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

9330 35 330 20 191 24.18 115.03 -7.46 12.89 0.5220 1383.7 425.7


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SOHO MDI 2001-02-04 12:47:32 UT

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

1 32 202 18 115 23.34 117.18 -5.31 9.78 0.5024 1689.5 591.9
2 3 10 2 6 24.65 115.42 -7.06 12.30 0.5267 884.4 737.9
3 0 13 0 7 23.37 115.07 -7.41 13.51 0.5092 1096.0 849.0
4 0 6 0 4 23.24 114.40 -8.08 14.74 0.5099 877.0 715.2
5 0 9 0 5 24.68 113.67 -8.81 15.20 0.5332 746.0 610.3
6 0 5 0 3 23.26 113.52 -8.97 16.26 0.5136 571.0 567.2
7 0 3 0 2 23.85 112.62 -9.86 17.40 0.5259 674.0 646.7
8 0 2 0 1 23.19 112.59 -9.90 17.88 0.5167 634.0 587.2
9 0 6 0 3 19.33 112.73 -9.76 20.40 0.4608 969.0 791.1
10 0 5 0 3 25.34 112.12 -10.37 17.31 0.5489 644.0 530.3
11 0 15 0 9 25.08 111.58 -10.91 18.31 0.5477 771.0 515.5
12 0 10 0 6 24.46 111.42 -11.07 18.96 0.5399 845.0 590.7
13 0 3 0 2 28.81 110.85 -11.64 17.17 0.6012 -728.0 -697.6
14 0 3 0 2 27.53 110.15 -12.34 18.90 0.5873 -493.0 -519.5
15 0 8 0 5 27.63 109.56 -12.93 19.66 0.5914 -941.0 -750.0
16 0 5 0 3 29.05 108.93 -13.56 19.62 0.6127 -521.0 -515.2
17 0 3 0 2 29.43 108.74 -13.74 19.63 0.6184 -503.0 -439.7
18 0 4 0 2 27.75 108.79 -13.70 20.65 0.5966 -752.0 -670.2
19 0 3 0 2 29.77 108.47 -14.02 19.77 0.6240 -667.0 -611.8
20 0 15 0 9 27.43 108.56 -13.93 21.17 0.5937 -842.0 -843.8


  • 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.