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

8076 128 727 78 454 28.00 109.46 32.65 308.57 0.6097 324.2 230.8


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SOHO MDI 1997-09-02 03:36:03 UT

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

1 32 356 21 232 26.39 114.63 37.82 302.63 0.6544 1160.5 489.6
2 16 -1 10 -1 26.54 113.69 36.88 303.32 0.6448 1243.6 999999
3 0 14 0 9 26.34 111.78 34.97 304.08 0.6223 921.0 643.8
4 0 6 0 3 26.47 109.91 33.10 305.40 0.6020 852.0 738.6
5 7 20 4 13 28.30 110.22 33.41 307.91 0.6168 644.7 454.3
6 0 15 0 9 28.46 108.42 31.61 309.38 0.5984 627.0 469.9
7 0 5 0 3 28.37 107.82 31.01 309.69 0.5913 553.0 572.8
8 0 11 0 7 27.85 105.86 29.05 310.44 0.5662 -533.0 -427.7
9 0 9 0 6 30.17 106.33 29.51 313.45 0.5889 455.0 387.2
10 11 33 7 20 29.90 105.72 28.91 313.58 0.5806 1010.2 670.3
11 0 7 0 4 29.40 105.51 28.70 313.03 0.5745 808.0 821.5
12 15 65 9 39 28.91 105.11 28.29 312.66 0.5664 700.5 329.4
13 5 23 3 13 29.92 102.97 26.16 316.07 0.5529 -529.3 -215.5
14 0 8 0 5 31.40 102.74 25.93 318.37 0.5640 -182.0 -249.6
15 1 138 0 81 30.18 102.18 25.37 317.20 0.5474 -786.0 -575.5
16 0 10 0 6 29.43 101.83 25.02 316.47 0.5369 -975.0 -802.8
17 12 -15 7 -15 30.78 102.15 25.34 318.09 0.5526 -592.6 999999
18 20 -15 12 -15 30.51 101.57 24.76 318.29 0.5444 -1238.1 999999
19 9 -15 5 -15 30.41 101.04 24.23 318.69 0.5383 -1236.2 999999
20 0 7 0 4 34.18 98.53 21.72 326.37 0.5549 -567.0 -516.2


  • 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.