24 August 2022
⇐20220823 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220825⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E31S41
(-377",-689") 		E54-E08
(46) 		4.0 -1.7 -1.9e21
2 W24N12
(377",97") 		W05-W40
(35) 		2.3 0.6 2.2e20
3 E42S20
(-594",-406") 		E49-E33
(16) 		0.5 -3.2 -3.5e20
4 W25S54
(234",-829") 		W21-W28
(7) 		0.1 -0.6 -2.9e19
5 E46S30
(-588",-546") 		E48-E43
(5) 		0.0 -4.5 -6.3e19
6 E14N32
(-199",412") 		E16-E12
(4) 		0.0 -1.4 -1.1e19
7 E07N10
(-118",52") 		E09-E06
(3) 		0.0 -1.1 -7.2e18

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 24-Aug-2022 23:30 UT .