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

9330 37 409 21 246 24.56 114.52 -14.12 23.25 0.5572 1355.1 295.8


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SOHO MDI 2001-02-04 01:35:32 UT

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

1 0 3 0 2 18.28 117.98 -10.66 23.05 0.4504 716.0 565.3
2 35 206 20 120 23.47 117.25 -11.38 20.16 0.5274 1644.9 570.2
3 2 15 1 9 24.76 115.67 -12.97 21.71 0.5532 842.2 697.1
4 0 4 0 3 24.13 115.73 -12.90 22.07 0.5444 588.0 500.0
5 0 10 0 6 22.94 115.72 -12.91 23.02 0.5285 849.0 673.1
6 0 14 0 8 23.43 115.33 -13.30 23.24 0.5374 1120.0 795.5
7 0 5 0 3 23.18 114.84 -13.79 24.20 0.5369 603.0 420.5
8 0 8 0 5 23.46 114.51 -14.12 24.48 0.5425 1001.0 710.9
9 0 8 0 5 25.17 113.61 -15.02 24.40 0.5702 563.0 485.6
10 0 18 0 10 22.70 113.43 -15.20 26.76 0.5395 657.0 620.2
11 0 4 0 3 25.02 112.71 -15.93 25.79 0.5738 535.0 451.5
12 0 3 0 2 23.98 111.84 -16.80 27.91 0.5664 378.0 323.0
13 0 19 0 12 25.16 111.41 -17.23 27.46 0.5837 314.0 484.7
14 0 12 0 8 28.85 110.58 -18.06 25.48 0.6334 -748.0 -515.3
15 0 3 0 2 25.08 110.93 -17.71 28.16 0.5860 -23.0 -143.4
16 0 3 0 2 25.45 110.60 -18.03 28.26 0.5926 237.0 167.1
17 0 34 0 21 27.77 109.76 -18.87 27.34 0.6255 -768.0 -830.1
18 0 12 0 7 28.11 109.19 -19.44 27.74 0.6331 -731.0 -647.0
19 0 4 0 3 27.57 108.97 -19.66 28.46 0.6282 -759.0 -590.7
20 0 4 0 3 25.64 109.27 -19.36 29.80 0.6039 -749.0 -583.8
21 0 10 0 6 28.40 107.69 -20.94 29.24 0.6460 -400.0 -512.7
22 0 6 0 4 26.98 107.47 -21.16 30.75 0.6316 -620.0 -596.8
23 0 4 0 2 27.28 106.95 -21.69 31.08 0.6386 -726.0 -597.7


  • 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.