SDO HMI 2011-03-04 19:58:59 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.94 | 19.95 | 5.32 | 35.05 | 24.76 | 216.19 | 68.24 | 298.51 | 0.9608 | -115.4 | -138.7 | |
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back to the solar disc SDO HMI 2011-03-04 19:58:59 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 |
| 0.00 | 1.12 | 0.00 | 2.11 | 25.09 | 217.32 | 69.37 | 298.53 | 0.9660 | 313.0 | 229.0 | |
| 2.94 | 14.42 | 5.32 | 26.07 | 24.71 | 216.77 | 68.82 | 298.30 | 0.9633 | -420.2 | -296.2 | |
| 0.00 | 1.30 | 0.00 | 1.89 | 23.50 | 212.57 | 64.62 | 298.24 | 0.9420 | 418.0 | 330.1 | |
| 0.00 | 1.99 | 0.00 | 3.21 | 25.42 | 214.18 | 66.23 | 299.71 | 0.9531 | 196.0 | 120.1 | |
| 0.00 | 1.12 | 0.00 | 1.77 | 25.33 | 213.77 | 65.81 | 299.75 | 0.9510 | 233.0 | 300.2 | |
| 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. | |