13 August 2022
⇐20220812 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220814⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E30N10
(-469",73") 		E70-W00
(70) 		5.7 -3.7 -3.7e21
2 W61N75
(210",897") 		W02-W86
(84) 		0.4 1.0 3.0e20
3 W39S52
(372",-791") 		W32-W47
(15) 		0.2 3.9 2.5e20

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 13-Aug-2022 23:30 UT .