10 January 2023
⇐20230109 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230111⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W56N42
(605",676") 		W52-W71
(19) 		0.2 -2.8 -2.1e20
2 W07S03
(111",16") 		W05-W08
(3) 		0.1 -3.4 -4.4e19

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 10-Jan-2023 20:30 UT .