7 January 2024
⇐20240106 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240108⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W21S45
(244",-654") 		E19-W51
(70) 		5.5 0.9 1.1e21
2 W00N52
(1",805") 		E16-W13
(29) 		0.9 1.5 3.5e20
3 W25N29
(360",529") 		W22-W28
(6) 		0.1 -1.7 -3.7e19
4 E68S42
(-679",-628") 		E70-E58
(12) 		0.1 0.3 1.3e19
5 W04S29
(54",-420") 		E00-W06
(6) 		0.1 -1.4 -1.7e19
6 W17N57
(152",853") 		W13-W22
(9) 		0.1 -1.3 -2.7e19
7 E25S47
(-283",-673") 		E28-E22
(6) 		0.0 -1.0 -1.1e19

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 7-Jan-2024 20:30 UT .