31 May 2022
⇐20220530 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220601⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W37S75
(147",-912") 		E12-W62
(74) 		0.3 -1.3 -3.1e20
2 E11S22
(-169",-349") 		E13-E09
(4) 		0.0 -3.2 -2.3e19

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 31-May-2022 23:30 UT .