SDO HMI 2011-02-28 07:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.98 | 16.38 | 4.38 | 10.42 | 17.86 | 177.25 | -29.99 | 49.37 | 0.6287 | -785.0 | -596.0 | |
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back to the solar disc SDO HMI 2011-02-28 07:58:58 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 |
| 0.00 | 1.64 | 0.00 | 1.04 | 18.61 | 178.23 | -29.02 | 47.55 | 0.6253 | -870.0 | -657.6 | |
| 6.98 | 10.52 | 4.38 | 6.59 | 17.40 | 178.27 | -28.97 | 49.04 | 0.6144 | -869.9 | -623.3 | |
| 0.00 | 0.78 | 0.00 | 0.50 | 18.41 | 177.25 | -29.99 | 48.71 | 0.6334 | -830.0 | -728.6 | |
| 0.00 | 0.69 | 0.00 | 0.45 | 17.70 | 174.80 | -32.44 | 51.78 | 0.6528 | -521.0 | -401.0 | |
| 0.00 | 1.03 | 0.00 | 0.69 | 19.09 | 173.67 | -33.57 | 51.00 | 0.6748 | -688.0 | -554.9 | |
| 0.00 | 1.72 | 0.00 | 1.15 | 18.93 | 173.59 | -33.65 | 51.25 | 0.6743 | -644.0 | -532.2 | |
| 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. | |