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

8858 56 304 35 185 26.56 199.30 -10.30 16.30 0.5702


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SOHO MDI 2000-02-09 08:51:32 UT

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spotProj. UProj. WSCorr. UCorr. WSBLLCMPos. angler

1 0 5 0 3 25.21 206.22 -3.38 5.80 0.5300
2 0 5 0 3 21.67 206.22 -3.37 6.61 0.4767
3 10 22 6 12 24.19 205.40 -4.20 7.46 0.5162
4 3 9 2 5 28.04 203.47 -6.13 9.45 0.5762
5 0 6 0 4 28.66 202.64 -6.96 10.48 0.5869
6 0 7 0 4 23.91 202.62 -6.97 12.39 0.5192
7 0 3 0 2 26.17 202.28 -7.32 11.98 0.5528
8 0 4 0 2 23.69 202.26 -7.34 13.13 0.5173
9 0 6 0 4 30.26 200.68 -8.91 12.63 0.6142
10 0 5 0 3 28.08 200.87 -8.72 13.29 0.5840
11 9 34 6 21 27.34 200.76 -8.84 13.80 0.5742
12 0 4 0 3 29.46 200.36 -9.24 13.43 0.6044
13 6 14 4 9 30.57 199.80 -9.80 13.70 0.6210
14 0 5 0 3 29.95 199.50 -10.10 14.38 0.6138
15 2 8 2 5 30.40 198.77 -10.82 15.14 0.6223
16 0 14 0 9 28.92 198.93 -10.66 15.66 0.6022
17 0 10 0 6 29.38 197.81 -11.79 16.96 0.6125
18 0 7 0 4 28.01 197.70 -11.90 17.88 0.5951
19 0 7 0 5 29.05 197.53 -12.06 17.52 0.6094
20 24 79 14 46 24.32 197.82 -11.78 20.05 0.5449
21 2 14 1 9 27.70 197.15 -12.44 18.83 0.5934
22 0 8 0 5 25.11 196.48 -13.12 21.52 0.5625
23 0 3 0 2 25.49 196.04 -13.55 21.88 0.5697
24 0 15 0 9 24.96 195.76 -13.84 22.70 0.5643
25 0 4 0 3 24.75 195.21 -14.38 23.65 0.5646
26 0 6 0 4 27.62 188.97 -20.63 29.39 0.6384


  • 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