Gyula 1978-08-19 13:21:01 UT
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 20 | 110 | 25 | 140 | 20.37 | 124.18 | 68.15 | 289.29 | 0.9228 | |
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| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 17 | 96 | 22 | 126 | 20.14 | 124.92 | 68.89 | 289.00 | 0.9279 | |
| 0 | 2 | 0 | 2 | 21.68 | 119.72 | 63.70 | 290.87 | 0.8934 | |
| 0 | 1 | 0 | 1 | 21.49 | 118.54 | 62.51 | 290.74 | 0.8845 | |
| 0 | 1 | 0 | 1 | 21.76 | 118.01 | 61.99 | 291.08 | 0.8807 | |
| 0 | 2 | 0 | 2 | 21.86 | 117.38 | 61.35 | 291.25 | 0.8759 | |
| 3 | 8 | 3 | 8 | 22.94 | 116.85 | 60.82 | 292.53 | 0.8724 | |
| 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 | |