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

8076 138 859 81 512 27.90 109.41 27.86 312.17 0.5583 228.6 193.3


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SOHO MDI 1997-09-01 18:59:33 UT

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

1 49 425 30 262 26.42 114.69 33.14 305.31 0.6022 1389.3 475.6
2 -1 -1 -1 -1 26.35 113.78 32.23 305.80 0.5915 999999 999999
3 10 27 6 16 26.42 111.96 30.41 307.19 0.5712 935.3 637.7
4 0 12 0 7 26.80 109.80 28.25 309.48 0.5495 761.0 749.7
5 0 7 0 4 27.30 109.89 28.33 310.19 0.5542 529.0 478.7
6 0 14 0 8 28.39 108.34 26.79 313.23 0.5462 785.0 632.4
7 0 6 0 4 28.92 108.03 26.48 314.30 0.5475 327.0 407.1
8 0 12 0 7 27.78 106.25 24.70 314.32 0.5188 -603.0 -486.9
9 9 82 5 47 28.28 105.55 23.99 315.82 0.5159 -439.4 87.3
10 0 11 0 7 30.35 106.02 24.47 318.36 0.5401 741.0 573.9
11 5 -9 3 -9 28.62 105.48 23.93 316.41 0.5184 696.6 999999
12 0 24 0 14 29.91 105.31 23.76 318.49 0.5290 899.0 752.8
13 12 -9 7 -9 28.90 105.01 23.46 317.33 0.5163 80.3 999999
14 0 5 0 3 28.78 103.87 22.31 318.44 0.5036 -18.0 -72.4
15 11 35 6 20 29.87 103.43 21.88 320.53 0.5104 -497.1 -225.3
16 0 20 0 12 29.36 102.21 20.66 321.29 0.4936 -951.0 -745.1
17 31 144 18 82 30.30 102.36 20.81 322.42 0.5050 -1077.3 -499.5
18 0 7 0 4 31.62 102.62 21.07 323.91 0.5216 -301.0 -222.8
19 -17 -17 -17 -17 30.61 102.04 20.49 323.24 0.5055 999999 999999
20 8 -17 4 -17 30.33 101.50 19.95 323.55 0.4976 -1232.7 999999
21 0 10 0 5 28.73 101.17 19.62 321.68 0.4768 -820.0 -677.9
22 0 6 0 3 33.86 100.07 18.51 329.82 0.5266 -479.0 -411.0
23 3 12 2 7 33.87 98.63 17.08 331.69 0.5162 -775.8 -683.9


  • 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.