group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
44 | 124 | 22 | 61 | -2.00 | 259.79 | -1.29 | 16.91 | 0.0780 | -299.2 | 23.5 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
25 | 59 | 13 | 29 | -1.67 | 261.28 | 0.20 | 357.53 | 0.0809 | -1504.8 | -835.7 | |
0 | 5 | 0 | 2 | -1.98 | 260.23 | -0.85 | 11.20 | 0.0768 | -407.0 | -399.9 | |
3 | 60 | 1 | 30 | -2.21 | 258.91 | -2.17 | 28.13 | 0.0808 | 1137.0 | 882.3 | |
16 | -3 | 8 | -3 | -2.33 | 258.25 | -2.84 | 35.67 | 0.0852 | 1483.2 | 999999 |
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. |