group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
24 | 52 | 17 | 37 | 18.61 | 24.77 | 44.96 | 291.57 | 0.7221 | -275.7 | -63.0 |
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back to the solar disc SOHO MDI 2000-10-29 01:35:32 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
3 | 12 | 2 | 9 | 18.37 | 26.68 | 46.87 | 290.74 | 0.7429 | 589.2 | 460.6 | |
7 | 14 | 5 | 10 | 19.04 | 26.26 | 46.45 | 291.73 | 0.7399 | 637.0 | 464.2 | |
14 | 26 | 10 | 18 | 18.37 | 23.04 | 43.23 | 291.71 | 0.7020 | -905.1 | -617.7 | |
-3 | -3 | -3 | -3 | 18.62 | 22.95 | 43.14 | 292.08 | 0.7017 | 999999 | 999999 |
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. |