| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 17.44 | 0.00 | 9.48 | -28.34 | 81.78 | -4.36 | 173.52 | 0.4049 | -247.6 | -215.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 20:00:31 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 | 0.88 | 0.00 | 0.47 | -23.99 | 98.65 | 12.50 | 213.23 | 0.3625 | 766.0 | 646.2 | |
| 0.00 | 1.23 | 0.00 | 0.65 | -23.35 | 98.05 | 11.91 | 213.07 | 0.3487 | 832.0 | 661.6 | |
| 0.00 | 1.75 | 0.00 | 0.92 | -22.99 | 95.60 | 9.46 | 208.04 | 0.3233 | 908.0 | 692.9 | |
| 0.00 | 1.58 | 0.00 | 0.82 | -24.01 | 91.35 | 5.20 | 195.43 | 0.3128 | 725.0 | 552.2 | |
| 0.00 | 1.40 | 0.00 | 0.76 | -29.25 | 79.79 | -6.35 | 165.97 | 0.3998 | -764.0 | -605.1 | |
| 0.00 | 0.88 | 0.00 | 0.48 | -29.89 | 78.81 | -7.33 | 164.42 | 0.4136 | -671.0 | -572.6 | |
| 0.00 | 1.05 | 0.00 | 0.58 | -31.43 | 76.49 | -9.65 | 161.26 | 0.4472 | -623.0 | -575.9 | |
| 0.00 | 1.05 | 0.00 | 0.57 | -29.33 | 76.35 | -9.79 | 159.10 | 0.4174 | -739.0 | -540.9 | |
| 0.00 | 0.70 | 0.00 | 0.42 | -38.29 | 75.16 | -10.98 | 164.17 | 0.5504 | -607.0 | -398.4 | |
| 0.00 | 1.75 | 0.00 | 0.95 | -28.80 | 76.02 | -10.12 | 157.94 | 0.4117 | -888.0 | -629.2 | |
| 0.00 | 1.14 | 0.00 | 0.63 | -31.21 | 75.31 | -10.84 | 158.98 | 0.4503 | -760.0 | -495.0 | |
| 0.00 | 2.45 | 0.00 | 1.33 | -27.78 | 75.13 | -11.02 | 155.06 | 0.4028 | -754.0 | -644.9 | |
| 0.00 | 1.58 | 0.00 | 0.90 | -33.06 | 72.00 | -14.14 | 155.48 | 0.4954 | -644.0 | -607.0 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
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. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
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. |
||
| 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. | |