3 September 2022
⇐20220902 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220904⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W33N21
(479",252") 		W09-W59
(50) 		6.3 2.0 2.3e21
2 E09N67
(-60",823") 		E54-W84
(138) 		3.9 0.9 1.1e21
3 E06N31
(-91",381") 		E11-W00
(11) 		0.6 3.1 3.5e20
4 E17N33
(-237",415") 		E21-E12
(9) 		0.2 5.9 2.0e20
5 E22N25
(-318",294") 		E25-E17
(8) 		0.1 6.6 1.3e20
6 E23N31
(-314",399") 		E26-E19
(7) 		0.1 6.1 1.2e20
7 W50N51
(459",683") 		W48-W48
(1.7e03) 		-0.7 2.7 4.5e19
8 W02N34
(33",437") 		E00-W04
(4) 		0.0 -1.0 -8.2e18

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 3-Sep-2022 23:30 UT .