24 March 2022
20220323 Week Rotation Today Rotation Week 20220325



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W28S08
(444",-33")
E13-W69
(82)
10.4 0.8 1.5e21
2 W72S68
(349",-870")
W68-W85
(17)
0.1 -1.6 -7.6e19
3 E18S15
(-290",-135")
E20-E16
(4)
0.0 -1.1 -7.2e18

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 24-Mar-2022 20:30 UT .