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| Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
| 1 | E08S58 (-70",-759") |
E61-W76 (137) |
7.6 | -0.9 | -5.1e21 |
| 2 | E14S04 (-225",21") |
E35-W16 (51) |
6.8 | 0.0 | 6.3e19 |
| 3 | E20N66 (-132",903") |
E47-W28 (75) |
0.9 | 0.6 | 1.9e21 |
| 4 | W18N37 (240",648") |
W15-W22 (7) |
0.1 | -0.7 | -3.0e19 |
|
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 16-Apr-2020 19:30 UT . |
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