12740
12741
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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | E05S61 (-41",-802") |
E78-W67 (145) |
4.4 | -0.8 | -3.4e21 |
2 | E34N70 (-179",909") |
E56-W29 (85) |
0.5 | 0.9 | 2.9e21 |
3 | W31S13 (483",-169") |
W25-W38 (13) |
0.5 | -0.6 | -9.7e19 |
4 | W63S58 (453",-789") |
W61-W63 (2) |
0.1 | -0.6 | -3.1e20 |
5 | W37N18 (544",342") |
W34-W38 (4) |
0.1 | -0.6 | -4.1e19 |
6 | E18S29 (-261",-408") |
E21-E15 (6) |
0.1 | -1.2 | -3.0e19 |
7 | W24N25 (358",444") |
W23-W26 (3) |
0.0 | -0.6 | -8.5e18 |
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 8-May-2019 22:00 UT . |