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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | W18N52 (185",768") |
E70-W52 (122) |
7.1 | 1.0 | 5.7e33 |
2 | W15S70 (90",-916") |
E37-W46 (83) |
0.8 | -1.5 | -3.2e33 |
3 | E48N20 (-678",327") |
E53-E41 (12) |
0.2 | 3.2 | 3.9e32 |
4 | W26S30 (369",-492") |
W23-W30 (7) |
0.1 | -0.8 | -3.7e31 |
5 | E18S32 (-260",-525") |
E20-E16 (4) |
0.0 | -1.4 | -2.4e31 |
6 | W39S05 (609",-95") |
W37-W41 (4) |
0.0 | 1.6 | 2.5e31 |
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 4-Dec-2017 20:30 UT . |