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

8076 131 874 73 488 27.67 109.72 19.35 320.93 0.4697 469.1 242.8


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SOHO MDI 1997-09-01 02:58:03 UT

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

1 57 500 32 284 26.15 114.23 23.85 312.60 0.4951 1605.5 515.6
2 -1 -1 -1 -1 26.14 113.61 23.23 313.25 0.4881 999999 999999
3 13 -1 7 -1 26.55 111.94 21.56 315.84 0.4738 1077.9 999999
4 0 4 0 2 27.84 112.06 21.68 317.75 0.4879 -368.0 -263.4
5 0 9 0 5 26.64 110.83 20.45 317.36 0.4630 504.0 517.7
6 0 10 0 6 25.99 110.29 19.91 316.99 0.4507 820.0 612.4
7 0 4 0 2 27.70 109.29 18.91 321.09 0.4589 685.0 596.0
8 0 3 0 2 27.51 108.93 18.55 321.29 0.4532 565.0 532.1
9 0 5 0 3 29.15 108.99 18.62 323.65 0.4723 278.0 314.4
10 0 5 0 3 28.31 108.70 18.32 322.85 0.4601 680.0 636.4
11 0 13 0 7 29.01 108.07 17.69 324.75 0.4625 892.0 724.6
12 0 18 0 10 29.19 107.73 17.35 325.51 0.4616 772.0 771.2
13 0 6 0 3 26.74 106.87 16.49 323.17 0.4246 -509.0 -442.4
14 8 23 5 12 28.11 106.15 15.77 326.36 0.4347 -708.8 -348.8
15 0 15 0 8 29.35 105.69 15.31 328.81 0.4463 565.0 471.9
16 8 146 4 80 29.17 104.55 14.17 330.43 0.4350 -914.8 -143.2
17 18 -16 10 -16 29.48 104.13 13.75 331.53 0.4359 -232.6 999999
18 11 -16 6 -16 30.05 103.42 13.04 333.43 0.4384 -822.7 999999
19 0 3 0 2 29.50 103.21 12.83 333.14 0.4295 -310.0 -393.3
20 0 23 0 12 29.12 103.11 12.73 332.85 0.4237 -778.0 -679.8
21 13 31 7 17 30.12 102.17 11.80 335.68 0.4311 -997.9 -663.9
22 0 12 0 6 31.32 100.45 10.08 339.96 0.4379 -647.0 -499.6
23 0 9 0 5 33.62 100.38 10.01 342.03 0.4708 -926.0 -731.4
24 3 10 2 5 33.98 100.09 9.71 342.78 0.4745 -779.5 -558.8
25 0 12 0 7 33.25 99.25 8.87 343.66 0.4602 -756.0 -619.2
26 0 6 0 3 33.43 98.89 8.51 344.41 0.4613 -654.0 -570.7
27 0 7 0 4 33.62 98.19 7.81 345.74 0.4613 -719.0 -658.5


  • 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.