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

9176 74 436 65 393 -9.58 324.29 54.89 254.15 0.8400 -566.8 -279.3


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SOHO MDI 2000-10-07 02:22:32 UT

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

1 30 245 29 234 -8.66 326.46 57.06 255.85 0.8577 -971.9 -276.4
2 -1 -1 -1 -1 -9.09 326.34 56.95 255.33 0.8576 999999 999999
3 0 3 0 2 -8.29 322.44 53.05 255.19 0.8202 -326.0 -419.5
4 0 5 0 4 -9.86 322.12 52.73 253.23 0.8210 -708.0 -554.8
5 0 3 0 2 -7.94 321.66 52.27 255.38 0.8117 -611.0 -425.4
6 0 8 0 7 -11.95 322.46 53.07 250.90 0.8298 -443.0 -315.8
7 4 60 3 50 -9.01 321.55 52.15 254.07 0.8133 -524.7 -140.8
8 10 -7 8 -7 -9.49 321.52 52.12 253.49 0.8143 -330.3 999999
9 5 -7 4 -7 -9.25 321.08 51.69 253.64 0.8094 442.0 999999
10 11 70 9 60 -12.20 321.61 52.22 250.32 0.8226 -831.7 -618.1
11 5 -10 4 -10 -11.65 321.33 51.93 250.87 0.8184 -788.1 999999
12 0 3 0 2 -11.21 320.58 51.18 251.12 0.8100 -302.0 -381.8
13 7 19 6 16 -9.80 320.06 50.67 252.64 0.8008 512.4 207.8
14 0 4 0 4 -10.78 320.29 50.89 251.54 0.8058 -260.0 -299.8
15 0 7 0 5 -10.43 319.46 50.06 251.67 0.7966 537.0 363.5
16 2 6 2 5 -10.82 319.30 49.90 251.15 0.7962 403.0 285.9
17 0 3 0 2 -8.18 317.58 48.18 253.79 0.7705 325.0 284.4


  • 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.