| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 15 | 119 | 61 | 378 | 9.14 | 304.43 | 80.39 | 279.75 | 0.9866 | |
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previous
day for the same group /
back to the solar disc Gyula 2000-12-31 11:43:40 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 2 | 53 | 10 | 236 | 9.45 | 306.74 | 82.69 | 279.88 | 0.9937 | |
| 9 | -1 | 41 | -1 | 9.96 | 307.11 | 83.07 | 280.37 | 0.9945 | |
| 0 | 2 | 0 | 3 | 6.10 | 300.24 | 76.20 | 277.00 | 0.9739 | |
| 3 | 42 | 8 | 98 | 8.19 | 301.04 | 77.00 | 279.06 | 0.9776 | |
| 0 | 5 | 0 | 11 | 6.79 | 299.17 | 75.13 | 277.79 | 0.9698 | |
| 1 | 17 | 2 | 30 | 7.69 | 297.32 | 73.29 | 278.89 | 0.9620 | |
| 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 | |