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

12137 0.00 27.17 0.00 14.87 -18.52 160.90 -3.85 171.43 0.4272 761.3 652.0


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SDO HMI 2014-08-09 00:00:39 UT

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

1 0.00 1.26 0.00 0.68 -17.57 165.00 0.25 180.58 0.4065 852.0 629.6
2 0.00 2.89 0.00 1.56 -17.37 164.39 -0.36 179.15 0.4033 804.0 607.7
3 0.00 0.99 0.00 0.54 -17.14 163.73 -1.02 177.54 0.3999 685.0 563.6
4 0.00 1.90 0.00 1.04 -19.58 163.19 -1.56 176.64 0.4392 829.0 721.0
5 0.00 1.72 0.00 0.95 -20.14 160.66 -4.09 171.44 0.4519 726.0 678.0
6 0.00 1.26 0.00 0.70 -20.24 160.39 -4.36 170.94 0.4542 913.0 790.2
7 0.00 1.08 0.00 0.60 -19.63 160.38 -4.37 170.67 0.4448 858.0 718.5
8 0.00 0.81 0.00 0.45 -20.38 160.10 -4.65 170.38 0.4570 560.0 387.0
9 0.00 2.17 0.00 1.18 -17.39 159.86 -4.89 168.56 0.4114 943.0 790.0
10 0.00 0.99 0.00 0.56 -21.06 159.68 -5.07 169.83 0.4686 663.0 447.5
11 0.00 1.63 0.00 0.90 -20.35 159.68 -5.07 169.52 0.4577 753.0 569.7
12 0.00 7.77 0.00 4.21 -17.26 159.61 -5.14 167.91 0.4102 763.0 688.4
13 0.00 0.99 0.00 0.56 -21.20 159.48 -5.27 169.49 0.4713 780.0 642.3
14 0.00 0.72 0.00 0.40 -18.80 159.18 -5.57 167.76 0.4355 575.0 493.9
15 0.00 0.99 0.00 0.54 -18.03 159.11 -5.64 167.20 0.4238 715.0 576.2


  • 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.