27 August 2022
⇐20220826 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220828⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W02S45
(19",-750") 		56
(1.5e05) 		-2.2 3.4 5.1e21
2 W53N09
(753",77") 		W38-W70
(32) 		0.9 0.4 1.0e20
3 E44N33
(-549",449") 		E58-E36
(22) 		0.7 1.4 2.3e20
4 E54N76
(-183",898") 		E91-E45
(46) 		0.4 0.7 1.6e20
5 W08S15
(123",-361") 		E01-W13
(14) 		0.3 -3.7 -2.1e20

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 27-Aug-2022 23:30 UT .