SDO HMI 2011-03-04 20:58:59 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.37 | 17.36 | 6.08 | 31.48 | 24.79 | 216.15 | 68.75 | 298.41 | 0.9630 | -93.2 | -201.3 | |
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back to the solar disc SDO HMI 2011-03-04 20:58:59 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 | 13.56 | 4.52 | 25.35 | 24.74 | 216.73 | 69.33 | 298.20 | 0.9654 | -398.2 | -292.5 | |
| 0.00 | 0.69 | 0.00 | 1.03 | 23.50 | 212.57 | 65.17 | 298.08 | 0.9448 | 360.0 | 318.9 | |
| 0.95 | 1.99 | 1.56 | 3.28 | 25.30 | 214.10 | 66.70 | 299.47 | 0.9550 | 205.2 | 45.9 | |
| 0.00 | 1.12 | 0.00 | 1.82 | 25.30 | 213.76 | 66.36 | 299.55 | 0.9535 | 367.0 | 315.1 | |
| 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. | |