13670
13671
13672
13673
13674
13676
13679
13680
13682
13683
13685
13686
13678
13681
13684
|
|||||||||||
|
|
|
|||||||||
|
Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | E40N52 (-375",765") |
E71-E17 (54) |
2.8 | -1.4 | -1.3e21 |
2 | E22S60 (-178",-805") |
E29-E14 (15) |
0.1 | 0.4 | 1.9e19 |
3 | E44S42 (-495",-613") |
E53-E41 (12) |
0.1 | -1.0 | -2.8e19 |
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 18-May-2024 23:30 UT . |