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

9149 81 604 76 576 12.94 355.71 -59.27 79.15 0.8536 276.6 -12.1


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SOHO MDI 2000-08-29 19:11:31 UT

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

1 17 219 15 188 13.60 0.21 -54.77 78.38 0.8128 1289.2 482.8
2 11 -1 9 -1 13.46 359.55 -55.44 78.57 0.8193 898.6 999999
3 9 -1 8 -1 13.68 358.60 -56.39 78.31 0.8285 561.8 999999
4 0 5 0 4 13.73 357.53 -57.45 78.26 0.8385 448.0 330.7
5 16 115 15 105 12.95 357.37 -57.62 79.19 0.8400 765.9 161.4
6 0 5 0 5 14.02 355.63 -59.36 77.93 0.8557 157.0 150.3
7 0 6 0 6 14.25 355.20 -59.79 77.65 0.8594 207.0 81.5
8 0 20 0 19 13.35 355.02 -59.97 78.71 0.8610 -385.0 -392.4
9 0 11 0 12 13.35 353.52 -61.47 78.69 0.8738 -780.0 -554.6
10 13 211 13 223 12.40 352.63 -62.36 79.75 0.8812 -973.0 -444.3
11 14 -10 15 -10 12.15 351.76 -63.23 80.01 0.8882 -592.8 999999
12 0 4 0 5 13.25 351.16 -63.82 78.75 0.8925 -397.0 -297.3
13 1 8 1 9 12.51 349.23 -65.76 79.51 0.9071 -362.8 -283.3


  • 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.