group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
39 | 292 | 54 | 398 | 2.59 | 270.92 | -68.89 | 89.00 | 0.9336 | 588.0 | 89.8 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
18 | 280 | 24 | 382 | 2.35 | 271.66 | -68.16 | 89.31 | 0.9291 | 855.0 | 106.9 | |
0 | 4 | 0 | 5 | 1.05 | 270.90 | -68.91 | 90.64 | 0.9345 | -238.0 | -244.0 | |
21 | -1 | 30 | -1 | 2.91 | 270.40 | -69.41 | 88.62 | 0.9368 | 386.8 | 999999 | |
0 | 8 | 0 | 11 | 0.88 | 269.56 | -70.25 | 90.72 | 0.9426 | -455.0 | -353.1 |
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. |