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

9147 44 300 22 150 5.62 359.80 -1.45 142.54 0.0404 1972.5 739.5


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SOHO MDI 2000-09-02 20:47:31 UT

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

1 0 5 0 3 6.73 2.40 1.15 246.03 0.0219 578.0 405.4
2 31 266 15 132 5.59 0.19 -1.06 147.32 0.0343 2129.3 760.6
3 13 -2 7 -2 5.43 359.64 -1.61 138.32 0.0423 1852.0 999999
4 0 10 0 5 6.57 359.40 -1.85 109.85 0.0343 761.0 547.4
5 0 2 0 1 6.08 357.43 -3.83 106.63 0.0696 793.0 787.2
6 0 6 0 3 2.38 356.74 -4.52 136.93 0.1157 534.0 471.9
7 0 6 0 3 8.82 356.33 -4.92 71.66 0.0898 873.0 751.8
8 0 5 0 3 6.50 355.96 -5.29 97.63 0.0929 755.0 703.7


  • 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.