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

12057 56.54 300.26 30.74 163.44 14.78 248.77 -16.95 42.77 0.4166 -534.1 -308.4


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SDO HMI 2014-05-11 18:00:37 UT

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

1 24.01 277.76 13.07 151.00 15.06 249.05 -16.67 41.88 0.4166 -1115.5 -402.9
2 29.66 -1.00 16.11 -1.00 14.61 249.05 -16.67 42.63 0.4115 -1229.1 999999
3 0.00 0.99 0.00 0.55 18.02 248.58 -17.13 38.08 0.4561 775.0 639.4
4 2.87 -1.00 1.56 -1.00 14.94 248.63 -17.09 42.78 0.4197 -867.1 999999
5 0.00 2.96 0.00 1.59 12.48 248.32 -17.39 47.70 0.3962 936.0 685.6
6 0.00 1.79 0.00 0.97 12.97 247.24 -18.47 48.46 0.4142 670.0 481.0
7 0.00 1.43 0.00 0.78 13.54 246.97 -18.75 47.82 0.4233 660.0 519.9
8 0.00 2.15 0.00 1.17 13.17 246.93 -18.78 48.57 0.4199 733.0 591.3
9 0.00 1.79 0.00 0.98 14.09 246.76 -18.95 47.17 0.4314 1009.0 855.8
10 0.00 1.79 0.00 0.99 15.07 246.51 -19.21 45.85 0.4446 891.0 669.6
11 0.00 1.08 0.00 0.59 14.22 246.35 -19.36 47.53 0.4375 753.0 585.7
12 0.00 0.36 0.00 0.20 14.51 245.93 -19.79 47.63 0.4454 784.0 732.2
13 0.00 1.79 0.00 0.99 14.80 245.83 -19.88 47.27 0.4494 644.0 449.6
14 0.00 0.90 0.00 0.50 15.26 245.39 -20.33 47.13 0.4591 657.0 510.2
15 0.00 1.08 0.00 0.59 11.55 244.32 -21.39 55.16 0.4373 613.0 426.6
16 0.00 1.08 0.00 0.62 16.67 240.95 -24.76 50.32 0.5234 650.0 510.1
17 0.00 1.43 0.00 0.83 16.58 240.76 -24.96 50.67 0.5248 757.0 646.5
18 0.00 1.88 0.00 1.09 15.65 240.74 -24.97 52.14 0.5169 774.0 650.8


  • 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.