| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.91 | 20.50 | 2.16 | 11.31 | 12.65 | 282.35 | -16.98 | 40.46 | 0.4406 | 163.0 | 19.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-15 16:00:29 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 |
| 1.39 | 2.78 | 0.76 | 1.52 | 12.37 | 283.89 | -15.44 | 38.25 | 0.4217 | -977.0 | -785.7 | |
| 0.00 | 2.08 | 0.00 | 1.15 | 12.96 | 283.35 | -15.98 | 38.35 | 0.4343 | -690.0 | -541.5 | |
| 0.87 | 5.21 | 0.48 | 2.86 | 12.68 | 283.27 | -16.06 | 38.90 | 0.4316 | -947.5 | -757.7 | |
| 0.00 | 1.13 | 0.00 | 0.62 | 11.46 | 282.07 | -17.25 | 42.82 | 0.4295 | 768.0 | 493.3 | |
| 0.00 | 1.65 | 0.00 | 0.91 | 12.16 | 282.00 | -17.33 | 41.85 | 0.4383 | 934.0 | 652.2 | |
| 1.65 | 3.82 | 0.92 | 2.13 | 13.21 | 281.05 | -18.27 | 41.76 | 0.4602 | 966.0 | 711.1 | |
| 0.00 | 2.87 | 0.00 | 1.59 | 12.86 | 280.98 | -18.34 | 42.39 | 0.4570 | 1020.0 | 737.1 | |
| 0.00 | 0.96 | 0.00 | 0.53 | 11.95 | 281.05 | -18.28 | 43.70 | 0.4459 | 554.0 | 497.1 | |
| 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. | |