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

12035 4.70 37.81 2.98 23.50 -12.12 225.25 37.06 256.64 0.6079 539.4 576.6


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SDO HMI 2014-04-20 09:00:34 UT

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

1 0.00 0.35 0.00 0.23 -11.41 228.11 39.92 258.40 0.6444 438.0 455.0
2 3.55 12.33 2.27 7.87 -11.75 227.41 39.21 257.75 0.6357 745.3 663.8
3 0.00 1.42 0.00 0.90 -10.27 227.18 38.98 260.05 0.6307 172.0 125.8
4 0.00 0.80 0.00 0.51 -10.16 226.93 38.73 260.19 0.6272 -350.0 -411.0
5 0.00 0.89 0.00 0.56 -9.93 226.23 38.03 260.48 0.6176 661.0 581.9
6 0.00 0.80 0.00 0.50 -12.48 225.68 37.49 256.25 0.6140 -529.0 -415.1
7 0.00 0.98 0.00 0.60 -10.46 224.80 36.60 259.41 0.5987 722.0 554.9
8 0.00 0.98 0.00 0.60 -10.64 224.78 36.59 259.10 0.5988 670.0 526.9
9 1.15 11.36 0.71 6.98 -11.93 224.51 36.32 256.90 0.5971 859.4 728.8
10 0.00 1.06 0.00 0.66 -12.42 224.59 36.39 256.11 0.5991 669.0 537.7
11 0.00 1.42 0.00 0.87 -10.99 223.96 35.76 258.37 0.5879 675.0 629.0
12 0.00 0.89 0.00 0.53 -13.92 221.99 33.80 252.82 0.5673 623.0 525.9
13 0.00 0.89 0.00 0.53 -14.12 221.65 33.45 252.36 0.5632 829.0 675.5
14 0.00 0.89 0.00 0.53 -16.60 221.20 33.00 247.89 0.5656 561.0 407.9
15 0.00 0.89 0.00 0.53 -14.73 220.53 32.33 250.86 0.5496 770.0 592.4
16 0.00 1.06 0.00 0.63 -15.77 220.52 32.32 249.02 0.5533 735.0 593.8
17 0.00 0.80 0.00 0.47 -17.80 220.09 31.89 245.28 0.5558 751.0 691.0


  • 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.