15 April 2022
⇐20220414 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220416⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W05N25
(68",490") 		E55-W52
(107) 		16.0 0.4 1.2e21
2 E35S65
(-235",-829") 		E44-W13
(57) 		2.2 -0.9 -7.3e20
3 E65N03
(-865",94") 		E75-E58
(17) 		0.2 0.4 2.5e19
4 W29N20
(443",397") 		W28-W31
(3) 		0.1 3.6 4.3e19

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 15-Apr-2022 23:30 UT .