12818
12820
12821
12819
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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | W04S04 (71",-1") |
E38-W40 (78) |
17.7 | 0.3 | 8.9e20 |
2 | W20N67 (123",903") |
E47-W64 (111) |
0.9 | 0.8 | 3.6e20 |
3 | W23S24 (340",-322") |
W14-W30 (16) |
0.5 | 1.3 | 1.1e20 |
4 | E28N58 (-241",837") |
E34-E23 (11) |
0.1 | 0.8 | 3.2e19 |
5 | E08N28 (-111",508") |
E11-E05 (6) |
0.1 | -1.2 | -1.6e19 |
6 | W03S12 (48",-133") |
W01-W05 (4) |
0.0 | -1.5 | -1.1e19 |
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 29-Apr-2021 19:30 UT . |