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

8841 54 571 29 308 -29.40 21.58 6.37 193.52 0.4197 -1654.7 -329.4


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SOHO MDI 2000-01-27 19:11:32 UT

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

1 0 4 0 2 -26.48 23.54 8.33 199.97 0.3813 667.0 512.5
2 54 414 29 225 -28.96 23.60 8.39 197.83 0.4188 -1910.1 -698.0
3 0 4 0 2 -27.51 23.05 7.84 197.95 0.3944 -768.0 -713.4
4 -2 -2 -2 -2 -29.18 23.00 7.79 196.46 0.4192 999999 999999
5 0 5 0 2 -29.28 21.50 6.29 193.39 0.4146 -605.0 -509.8
6 0 3 0 1 -30.29 20.59 5.37 190.96 0.4273 604.0 575.8
7 0 5 0 3 -29.96 20.39 5.18 190.74 0.4215 830.0 809.2
8 0 4 0 2 -29.37 19.96 4.75 190.15 0.4112 743.0 723.6
9 0 8 0 4 -29.51 19.31 4.09 188.72 0.4115 946.0 799.5
10 0 4 0 2 -29.93 19.06 3.85 188.04 0.4175 839.0 702.6
11 0 6 0 3 -31.50 18.45 3.23 186.29 0.4409 837.0 741.6
12 0 3 0 2 -30.52 17.70 2.49 185.08 0.4245 824.0 759.2
13 0 46 0 25 -30.15 16.85 1.64 183.41 0.4175 1060.0 774.1
14 0 9 0 5 -30.99 16.02 0.80 181.60 0.4304 810.0 729.9
15 0 4 0 2 -30.70 15.84 0.62 181.26 0.4256 686.0 589.2
16 0 6 0 3 -30.95 15.70 0.49 180.98 0.4296 1008.0 759.3
17 0 7 0 4 -30.95 15.21 0.00 180.00 0.4296 1017.0 769.4
18 0 39 0 21 -30.87 14.32 -0.90 178.20 0.4284 1054.0 699.5


  • 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.