group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
7 | 33 | 7 | 33 | -19.56 | 280.48 | 60.83 | 251.12 | 0.8714 | 655.7 | 470.4 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 2 | 0 | 2 | -15.92 | 285.56 | 65.91 | 255.41 | 0.9089 | 104.0 | 86.4 | |
0 | 3 | 0 | 3 | -20.78 | 281.99 | 62.34 | 249.85 | 0.8840 | 413.0 | 328.2 | |
4 | 28 | 4 | 28 | -19.54 | 280.01 | 60.36 | 251.12 | 0.8677 | 730.4 | 513.1 | |
3 | -3 | 3 | -3 | -19.88 | 279.89 | 60.24 | 250.73 | 0.8669 | 609.1 | 999999 |
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. |