4 October 2022
⇐20221003 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221005⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E09N01
(-151",-91") 		E14-W03
(17) 		1.2 2.1 4.0e20
2 E28S41
(-333",-704") 		E55-E10
(45) 		1.1 2.9 8.4e20
3 W46N29
(607",399") 		W34-W53
(19) 		0.6 5.4 7.0e20
4 W24N28
(345",355") 		W19-W29
(10) 		0.3 23.6 1.1e21

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-Oct-2022 23:30 UT .