Gyula 2000-04-04 09:26:37 UT
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 30 | 177 | 20 | 118 | 8.02 | 165.46 | -39.06 | 70.30 | 0.6650 | |
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| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 0 | 2 | 0 | 1 | 12.37 | 163.83 | -40.70 | 65.18 | 0.7041 | |
| 0 | 2 | 0 | 2 | 12.17 | 162.59 | -41.92 | 66.08 | 0.7168 | |
| 30 | 166 | 20 | 109 | 7.88 | 165.79 | -38.73 | 70.34 | 0.6605 | |
| 0 | 1 | 0 | 1 | 8.65 | 165.18 | -39.35 | 69.55 | 0.6713 | |
| 0 | 5 | 0 | 4 | 8.63 | 159.92 | -44.60 | 71.91 | 0.7327 | |
| 0 | 1 | 0 | 1 | 7.06 | 158.99 | -45.53 | 74.32 | 0.7379 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
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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 | |