28 October 2023
⇐20231027 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231029⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W21N23
(315",315") 		W06-W32
(26) 		4.9 5.3 4.4e21
2 W14N57
(125",765") 		W07-W19
(12) 		0.1 -2.1 -3.0e19

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-Oct-2023 23:30 UT .