group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
30 | 120 | 16 | 61 | -2.14 | 260.49 | 16.11 | 283.65 | 0.2864 | -240.0 | 8.0 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 3 | 0 | 2 | -1.47 | 262.71 | 18.33 | 283.77 | 0.3251 | -826.0 | -672.4 | |
14 | 34 | 7 | 18 | -1.94 | 262.63 | 18.25 | 282.41 | 0.3219 | -1494.3 | -1111.5 | |
4 | 8 | 2 | 4 | -2.53 | 262.52 | 18.14 | 280.69 | 0.3179 | -1303.9 | -1164.3 | |
0 | 6 | 0 | 3 | -2.29 | 261.61 | 17.23 | 282.10 | 0.3041 | -1068.0 | -972.8 | |
0 | 11 | 0 | 5 | -2.23 | 259.75 | 15.37 | 283.89 | 0.2740 | 708.0 | 541.2 | |
2 | 22 | 1 | 11 | -2.16 | 259.18 | 14.80 | 284.67 | 0.2651 | 1055.2 | 1010.4 | |
3 | 15 | 2 | 7 | -1.87 | 258.49 | 14.12 | 286.51 | 0.2554 | 1404.1 | 895.9 | |
7 | 21 | 4 | 11 | -2.49 | 258.46 | 14.08 | 284.18 | 0.2519 | 1364.3 | 847.7 |
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. |