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

8844 111 708 81 503 4.94 71.92 44.41 282.63 0.7160 -73.7 -108.0


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SOHO MDI 2000-01-26 20:47:32 UT

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

1 8 243 6 184 3.85 76.11 48.60 279.91 0.7621 649.7 368.6
2 18 -1 13 -1 3.52 75.80 48.29 279.55 0.7579 1293.6 999999
3 9 -1 7 -1 4.48 75.76 48.25 280.82 0.7595 807.9 999999
4 7 -1 6 -1 4.16 75.56 48.04 280.44 0.7566 1315.4 999999
5 3 44 2 32 4.50 74.33 46.82 281.21 0.7434 860.4 595.9
6 6 -5 5 -5 4.71 73.56 46.05 281.71 0.7352 970.3 999999
7 7 19 5 14 3.59 73.04 45.52 280.35 0.7263 942.2 713.6
8 0 3 0 2 3.26 72.20 44.69 280.12 0.7156 418.0 340.8
9 0 9 0 7 5.09 72.28 44.76 282.60 0.7211 801.0 704.5
10 0 3 0 2 5.11 71.47 43.96 282.88 0.7116 551.0 520.5
11 0 5 0 3 3.94 70.26 42.75 281.63 0.6938 -532.0 -414.5
12 0 5 0 4 7.09 70.18 42.67 286.06 0.7023 -137.0 -239.9
13 6 223 4 151 4.26 69.82 42.30 282.22 0.6892 -911.9 -607.6
14 0 4 0 3 7.18 69.67 42.15 286.37 0.6964 -325.0 -325.1
15 17 -13 12 -13 5.10 68.94 41.43 283.71 0.6808 -1537.0 999999
16 5 -13 4 -13 5.69 68.99 41.48 284.53 0.6833 -1190.0 999999
17 0 4 0 3 10.21 69.56 42.05 290.55 0.7064 -26.0 -153.4
18 25 146 17 98 6.74 68.43 40.92 286.25 0.6799 -1465.6 -637.3


  • 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.