17 October 2023
⇐20231016 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231018⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E29N44
(-340",601") 		E47-E13
(34) 		1.2 -3.6 -9.0e20
2 W24S05
(387",-177") 		W21-W26
(5) 		0.1 -3.5 -8.8e19

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 17-Oct-2023 23:30 UT .