16 February 2023
⇐20230215 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230217⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E24S13
(-380",-105") 		E45-W02
(47) 		3.3 1.8 1.0e21
2 E49S60
(-370",-793") 		E84-W01
(85) 		2.1 -1.0 -7.5e20
3 W29N35
(380",644") 		W25-W36
(11) 		0.3 1.4 1.1e20

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 16-Feb-2023 20:30 UT .