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

8076 150 907 88 535 27.94 109.31 26.65 313.29 0.5458 263.4 210.8


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SOHO MDI 1997-09-01 16:59:33 UT

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

1 52 425 32 259 26.37 114.58 31.93 306.03 0.5881 1400.5 487.2
2 -1 -1 -1 -1 26.29 113.79 31.13 306.46 0.5786 999999 999999
3 12 31 7 18 26.40 111.99 29.34 307.97 0.5589 986.0 643.4
4 0 11 0 6 26.85 109.83 27.17 310.50 0.5379 756.0 725.8
5 0 9 0 5 27.35 109.91 27.25 311.21 0.5428 550.0 513.3
6 0 55 0 32 28.45 108.41 25.76 314.28 0.5358 891.0 527.3
7 0 8 0 5 27.79 106.34 23.68 315.39 0.5081 -562.0 -569.4
8 9 76 5 43 28.29 105.58 22.93 316.99 0.5050 -489.8 54.2
9 6 17 4 10 30.40 105.99 23.34 319.64 0.5297 639.2 477.2
10 8 -8 4 -8 28.72 105.39 22.74 317.86 0.5072 978.3 999999
11 0 28 0 16 29.70 105.23 22.58 319.49 0.5155 848.0 635.8
12 5 -8 3 -8 28.99 105.02 22.36 318.70 0.5062 204.8 999999
13 5 -8 3 -8 29.04 104.79 22.13 319.04 0.5045 -687.6 999999
14 0 8 0 5 28.82 104.01 21.36 319.63 0.4946 141.0 85.4
15 12 45 7 26 29.82 103.56 20.90 321.64 0.5007 -594.5 -249.2
16 29 148 16 84 30.20 102.53 19.87 323.46 0.4955 -1117.3 -491.9
17 0 18 0 10 29.36 102.30 19.65 322.56 0.4841 -903.0 -737.4
18 0 5 0 3 31.57 102.68 20.03 325.11 0.5121 -343.0 -238.4
19 -16 -16 -16 -16 30.52 102.16 19.50 324.37 0.4957 999999 999999
20 12 -16 7 -16 30.28 101.63 18.97 324.74 0.4884 -1225.7 999999
21 0 7 0 4 33.81 100.12 17.46 331.12 0.5182 -429.0 -453.1
22 0 16 0 9 33.81 98.69 16.03 333.05 0.5083 -782.0 -660.1


  • 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.