14 December 2023
⇐20231213 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231215⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E24N12
(-390",219") 		E37-W04
(41) 		3.5 0.9 5.3e20
2 W43S50
(427",-739") 		W36-W56
(20) 		0.6 0.3 6.2e19
3 E61S33
(-720",-522") 		E73-E48
(25) 		0.6 -2.5 -5.5e20
4 W17N32
(242",525") 		W09-W28
(19) 		0.5 -7.0 -7.0e20
5 E09N53
(-92",783") 		E14-W05
(19) 		0.3 1.3 1.0e20
6 W28S18
(441",-294") 		W22-W33
(11) 		0.2 0.6 2.8e19
7 E14N42
(-172",668") 		E19-E08
(11) 		0.1 -1.1 -3.3e19
8 E41N07
(-640",130") 		E43-E39
(4) 		0.1 2.9 3.5e19

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 14-Dec-2023 20:30 UT .