12927
12929
12930
12933
12932
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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | E21N06 (-348",177") |
E37-W05 (42) |
3.8 | 0.7 | 4.5e20 |
2 | W27S62 (213",-819") |
E72-W77 (149) |
3.4 | -1.2 | -1.3e21 |
3 | W08N21 (124",427") |
E01-W12 (13) |
0.5 | 2.7 | 2.5e20 |
4 | W34S01 (552",59") |
W30-W39 (9) |
0.2 | -1.6 | -6.1e19 |
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 20-Jan-2022 20:30 UT . |