group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15.98 | 55.24 | 10.15 | 35.10 | -3.07 | 160.92 | -38.08 | 101.02 | 0.6298 | 943.0 | 450.9 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15.98 | 51.24 | 10.15 | 32.50 | -3.04 | 161.03 | -37.97 | 101.02 | 0.6282 | 1051.8 | 439.5 | |
0.00 | 0.87 | 0.00 | 0.56 | -0.61 | 160.03 | -38.97 | 96.93 | 0.6358 | 566.0 | 390.9 | |
0.00 | 0.78 | 0.00 | 0.51 | -4.36 | 159.50 | -39.50 | 102.53 | 0.6520 | 744.0 | 643.4 | |
0.00 | 1.13 | 0.00 | 0.74 | -4.67 | 159.36 | -39.64 | 102.95 | 0.6547 | 690.0 | 572.8 | |
0.00 | 1.22 | 0.00 | 0.79 | -3.62 | 159.31 | -39.69 | 101.35 | 0.6524 | 667.0 | 578.1 |
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. |