2 August 2022
⇐20220801 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220803⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W14N54
(135",705") 		E78-W42
(120) 		5.6 0.5 6.0e20
2 W38S27
(519",-501") 		W22-W68
(46) 		2.7 -4.6 -2.9e21
3 E45N05
(-671",16") 		E54-E35
(19) 		1.4 1.8 5.1e20
4 E36S37
(-446",-628") 		E48-E26
(22) 		0.4 3.4 3.8e20
5 W63S47
(582",-713") 		W60-W68
(8) 		0.1 -0.7 -6.1e19
6 E60N62
(-382",809") 		E70-E50
(20) 		0.1 0.8 4.5e19
7 W52S55
(433",-802") 		W52-W53
(1) 		0.1 -0.8 -2.8e19

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 2-Aug-2022 23:30 UT .