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

9124 4 86 2 57 -12.55 234.22 35.58 241.28 0.6499 760.9 696.6


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SOHO MDI 2000-08-18 22:23:31 UT

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

1 0 2 0 2 -5.14 240.04 41.39 254.86 0.6846 570.0 520.1
2 0 3 0 2 -12.65 236.34 37.69 242.57 0.6745 586.0 529.8
3 0 2 0 2 -12.74 235.89 37.25 242.17 0.6699 561.0 524.6
4 0 3 0 2 -13.16 235.36 36.71 241.25 0.6662 727.0 611.7
5 0 9 0 6 -13.79 235.42 36.78 240.45 0.6707 734.0 624.1
6 4 23 2 15 -13.16 234.85 36.21 240.91 0.6605 797.4 804.6
7 0 5 0 3 -12.12 234.28 35.64 241.96 0.6477 676.0 596.3
8 0 4 0 3 -13.21 234.36 35.71 240.51 0.6552 875.0 771.0
9 0 5 0 3 -11.15 233.45 34.80 242.76 0.6321 658.0 607.3
10 0 3 0 2 -11.88 233.16 34.51 241.53 0.6330 697.0 654.6
11 0 3 0 2 -12.71 233.24 34.59 240.41 0.6391 709.0 670.1
12 0 3 0 2 -12.65 232.88 34.24 240.25 0.6346 525.0 631.8
13 0 4 0 3 -12.25 232.63 33.98 240.62 0.6291 919.0 789.4
14 0 4 0 2 -11.61 232.39 33.75 241.36 0.6223 948.0 844.3
15 0 5 0 3 -11.89 232.14 33.49 240.78 0.6210 979.0 939.1
16 0 5 0 3 -14.30 231.39 32.75 236.83 0.6285 787.0 463.5
17 0 3 0 2 -12.77 230.96 32.32 238.63 0.6129 858.0 708.4


  • 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.