23 September 2024
20240922 Week Rotation Today Rotation Week 20240924



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E37N62
(-267",799")
E62-E07
(55)
1.8 -0.9 -5.5e20
2 W32N05
(499",-14")
W19-W42
(23)
1.0 6.4 1.2e21
3 E20S03
(-334",-158")
E27-E15
(12)
0.3 -5.7 -2.9e20

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 23-Sep-2024 23:30 UT .