19 April 2022
⇐20220418 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220420⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W08N03
(126",129") 		E26-W31
(57) 		6.0 1.2 1.1e21
2 W25S67
(157",-848") 		E54-W29
(83) 		1.9 -1.3 -8.6e20
3 E30N05
(-481",163") 		E34-E27
(7) 		0.3 1.3 6.1e19

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-Apr-2022 23:30 UT .