28 November 2015
⇐20151127 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151129⇒

NOAA
4 Active Regions
12457
12458
12459
12460

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 E23N50
(-250",729") 		E80-W37
(117) 		8.2 0.5 2.9e33
2 W03S14
(43",-262") 		E09-W11
(20) 		2.1 1.4 6.0e32
3 W48S69
(253",-915") 		E07-W67
(74) 		0.5 -0.8 -3.1e33

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-Nov-2015 21:35 UT .