22 May 2022
⇐20220521 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220523⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E29S26
(-412",-393") 		E58-E04
(54) 		2.9 -2.4 -1.3e21
2 E20N34
(-263",556") 		E39-W02
(41) 		2.5 -4.5 -2.3e21
3 E52S72
(-235",-893") 		E75-E14
(61) 		0.3 -0.9 -1.9e20

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-May-2022 23:30 UT .