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

11360 0.00 12.14 0.00 6.59 17.77 213.70 17.82 314.58 0.4105 783.6 670.9


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SDO HMI 2011-11-28 17:58:56 UT

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

1 0.00 0.94 0.00 0.53 18.20 219.29 23.41 307.86 0.4801 736.0 648.0
2 0.00 0.77 0.00 0.43 18.20 218.75 22.87 308.48 0.4736 869.0 766.8
3 0.00 1.20 0.00 0.65 17.32 213.32 17.44 314.17 0.4006 793.0 633.8
4 0.00 0.60 0.00 0.32 17.72 213.29 17.41 314.96 0.4045 697.0 498.7
5 0.00 1.54 0.00 0.83 17.32 213.16 17.27 314.43 0.3987 861.0 662.8
6 0.00 1.71 0.00 0.92 16.76 212.97 17.09 313.67 0.3907 914.0 727.3
7 0.00 1.97 0.00 1.06 17.81 212.94 17.06 315.69 0.4016 812.0 722.1
8 0.00 2.56 0.00 1.38 17.41 212.42 16.54 315.82 0.3914 758.0 697.7
9 0.00 0.85 0.00 0.47 21.31 211.48 15.60 323.94 0.4273 612.0 486.2


  • 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.