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

8788 140 964 152 1059 10.38 308.31 -62.73 78.52 0.8890 178.2 31.5


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SOHO MDI 1999-12-04 10:59:33 UT

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

1 0 5 0 7 13.62 299.78 -71.26 75.79 0.9508 -49.0 56.5
2 17 518 15 471 10.05 314.88 -56.16 78.23 0.8376 1225.6 341.3
3 3 88 3 91 10.64 310.60 -60.44 78.05 0.8759 13.9 -183.5
4 7 -2 6 -2 9.93 314.30 -56.74 78.45 0.8429 656.2 999999
5 10 -3 10 -3 10.79 309.46 -61.59 78.00 0.8853 -574.8 999999
6 0 9 0 10 10.88 307.68 -63.36 78.08 0.8990 -390.0 -264.2
7 12 -2 11 -2 9.84 313.33 -57.71 78.67 0.8516 519.5 999999
8 8 313 11 440 11.52 302.42 -68.62 77.81 0.9350 -637.7 -269.7
9 5 -3 5 -3 10.15 311.14 -59.90 78.55 0.8710 439.5 999999
10 38 -2 34 -2 9.40 314.60 -56.44 79.04 0.8396 1181.1 999999
11 10 -8 14 -8 11.12 302.21 -68.83 78.26 0.9362 -781.3 999999
12 0 6 0 7 10.01 309.88 -61.16 78.83 0.8813 10.0 3.7
13 0 5 0 4 9.48 312.06 -58.98 79.23 0.8626 364.0 344.9
14 18 -8 27 -8 11.07 301.34 -69.70 78.37 0.9412 -217.9 999999
15 0 2 0 2 10.31 306.74 -64.30 78.78 0.9056 152.0 111.2
16 4 -8 5 -8 10.72 303.24 -67.80 78.62 0.9297 -699.2 999999
17 0 4 0 5 10.53 304.65 -66.40 78.71 0.9204 -203.0 -205.6
18 8 -8 11 -8 10.64 302.29 -68.76 78.76 0.9355 -841.1 999999
19 0 14 0 22 9.95 299.38 -71.66 79.66 0.9518 353.0 252.2


  • 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.