16 December 2022
⇐20221215 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221217⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E17N18
(-271",319") 		E29-W03
(32) 		3.1 3.0 1.6e21
2 E20S44
(-242",-672") 		E38-W23
(61) 		2.0 -2.5 -1.2e21
3 W26S25
(392",-397") 		W16-W35
(19) 		0.4 -5.4 -4.3e20

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 16-Dec-2022 20:30 UT .