19 October 2023
⇐20231018 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231020⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W03N48
(33",655") 		E21-W25
(46) 		1.5 -3.3 -1.1e21
2 E42N12
(-632",135") 		E52-E31
(21) 		0.7 0.5 8.1e19

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 19-Oct-2023 23:30 UT .