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

9177 66 361 47 253 28.09 20.92 41.63 303.74 0.7070 780.4 191.0


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SOHO MDI 2000-10-01 19:11:32 UT

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

1 16 285 11 201 27.95 21.80 42.51 303.18 0.7154 843.6 310.2
2 11 -1 8 -1 28.28 21.42 42.13 303.77 0.7130 1303.4 999999
3 11 -1 8 -1 27.84 21.09 41.80 303.33 0.7077 1165.9 999999
4 17 -1 12 -1 28.75 21.35 42.06 304.42 0.7143 971.1 999999
5 4 10 3 7 26.82 20.04 40.75 302.41 0.6923 -369.5 -180.0
6 0 3 0 2 26.63 19.73 40.43 302.29 0.6882 -419.0 -423.9
7 0 13 0 9 26.50 19.16 39.87 302.37 0.6816 -738.0 -625.4
8 3 20 2 14 27.53 19.43 40.14 303.66 0.6891 -127.6 103.4
9 0 5 0 3 28.66 19.13 39.84 305.32 0.6913 -666.0 -597.1
10 0 7 0 5 28.90 18.72 39.43 305.85 0.6883 13.0 -105.7
11 4 10 3 7 27.88 18.04 38.75 304.81 0.6762 -456.8 -358.8
12 0 8 0 5 27.77 16.60 37.31 305.42 0.6603 -663.0 -581.2


  • 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.