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

8513 44 260 22 144 -18.17 233.12 -20.65 123.26 0.4015 -228.8 78.4


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SOHO MDI 1999-04-12 01:35:33 UT

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

1 0 1 0 1 -18.37 239.06 -14.71 132.25 0.3271 -477.0 -415.3
2 0 8 0 4 -16.21 237.39 -16.39 124.02 0.3284 -1010.0 -908.7
3 2 12 1 6 -16.53 237.23 -16.54 124.60 0.3331 -1132.8 -726.5
4 16 79 8 42 -17.32 235.92 -17.86 124.69 0.3576 -1684.0 -1024.9
5 4 -4 2 -4 -16.91 235.53 -18.25 123.18 0.3594 -1325.5 999999
6 0 4 0 2 -18.14 235.23 -18.55 125.66 0.3737 -862.0 -653.2
7 4 11 2 6 -17.08 234.48 -19.30 122.24 0.3751 -1073.1 -720.4
8 0 10 0 6 -17.55 233.12 -20.65 121.75 0.3972 -707.0 -763.7
9 0 10 0 6 -18.67 232.01 -21.76 122.97 0.4205 948.0 691.0
10 0 3 0 2 -18.62 231.75 -22.02 122.59 0.4236 907.0 759.1
11 0 5 0 3 -20.01 231.42 -22.36 125.08 0.4386 782.0 710.8
12 0 12 0 7 -17.38 231.70 -22.08 119.87 0.4155 1393.0 1099.3
13 2 13 1 7 -20.36 230.87 -22.91 125.17 0.4483 936.2 900.2
14 4 68 2 38 -19.55 230.77 -23.01 123.47 0.4434 1311.4 934.5
15 6 14 3 8 -18.26 230.82 -22.95 120.91 0.4335 1113.3 932.9
16 3 -14 1 -14 -18.90 230.60 -23.18 121.99 0.4409 1276.3 999999
17 3 -14 2 -14 -19.25 230.28 -23.50 122.38 0.4477 741.4 999999
18 0 6 0 4 -18.41 230.40 -23.38 120.80 0.4401 727.0 534.8
19 0 4 0 2 -19.64 229.99 -23.79 122.88 0.4542 721.0 562.4


  • 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.