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

9213 100 749 53 400 2.57 271.70 -21.55 93.73 0.3694 1681.8 659.2


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SOHO MDI 2000-11-01 14:23:32 UT

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

1 31 681 16 362 2.28 272.89 -20.36 94.85 0.3504 2166.7 685.9
2 13 -1 7 -1 2.15 272.40 -20.85 95.07 0.3587 1602.2 999999
3 0 5 0 3 -0.05 272.41 -20.84 101.11 0.3641 -338.0 -232.5
4 0 3 0 2 0.87 272.29 -20.96 98.54 0.3633 556.0 493.3
5 13 -1 7 -1 3.41 271.96 -21.29 91.48 0.3642 1618.6 999999
6 0 9 0 5 0.94 271.92 -21.34 98.19 0.3692 846.0 560.9
7 5 -1 3 -1 2.32 271.61 -21.64 94.37 0.3712 1260.8 999999
8 38 -1 20 -1 2.89 271.43 -21.82 92.79 0.3733 1555.3 999999
9 0 5 0 2 4.34 270.86 -22.40 88.88 0.3817 164.0 231.6
10 0 7 0 4 4.67 270.13 -23.12 88.03 0.3933 595.0 554.3
11 0 3 0 2 3.21 266.77 -26.48 91.29 0.4472 655.0 649.6
12 0 8 0 5 2.10 266.71 -26.54 93.78 0.4494 846.0 622.7
13 0 3 0 2 0.47 266.56 -26.69 97.33 0.4548 613.0 670.3
14 0 12 0 6 0.68 265.82 -27.43 96.65 0.4657 435.0 374.8
15 0 5 0 3 2.24 265.41 -27.84 93.21 0.4694 544.0 412.7
16 0 4 0 2 1.48 263.58 -29.68 94.42 0.4985 828.0 649.2
17 0 4 0 2 2.76 261.71 -31.54 91.62 0.5249 -386.0 -460.6


  • 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.