SDO HMI 2011-10-31 21:58:59 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.46 | 37.91 | 13.91 | 199.63 | -13.30 | 119.48 | -83.32 | 103.85 | 0.9955 | -263.7 | 24.8 | |
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back to the solar disc SDO HMI 2011-10-31 21:58:59 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.42 | 25.36 | 9.93 | 99.05 | -15.27 | 121.24 | -81.56 | 105.99 | 0.9932 | -401.7 | 25.7 | |
| 1.04 | -1.00 | 3.98 | -1.00 | -14.67 | 121.68 | -81.12 | 105.45 | 0.9922 | -201.0 | 999999 | |
| 0.00 | 3.38 | 0.00 | 24.60 | -12.13 | 117.92 | -84.87 | 102.52 | 0.9978 | 258.0 | 187.6 | |
| 0.00 | 7.44 | 0.00 | 63.41 | -11.43 | 117.46 | -85.34 | 101.78 | 0.9982 | 62.0 | -31.2 | |
| 0.00 | 1.73 | 0.00 | 12.57 | -10.82 | 117.81 | -84.98 | 101.21 | 0.9978 | 10.0 | -18.0 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
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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 | |
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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. | |