197 -696.0 -669.1
20 0 3 0 2 26.04 106.80 -17.44 26.96 0.5962 -677.0 -517.4


  • 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.