17 June 2023
⇐20230616 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230618⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W41N09
(608",139") 		W04-W74
(70) 		5.2 -0.7 -8.1e20
2 W02S33
(22",-539") 		E12-W16
(28) 		3.5 -3.1 -2.0e21
3 W20N38
(252",560") 		W06-W28
(22) 		1.0 2.5 5.4e20

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 17-Jun-2023 23:30 UT .