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

8933 109 467 80 351 16.42 267.87 43.43 298.65 0.7532 -3.3 57.2


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SOHO MDI 2000-04-02 20:47:33 UT

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

1 0 5 0 4 15.50 271.18 46.74 295.84 0.7820 217.0 274.0
2 13 194 10 152 16.25 270.76 46.32 296.93 0.7810 365.8 628.0
3 12 -2 9 -2 15.46 270.23 45.79 296.24 0.7725 1050.4 999999
4 12 -2 9 -2 16.37 270.21 45.77 297.34 0.7762 1181.5 999999
5 0 4 0 3 14.33 269.64 45.19 295.16 0.7618 589.0 454.1
6 10 -2 8 -2 15.97 269.92 45.47 297.01 0.7716 1237.4 999999
7 0 3 0 2 14.08 269.12 44.68 295.10 0.7554 -370.0 -207.5
8 2 9 2 7 17.19 268.90 44.46 298.96 0.7671 524.8 328.2
9 0 12 0 9 15.68 268.41 43.97 297.41 0.7552 456.0 251.4
10 0 5 0 4 15.39 267.82 43.38 297.35 0.7479 33.0 -28.9
11 0 8 0 6 17.24 268.06 43.62 299.47 0.7592 430.0 308.3
12 0 12 0 9 15.48 266.91 42.47 297.95 0.7389 -473.0 -223.5
13 0 4 0 3 15.97 266.82 42.38 298.60 0.7404 -83.0 -173.8
14 0 5 0 4 17.66 266.96 42.51 300.58 0.7503 5.0 -47.7
15 10 75 7 54 15.97 265.78 41.34 299.18 0.7297 -553.0 -645.3
16 7 -15 5 -15 16.34 265.61 41.16 299.73 0.7298 -478.7 999999
17 18 86 13 62 17.49 265.32 40.88 301.32 0.7330 -788.2 -334.3
18 12 41 8 29 16.85 264.72 40.28 300.90 0.7234 -1139.8 -828.7
19 13 -17 9 -17 17.87 264.83 40.39 302.08 0.7302 -1047.4 999999
20 0 4 0 3 19.07 264.91 40.46 303.47 0.7377 -361.0 -457.3


  • 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.