1 April 2022
⇐20220331 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220402⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W30S33
(399",-436") 		W12-W46
(34) 		2.2 -2.0 -8.2e20
2 E14S78
(-49",-910") 		E85-W86
(171) 		1.0 -1.4 -6.6e20
3 W48S46
(500",-633") 		W48-W52
(4) 		0.1 -1.0 -2.8e19
4 W36S10
(553",-77") 		W34-W38
(4) 		0.1 -1.1 -1.9e19
5 E17N33
(-241",606") 		E21-E14
(7) 		0.1 -0.7 -1.2e19
6 W11S34
(149",-448") 		W08-W13
(5) 		0.1 -2.7 -3.3e19

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 1-Apr-2022 23:30 UT .