| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 34 | 238 | 55 | 424 | 13.12 | 92.55 | -74.96 | 78.31 | 0.9593 | |
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next day for the same group /
back to the solar disc Gyula 2000-09-17 13:21:52 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 21 | 145 | 30 | 213 | 14.47 | 96.33 | -71.18 | 77.16 | 0.9415 | |
| 5 | -1 | 7 | -1 | 14.62 | 95.39 | -72.12 | 76.96 | 0.9467 | |
| 3 | 37 | 6 | 77 | 9.35 | 90.60 | -76.91 | 82.10 | 0.9714 | |
| 0 | 2 | 0 | 2 | 15.19 | 94.58 | -72.93 | 76.31 | 0.9509 | |
| 1 | 11 | 3 | 20 | 13.01 | 92.14 | -75.37 | 78.45 | 0.9635 | |
| 0 | 7 | 0 | 14 | 13.36 | 91.11 | -76.40 | 78.01 | 0.9679 | |
| 2 | 11 | 4 | 24 | 14.46 | 88.63 | -78.88 | 76.70 | 0.9773 | |
| 2 | 25 | 5 | 74 | 12.59 | 85.79 | -81.72 | 78.37 | 0.9868 | |
| 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 | |