28 December 2016
⇐20161227 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161229⇒

NOAA
1 Active Region
12621

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 E09S07
(-156",-70") 		E16-W10
(26) 		3.4 1.4 8.7e32
2 E07N63
(-52",886") 		E63-W65
(128) 		3.0 0.6 3.3e33
3 W26S71
(139",-911") 		W06-W71
(65) 		0.6 -1.3 -1.9e33

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 28-Dec-2016 20:30 UT .