12 February 2023
⇐20230211 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230213⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E27N33
(-376",614") 		E40-E12
(28) 		1.0 1.2 2.7e20
2 E04N10
(-63",278") 		E07-W03
(10) 		0.3 1.9 8.1e19
3 E28N19
(-427",412") 		E31-E26
(5) 		0.1 19.2 2.7e20

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 12-Feb-2023 20:30 UT .