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

12035 52.71 334.76 104.74 666.47 -12.24 226.33 76.12 258.59 0.9680 164.9 182.7


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SDO HMI 2014-04-23 06:00:35 UT

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

1 8.98 41.23 24.33 114.00 -11.05 230.32 80.10 259.66 0.9837 117.5 -52.6
2 14.84 113.04 31.24 236.23 -9.95 227.24 77.02 260.94 0.9730 340.9 369.8
3 2.31 11.29 4.77 23.73 -12.40 226.99 76.78 258.42 0.9716 179.7 347.9
4 0.98 -2.00 1.82 -2.00 -10.50 225.42 75.21 260.45 0.9652 87.7 999999
5 0.00 0.98 0.00 1.89 -12.32 226.11 75.90 258.54 0.9680 -100.0 -44.9
6 0.00 5.42 0.00 9.13 -10.82 223.68 73.47 260.17 0.9569 666.0 490.9
7 0.00 1.51 0.00 2.57 -11.17 223.91 73.70 259.80 0.9580 247.0 223.4
8 1.07 92.42 1.78 148.19 -12.77 223.63 73.41 258.14 0.9564 -164.8 138.2
9 1.42 -8.00 2.39 -8.00 -12.98 223.68 73.47 257.91 0.9566 -75.7 999999
10 1.42 63.36 2.71 123.54 -15.85 225.91 75.70 254.89 0.9667 653.9 34.1
11 7.29 -10.00 14.03 -10.00 -16.25 226.10 75.89 254.48 0.9675 380.8 999999
12 2.49 -8.00 3.98 -8.00 -13.17 222.85 72.64 257.73 0.9524 -661.1 999999
13 7.73 -8.00 12.07 -8.00 -13.49 222.37 72.15 257.40 0.9498 -38.5 999999
14 0.89 -8.00 1.37 -8.00 -14.04 222.07 71.86 256.82 0.9482 638.5 999999
15 0.00 0.44 0.00 0.65 -14.31 221.08 70.87 256.55 0.9428 321.0 302.2
16 3.29 5.07 4.25 6.54 -16.73 218.11 67.89 253.92 0.9251 -504.9 -295.7


  • 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.