19 May 2022
⇐20220518 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220520⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W43N08
(640",159") 		W19-W68
(49) 		2.3 0.9 4.5e20
2 E45S06
(-673",-76") 		E51-E40
(11) 		0.4 -1.3 -9.6e19
3 E66S26
(-783",-396") 		E72-E62
(10) 		0.1 -1.7 -4.8e19

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 19-May-2022 23:30 UT .