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

9147 46 331 23 165 5.73 359.54 0.93 211.73 0.0311 1918.8 706.9


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SOHO MDI 2000-09-03 01:35:31 UT

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

1 28 272 14 135 5.63 0.14 1.54 223.61 0.0389 2075.6 741.6
2 18 -1 9 -1 5.51 359.63 1.02 210.61 0.0351 1917.8 999999
3 0 9 0 4 6.65 359.20 0.59 225.12 0.0145 921.0 763.2
4 0 7 0 4 7.36 358.53 -0.08 33.25 0.0025 -333.0 -300.6
5 0 5 0 2 6.77 358.21 -0.40 139.91 0.0107 -356.0 -332.1
6 0 8 0 4 4.93 357.90 -0.71 162.99 0.0424 925.0 835.4
7 0 9 0 5 6.30 357.54 -1.07 131.50 0.0248 672.0 699.9
8 0 8 0 4 6.30 357.30 -1.30 125.91 0.0280 1014.0 874.8
9 0 8 0 4 6.34 356.99 -1.62 119.18 0.0323 1000.0 796.7
10 0 5 0 3 6.53 356.00 -2.61 105.18 0.0470 582.0 602.9


  • 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.