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

8076 96 518 65 367 27.83 109.73 42.49 302.95 0.7114 230.6 169.9


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SOHO MDI 1997-09-02 20:59:03 UT

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

1 31 244 24 184 26.39 114.98 47.75 298.81 0.7591 797.3 365.7
2 10 -1 7 -1 26.57 113.86 46.62 299.39 0.7483 928.7 999999
3 1 -1 0 -1 26.51 113.06 45.82 299.56 0.7401 905.0 999999
4 0 8 0 6 26.12 111.20 43.96 299.67 0.7196 517.0 384.1
5 9 20 6 14 27.62 110.46 43.22 301.94 0.7174 565.4 456.1
6 0 8 0 6 26.82 108.30 41.06 301.74 0.6916 380.0 381.2
7 9 30 6 21 28.06 108.75 41.51 303.23 0.7015 509.6 314.6
8 0 6 0 4 28.73 108.89 41.65 304.07 0.7058 -242.0 -120.5
9 0 3 0 2 28.06 107.63 40.39 303.73 0.6898 479.0 403.4
10 0 8 0 5 28.92 105.98 38.74 305.68 0.6767 271.0 248.3
11 0 25 0 17 29.67 106.26 39.03 306.55 0.6834 634.0 669.7
12 0 5 0 3 28.19 104.82 37.58 305.28 0.6608 -118.0 -105.0
13 0 15 0 10 28.90 105.06 37.82 306.13 0.6670 938.0 704.2
14 6 16 4 11 29.16 104.32 37.09 306.90 0.6608 113.5 336.3
15 0 5 0 3 30.42 103.62 36.38 309.02 0.6607 286.0 235.0
16 0 6 0 4 30.63 102.53 35.29 309.96 0.6509 -318.0 -280.1
17 0 5 0 3 28.92 101.68 34.44 308.12 0.6315 -817.0 -776.4
18 1 93 0 60 30.04 101.62 34.38 309.73 0.6379 -511.7 -522.4
19 9 21 6 14 29.38 101.25 34.02 309.04 0.6299 -959.9 -843.0
20 3 -18 2 -18 30.56 101.55 34.32 310.49 0.6406 -564.4 999999
21 16 -18 10 -18 30.54 101.16 33.92 310.73 0.6365 -1004.5 999999
22 1 -18 0 -18 30.33 100.48 33.24 310.89 0.6281 -981.0 999999


  • 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.