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

8788 161 1050 111 717 9.84 312.04 42.09 285.55 0.6827 135.0 62.6


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SOHO MDI 1999-12-12 03:11:33 UT

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

1 98 594 73 441 9.51 317.24 47.29 283.32 0.7472 946.6 434.5
2 0 2 0 2 10.04 315.36 45.41 284.46 0.7266 690.0 634.5
3 0 2 0 1 9.26 315.01 45.06 283.49 0.7208 571.0 560.5
4 2 9 1 6 9.65 315.02 45.07 284.02 0.7217 895.0 845.1
5 0 5 0 3 5.77 314.22 44.27 278.79 0.7052 525.0 375.9
6 0 19 0 13 9.64 314.58 44.63 284.12 0.7165 834.0 705.0
7 0 4 0 3 11.08 313.85 43.90 286.29 0.7114 544.0 368.6
8 0 4 0 2 12.54 304.34 34.39 292.19 0.5977 491.0 316.0
9 0 5 0 3 8.17 303.10 33.15 285.50 0.5639 -626.0 -573.4
10 30 377 18 226 10.23 303.09 33.14 289.02 0.5713 -1426.2 -649.8
11 8 -10 5 -10 10.34 302.27 32.32 289.62 0.5605 -1467.1 999999
12 23 -10 14 -10 11.12 302.04 32.09 291.07 0.5608 -1536.1 999999
13 0 16 0 10 9.48 301.80 31.85 288.36 0.5507 -1227.0 -978.7
14 0 13 0 7 8.54 299.64 29.69 287.74 0.5164 -1078.0 -877.5


  • 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.