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

8841 46 372 32 253 -29.12 24.99 -38.54 127.80 0.6899 -1090.9 -320.3


previous   or   next   observation for the same group / back to the solar disc

SOHO MDI 2000-01-24 03:11:32 UT

No observation available


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

1 40 298 27 200 -28.91 26.51 -37.02 128.32 0.6741 -1362.0 -487.0
2 -1 -1 -1 -1 -28.97 25.99 -37.54 128.09 0.6796 999999 999999
3 0 2 0 1 -28.43 24.60 -38.92 126.61 0.6906 -298.0 -216.5
4 0 6 0 4 -27.48 24.95 -38.57 125.54 0.6821 14.0 115.6
5 0 5 0 3 -27.76 24.67 -38.85 125.76 0.6865 -454.0 -246.2
6 0 7 0 5 -28.09 23.06 -40.47 125.37 0.7046 783.0 586.7
7 0 4 0 3 -30.80 20.68 -42.84 127.70 0.7405 397.0 438.3
8 1 8 1 6 -30.57 20.33 -43.20 127.24 0.7427 735.4 633.0
9 0 4 0 3 -29.69 20.07 -43.45 126.04 0.7412 913.0 678.8
10 0 8 0 6 -30.55 19.41 -44.12 126.82 0.7512 418.0 427.3
11 5 10 4 7 -31.05 19.05 -44.47 127.27 0.7566 -477.8 -246.3
12 0 7 0 5 -29.61 18.70 -44.82 125.35 0.7537 707.0 601.4
13 0 4 0 3 -31.51 16.77 -46.75 126.90 0.7788 222.0 210.0
14 0 6 0 5 -29.96 17.42 -46.10 125.26 0.7669 202.0 299.2
15 0 3 0 2 -29.43 17.17 -46.36 124.51 0.7673 298.0 400.4


  • 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.