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| Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
| 1 | E03S55 (-31",-810") |
E37-W57 (94) |
4.3 | -0.8 | -1.0e21 |
| 2 | W15N65 (105",828") |
E81-W63 (144) |
4.0 | 1.1 | 1.5e21 |
| 3 | W18S23 (272",-431") |
W00-W29 (29) |
2.7 | -0.0 | -8.7e18 |
| 4 | E41S21 (-577",-396") |
E49-E34 (15) |
0.5 | -0.5 | -6.1e19 |
| 5 | W15S07 (238",-182") |
W09-W20 (11) |
0.2 | -1.1 | -2.6e19 |
| 6 | E38N17 (-553",224") |
E42-E34 (8) |
0.1 | -0.6 | -1.5e19 |
| 7 | W16N49 (176",660") |
W13-W19 (6) |
0.1 | -0.8 | -1.3e19 |
| 8 | W34S23 (488",-418") |
W32-W36 (4) |
0.0 | -1.3 | -1.3e19 |
|
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 16-Jul-2019 23:30 UT . |
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