24 October 2023
⇐20231023 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231025⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E39N28
(-537",388") 		E48-E21
(27) 		4.7 4.1 4.0e21
2 W30N13
(476",142") 		W23-W40
(17) 		0.6 0.6 6.9e19
3 E28S35
(-374",-613") 		E34-E22
(12) 		0.1 6.7 1.7e20

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 24-Oct-2023 23:30 UT .