19 September 2022
20220918 Week Rotation Today Rotation Week 20220920



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W14N13
(219",102")
E22-W36
(58)
9.1 0.5 7.3e20
2 E60S34
(-682",-585")
E67-E58
(9)
0.2 -1.4 -1.2e20
3 W09N30
(128",372")
W04-W12
(8)
0.2 -1.1 -3.1e19
4 E49S13
(-702",-296")
E53-E45
(8)
0.1 -1.8 -6.0e19
5 E39S16
(-583",-357")
E42-E36
(6)
0.1 -1.9 -2.1e19
6 W31N02
(487",-72")
W29-W32
(3)
0.0 0.9 5.9e18

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-2022 23:30 UT .