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

8788 159 1067 110 740 9.85 312.00 42.93 285.30 0.6929 71.4 58.1


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SOHO MDI 1999-12-12 04:47:33 UT

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

1 97 588 73 444 9.51 317.23 48.16 283.14 0.7569 820.1 413.5
2 0 8 0 6 10.19 315.30 46.22 284.48 0.7364 602.0 486.8
3 0 18 0 13 9.65 315.03 45.96 283.81 0.7321 968.0 808.0
4 0 5 0 3 9.10 314.71 45.64 283.14 0.7273 824.0 739.9
5 0 4 0 3 5.81 314.27 45.20 278.70 0.7165 351.0 360.7
6 0 10 0 7 9.41 314.54 45.47 283.60 0.7260 778.0 666.6
7 0 3 0 2 10.69 313.88 44.81 285.51 0.7211 662.0 544.6
8 0 6 0 4 9.47 312.48 43.41 284.20 0.7016 380.0 212.5
9 0 7 0 5 14.30 313.30 44.23 290.57 0.7243 362.0 214.7
10 0 5 0 3 8.13 303.19 34.12 285.06 0.5773 -650.0 -489.3
11 27 376 16 228 10.23 303.09 34.02 288.61 0.5833 -1428.1 -655.2
12 8 -11 5 -11 10.38 302.27 33.20 289.25 0.5727 -1501.3 999999
13 24 -11 14 -11 11.08 302.08 33.01 290.52 0.5731 -1525.0 999999
14 3 17 2 10 9.44 301.84 32.77 287.87 0.5632 -1156.3 -848.9
15 0 3 0 2 9.40 301.14 32.07 288.12 0.5534 304.0 176.9
16 0 10 0 6 8.54 299.65 30.58 287.30 0.5291 -1012.0 -904.6
17 0 7 0 4 8.77 299.36 30.29 287.87 0.5259 -702.0 -708.6


  • 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.