group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
16 | 159 | 8 | 85 | -13.31 | 25.91 | -2.63 | 172.75 | 0.3494 | -1654.1 | -677.0 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 5 | 0 | 3 | -11.66 | 28.99 | 0.45 | 181.38 | 0.3184 | -960.0 | -847.9 | |
16 | 139 | 8 | 73 | -13.31 | 26.27 | -2.27 | 173.61 | 0.3478 | -1809.4 | -767.4 | |
0 | 5 | 0 | 3 | -13.16 | 24.39 | -4.15 | 168.34 | 0.3501 | -554.0 | -494.6 | |
0 | 5 | 0 | 3 | -13.58 | 23.34 | -5.20 | 165.80 | 0.3607 | 528.0 | 334.5 | |
0 | 5 | 0 | 3 | -14.76 | 18.15 | -10.39 | 154.51 | 0.4071 | 581.0 | 500.6 |
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. |