28 January 2022
20220127 Week Rotation Today Rotation Week 20220129



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E11S04
(-189",36")
E43-W27
(70)
8.0 -0.1 -1.7e20
2 W42N06
(645",174")
W31-W50
(19)
1.2 0.5 1.2e20
3 E60N01
(-848",70")
E72-E51
(21)
0.4 -0.4 -5.2e19
4 E38S26
(-533",-362")
E44-E30
(14)
0.2 -1.4 -5.8e19
5 E49S18
(-697",-234")
E51-E45
(6)
0.1 -0.9 -2.0e19

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 28-Jan-2022 20:30 UT .