1 March 2023
⇐20230228 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230302⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E18N19
(-291",417") 		E32-W16
(48) 		7.8 -2.4 -3.4e21
2 W41S68
(242",-855") 		W55-W65
(10) 		0.7 -0.4 -1.0e20

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 1-Mar-2023 20:30 UT .