group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
19 | 98 | 19 | 93 | 23.34 | 114.68 | 51.05 | 302.79 | 0.8514 | 473.1 | 30.0 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
12 | 78 | 12 | 75 | 22.46 | 116.11 | 52.48 | 301.16 | 0.8587 | 509.7 | 79.7 | |
7 | -1 | 7 | -1 | 22.82 | 115.83 | 52.19 | 301.67 | 0.8578 | 438.5 | 999999 | |
0 | 7 | 0 | 7 | 24.74 | 112.03 | 48.40 | 305.48 | 0.8362 | 250.0 | 329.9 | |
0 | 13 | 0 | 11 | 27.52 | 107.33 | 43.69 | 310.95 | 0.8134 | -290.0 | -499.6 |
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. |