17 May 2022
⇐20220516 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220518⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W33N02
(519",66") 		E09-W58
(67) 		6.5 0.4 5.2e20
2 W29N63
(208",858") 		E18-W42
(60) 		1.0 0.9 3.8e20
3 W54N31
(658",506") 		W43-W63
(20) 		0.6 2.4 4.0e20
4 E04N22
(-54",396") 		E05-E01
(4) 		0.1 8.3 8.3e19

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-May-2022 23:30 UT .