28 July 2022
⇐20220727 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220729⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W20N07
(315",24") 		E09-W36
(45) 		3.9 0.6 4.0e20
2 E27S29
(-378",-525") 		E44-W01
(45) 		3.0 -6.4 -4.1e21
3 E04S56
(-34",-830") 		82
(9.2e04) 		-1.5 3.3 3.0e21
4 E57N67
(-309",847") 		E62-E43
(19) 		0.2 0.6 4.6e19
5 E03N22
(-43",269") 		E04-E01
(3) 		0.0 2.0 1.3e19

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 28-Jul-2022 23:30 UT .