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

8814 92 610 59 383 10.32 315.07 -34.76 67.40 0.6024


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SOHO MDI 2000-01-02 09:35:32 UT

No observation available


spotProj. UProj. WSCorr. UCorr. WSBLLCMPos. angler

1 28 373 16 215 10.67 322.33 -27.50 62.86 0.5121
2 24 -1 14 -1 10.30 321.53 -28.30 64.15 0.5205
3 0 4 0 2 8.20 319.50 -30.33 69.26 0.5367
4 0 3 0 2 10.91 317.81 -32.02 65.73 0.5733
5 0 18 0 11 9.83 311.26 -38.57 70.90 0.6524
6 0 2 0 1 9.55 310.45 -39.38 71.66 0.6615
7 7 18 5 12 9.92 309.84 -39.99 71.37 0.6704
8 0 3 0 2 10.40 309.51 -40.32 70.81 0.6762
9 0 7 0 5 8.93 308.08 -41.75 73.45 0.6886
10 0 6 0 4 8.79 307.69 -42.14 73.79 0.6930
11 0 3 0 2 10.77 307.16 -42.67 71.24 0.7056
12 10 28 7 20 9.44 307.06 -42.77 73.10 0.7024
13 0 6 0 4 10.12 306.74 -43.09 72.29 0.7084
14 0 7 0 5 9.70 306.49 -43.34 72.95 0.7100
15 2 16 1 12 10.65 305.24 -44.59 72.10 0.7274
16 0 4 0 3 9.58 305.43 -44.40 73.47 0.7221
17 5 97 4 71 10.00 304.70 -45.13 73.14 0.7317
18 8 -17 6 -17 10.93 304.08 -45.75 72.12 0.7414
19 8 -17 6 -17 10.22 304.21 -45.62 73.01 0.7378
20 0 2 0 2 10.95 303.45 -46.38 72.30 0.7484
21 0 3 0 3 9.69 303.64 -46.19 73.89 0.7428
22 0 9 0 7 10.17 303.49 -46.34 73.31 0.7458
23 0 1 0 0 9.49 302.88 -46.95 74.38 0.7508


  • 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