group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15 | 162 | 18 | 230 | -21.83 | 116.95 | 68.54 | 247.07 | 0.9341 | 665.7 | 246.4 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 20 | 0 | 54 | -19.36 | 128.00 | 79.60 | 250.61 | 0.9846 | 41.0 | 41.0 | |
0 | 4 | 0 | 7 | -18.68 | 120.60 | 72.19 | 250.92 | 0.9557 | -316.0 | -239.2 | |
0 | 1 | 0 | 2 | -19.57 | 119.92 | 71.52 | 249.93 | 0.9527 | -181.0 | -181.0 | |
0 | 13 | 0 | 16 | -21.69 | 114.15 | 65.74 | 247.05 | 0.9216 | 304.0 | 373.1 | |
15 | 124 | 18 | 151 | -22.90 | 113.08 | 64.67 | 245.59 | 0.9161 | 822.1 | 346.5 |
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. |