group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
37 | 278 | 52 | 396 | 2.64 | 270.97 | -69.72 | 88.89 | 0.9387 | 572.2 | 82.4 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
16 | 273 | 22 | 388 | 2.37 | 271.68 | -69.01 | 89.23 | 0.9345 | 809.9 | 89.7 | |
21 | -1 | 30 | -1 | 2.90 | 270.49 | -70.20 | 88.58 | 0.9415 | 409.5 | 999999 | |
0 | 3 | 0 | 5 | 1.13 | 270.20 | -70.49 | 90.43 | 0.9439 | -176.0 | -188.0 | |
0 | 2 | 0 | 3 | 0.90 | 269.62 | -71.07 | 90.63 | 0.9473 | -409.0 | -409.3 |
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. |