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

12201m 0.00 16.51 0.00 9.54 -20.81 79.86 -18.05 145.89 0.5113 603.6 514.8


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SDO HMI 2014-11-03 21:00:28 UT

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

1 0.00 0.86 0.00 0.48 -19.95 84.47 -13.43 151.72 0.4629 731.0 525.3
2 0.00 2.33 0.00 1.28 -17.53 84.51 -13.40 148.96 0.4302 906.0 653.4
3 0.00 1.30 0.00 0.74 -22.14 83.24 -14.67 151.95 0.5009 488.0 442.7
4 0.00 1.64 0.00 0.93 -20.82 83.05 -14.86 150.26 0.4851 680.0 525.1
5 0.00 1.30 0.00 0.73 -20.86 82.88 -15.03 150.02 0.4869 778.0 672.1
6 0.00 1.04 0.00 0.59 -20.50 82.85 -15.06 149.57 0.4825 587.0 499.8
7 0.00 1.12 0.00 0.64 -20.54 82.55 -15.36 149.13 0.4853 812.0 519.8
8 0.00 0.78 0.00 0.45 -20.39 78.84 -19.06 143.33 0.5147 731.0 642.3
9 0.00 0.86 0.00 0.52 -22.82 76.54 -21.37 143.18 0.5625 400.0 389.0
10 0.00 1.04 0.00 0.61 -20.24 76.77 -21.14 140.33 0.5322 305.0 464.9
11 0.00 0.95 0.00 0.56 -20.71 76.60 -21.31 140.70 0.5388 511.0 399.0
12 0.00 0.78 0.00 0.46 -20.55 76.14 -21.76 139.93 0.5414 676.0 613.4
13 0.00 1.30 0.00 0.76 -20.63 75.82 -22.08 139.62 0.5452 350.0 345.4
14 0.00 1.21 0.00 0.79 -25.49 68.94 -28.97 138.02 0.6560 495.0 437.6


  • 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.