group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
26 | 78 | 13 | 39 | -2.10 | 259.83 | -4.77 | 56.81 | 0.1139 | -61.0 | -81.0 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 4 | 0 | 2 | -7.02 | 265.16 | 0.56 | 217.41 | 0.0159 | 995.0 | 760.8 | |
14 | 34 | 7 | 17 | -1.40 | 260.60 | -4.00 | 39.34 | 0.1106 | -1369.7 | -893.8 | |
0 | 5 | 0 | 3 | -1.94 | 259.66 | -4.94 | 48.69 | 0.1151 | -333.0 | -214.8 | |
0 | 7 | 0 | 3 | -1.97 | 258.84 | -5.76 | 53.23 | 0.1258 | 684.0 | 484.8 | |
12 | 28 | 6 | 14 | -2.32 | 258.37 | -6.23 | 57.59 | 0.1290 | 1414.8 | 693.2 |
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. |