29 September 2022
20220928 Week Rotation Today Rotation Week 20220930



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E04N17
(-63",174")
E29-W21
(50)
6.0 2.9 2.7e21
2 W24N29
(339",376")
W08-W36
(28)
3.4 1.8 1.1e21
3 E25N69
(-145",849")
E41-W65
(106)
1.8 0.9 5.9e20
4 W06N41
(78",539")
W05-W08
(3)
0.0 0.7 6.3e18
5 W26N60
(208",774")
W22-W28
(6)
0.0 -0.6 -5.6e18

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 29-Sep-2022 23:30 UT .