22 February 2022
20220221 Week Rotation Today Rotation Week 20220223



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E29S02
(-464",69")
E54-W21
(75)
10.1 0.1 1.6e20
2 E28S30
(-399",-388")
E35-E20
(15)
0.7 1.6 2.2e20
3 W64S70
(297",-886")
W42-W75
(33)
0.4 -1.2 -2.7e20
4 W22S53
(218",-704")
W19-W26
(7)
0.0 -0.9 -8.3e18
5 W15S54
(145",-712")
W13-W18
(5)
0.0 -1.1 -9.0e18

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 22-Feb-2022 20:30 UT .