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

9330 52 424 40 334 24.84 114.97 -41.77 50.94 0.7788 837.7 166.0


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

SOHO MDI 2001-02-01 22:23:32 UT

No observation available


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

1 0 2 0 2 26.42 118.11 -38.64 47.29 0.7634 -259.0 -335.8
2 0 9 0 7 26.07 117.91 -38.83 47.79 0.7627 -632.0 -469.8
3 34 217 25 162 23.75 117.48 -39.26 50.63 0.7517 1356.4 564.0
4 8 50 7 39 25.29 116.28 -40.46 49.70 0.7716 796.4 179.3
5 0 8 0 6 24.38 116.03 -40.71 50.86 0.7682 321.0 363.6
6 0 3 0 2 24.41 114.56 -42.19 51.75 0.7810 461.0 335.0
7 0 4 0 3 23.96 114.63 -42.12 52.20 0.7779 462.0 442.2
8 0 4 0 3 26.36 113.47 -43.28 50.28 0.8009 319.0 266.5
9 0 3 0 2 23.71 114.44 -42.30 52.59 0.7782 333.0 417.1
10 0 5 0 4 30.10 111.24 -45.51 47.64 0.8373 -235.0 -206.3
11 0 9 0 8 27.33 110.79 -45.95 50.75 0.8268 272.0 70.2
12 10 62 8 52 24.44 111.86 -44.88 53.26 0.8039 -439.3 -436.7
13 0 26 0 23 27.11 109.65 -47.09 51.58 0.8343 -794.0 -638.2
14 0 5 0 5 28.99 108.41 -48.33 50.25 0.8519 -633.0 -519.3
15 0 1 0 1 24.88 110.19 -46.55 53.68 0.8197 -644.0 -597.7
16 0 16 0 15 28.72 107.32 -49.43 51.08 0.8584 -402.0 -261.8


  • 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.