14 January 2022
⇐20220113 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220115⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W20S14
(321",-170") 		W01-W35
(34) 		5.2 -2.2 -1.9e21
2 E02S64
(-18",-843") 		E66-W73
(139) 		4.1 -0.8 -1.0e21
3 W37S17
(556",-234") 		W32-W41
(9) 		0.1 -4.0 -1.1e20

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 14-Jan-2022 20:30 UT .