16 October 2023
⇐20231015 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231017⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E42N44
(-465",613") 		E58-E31
(27) 		0.8 -2.7 -6.0e20
2 W10S05
(162",-179") 		W08-W12
(4) 		0.1 -2.4 -4.3e19

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 16-Oct-2023 23:30 UT .