group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
3 | 41 | 2 | 23 | 10.54 | 223.64 | 25.88 | 280.04 | 0.4378 | 923.7 | 695.4 |
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back to the solar disc SOHO MDI 2000-08-18 23:59:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 3 | 0 | 2 | 11.39 | 224.88 | 27.11 | 281.60 | 0.4580 | 486.0 | 374.3 | |
0 | 4 | 0 | 2 | 10.57 | 224.62 | 26.85 | 279.87 | 0.4526 | 671.0 | 605.0 | |
3 | 9 | 2 | 5 | 11.10 | 224.26 | 26.50 | 281.14 | 0.4481 | 1070.3 | 863.0 | |
0 | 7 | 0 | 4 | 10.59 | 224.12 | 26.36 | 280.04 | 0.4451 | 898.0 | 847.8 | |
0 | 4 | 0 | 2 | 9.66 | 223.77 | 26.01 | 278.00 | 0.4384 | 838.0 | 701.8 | |
0 | 5 | 0 | 3 | 11.01 | 223.85 | 26.09 | 281.03 | 0.4416 | 746.0 | 594.6 | |
0 | 3 | 0 | 2 | 7.76 | 223.15 | 25.38 | 273.64 | 0.4274 | 802.0 | 672.4 | |
0 | 4 | 0 | 2 | 10.64 | 220.81 | 23.05 | 281.06 | 0.3938 | 725.0 | 578.7 | |
0 | 2 | 0 | 1 | 11.55 | 219.93 | 22.17 | 283.73 | 0.3822 | 757.0 | 640.2 |
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. |