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

9213 95 767 48 398 2.69 271.90 -16.08 94.95 0.2791 1801.4 692.7


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SOHO MDI 2000-11-01 23:59:32 UT

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

1 34 696 17 358 2.24 272.97 -15.01 96.95 0.2618 2217.5 731.3
2 15 -1 8 -1 2.19 272.46 -15.52 96.87 0.2706 1664.4 999999
3 12 -1 6 -1 3.38 272.08 -15.90 92.38 0.2750 1660.8 999999
4 0 6 0 3 0.80 271.95 -16.04 101.54 0.2832 832.0 684.0
5 6 -1 3 -1 3.33 271.60 -16.38 92.45 0.2831 1348.2 999999
6 28 -1 14 -1 2.87 271.57 -16.42 94.08 0.2843 1790.2 999999
7 0 7 0 4 0.48 271.59 -16.39 102.34 0.2902 557.0 387.4
8 0 5 0 3 4.36 271.01 -16.97 88.80 0.2924 627.0 500.6
9 0 8 0 4 4.01 270.74 -17.24 89.99 0.2970 51.0 117.1
10 0 9 0 5 4.40 269.43 -18.55 88.66 0.3187 574.0 417.0
11 0 6 0 3 2.84 267.17 -20.81 93.03 0.3569 835.0 722.5
12 0 5 0 3 3.92 266.98 -21.00 89.99 0.3591 498.0 388.5
13 0 13 0 7 3.26 266.96 -21.02 91.82 0.3600 682.0 666.1
14 0 3 0 2 2.29 266.73 -21.25 94.45 0.3649 728.0 730.1
15 0 3 0 2 4.71 266.46 -21.52 87.79 0.3675 -904.0 -780.8
16 0 3 0 2 4.55 264.96 -23.02 88.22 0.3917 -414.0 -314.1
17 0 3 0 2 4.82 263.60 -24.38 87.56 0.4135 -550.0 -514.0


  • 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.