15 January 2024
⇐20240114 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240116⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W33N10
(528",232") 		W15-W43
(28) 		1.4 2.2 5.9e20
2 E32N18
(-486",370") 		E41-E23
(18) 		0.3 13.7 9.2e20
3 E17N13
(-274",288") 		E21-E12
(9) 		0.3 9.6 4.1e20

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 15-Jan-2024 20:30 UT .