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

8889 145 951 82 541 19.88 291.25 10.21 339.67 0.4836


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SOHO MDI 2000-03-02 06:23:32 UT

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spotProj. UProj. WSCorr. UCorr. WSBLLCMPos. angler

1 0 2 0 1 17.26 299.39 18.35 323.63 0.5090
2 37 224 21 130 18.62 299.49 18.45 325.08 0.5262
3 0 5 0 3 19.08 298.05 17.01 327.73 0.5198
4 0 7 0 4 17.49 297.67 16.63 326.52 0.4970
5 0 4 0 2 19.26 297.17 16.13 329.27 0.5153
6 0 1 0 1 17.81 295.98 14.94 329.64 0.4875
7 8 99 5 56 18.38 295.36 14.32 331.28 0.4904
8 4 -7 2 -7 18.67 294.92 13.88 332.31 0.4911
9 0 1 0 1 20.03 294.24 13.20 334.74 0.5047
10 0 8 0 5 19.03 294.07 13.03 334.11 0.4901
11 0 10 0 6 19.11 292.28 11.24 337.34 0.4800
12 25 134 14 77 20.56 291.76 10.72 339.43 0.4976
13 46 398 26 224 20.60 286.80 5.76 348.60 0.4774
14 11 -13 6 -13 20.94 286.32 5.28 349.67 0.4811
15 14 -13 8 -13 21.02 284.99 3.95 352.24 0.4791
16 0 3 0 2 21.27 284.21 3.17 353.82 0.4816
17 0 10 0 5 15.07 283.42 2.38 353.96 0.3829
18 0 6 0 3 17.38 282.80 1.76 355.96 0.4190
19 0 2 0 1 25.57 280.08 -0.95 1.59 0.5438
20 0 13 0 7 20.04 280.04 -1.00 2.05 0.4601
21 0 3 0 2 20.78 279.91 -1.13 2.24 0.4717
22 0 4 0 2 20.39 279.46 -1.58 3.19 0.4660
23 0 7 0 4 26.36 279.00 -2.04 3.30 0.5560
24 0 6 0 3 26.27 278.23 -2.81 4.56 0.5555
25 0 4 0 2 19.60 275.53 -5.51 11.35 0.4614


  • 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