12818
12820
12821
12816
12819
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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | E04N11 (-68",255") |
E42-W55 (97) |
14.2 | 0.3 | 5.8e20 |
2 | W18N66 (120",895") |
E44-W56 (100) |
1.3 | 0.5 | 3.1e20 |
3 | E41S26 (-564",-365") |
E48-E31 (17) |
1.0 | 0.9 | 1.9e20 |
4 | W35S76 (134",-906") |
E61-W77 (138) |
0.6 | -0.9 | -3.2e20 |
5 | E04S23 (-54",-305") |
E09-W09 (18) |
0.5 | 1.3 | 1.1e20 |
6 | -776 (-721",E49S03") |
3.7e03 (0.2) |
2.9 | -4.4 | -1.6e20 |
7 | E42N07 (-634",178") |
E45-E40 (5) |
0.1 | -1.4 | -2.1e19 |
8 | W43N02 (648",90") |
W41-W45 (4) |
0.1 | -0.7 | -7.8e18 |
9 | W17N19 (262",375") |
W15-W19 (4) |
0.0 | -2.8 | -2.4e19 |
10 | E07S13 (-113",-148") |
E09-E05 (4) |
0.0 | -3.6 | -2.2e19 |
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 27-Apr-2021 19:30 UT . |