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

8844 124 711 90 512 4.83 72.10 45.47 282.15 0.7281 -26.6 -99.3


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SOHO MDI 2000-01-26 22:23:32 UT

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

1 20 261 15 201 3.63 75.98 49.35 279.45 0.7700 969.9 302.3
2 26 -1 20 -1 4.51 75.76 49.13 280.63 0.7693 1089.3 999999
3 -2 -1 -2 -1 4.07 75.60 48.97 280.11 0.7667 999999 999999
4 0 11 0 8 4.49 74.48 47.84 280.94 0.7551 882.0 692.2
5 9 20 7 15 4.67 73.69 47.06 281.38 0.7466 1000.5 763.5
6 8 21 6 15 3.63 73.22 46.58 280.12 0.7388 837.5 717.3
7 0 5 0 3 5.06 72.61 45.97 282.20 0.7351 450.0 483.3
8 0 5 0 4 3.33 72.36 45.73 279.95 0.7281 402.0 455.2
9 0 3 0 2 5.18 72.12 45.49 282.51 0.7298 506.0 547.5
10 0 9 0 6 5.07 71.61 44.98 282.51 0.7236 866.0 645.4
11 0 6 0 4 3.89 70.28 43.65 281.28 0.7046 -555.0 -400.2
12 16 226 11 155 4.36 69.78 43.15 282.09 0.6998 -809.5 -536.5
13 0 4 0 3 7.20 69.69 43.05 286.06 0.7072 -460.0 -381.2
14 16 -12 11 -12 5.08 68.95 42.31 283.38 0.6917 -1385.8 999999
15 6 -12 4 -12 5.67 69.00 42.37 284.19 0.6941 -972.0 999999
16 0 6 0 4 6.15 68.68 42.05 284.98 0.6917 -931.0 -841.1
17 23 134 16 92 6.76 68.38 41.74 285.95 0.6900 -1437.2 -634.1


  • 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.