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

8844 121 603 68 349 5.07 71.39 28.95 289.69 0.5139 -188.9 92.0


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SOHO MDI 2000-01-25 17:35:32 UT

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

1 7 250 4 148 4.50 74.36 31.92 286.76 0.5526 1022.6 789.9
2 18 -1 10 -1 4.03 74.29 31.85 285.98 0.5497 1523.8 999999
3 4 -1 2 -1 4.29 73.90 31.45 286.63 0.5452 1685.6 999999
4 7 -1 4 -1 3.93 73.84 31.39 286.04 0.5429 1836.6 999999
5 8 -1 5 -1 4.67 73.82 31.38 287.34 0.5459 1295.1 999999
6 5 -1 3 -1 4.55 72.97 30.52 287.61 0.5333 1523.7 999999
7 0 7 0 4 4.55 72.08 29.63 288.13 0.5208 717.0 708.6
8 0 9 0 5 3.96 71.96 29.52 287.11 0.5164 877.0 744.9
9 0 8 0 5 4.71 71.51 29.07 288.79 0.5135 672.0 548.6
10 0 4 0 3 4.05 71.39 28.95 287.62 0.5087 870.0 761.6
11 6 325 3 184 5.69 69.90 27.45 291.72 0.4959 -16.2 -523.8
12 24 -11 13 -11 5.24 69.40 26.95 291.24 0.4863 -1472.8 999999
13 15 -11 9 -11 5.67 69.38 26.93 292.07 0.4884 -1272.9 999999
14 7 -11 4 -11 6.64 69.39 26.94 293.90 0.4943 -1196.9 999999
15 20 -11 11 -11 6.23 68.84 26.40 293.56 0.4843 -1752.5 999999


  • 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.