19 June 2023
⇐20230618 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230620⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W30S32
(403",-516") 		W16-W42
(26) 		2.0 -2.7 -1.2e21
2 E47N39
(-538",577") 		E59-E32
(27) 		0.6 -2.7 -4.8e20
3 W52N38
(587",576") 		W37-W63
(26) 		0.6 1.9 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 19-Jun-2023 23:30 UT .