30 August 2022
⇐20220829 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220831⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E32N13
(-491",114") 		E58-E15
(43) 		4.3 2.2 1.7e21
2 E09N39
(-112",499") 		E27-W16
(43) 		2.5 0.7 3.0e20
3 W44S48
(447",-754") 		W09-W60
(51) 		2.0 -1.1 -8.8e20
4 E49N69
(-256",853") 		E45-W79
(124) 		1.7 0.6 4.2e20
5 E34S37
(-421",-646") 		E51-E21
(30) 		0.6 4.7 7.9e20
6 W15S70
(85",-925") 		W01-W21
(20) 		0.1 -0.6 -4.1e19
7 W07N04
(124",-46") 		3
(7.5e02) 		-1.1 5.1 3.8e19

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 30-Aug-2022 23:30 UT .