18 September 2022
⇐20220917 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220919⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E14N15
(-227",133") 		E34-W12
(46) 		7.1 0.6 6.6e20
2 W58N39
(631",545") 		W53-W63
(10) 		0.0 -2.6 -2.8e19

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 18-Sep-2022 23:30 UT .