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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | E18S40 (-220",-624") |
E45-W22 (67) |
13.6 | -0.5 | -3.1e21 |
2 | W21N64 (145",844") |
E66-W57 (123) |
3.4 | 0.9 | 4.8e21 |
3 | E34S23 (-491",-387") |
E45-E23 (22) |
1.0 | 0.5 | 2.3e20 |
4 | E54S42 (-571",-636") |
E63-E48 (15) |
0.4 | -0.5 | -2.8e20 |
5 | E32N34 (-411",525") |
E36-E28 (8) |
0.1 | -0.9 | -6.1e19 |
6 | W07N44 (80",646") |
W02-W11 (9) |
0.1 | -0.5 | -2.1e19 |
7 | E18N18 (-279",273") |
E19-E16 (3) |
0.0 | 0.9 | 9.7e18 |
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 13-Jun-2019 22:50 UT . |