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

8831 154 1021 78 522 -18.32 130.46 -4.69 163.90 0.2529


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SOHO MDI 2000-01-18 16:43:32 UT

No observation available


spotProj. UProj. WSCorr. UCorr. WSBLLCMPos. angler

1 35 202 18 102 -16.62 135.11 -0.03 179.85 0.2049
2 0 6 0 3 -18.77 134.63 -0.52 177.97 0.2420
3 0 5 0 2 -17.28 134.39 -0.75 176.66 0.2167
4 0 7 0 3 -18.22 134.34 -0.80 176.73 0.2328
5 0 5 0 3 -16.65 134.15 -0.99 175.37 0.2063
6 0 8 0 4 -18.14 134.02 -1.12 175.39 0.2319
7 11 301 6 153 -17.75 133.54 -1.60 173.21 0.2260
8 9 -7 4 -7 -16.65 133.35 -1.79 171.68 0.2078
9 9 -7 5 -7 -17.91 133.22 -1.92 171.96 0.2293
10 13 -7 7 -7 -17.32 133.07 -2.08 170.90 0.2198
11 8 -7 4 -7 -17.59 132.90 -2.24 170.42 0.2249
12 6 -7 3 -7 -18.06 132.90 -2.25 170.75 0.2328
13 0 4 0 2 -18.53 132.08 -3.06 167.93 0.2432
14 3 41 1 21 -16.49 132.12 -3.03 165.93 0.2092
15 9 31 4 15 -16.60 130.51 -4.63 159.24 0.2192
16 0 5 0 3 -19.38 129.50 -5.64 159.76 0.2692
17 0 5 0 3 -20.73 128.92 -6.22 159.71 0.2936
18 2 10 1 5 -16.78 128.74 -6.40 152.77 0.2343
19 0 9 0 4 -16.43 128.76 -6.39 152.08 0.2289
20 0 8 0 4 -20.20 128.28 -6.86 157.11 0.2895
21 0 5 0 3 -22.51 127.55 -7.59 158.13 0.3293
22 0 5 0 3 -19.40 126.81 -8.34 151.52 0.2881
23 10 312 5 162 -20.26 126.31 -8.84 151.62 0.3046
24 0 6 0 3 -18.95 125.85 -9.30 148.02 0.2898
25 27 -23 14 -23 -20.25 125.65 -9.50 149.88 0.3099
26 0 5 0 3 -19.22 125.26 -9.89 146.97 0.2989
27 12 -23 6 -23 -20.01 125.16 -9.98 148.22 0.3105
28 0 3 0 2 -26.13 124.35 -10.80 155.22 0.4031
29 0 13 0 7 -19.41 124.79 -10.35 146.16 0.3057
30 0 5 0 2 -17.91 124.76 -10.38 142.98 0.2861
31 0 9 0 5 -20.79 124.41 -10.74 147.76 0.3280
32 0 8 0 4 -17.22 123.25 -11.89 137.66 0.2936
33 0 3 0 1 -27.37 119.66 -15.48 148.43 0.4547


  • 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