8 April 2023
⇐20230407 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230409⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W17N10
(280",266") 		W07-W26
(19) 		0.7 2.2 2.6e20
2 E23S44
(-263",-600") 		E30-E14
(16) 		0.4 2.7 2.2e20
3 E15N22
(-227",448") 		E19-E09
(10) 		0.2 8.1 3.1e20

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 8-Apr-2023 23:30 UT .