group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
34 | 267 | 17 | 134 | 13.49 | 192.06 | -7.46 | 47.53 | 0.1725 | -1904.5 | -616.0 |
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back to the solar disc SOHO MDI 2000-08-18 20:47:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 6 | 0 | 3 | 14.14 | 201.94 | 2.41 | 342.17 | 0.1338 | -813.0 | -611.8 | |
0 | 5 | 0 | 2 | 16.12 | 195.47 | -4.05 | 22.85 | 0.1757 | 914.0 | 805.0 | |
0 | 7 | 0 | 4 | 15.72 | 195.44 | -4.09 | 23.97 | 0.1696 | 1204.0 | 885.6 | |
0 | 4 | 0 | 2 | 14.36 | 194.61 | -4.92 | 32.39 | 0.1557 | -686.0 | -580.5 | |
0 | 3 | 0 | 2 | 18.08 | 192.26 | -7.26 | 31.57 | 0.2306 | -623.0 | -525.1 | |
34 | 239 | 17 | 120 | 13.13 | 191.78 | -7.74 | 49.95 | 0.1722 | -2028.8 | -691.0 | |
-6 | -6 | -6 | -6 | 13.36 | 191.45 | -8.08 | 50.08 | 0.1791 | 999999 | 999999 | |
0 | 3 | 0 | 1 | 15.93 | 190.19 | -9.33 | 44.43 | 0.2238 | -861.0 | -735.0 |
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. |