| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 30 | 142 | 17 | 91 | -5.67 | 80.20 | -37.06 | 108.10 | 0.6331 | |
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next day for the same group /
back to the solar disc Gyula 2000-09-21 08:42:56 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 7 | 33 | 4 | 21 | -6.03 | 82.15 | -35.12 | 109.65 | 0.6098 | |
| 1 | -1 | 0 | -1 | -6.05 | 81.94 | -35.33 | 109.57 | 0.6126 | |
| 0 | 4 | 0 | 2 | -5.51 | 81.81 | -35.47 | 108.66 | 0.6118 | |
| 1 | -1 | 1 | -1 | -5.84 | 81.27 | -36.00 | 108.88 | 0.6203 | |
| 2 | 44 | 1 | 28 | -6.50 | 80.82 | -36.45 | 109.64 | 0.6290 | |
| 5 | -5 | 3 | -5 | -6.49 | 80.51 | -36.77 | 109.46 | 0.6331 | |
| -6 | -5 | -6 | -5 | -6.45 | 80.45 | -36.79 | 109.38 | 0.6331 | |
| -6 | -5 | -6 | -5 | -6.41 | 80.18 | -37.07 | 109.18 | 0.6365 | |
| 0 | 0 | 0 | 0 | -6.00 | 78.80 | -38.44 | 107.89 | 0.6519 | |
| 1 | 28 | 0 | 18 | -4.52 | 79.67 | -37.57 | 106.10 | 0.6350 | |
| 0 | 1 | 0 | 1 | -5.82 | 78.67 | -38.57 | 107.56 | 0.6529 | |
| 2 | -10 | 1 | -10 | -4.77 | 79.29 | -37.96 | 106.30 | 0.6409 | |
| 11 | 32 | 7 | 21 | -5.11 | 78.66 | -38.59 | 106.52 | 0.6503 | |
| 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. |
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| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
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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. |
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| 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 | |