3 June 2023
⇐20230602 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230604⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W43S45
(451",-669") 		E17-W59
(76) 		3.7 1.9 2.1e21
2 E62S44
(-600",-655") 		E79-E36
(43) 		0.6 1.3 3.7e20
3 E52N32
(-639",500") 		E61-E44
(17) 		0.4 3.4 3.7e20
4 W48N12
(686",200") 		W44-W51
(7) 		0.2 1.2 4.4e19

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 3-Jun-2023 23:30 UT .