19 September 2024
20240918 Week Rotation Today Rotation Week 20240920



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W35N64
(242",807")
E04-W84
(88)
1.5 -0.1 -4.1e19
2 E28N05
(-445",-17")
E41-E15
(26)
1.1 3.9 7.5e20
3 W18N34
(240",435")
W13-W22
(9)
0.3 6.4 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 19-Sep-2024 23:30 UT .