25 October 2023
⇐20231024 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231026⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E25N28
(-357",381") 		E34-E08
(26) 		5.5 4.8 4.8e21
2 W43N12
(643",136") 		W38-W49
(11) 		0.4 0.6 5.1e19
3 E14S35
(-193",-613") 		E19-E09
(10) 		0.1 7.8 2.3e20

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 25-Oct-2023 23:30 UT .