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

9213 53 395 54 402 2.51 270.92 -60.99 89.65 0.8754 786.2 232.0


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

SOHO MDI 2000-10-29 15:59:32 UT

No observation available


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

1 20 380 20 383 2.26 272.02 -59.89 90.02 0.8664 1158.4 248.6
2 9 -1 9 -1 2.69 271.04 -60.86 89.44 0.8746 797.3 999999
3 4 -1 4 -1 2.19 271.08 -60.83 90.02 0.8745 650.0 999999
4 5 -1 5 -1 2.36 270.67 -61.24 89.80 0.8779 497.7 999999
5 15 -1 16 -1 2.92 270.46 -61.45 89.14 0.8793 473.7 999999
6 0 3 0 4 0.50 270.59 -61.32 91.91 0.8797 -238.0 -182.3
7 0 7 0 9 3.51 264.51 -67.40 88.09 0.9237 -191.0 -175.6
8 0 5 0 6 0.71 262.87 -69.03 90.97 0.9354 15.0 61.1


  • 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.