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| Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
| 1 | W17S12 (279",-312") |
W07-W26 (19) |
3.0 | -1.4 | -7.3e20 |
| 2 | E42N20 (-604",235") |
E62-E22 (40) |
2.8 | 1.4 | 8.0e20 |
| 3 | E38N60 (-291",773") |
E89-E12 (77) |
1.0 | 0.6 | 1.8e20 |
| 4 | W53N72 (232",876") |
W19-W91 (72) |
0.7 | 1.2 | 4.5e20 |
| 5 | E43S09 (-644",-229") |
E50-E37 (13) |
0.4 | 1.0 | 8.4e19 |
| 6 | E44N02 (-665",-43") |
E49-E39 (10) |
0.3 | 1.7 | 1.1e20 |
| 7 | W16S68 (96",-918") |
E06-W34 (40) |
0.2 | -1.3 | -2.0e20 |
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Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA. The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476. An extensive copy of coronal hole properties are available at: solarmonitor.org/data. The latest positions of the coronal holes are given in heliocentric co-ordinates, and the region positions are valid on 25-Aug-2019 19:30 UT . |
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