group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
100 | 690 | 111 | 768 | 19.83 | 358.84 | 62.19 | 291.69 | 0.8974 | 613.8 | 329.8 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
20 | 664 | 22 | 741 | 18.70 | 359.19 | 62.54 | 290.39 | 0.8986 | 661.6 | 329.5 | |
12 | -1 | 13 | -1 | 19.99 | 359.63 | 62.99 | 291.74 | 0.9032 | 164.9 | 999999 | |
21 | -1 | 24 | -1 | 20.57 | 359.51 | 62.86 | 292.39 | 0.9030 | 187.5 | 999999 | |
10 | -1 | 11 | -1 | 18.68 | 358.13 | 61.48 | 290.53 | 0.8908 | 940.9 | 999999 | |
36 | -1 | 40 | -1 | 20.09 | 358.46 | 61.81 | 292.04 | 0.8949 | 902.4 | 999999 | |
0 | 10 | 0 | 11 | 21.32 | 355.93 | 59.28 | 293.88 | 0.8778 | 421.0 | 331.4 | |
1 | 16 | 1 | 16 | 21.93 | 356.34 | 59.69 | 294.48 | 0.8819 | 530.0 | 343.7 |
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. |