12 January 2023
⇐20230111 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230113⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E33N30
(-456",547") 		E35-E29
(6) 		0.2 0.8 3.9e19
2 E63S51
(-546",-736") 		E83-E49
(34) 		0.2 -0.8 -6.1e19
3 E27N23
(-410",441") 		E31-E24
(7) 		0.1 3.8 5.7e19

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 12-Jan-2023 20:30 UT .