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

11944 21.87 90.58 80.90 345.80 -11.35 95.88 83.06 259.12 0.9912 158.4 6.7


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SDO HMI 2014-01-14 10:00:24 UT

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

1 13.52 53.74 58.13 242.03 -10.90 96.94 84.12 259.52 0.9939 168.0 -44.6
2 0.00 5.10 0.00 16.68 -9.68 94.80 81.99 260.87 0.9894 247.0 208.6
3 0.00 3.57 0.00 10.99 -10.62 94.27 81.45 259.94 0.9879 249.0 215.8
4 0.00 0.94 0.00 3.07 -11.72 94.93 82.12 258.80 0.9894 215.0 252.9
5 0.77 1.96 2.22 5.69 -10.94 93.66 80.84 259.65 0.9861 -144.1 -55.1
6 0.00 1.79 0.00 5.06 -11.26 93.47 80.65 259.34 0.9855 -265.0 -209.5
7 1.87 3.66 5.89 11.59 -12.77 94.59 81.77 257.75 0.9884 180.0 173.5
8 0.60 2.13 1.59 5.69 -12.60 92.94 80.13 258.00 0.9838 -88.3 -100.3
9 0.00 3.83 0.00 9.40 -12.98 91.87 79.06 257.65 0.9803 -14.0 -85.7
10 1.45 13.18 3.86 33.86 -14.34 92.84 80.02 256.23 0.9833 309.1 220.4
11 2.04 -10.00 5.07 -10.00 -14.15 92.05 79.24 256.45 0.9808 109.8 999999
12 1.11 -10.00 2.86 -10.00 -14.63 92.56 79.74 255.94 0.9824 243.7 999999
13 0.51 -10.00 1.28 -10.00 -14.45 92.13 79.31 256.14 0.9810 285.7 999999
14 0.00 0.68 0.00 1.74 -14.92 92.45 79.64 255.66 0.9820 154.0 131.1


  • 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.