12818
12820
12821
12819
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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | E21N01 (-348",89") |
E49-W27 (76) |
16.7 | 0.3 | 6.8e20 |
2 | W05N66 (36",898") |
E58-W64 (122) |
1.3 | 0.6 | 3.7e20 |
3 | W08S24 (127",-314") |
E03-W15 (18) |
0.6 | 1.0 | 9.1e19 |
4 | W38S78 (127",-916") |
W06-W71 (65) |
0.2 | -1.1 | -1.7e20 |
5 | W33N16 (504",326") |
W31-W37 (6) |
0.1 | -1.1 | -2.9e19 |
6 | W25N10 (402",223") |
W23-W28 (5) |
0.1 | -0.9 | -1.6e19 |
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 28-Apr-2021 11:30 UT . |