group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 23 | 0 | 17 | -19.74 | 345.00 | -42.67 | 123.22 | 0.7647 | -7.8 | 77.3 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 7 | 0 | 5 | -20.29 | 346.50 | -41.16 | 124.74 | 0.7536 | -564.0 | -390.4 | |
0 | 4 | 0 | 3 | -19.81 | 345.49 | -42.17 | 123.58 | 0.7605 | -559.0 | -407.9 | |
0 | 8 | 0 | 6 | -19.45 | 344.25 | -43.41 | 122.44 | 0.7701 | 780.0 | 587.5 | |
0 | 4 | 0 | 3 | -19.34 | 343.49 | -44.18 | 121.89 | 0.7768 | 312.0 | 321.8 |
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 | |
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 | |
MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. |