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

9213 85 573 45 306 2.29 271.54 21.34 266.16 0.3657 1631.4 637.3


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SOHO MDI 2000-11-04 20:47:32 UT

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

1 43 464 23 248 2.05 273.12 22.91 266.06 0.3917 1690.4 732.2
2 8 -1 4 -1 2.18 272.41 22.21 266.25 0.3801 1598.6 999999
3 0 20 0 11 3.92 272.33 22.12 270.83 0.3773 1121.0 789.0
4 24 -1 13 -1 2.76 272.22 22.01 267.75 0.3762 1873.1 999999
5 10 -1 5 -1 2.00 271.99 21.79 265.66 0.3736 1402.3 999999
6 0 9 0 5 1.43 271.66 21.45 264.03 0.3692 1159.0 822.2
7 0 9 0 5 4.35 271.67 21.47 272.01 0.3667 491.0 452.6
8 0 3 0 2 0.13 271.11 20.91 260.29 0.3636 620.0 478.7
9 0 4 0 2 0.94 269.76 19.55 261.90 0.3396 760.0 577.7
10 0 5 0 2 2.48 265.86 15.65 265.31 0.2717 864.0 821.7
11 0 3 0 2 1.08 264.45 14.25 259.20 0.2516 608.0 529.1
12 0 5 0 3 0.32 263.62 13.41 255.41 0.2408 772.0 635.2
13 0 3 0 2 2.26 263.04 12.83 263.11 0.2245 -659.0 -739.8
14 0 4 0 2 4.57 262.87 12.66 273.53 0.2199 -669.0 -551.1
15 0 7 0 3 1.11 262.71 12.51 257.77 0.2225 348.0 356.9
16 0 10 0 5 0.77 262.36 12.15 255.87 0.2180 698.0 591.7
17 0 27 0 14 2.65 262.33 12.12 264.53 0.2117 -1005.0 -700.0


  • 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.