28 September 2024
20240927 Week Rotation Today Rotation Week 20240929



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W52N65
(318",833")
W29-W60
(31)
1.0 -0.5 -1.9e20
2 W38N13
(570",132")
W35-W41
(6)
0.2 -1.6 -5.6e19
3 E45N29
(-595",399")
E49-E41
(8)
0.1 10.9 1.4e20

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 28-Sep-2024 23:30 UT .