26 September 2024
20240925 Week Rotation Today Rotation Week 20240927



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W27N65
(180",823")
E19-W34
(53)
1.7 -0.4 -2.4e20
2 W21S03
(346",-165")
W11-W28
(17)
0.6 -6.7 -6.7e20
3 W10N15
(162",141")
W07-W14
(7)
0.3 -1.0 -4.2e19
4 E18S15
(-282",-360")
E20-E14
(6)
0.2 -16.2 -5.8e20
5 E05S46
(-55",-769")
E09-W02
(11)
0.1 2.9 1.1e20

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 26-Sep-2024 23:30 UT .