31 May 2023
⇐20230530 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230601⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W07S39
(87",-593") 		E46-W35
(81) 		4.7 3.0 2.8e21
2 W09N10
(138",171") 		E05-W16
(21) 		1.3 1.6 3.4e20

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 31-May-2023 23:30 UT .