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

8788 154 1173 124 978 10.25 308.51 -52.72 77.35 0.7993


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SOHO MDI 1999-12-05 04:52:33 UT

No observation available


spotProj. UProj. WSCorr. UCorr. WSBLLCMPos. angler

1 0 3 0 3 13.80 300.38 -60.85 74.47 0.8823
2 24 627 17 455 10.05 315.35 -45.88 76.44 0.7295
3 11 -2 8 -2 9.87 314.80 -46.42 76.80 0.7355
4 4 34 3 26 10.36 311.75 -49.48 76.75 0.7706
5 17 -2 12 -2 9.45 315.37 -45.86 77.25 0.7282
6 21 -2 15 -2 9.57 314.08 -47.15 77.35 0.7433
7 5 -4 4 -4 9.99 311.99 -49.24 77.19 0.7673
8 0 3 0 3 10.61 308.86 -52.37 76.94 0.8014
9 26 -2 19 -2 9.09 315.05 -46.18 77.80 0.7312
10 0 5 0 4 9.98 310.82 -50.40 77.40 0.7800
11 7 414 7 411 11.48 302.45 -58.78 76.83 0.8628
12 0 12 0 10 10.29 307.20 -54.03 77.59 0.8176
13 0 4 0 3 9.95 308.80 -52.42 77.77 0.8010
14 3 10 2 8 9.09 312.09 -49.14 78.33 0.7649
15 0 3 0 4 11.51 299.58 -61.64 77.15 0.8865
16 18 -11 19 -11 11.19 301.25 -59.97 77.32 0.8726
17 12 -11 12 -11 11.04 302.10 -59.12 77.39 0.8653
18 0 4 0 3 9.08 310.60 -50.63 78.59 0.7811
19 0 5 0 4 9.78 306.99 -54.24 78.24 0.8191
20 0 3 0 4 11.21 299.01 -62.22 77.54 0.8907
21 0 4 0 3 8.78 310.87 -50.36 78.93 0.7778
22 6 -11 6 -11 10.63 301.52 -59.71 77.93 0.8699
23 0 10 0 7 8.35 312.04 -49.19 79.31 0.7644
24 0 6 0 4 7.73 314.45 -46.78 79.75 0.7362
25 0 14 0 14 9.51 301.17 -60.05 79.25 0.8719
26 0 12 0 12 9.47 300.05 -61.18 79.40 0.8812


  • 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