8 December 2017
⇐20171207 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171209⇒

NOAA
1 Active Region
12690

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 E19N51
(-195",765") 		E70-W19
(89) 		7.8 1.0 6.5e33
2 E36S19
(-541",-319") 		E49-E22
(27) 		1.8 -0.7 -5.6e32
3 W33S75
(132",-943") 		W19-W57
(38) 		0.1 -1.0 -7.6e32
4 E36S73
(-164",-933") 		E61-E41
(20) 		0.1 -1.2 -5.2e32

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 8-Dec-2017 20:30 UT .