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

8076 93 561 64 402 27.76 109.89 43.77 302.31 0.7238 267.0 165.3


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SOHO MDI 1997-09-02 23:00:03 UT

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

1 31 263 24 202 26.37 114.99 48.86 298.48 0.7699 806.4 356.0
2 9 -1 7 -1 26.56 113.84 47.71 299.05 0.7592 874.0 999999
3 2 -1 1 -1 26.50 113.09 46.96 299.19 0.7515 886.3 999999
4 0 4 0 3 26.21 111.05 44.92 299.46 0.7299 460.0 391.1
5 8 24 6 17 27.62 110.45 44.33 301.52 0.7286 514.6 454.2
6 0 6 0 4 26.74 108.27 42.14 301.18 0.7027 519.0 463.7
7 14 60 10 42 28.06 108.77 42.64 302.75 0.7131 391.4 105.5
8 1 -7 0 -7 28.74 108.81 42.68 303.63 0.7163 -223.0 999999
9 0 8 0 5 29.64 107.75 41.62 305.28 0.7095 -203.0 -157.4
10 0 25 0 17 29.72 106.23 40.10 306.08 0.6946 593.0 662.9
11 0 6 0 4 28.93 105.80 39.67 305.24 0.6864 240.0 209.3
12 0 4 0 3 28.15 104.82 38.69 304.65 0.6724 -172.0 -158.5
13 1 39 0 26 28.86 105.02 38.89 305.53 0.6780 869.0 392.6
14 1 -13 0 -13 29.13 104.22 38.09 306.31 0.6711 -315.0 999999
15 0 8 0 5 28.80 101.78 35.65 307.21 0.6436 -856.0 -686.8
16 0 5 0 3 30.55 102.45 36.32 309.24 0.6609 -321.0 -231.4
17 10 26 6 17 29.35 101.22 35.10 308.31 0.6410 -946.6 -770.6
18 1 74 0 48 30.06 101.51 35.38 309.12 0.6483 -555.0 -410.7
19 15 -18 10 -18 30.51 101.20 35.07 309.94 0.6479 -945.2 999999
20 0 9 0 6 30.30 100.45 34.32 310.13 0.6390 -967.0 -789.0


  • 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.