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

11374 71.01 376.78 37.83 200.67 -18.17 352.17 13.18 216.08 0.3700 1083.9 409.8


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SDO HMI 2011-12-15 04:58:55 UT

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

1 0.00 1.02 0.00 0.55 -19.24 354.21 15.23 218.16 0.4030 -828.0 -676.3
2 53.04 342.83 28.23 182.60 -17.86 352.36 13.37 216.98 0.3676 1410.6 410.6
3 13.20 -2.00 7.06 -2.00 -19.03 352.13 13.15 214.58 0.3805 992.0 999999
4 0.00 1.19 0.00 0.63 -17.00 351.47 12.48 216.65 0.3479 170.0 201.8
5 2.30 4.17 1.22 2.22 -18.79 351.41 12.42 213.49 0.3707 1103.1 803.1
6 0.00 2.72 0.00 1.42 -15.16 350.92 11.93 218.93 0.3189 -1050.0 -837.4
7 0.00 3.66 0.00 1.95 -19.07 351.17 12.19 212.57 0.3723 958.0 781.9
8 2.47 12.51 1.32 6.68 -19.50 351.02 12.03 211.58 0.3768 902.8 753.1
9 0.00 2.47 0.00 1.29 -16.33 350.58 11.59 215.88 0.3305 -806.0 -607.8
10 0.00 0.85 0.00 0.46 -20.88 350.87 11.88 209.33 0.3943 651.0 519.9
11 0.00 1.19 0.00 0.63 -19.32 350.33 11.34 210.39 0.3686 767.0 617.7
12 0.00 1.28 0.00 0.69 -20.66 350.30 11.31 208.46 0.3869 884.0 740.3
13 0.00 1.70 0.00 0.92 -22.76 346.74 7.75 198.46 0.3946 853.0 578.5
14 0.00 1.19 0.00 0.63 -20.83 345.55 6.56 197.39 0.3592 884.0 687.2


  • 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.