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

12121n 0.00 21.49 0.00 10.85 12.55 254.79 1.87 299.49 0.1688 818.5 619.1


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SDO HMI 2014-08-02 08:00:40 UT

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

1 0.00 1.00 0.00 0.50 9.42 259.25 6.32 299.93 0.1260 880.0 703.4
2 0.00 1.54 0.00 0.77 10.15 258.99 6.06 305.94 0.1289 1001.0 817.1
3 0.00 2.54 0.00 1.28 16.48 258.93 6.01 331.49 0.2111 745.0 572.6
4 0.00 1.18 0.00 0.59 9.88 258.76 5.84 305.15 0.1231 968.0 691.5
5 0.00 1.54 0.00 0.78 15.71 258.37 5.44 331.97 0.1951 740.0 571.5
6 0.00 1.36 0.00 0.68 9.46 258.17 5.24 305.02 0.1105 892.0 708.1
7 0.00 1.45 0.00 0.72 8.13 257.59 4.66 296.29 0.0902 744.0 521.4
8 0.00 1.81 0.00 0.92 17.99 257.38 4.45 340.65 0.2238 472.0 429.4
9 0.00 2.08 0.00 1.04 3.36 256.93 4.01 238.02 0.0826 976.0 704.7
10 0.00 1.45 0.00 0.72 4.00 255.69 2.76 236.00 0.0582 928.0 762.2
11 0.00 1.27 0.00 0.63 5.38 254.59 1.67 253.67 0.0303 918.0 657.1
12 0.00 1.18 0.00 0.60 20.19 249.00 -3.92 14.54 0.2569 786.0 570.0
13 0.00 1.09 0.00 0.57 23.14 243.96 -8.96 25.67 0.3322 793.0 597.6
14 0.00 1.09 0.00 0.56 17.22 243.07 -9.86 39.51 0.2582 744.0 507.6
15 0.00 0.91 0.00 0.49 22.35 236.18 -16.75 42.81 0.3938 690.0 482.6


  • 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.