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

8841 67 531 37 293 -29.30 21.98 10.51 201.54 0.4363 -1645.9 -408.1


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SOHO MDI 2000-01-28 02:00:32 UT

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

1 0 7 0 4 -26.32 23.26 11.79 207.31 0.4011 727.0 448.5
2 67 427 37 235 -28.97 23.42 11.95 204.50 0.4388 -1860.7 -683.4
3 -2 -2 -2 -2 -29.23 22.60 11.13 202.76 0.4374 999999 999999
4 0 3 0 2 -29.43 20.84 9.37 199.32 0.4303 -378.0 -365.2
5 0 10 0 5 -30.15 20.14 8.67 197.41 0.4375 1009.0 744.8
6 0 7 0 4 -29.61 20.01 8.53 197.59 0.4288 821.0 791.6
7 0 5 0 3 -29.87 19.00 7.53 195.46 0.4283 858.0 697.7
8 0 10 0 5 -30.17 18.80 7.33 194.86 0.4319 673.0 507.6
9 0 5 0 3 -30.56 17.58 6.11 192.25 0.4334 765.0 658.9
10 0 7 0 4 -30.19 17.15 5.68 191.63 0.4262 936.0 791.6
11 0 8 0 5 -30.61 17.09 5.62 191.28 0.4325 931.0 856.6
12 0 8 0 5 -30.15 16.84 5.37 191.03 0.4246 871.0 701.3
13 0 4 0 2 -30.83 16.79 5.31 190.58 0.4349 935.0 771.7
14 0 4 0 2 -30.87 16.25 4.78 189.52 0.4342 829.0 795.5
15 0 6 0 3 -30.66 15.71 4.23 188.54 0.4296 1027.0 783.8
16 0 7 0 4 -30.96 15.09 3.62 187.21 0.4330 1165.0 845.5
17 0 9 0 5 -30.97 14.64 3.17 186.33 0.4322 1266.0 965.8
18 0 4 0 2 -31.10 14.20 2.73 185.42 0.4335 967.0 902.7


  • 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.