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

9213 91 611 58 375 2.48 271.69 -36.50 91.71 0.5966 1415.3 527.3


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SOHO MDI 2000-10-31 11:11:32 UT

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

1 34 598 21 367 2.33 272.62 -35.57 92.08 0.5838 1761.0 537.6
2 2 -1 2 -1 1.96 272.15 -36.03 92.65 0.5908 1202.9 999999
3 4 -1 3 -1 1.76 272.01 -36.17 92.96 0.5930 1142.4 999999
4 5 -1 3 -1 3.45 271.77 -36.42 90.09 0.5949 1241.7 999999
5 6 -1 4 -1 1.94 271.67 -36.51 92.62 0.5975 1155.8 999999
6 29 -1 18 -1 2.58 271.32 -36.87 91.50 0.6018 1384.3 999999
7 4 -1 2 -1 3.35 271.24 -36.95 90.22 0.6023 1090.3 999999
8 7 -1 5 -1 2.99 270.96 -37.22 90.79 0.6064 968.2 999999
9 0 4 0 2 2.78 266.62 -41.57 90.72 0.6651 372.0 348.1
10 0 3 0 2 2.06 266.18 -42.01 91.75 0.6715 660.0 459.0
11 0 2 0 1 -2.72 262.78 -45.41 98.04 0.7208 155.0 178.3
12 0 4 0 3 3.66 260.00 -48.18 88.98 0.7462 -609.0 -451.0


  • 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.