SDO HMI 2011-03-01 18:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.90 | 16.81 | 1.03 | 9.33 | 17.76 | 177.98 | -10.05 | 21.28 | 0.4541 | -413.1 | -51.7 | |
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back to the solar disc SDO HMI 2011-03-01 18:58:58 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 |
| 1.90 | 8.10 | 1.03 | 4.41 | 16.04 | 180.14 | -7.89 | 18.52 | 0.4170 | 819.4 | 740.2 | |
| 0.00 | 0.95 | 0.00 | 0.53 | 18.97 | 177.91 | -10.12 | 20.71 | 0.4717 | -621.0 | -424.8 | |
| 0.00 | 1.29 | 0.00 | 0.72 | 18.51 | 177.68 | -10.34 | 21.50 | 0.4664 | -807.0 | -758.0 | |
| 0.00 | 1.12 | 0.00 | 0.63 | 19.53 | 176.59 | -11.43 | 22.65 | 0.4872 | -663.0 | -474.5 | |
| 0.00 | 4.14 | 0.00 | 2.35 | 19.50 | 175.37 | -12.66 | 24.81 | 0.4942 | -641.0 | -616.9 | |
| 0.00 | 1.21 | 0.00 | 0.69 | 19.49 | 174.72 | -13.30 | 25.92 | 0.4981 | -603.0 | -581.6 | |
| 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. | |