12 December 2020
⇐20201211 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201213⇒

NOAA
2 Active Regions
12790
12791

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W08N13
(130",231") 		E41-W47
(88) 		13.4 -0.1 -1.3e20
2 E32S61
(-251",-846") 		E76-E02
(74) 		1.9 -0.8 -5.9e20
3 E31N68
(-186",910") 		E74-W41
(115) 		1.2 0.8 4.6e20
4 W09S26
(134",-418") 		W06-W11
(5) 		0.1 -1.4 -1.6e19
5 E06N30
(-91",502") 		E08-E04
(4) 		0.1 -3.0 -3.3e19

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 12-Dec-2020 20:30 UT .