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

12227 66.40 330.29 36.40 181.38 -3.80 1.00 25.29 261.80 0.4326 875.5 358.5


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SDO HMI 2014-12-10 11:00:25 UT

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

1 34.86 297.13 19.20 163.40 -4.02 1.41 25.70 261.42 0.4394 1276.2 374.8
2 0.00 0.85 0.00 0.47 -2.89 1.18 25.47 263.93 0.4338 667.0 516.2
3 0.00 1.28 0.00 0.70 -1.68 1.03 25.32 266.71 0.4300 -612.0 -441.3
4 0.00 5.11 0.00 2.80 -2.42 1.01 25.30 264.99 0.4304 642.0 491.4
5 0.51 2.64 0.28 1.45 -2.72 0.98 25.27 264.29 0.4304 832.0 614.1
6 1.62 3.15 0.89 1.73 -1.48 0.90 25.19 267.18 0.4278 -994.5 -848.3
7 21.65 -1.00 11.86 -1.00 -3.81 0.78 25.07 261.70 0.4291 1311.6 999999
8 0.00 1.11 0.00 0.60 -2.72 359.39 23.68 263.94 0.4052 886.0 671.8
9 0.00 0.60 0.00 0.32 -2.19 359.28 23.57 265.24 0.4028 688.0 618.9
10 0.00 2.39 0.00 1.29 -1.95 359.15 23.44 265.80 0.4004 918.0 761.5
11 0.00 0.94 0.00 0.51 -1.71 359.02 23.31 266.38 0.3980 722.0 616.1
12 0.00 0.94 0.00 0.51 -2.87 358.97 23.26 263.47 0.3988 816.0 573.7
13 0.51 2.13 0.28 1.15 -2.72 358.87 23.16 263.82 0.3969 1010.8 739.4
14 7.25 10.40 3.89 5.58 -3.16 358.08 22.37 262.46 0.3850 -1016.4 -713.8
15 0.00 1.62 0.00 0.87 -2.51 358.01 22.29 264.13 0.3827 -806.0 -655.4


  • 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.