group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
1.61 | 5.47 | 0.88 | 2.99 | 17.13 | 224.39 | 14.90 | 324.64 | 0.4275 | 315.5 | 278.2 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 1.07 | 0.00 | 0.59 | 15.28 | 227.58 | 18.09 | 316.42 | 0.4363 | -838.0 | -592.8 | |
0.00 | 0.99 | 0.00 | 0.54 | 16.26 | 224.97 | 15.48 | 322.31 | 0.4208 | 697.0 | 580.7 | |
1.61 | 2.60 | 0.88 | 1.42 | 17.68 | 223.22 | 13.73 | 327.54 | 0.4230 | 820.6 | 709.1 | |
0.00 | 0.81 | 0.00 | 0.44 | 18.88 | 223.18 | 13.69 | 329.15 | 0.4386 | 643.0 | 549.3 |
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. |