SDO HMI 2011-02-28 03:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.78 | 16.38 | 3.70 | 10.64 | 17.96 | 177.63 | -31.80 | 50.89 | 0.6482 | -734.2 | -558.3 | |
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back to the solar disc SDO HMI 2011-02-28 03:58:58 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 |
| 5.78 | 9.83 | 3.70 | 6.31 | 17.46 | 178.28 | -31.14 | 50.95 | 0.6376 | -868.0 | -659.6 | |
| 0.00 | 1.12 | 0.00 | 0.73 | 18.59 | 178.02 | -31.40 | 49.76 | 0.6493 | -816.0 | -593.6 | |
| 0.00 | 0.86 | 0.00 | 0.56 | 18.47 | 177.50 | -31.93 | 50.38 | 0.6536 | -640.0 | -562.8 | |
| 0.00 | 1.64 | 0.00 | 1.09 | 19.80 | 176.83 | -32.60 | 49.33 | 0.6706 | -605.0 | -400.6 | |
| 0.00 | 1.81 | 0.00 | 1.20 | 18.18 | 176.07 | -33.36 | 51.93 | 0.6659 | -594.0 | -539.5 | |
| 0.00 | 1.12 | 0.00 | 0.75 | 18.09 | 175.49 | -33.94 | 52.51 | 0.6712 | -521.0 | -428.2 | |
| 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. | |