4 June 2023
⇐20230603 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230605⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W55S51
(487",-732") 		E21-W77
(98) 		2.1 1.4 1.3e21
2 E51S43
(-535",-648") 		E75-E28
(47) 		1.4 1.9 8.9e20
3 E38N31
(-496",489") 		E46-E21
(25) 		1.2 6.3 1.8e21
4 E45N10
(-654",174") 		E49-E38
(11) 		0.3 1.7 1.2e20

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 4-Jun-2023 23:30 UT .