| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 9.74 | 0.00 | 5.39 | 13.70 | 108.42 | 15.13 | 324.95 | 0.4339 | 463.2 | 556.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 07:00:32 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 | 0.97 | 0.00 | 0.60 | 13.78 | 125.04 | 31.75 | 302.95 | 0.6113 | -596.0 | -503.1 | |
| 0.00 | 1.05 | 0.00 | 0.57 | 7.53 | 113.10 | 19.81 | 305.22 | 0.4131 | 691.0 | 532.1 | |
| 0.00 | 0.88 | 0.00 | 0.51 | 19.76 | 109.96 | 16.67 | 328.42 | 0.5176 | 755.0 | 642.4 | |
| 0.00 | 1.58 | 0.00 | 0.92 | 20.69 | 109.80 | 16.51 | 329.64 | 0.5281 | 693.0 | 566.2 | |
| 0.00 | 5.26 | 0.00 | 2.79 | 11.54 | 103.15 | 9.86 | 331.54 | 0.3536 | 773.0 | 771.5 | |
| 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. | |