SOHO MDI 2000-01-31 11:58:32 UT
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 34 | 190 | 31 | 166 | -30.46 | 20.19 | 53.72 | 236.91 | 0.8309 | |
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| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r |
| 16 | 55 | 15 | 51 | -29.13 | 22.52 | 56.05 | 239.08 | 0.8468 | |
| 0 | 3 | 0 | 2 | -30.32 | 23.30 | 56.83 | 237.89 | 0.8552 | |
| 0 | 1 | 0 | 1 | -29.26 | 21.53 | 55.05 | 238.71 | 0.8390 | |
| 0 | 5 | 0 | 4 | -29.60 | 20.43 | 53.95 | 238.04 | 0.8309 | |
| 18 | 107 | 16 | 94 | -30.97 | 20.02 | 53.54 | 236.33 | 0.8309 | |
| -5 | -5 | -5 | -5 | -31.26 | 19.72 | 53.25 | 235.91 | 0.8292 | |
| 0 | 3 | 0 | 2 | -31.68 | 16.55 | 50.07 | 234.47 | 0.8043 | |
| 0 | 16 | 0 | 12 | -31.22 | 12.71 | 46.24 | 233.65 | 0.7693 | |
| 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 | |